Timber Rot Survey & Treating Damp Before Structural Repairs Get Expensive

What timber rot really means (and why fixing the damp comes first)

Timber rot happens when wood stays damp long enough for decay fungi to feed on it, so the real issue is usually persistent moisture—the problem, not the timber. In most homes surveyed professionally, the key questions are what has been keeping the wood wet, how long it has been happening, and whether that has started to reduce the strength of joists, wall plates or rafters. Once you see rot as a moisture problem, the order of work becomes clearer: a good timber rot survey is there to answer four questions – what type of decay is present, what is causing the damp conditions, how far it has spread, and what sequence of actions will stop it coming back. A specialist firm such as Sussex Damp Experts will focus first on the moisture mechanism and the building details around it before anyone talks about chemical treatments or replacing timber.

You are also trying to separate appearance from capacity. Some darkening, old staining or historic repairs can look alarming but have no current structural impact. Conversely, apparently sound paintwork can be hiding decayed timber in a joist pocket or behind a skirting. That is why any serious assessment looks at movement, bearing, moisture levels and surrounding construction, not just surface marks.

Lasting repairs start when you treat moisture as the main problem, not the timber.

You might be wondering whether your concern is urgent or can wait until you next have work done. A sensible rule, used on many surveys, is that visible movement, noticeable sagging, crumbling bearing ends, or an active leak anywhere near structural timber should move the issue into the “prompt assessment” category. That does not mean the building is about to fail, but it does mean you should stop planning cosmetic work and prioritise understanding the cause.

Before anyone starts opening things up, it helps to create a simple record of what you are seeing. Note which rooms are affected, whether it worsens after rain or showers, and how long the symptoms have been there. A short set of notes and photographs, taken while you resist the urge to paint or seal over marks, gives a surveyor a much better starting point than a freshly redecorated room where the story has been covered up.

When timber rot becomes a structural problem rather than a cosmetic nuisance

Timber rot becomes a structural problem when load‑bearing wood starts to lose stiffness or thickness, not just when you notice staining. The early signs that matter most are bouncing or dipping floors, a ridge or step where joists bear into a wall, cracking around door or window heads, or a roof line that no longer looks straight when you stand back and sight along it.

At that stage, the key question is whether the timber is still doing its job safely or whether it has already lost too much capacity. A probe that sinks easily into previously firm wood at a bearing point is one warning sign; another is a joist that deflects more than its neighbours when you walk across it. In roofs, rafters that feel spongy near their feet, or wall plates that crumble when gently tested, tell you the problem has moved beyond surface damage.

Not every defect you see is decay. Loose boards, historic movement in old houses, or minor shrinkage cracks can mimic rot. That is why a competent survey will always combine what you can feel and see with what is happening in the timber’s moisture content and in the surrounding masonry or voids. The aim is a calm, evidence‑based judgement rather than assuming the worst from a single symptom.

What you should and should not do before anyone starts work

The most helpful thing you can do is prevent further wetting without trapping moisture that is already inside the structure. Stopping a leak, clearing overflowing gutters, putting a tray under a known drip, or improving basic ventilation in a steamy bathroom are all low‑risk first moves. They reduce the chances of the situation worsening before a proper survey can be carried out.

What you should avoid is anything that seals damp materials in or disturbs potentially contaminated dust and spores unnecessarily, as that can complicate a damp diagnosis from a competent surveyor. Painting over stained skirtings, tanking over damp walls, or laying new impermeable floor finishes over a suspect subfloor can all make diagnosis harder and increase the risk of decay moving quietly out of sight. Heavy DIY probing, aggressive scraping or ad‑hoc opening of ceilings and floors can spread debris and cause damage in the wrong places.

If you are unsure where the line is between sensible first aid and over‑enthusiastic intervention, pause at the point where your actions might either hide the evidence or create more mess than understanding. That is usually the right moment to bring in someone whose day job is reading these patterns so you do not have to guess.

Early warning signs before joists, wall plates or rafters become a big job

Early timber rot often announces itself through subtle changes in how your home feels rather than dramatic failures, so you are looking for small, repeated clues. In many lived‑in houses, the first hints are a musty smell that lingers near skirtings or in a subfloor void, a patch of paint that keeps blistering, a floorboard that has started to feel springy, or a darker band at the base of a wall after wet weather. A helpful pattern to watch out for is the combination of smell, staining and softness in the same area: a single round mark on paintwork can be historic, but when you also notice a persistent earthy or mushroom‑like odour and timber in that zone yields under firm thumb pressure or a gentle screwdriver probe, the odds that active decay is present go up sharply. You are not trying to diagnose the fungus at this stage; you are simply deciding that the area deserves proper investigation.

