If your Ashford home has damp walls, peeling paint, or a musty smell that won’t go away, it could be rising damp. Left unchecked, it can damage plaster, skirting boards, and even the structure of your property. Kent’s older housing stock, especially the Victorian and Edwardian terraces common around Ashford, is particularly prone to this problem once the original damp proof course breaks down. Knowing how to spot rising damp early, understanding why it happens, and keeping up with basic maintenance can all help you catch it before the damage spreads. This guide walks you through what to look for and how to put things right.

What Are The Causes Of Rising Damp?

Rising damp occurs when a property’s damp proof course (DPC), the barrier built into the wall near ground level, stops working properly
The DPC can fail because it’s damaged, too old, or was never fitted in the first place
Once the DPC fails, moisture finds a way through and slowly moves up the brickwork, a process called capillary action, similar to water moving through a sponge
Older homes in Ashford are more prone to this issue, simply because their DPC has had more time to wear down
Once moisture reaches the plaster and paintwork, the visible signs of rising damp start to appear.

Common Signs Of Rising Damp In Ashford Homes

Rising damp usually shows up in ground-floor walls, rarely climbing higher than a metre. Here’s what to check for around your home.

Tide Marks on Walls

A horizontal band of discolouration, often yellow or brown, near the base of a wall is one of the clearest signs. It forms as moisture carries salts up from the ground through the brickwork, leaving a stained line where the water eventually stops rising. The mark usually sits below waist height and can look patchy rather than perfectly straight. In some cases you might notice more than one band, if the damp has risen and dried at different levels over time.

Peeling Paint or Wallpaper

Moisture trapped behind paint or wallpaper weakens the bond with the underlying wall. You’ll notice bubbling, flaking, or paper lifting away at the edges, usually starting near skirting level before spreading upwards. In some cases, the paint may feel soft or slightly sticky to the touch. This is often one of the first visible signs homeowners notice, especially on older painted walls.

Damp or Musty Smell

A persistent, earthy smell in a room, even when there’s no visible mould, often indicates moisture within the wall structure. This smell tends to be stronger in enclosed spaces like cupboards, alcoves, or behind furniture pushed up against an affected wall. It can also become more noticeable after rain or in damp weather. If you can’t get rid of the smell even after airing out the room, it’s a good reason to look into it further.

White Powder (Salt Deposits)

A crusty white or powdery residue on brickwork or plaster, known as efflorescence, is caused by soluble salts left behind as damp water evaporates from the wall surface. These salts are drawn up from the ground along with the moisture, and they can keep reappearing even after a wall has been wiped clean. Efflorescence is often one of the earliest visible signs, appearing before any real damage to the plaster. It can also form on skirting boards or nearby brickwork, not just the wall itself.

Rotten Or Damaged Skirting Boards

Timber skirting boards sit close to the ground, so they readily absorb rising moisture and are often among the first things to show damage. Look for wood that feels soft or crumbles when pressed, along with discolouration or a slightly swollen appearance. In more advanced cases, the paint or varnish may also start to lift away from the timber. You may also notice a slight give when you press the wood gently with your finger.

Cold Or Damp Walls

Walls affected by rising damp often feel noticeably colder and slightly damp to the touch compared to the rest of the room. This happens because the moisture within the wall draws heat away, making it harder for the room to stay warm even with the heating on. If you press your hand against the wall and it feels clammy rather than dry, it’s worth investigating further. This coldness is sometimes mistaken for poor insulation, so it’s easy to overlook as a sign of damp.

How To Fix Rising Damp

Effective rising damp treatment means addressing the cause, not just the symptoms, and following recognised industry standards.

Confirm The Cause

Not every damp patch on a wall is rising damp. Sometimes it’s condensation, and sometimes it’s water getting in from outside, known as penetrating damp. These look similar but are often misdiagnosed, so getting the right diagnosis matters before choosing a fix. That’s why the first step is always a proper survey.

A specialist uses a moisture meter to test the wall and check how high the damp goes.

Ideally, this survey is carried out by a RICS-qualified surveyor, giving you a clear, honest answer about what’s really causing the problem before any work begins.

Repair Or Install A Damp Proof Course (DPC)

If the survey confirms rising damp, the next step is fixing the damp proof course. This might mean repairing the existing DPC or installing a brand-new one if it failed completely or was never fitted.