If you only have the energy for a short inspection, start where water is most likely to get in or sit. That means checking around roof junctions and chimneys from ground level, looking at gutters and downpipes for overflows or staining, noticing any damp corners in bathrooms and kitchens, and being aware of cold, musty air coming up through gaps in suspended timber floors. Following the imagined path of water and gravity from roof to ground is far more productive than staring at a random damp patch in the middle of a wall.

A helpful pattern to watch out for is the combination of smell, staining and softness in the same area. A single round mark on paintwork can be historic. When you also notice a persistent earthy or mushroom‑like odour, and timber in that zone yields under firm thumb pressure or a gentle screwdriver probe, the odds that active decay is present go up sharply. You are not trying to diagnose the fungus at this stage; you are simply trying to decide that the area deserves proper investigation.

How to check safely without making the situation worse

You can pick up a surprising amount of information with a torch, your fingertips and a cautious mindset. Standing back from a wall or ceiling and looking along it at a shallow angle can reveal subtle bulges, ripples or distortion that are hard to see close up. Carefully pressing along skirting boards, window boards and exposed joists, without gouging or levering, tells you whether the timber still feels firm under the surface.

It is sensible to assume that disturbing decayed material, mould or accumulated dust can release particles you would rather not breathe. If you are lifting a hatch into a musty roof space or peering into a subfloor, basic protection such as a decent disposable respirator and eye protection is a good idea. What you should avoid is heavy scraping, drilling or sawing in suspect areas before you know what you are dealing with, because that can spread contamination and damage finishes that did not need to be disturbed yet.

Moisture metres can be useful screening tools when used carefully, particularly on timber. They are much less reliable as a standalone test on masonry, where salts, surface condensation and material type can all produce misleading readings. If you have a metre, treat any high reading as a clue that something is worth investigating rather than proof of a particular type of damp. A professional survey will always pair metre readings with patterns, construction details and other observations.

Spotting the difference between historic and active problems

One of the hardest things to judge as a homeowner or buyer is whether a damp‑looking mark is historical or still active. You can make a rough distinction by paying attention to timing and change. A tide mark that has been stable for years, with no smell and no softness in nearby timber, is less worrying than one that seems to reappear or spread after every spell of heavy rain.

You could, for example, notice that a patch behind a sofa stays the same through winter and summer, while a patch near a chimney breast darkens whenever there is wind‑driven rain from a particular direction. In a bathroom, a ceiling stain that gradually fades as you improve extraction and heating tells a different story to one that grows despite your efforts. By noting these patterns over a few weeks, you give whoever inspects the property much better clues about which mechanism is likely to be at work.

In all of this, the aim is not to turn you into a surveyor but to help you decide when to move from “keep an eye on it” to “get someone in”. When early signs are spotted and interpreted sensibly, repairs are more likely to stay local and manageable rather than expanding into a major structural job.

Wet rot vs dry rot: identification choices that change cost, scope and containment

The distinction between wet rot and dry rot matters because it changes how you think about spread, urgency and the amount of opening‑up needed. In practical surveys, wet rot usually stays close to areas where timber is persistently damp, such as a leak point or a wet masonry contact, while dry rot is treated more cautiously because it can extend through voids and move across or behind masonry in search of new timber. In everyday terms, if decay is genuinely confined to a clearly understood local wetting source that you can remove, the survey and repair strategy can focus tightly on that zone. If signs suggest dry rot with possible hidden strands running beyond the obvious damage, the immediate priority is to understand potential spread paths and stop the conditions that let it flourish. That does not mean every case is disastrous; it does mean the survey needs enough scope to avoid wishful thinking. From your point of view as an owner or manager, the first questions are simple: is there visible fungal growth such as white or grey sheets, strands or pancake‑like bodies; are there areas where timber shows a distinctive pattern of cracking and cuboidal blocks, particularly when combined with a fine reddish dust nearby; and are there patches where timber feels dry yet brittle, snapping across the grain rather than compressing like wet rot‑affected wood? These features, especially in combination, are the cues that push a case into the “treat as possible dry rot until proven otherwise” category.

Why dry rot is managed as a higher‑stakes problem

Dry rot is treated as higher stakes not because the name is dramatic, but because its biology and behaviour mean it can go further behind finishes than a simple wet rot outbreak. In the right humidity and temperature range it can colonise concealed spaces, feeding on timber that does not look directly waterlogged. That is why professional guidance emphasises understanding how far the conditions that support growth extend, not just how far obvious damage runs.

If you suspect dry rot, the sensible mindset is containment and understanding rather than hurried demolition. That usually involves a careful survey to map the edges of visible and accessible growth, identify likely moisture sources and assess which voids or junctions need targeted opening‑up. Heavy, unplanned strip‑out can spread contaminated debris through the building and make it harder to trace original moisture pathways, so calmly defining a plan matters.

Wet rot, by contrast, is usually more straightforward. It typically affects timber that is repeatedly or continuously damp, such as the ends of joists sitting in saturated masonry, sills exposed to constant splashback, or sections below a slow plumbing leak. Once the moisture source is removed and the area is allowed to dry, decay will not continue or spread in the same way, although the damaged timber still needs repair or replacement where strength has been lost.

How much can you trust pictures and quick opinions?

Photographs can be useful records, but they do not always capture texture, smell and context, all of which help distinguish wet rot from dry rot and from other problems such as insect damage. One contractor might glance at a dark patch and declare “dry rot” while another calls it “just wet rot”; both may be guessing. Where the consequences of being wrong are serious – for example, in structural members, large spans, or multi‑occupancy buildings – it is worth treating identification as something that should be justified, not assumed.

Confirmation in those cases may involve a combination of moisture measurements, inspection of concealed areas, and in some instances sampling for laboratory identification when there is doubt. That level of investigation is not necessary for every patch of damaged skirting, but it is appropriate when an entire floor, roof or stair flight could be affected. The outcome you want is simple: clear enough evidence about type and extent that you can choose proportionate repairs.

In all cases, remember that chemicals are tools, not solutions in their own right. They can help control biological activity where timber is still sound and conditions can be made unfavourable to regrowth, but they do not remove a leak, unblock a gutter, lower a bridging ground level or improve ventilation. Any plan that leads with treatment rather than moisture management is unlikely to deliver a durable result.

Calm, methodical surveys usually cost less than rushed, guess‑driven repairs.

The damp mechanisms that keep timber wet (and how a survey narrows the real one)

Timber rot always has a backstory about how moisture is entering, moving and being held in the building, and experienced surveyors focus on that story first. The main families of causes are rainwater ingress, plumbing and drainage leaks, condensation and indoor humidity, and ground‑related moisture such as rising damp or bridged damp‑proof courses.

Rainwater problems show up where the external envelope is repeatedly overwhelmed or defective: slipped or cracked tiles, failed flashings, overflowing or undersized gutters, blocked downpipes, hairline cracks in render, or missing pointing. Timber near those junctions, such as rafter feet, wall plates and window heads, is vulnerable when damp masonry stays in contact for long periods after each fall of rain. Plumbing leaks, by contrast, often cause localised staining or decay around bathrooms, kitchens, heating pipes and tanks, sometimes hidden behind finishes.

Condensation‑driven issues come from warm, moist air meeting cold surfaces. That might be on the inside face of a solid wall, on the underside of a cold roof deck, or within a poorly ventilated void. In those situations the route to timber can be indirect: moisture condenses on masonry or cold bridging elements and gradually wets adjacent wood. Subfloor problems blend several mechanisms: restricted cross‑ventilation, high external ground levels, or unsealed earth can keep the void humid and the underside of joists damp for much of the year.

How a survey distinguishes one mechanism from another

You can think of a timber rot survey as a structured way of asking when a surface is wet, how wet it is, and in what pattern it changes. Rain‑related damp tends to worsen after wet and windy weather from specific directions and to be strongest high on elevations, around chimneys, parapets and exposed junctions. Plumbing leaks may cause persistent localised damp regardless of weather, often close to services. Condensation is linked to patterns of occupancy and ventilation; it may be worse in winter and in rooms with a lot of moisture generation and poor air change. Surveyors combine those timing and location clues with moisture measurements taken across and sometimes through materials. In timber, moisture content readings can be interpreted more directly. In masonry, readings are treated more cautiously, as one indicator alongside visual inspection and salt patterns. A vertical profile that is wetter at the base of a wall and associated with certain salt deposits might support a rising damp hypothesis; a patch that is wetter around a shower tray points more towards a plumbing leak.