Most modern DPCs use a chemical damp-proofing cream, injected into the brickwork to create a fresh, water-resistant barrier. This work should follow BS 6576, the British Standard that sets out how chemical damp proof courses should be installed. If you’d like to understand the process in more detail, this step-by-step guide walks through how the treatment typically works. Getting this step right matters because it’s what actually prevents moisture from rising through the wall in the future.

Remove Damaged Plaster

Once the DPC is sorted, the old plaster on the affected wall usually needs to come off. Damp plaster holds onto salts from the ground, even after the wall itself has started to dry.

If this plaster is left in place, those salts can keep drawing in moisture from the air, making the wall look damp again even though the original problem has been fixed.

Removing it properly gives the wall a clean, dry surface to work with before anything new goes back on.

Apply Damp-Resistant Materials

After the old plaster is removed, a specialist salt-resistant render or plaster is applied to the wall. This type of material is designed to cope with any small amounts of moisture or salt left behind.

It acts as a protective layer, preventing leftover salts from reaching the surface and causing the same staining or peeling problems again.

Using the right material here makes a real difference to how long the repair lasts.

Allow The Wall To Dry Properly

Once the new plaster is on, the wall needs time to dry out fully before anything else is done to it. This isn’t a step that can be rushed.

Depending on how bad the damp was, drying can take anywhere from a few weeks to a couple of months. Thicker walls and more severe damp usually take longer.

Painting or wallpapering too early can trap moisture inside the wall, risking the same problems recurring.

Redecorate After Treatment

Once the wall is completely dry, you can repaint or repaper it. It’s best to use breathable paints and materials, as these let any remaining moisture escape slowly rather than trapping it inside.

This final step returns the room to normal and protects all the work already done.

It’s also worth checking whether your guttering and roofline repairs are in good order, since overflowing or damaged guttering is a common hidden cause of damp walls, and fixing it helps prevent the problem from coming back.

Important Tips You Shouldn’t Ignore

In many older Ashford homes, a raised flower bed or driveway laid too close to the wall is the real culprit, even after a new DPC has been fitted.
Air bricks get blocked more often than people expect, sometimes just from leaves or a coat of paint, so it’s worth checking they’re still clear.
A slow drip from a downpipe can go unnoticed for months before it starts showing up as damp on the inside wall.
Rendering or paving laid right up against a wall is one of the most common ways a good DPC ends up bridged without anyone realising.
Early signs are easy to miss behind furniture or inside cupboards, so it’s worth checking those spots occasionally too.
A quick specialist check every few years often catches problems long before they show up inside the property.

When Should You Call A Damp Specialist?

If you notice tide marks, persistent musty smells, or crumbling skirting boards, it’s worth booking a professional survey with a damp proof specialist in Ashford. DIY damp proofing rarely lasts, as it doesn’t always address the underlying cause. When choosing the best roofing company in Ashford, look for one with recognised industry credentials, such as PCA accreditation, so you can be confident they’ll confirm whether it’s genuinely rising damp and recommend the right fix for your property.

Conclusion

Rising damp is a common issue in older Ashford properties, but it’s manageable as part of regular property maintenance in Ashford when caught early. Watch for the signs, understand the causes, and address the damp proof course before the damage spreads. If you’re unsure, a professional survey removes the guesswork. Hibbs Roofing & Building Ltd offer trusted damp proofing services in Ashford and can assess your property and advise on the right rising damp treatment.

FAQs

Can rising damp go away on its own?

No, rising damp won’t resolve itself. It needs a working damp-proof course to prevent moisture from rising through the wall, so the underlying cause has to be treated directly.

Is rising damp covered by home insurance?

No, most standard home insurance policies don’t cover rising damp, as it’s considered a maintenance issue rather than sudden accidental damage. Check your specific policy for details.

Can I treat rising damp myself?

Yes, minor cases can sometimes be treated with DIY damp-proofing products, but the results are often short-lived without properly addressing the root cause.

How long does it take to fix rising damp?

Yes, a full fix usually takes longer than people expect. The treatment work itself might only take a day or two, but the wall needs time afterwards before it’s fully sorted, so it’s worth planning for a few weeks rather than a quick overnight fix.

Does rising damp affect property value?

Yes, untreated rising damp can affect a property’s value and may raise concerns during a RICS survey when selling.

Is rising damp common in Ashford homes?

Yes, it’s a frequent issue reported by homeowners across the town, mainly in properties built before modern damp-proofing methods became standard practice. Local surveyors see it regularly during routine property inspections.

How To Spot Rising Damp In Ashford Properties And How to Fix It