The outcome you are aiming for is a clear, written explanation of which mechanism or combination of mechanisms is most likely, and what evidence supports that view. That is what allows you and your contractors to focus effort and budget on interventions that will actually lower moisture exposure rather than chasing symptoms.

Why one “high reading” is not enough

Hand‑held metres are a useful part of the toolkit, but they can also be misleading when used in isolation. Surface condensation, soluble salts, different material densities and temperature variations can all cause variations in readings that do not directly reflect how much water is present in the structure or why it is there. A careful survey treats numbers as part of a pattern, not as a verdict.

As a homeowner, you may hear phrases such as “the wall is off the scale” delivered with great certainty. The more helpful question is: in relation to what? A single elevated reading on one patch tells you very little unless it is compared with nearby areas, different heights, different materials and known dry references. The real value is in mapping change and difference, not in staring at one number.

Recognising that nuance turns damp diagnosis from a guessing game into a reasoned process. It also gives you a basis for asking better questions and for understanding why a responsible surveyor may recommend further checks rather than jumping straight to a favourite treatment.

What a proper timber rot and damp survey looks like (so you do not pay for the wrong fix)

A proper timber rot and damp survey is a diagnostic exercise, not a sales visit in disguise, and that distinction is clear in the way experienced surveyors work. Its job is to answer with evidence what type of decay is present, what moisture mechanisms are at work, how far the problem extends, what impact that has on structure and finishes, and what sequence of actions will reduce risk in a durable way. Everything else – tools, measurements, access, photographs – is there to support those answers.

The visit normally begins with a discussion about your observations, recent works, patterns over time and any constraints such as tenanted rooms or sensitive finishes. The surveyor then inspects the exterior, looking at roofs, gutters, downpipes, flashings, ground levels and obvious defects. Inside, they will examine accessible timbers such as skirtings, floorboards, joists in accessible areas, roof members and visible structural elements, as well as damp‑prone corners in bathrooms, kitchens and basements.

Throughout, the emphasis is on gathering repeatable information. That includes measured moisture readings in timber, comparative readings at different points on walls and floors, notes on ventilation and heating patterns, and photographic documentation of findings. In some cases, tools such as borescopes are used to look into voids and concealed pockets with small, targeted access points rather than large‑scale destructive opening. In higher‑risk situations, semi‑destructive tests such as drill‑resistance probing may be proposed, particularly where visually sound timber could be masking internal loss of section.

What you should expect to see in the written report

The written report is where all of that information is turned into something you, your builder, your lender or your insurer can actually act on. At a minimum, you should expect a clear description of what was inspected and what was not, a summary of visible decay and damp‑related defects, an explanation of the probable moisture mechanisms, and a reasoned discussion of the likely extent and risk level.

In a well‑structured report, you will usually see:

• A clear summary of key findings and risk level.
• A list of inspected areas and any access limitations.
• Moisture readings or observations presented in a simple, readable format.
• Photographs linked to locations and comments.
• Recommendations arranged in a logical, step‑by‑step order.

That structure makes it much easier for you and any contractor to see what needs to happen first, what can wait, and where uncertainty remains.

Equally important are the declared limitations. You should see a section that explains where access was restricted, what assumptions had to be made, and what could not be ruled out without further opening‑up or specialist tests. That honesty protects you and the surveyor, because it makes clear where residual risk lies rather than pretending that every hidden corner has been seen.

How this helps your contractor and reduces arguments later

From a contractor’s point of view, a concise, well‑structured damp and timber report is a set of instructions and constraints rather than a vague warning. It tells them which areas are confirmed as decayed, which are at risk, which mechanisms need to be addressed first, and where further checks are required before work proceeds. That allows them to price the job against a defined scope instead of building large contingencies into every quote.

For you, that same clarity reduces the chances of disputes. When everyone can see that certain assumptions were made because a void was inaccessible, or that particular readings justified opening a floor in a limited zone, it is much easier to explain why extra work was or was not necessary. It also means you are less likely to be bounced between differing opinions, because the report sets out the reasoning that underpins the recommendations.

Treat damp first, then repair timber: the sequence that stops you rebuilding twice

The most common reason rot comes back after a repair is that work is carried out before moisture pathways are properly understood and controlled. In practice, the sequence that experienced surveyors and contractors rely on is simple: establish the cause, stop or greatly reduce wetting, manage drying and ventilation, verify that conditions have improved and stabilised, then repair or replace damaged timber and finally reinstate finishes that will not create new moisture traps.

At a high level, that often means:

1. Identify the moisture source and how it affects timber.
2. Stop or greatly reduce new water getting in.
3. Support drying with sensible heating and ventilation.
4. Check that moisture levels are trending down and stable.
5. Repair, strengthen or replace affected timber where needed.
6. Reinstate finishes that will not trap moisture again.

Thinking of your project in that order helps you avoid dismantling and rebuilding the same area twice.

In practice, that means roof and rainwater defects, plumbing leaks, high ground levels or blocked subfloor vents must be dealt with first. Only when you know that water is no longer arriving faster than it can leave does it make sense to invest in repairs to joists, rafters, wall plates or other timbers. In parallel, you may need to improve ventilation or adjust heating patterns to reduce condensation risk, particularly in older or more airtight homes.

Drying is not instantaneous. Depending on the severity of the damp and the construction, it can take weeks or months for moisture levels in masonry and timber to fall to safer ranges. During that period, targeted use of dehumidification and careful heating can help, but the key is not to rush into closing voids or covering previously damp areas. Periodic re‑checking of timber moisture content and surface conditions is more informative than a single reading on the day you are eager to redecorate.

Deciding when repair, strengthening or replacement is appropriate

Once moisture is under control and the structure is on a drying trend, you can make better decisions about the timber itself. Where sound wood remains and the decay is superficial, local repairs and preservative treatments may be enough. Where only the ends of structural members are affected, techniques such as splicing, plating or using brackets can restore capacity without wholesale replacement, provided design and execution are competent. Complete replacement is generally reserved for timbers that have lost significant section or bearing, where decay has run deeply, or where it is not realistic to keep conditions within safe moisture ranges around that element in future. In such cases, careful detailing of the new work – including how it bears, how it is ventilated, and how it is separated from damp masonry – is as important as the choice of timber itself.

Throughout, there will be points where it is prudent to involve a structural engineer, particularly when supports, major beams, trussed roofs or complex load paths are involved. Temporary propping and phased work should be planned rather than improvised once rotten timber is removed. A good sequence anticipates those needs and builds them into the programme.

Why finishes and detailing are part of the moisture strategy

Reinstating plaster, floor coverings and decorations is not just a cosmetic exercise at the end of the job. The choice between vapour‑open and vapour‑tight materials, the way junctions are detailed, and whether ventilation routes are preserved or accidentally blocked all have a direct bearing on how easily the building can handle the small amounts of moisture it will inevitably encounter.

In older solid‑wall or timber‑rich buildings, laying impermeable finishes directly over previously damp substrates, or sealing previously breathable walls with non‑permeable coatings, can push moisture into the remaining timber and restart decay. In newer or heavily insulated buildings, missing vapour control layers or poor detailing around penetrations can cause localised condensation. Treating finishes as part of the moisture‑control design, not an afterthought, is a key part of a one‑time, robust repair.

Costs, timeframes, guarantees and choosing the right surveyor

When you are already worrying about the state of your floors or roof, uncertainty about cost can be just as stressful as the defect itself, and that feeling is common across many projects. A timber rot and damp survey is usually a modest, fixed cost compared with the potential price of structural repairs, with fees varying according to property size, how much of the building needs to be covered, how difficult access is, how much time is needed for external defect checks, and how quickly you need a written report. The greater cost differences usually appear later, between acting early and waiting until decay is advanced: catching and addressing a small area of wet rot linked to a gutter defect may involve targeted external work and localised timber repair, whereas leaving the same problem until joist ends or rafter feet have been severely compromised, or until dry rot has spread further behind finishes, can turn a manageable trade job into a project involving temporary works, extensive opening-up and full reinstatement of finishes. You will also encounter different commercial models, including free “surveys” offered by treatment companies whose primary purpose may be to sell particular solutions rather than provide an independent diagnosis, so paying for a clear, method-led investigation often pays for itself by avoiding unnecessary or misdirected work, especially when lenders and insurers later review the paperwork.

For example, a homeowner who spots a springy board by a back door and investigates promptly might face localised joist end repairs and a short period of disruption. Another who waits until the whole room sags, doors stick and ceilings crack may discover that several rooms need to be opened, propped and rebuilt, with much greater impact on budget and day‑to‑day life.

You will also encounter different commercial models, including free “surveys” offered by treatment companies. These can have their place, but it is important to understand that their primary purpose may be to sell particular solutions rather than provide an independent diagnosis. Paying for a clear, method‑led investigation can feel counter‑intuitive at first, yet it often pays for itself by avoiding unnecessary or misdirected work, especially when lenders and insurers later review the paperwork.

Understanding guarantees and what they do and do not cover

Guarantees can be reassuring but they are not magic. Most cover specific treatments or systems in defined areas, for a set period, subject to conditions about maintenance and use, and they rarely guarantee that a building will never suffer from damp or decay again; rather, they promise to address failures of the particular scope of work if you and future owners meet the stated conditions. When you are comparing proposals, it makes sense to read the guarantee wording alongside the diagnosis and specification and to ask what assumptions the guarantee relies on about moisture sources, ventilation and future alterations, because a narrower but accurate guarantee, tied to a well‑reasoned cause and repair strategy, is worth more than a broad‑sounding promise that quietly excludes the most likely failure modes. For lenders, insurers and, in some cases, local authorities, the quality of the underlying assessment is at least as important as the presence of a guarantee, so recommendations that align with common project outcomes and typical lender or insurer expectations are more likely to support smooth approvals than vague statements or one‑line “certificates”.

Choosing someone to trust with the diagnosis

Selecting a surveyor or specialist is partly about qualifications and partly about behaviour. Relevant training in damp and timber investigation, membership of recognised professional or trade bodies, and appropriate insurance are all positive indicators. So are clear descriptions of method, equipment used and the types of buildings they regularly inspect, especially if you own a period or listed property.

Helpful signs when you are deciding who to instruct include:

• They explain how they separate diagnosis from selling treatments.
• They ask about symptom timing, previous works and how you use the building.
• They are open about where access will be limited and what that means.
• They describe when staged investigations or further checks might be sensible.

Taken together, those behaviours suggest someone who is thinking in mechanisms and risk, not just in products.

Equally revealing are the questions they ask you at the outset. Someone who wants to know about timing of symptoms, previous works, occupancy patterns and your priorities is more likely to be thinking about mechanisms and risk than simply about selling a single treatment. Openness about limitations, the possibility of staged investigations and the distinction between diagnosis and contracting is another good sign.

If you are in Sussex or the surrounding area, it is worth working with a team that is familiar with local building types, coastal exposure and planning considerations. That local experience helps them interpret what they see in the context of similar properties rather than treating your home as a one‑off puzzle.

Book your consultation with Sussex Damp Experts today

Sussex Damp Experts help you turn worrying signs of timber rot into a clear, evidence-based plan that deals with the damp first and then the structure, so if you want to stop guessing, avoid repeated repairs and feel confident about what really needs doing, a focused timber rot and damp consultation is the most direct way to get there. Before you book, it helps to decide whether you need a focused look at a single issue or a wider survey of the whole property – if you have one suspicious corner or a specific leak history, a targeted visit with appropriate external defect checks may be enough, whereas if you are buying or selling, planning major refurbishment, managing a rental portfolio or dealing with repeated complaints, a more comprehensive damp and timber survey will be a better foundation for decisions – and thinking about access to lofts, subfloors and key rooms in advance will make the visit more productive. During your consultation, Sussex Damp Experts work with you and, where needed, your builder, engineer or managing agent to turn findings into a practical sequence of actions so that you leave with a clear explanation of moisture mechanisms and decay type, a sensible order of works agreed before anything is closed up, and a written report you can share with contractors, lenders or insurers as needed. To move things forward, you only need to collect a few photographs of the worst areas, jot down when problems tend to appear or worsen, and book a survey slot that fits around your use of the property, then contact Sussex Damp Experts to arrange your timber rot and damp survey and take control of the problem before it grows into a much larger structural repair.

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