Damp Proofing Specialists in Clapham SW4
A small damp patch can point to a much bigger issue behind the surface. Moisture may be coming from ground level, outside walls, poor ventilation, plumbing leaks, or below-ground water ingress, and the right treatment depends on finding the source first.
Kenwood provides damp proofing in Clapham for homeowners, landlords, buyers, sellers, and commercial property owners across SW4. If you’ve noticed damp patches on walls, peeling wallpaper, blown plaster, salt staining, decaying skirting boards, rusting fixings, musty smells, mould growth, or water ingress in a basement, our qualified surveyors will inspect the affected areas, identify the cause, and provide a clear written quotation before any work begins.
Whether the issue is rising damp, condensation, dry rot, wet rot, or a damp basement, Kenwood’s own trained workforce will carry out the right treatment.
Free Damp Survey in Clapham
Kenwood offers a free damp survey for properties in Clapham and across SW4. This gives you a clear understanding of what is happening, what needs to be done, and what the work is likely to cost.
During the survey, our team may use moisture meters, visual inspections, and checks of affected plaster, walls, floors, or timber. Where needed, we may also inspect below floor level to look for signs of damp, dry rot, or wet rot. You will receive a written report and quotation with no call-out charge and no obligation to proceed.
Rising Damp Treatment in Clapham
Rising damp occurs when moisture travels up through the walls from the ground. It is often linked to a failed, bridged, or missing damp-proof course.

Common signs of rising damp include salt staining, damaged plaster, damp patches near floor level, decaying skirting boards, and rusting fixings. These symptoms can sometimes be confused with condensation or penetrating damp, so a professional survey is important before treatment begins.
Where rising damp is confirmed, Kenwood may recommend a damp course injection and associated replastering. Our damp course injection treatments are backed by a genuine 20-year guarantee.
Condensation, Mould and Ventilation Issues
Not every damp problem is rising damp. In many flats, rental properties, and busy households, moisture can build up through everyday use, especially where ventilation is poor, leading to mould growth, staining, and musty smells.
Kenwood will assess whether mould is linked to condensation, poor airflow, or another moisture source before recommending treatment, ensuring the underlying cause is addressed rather than just the visible mould.
Basement Waterproofing in Clapham
Basements and lower-ground rooms are more vulnerable to water ingress because they sit partly or fully below ground level. If water is entering through walls, floors, or joints, standard surface repairs are unlikely to solve the issue.
Kenwood provides basement waterproofing in Clapham and SW4. Our team will assess the structure and level of water exposure before recommending the right solution.
Damp Proofing for Buyers, Sellers and Landlords
If a HomeBuyers report has flagged possible damp, or a tenant has reported mould or damp patches, Kenwood can arrange a survey and provide clear documentation. Our reports and guarantees are recognised by solicitors and mortgage lenders, helping buyers and sellers, landlords, and managing agents move forward with confidence.
Why Choose Kenwood for Damp Proofing in Clapham?
Kenwood has over 40 years of experience treating damp in London properties. We are a PCA-accredited contractor, and our own trained workforce carries out all work. Services in Clapham include free damp surveys, rising damp treatment, basement waterproofing, advice on condensation and mould, and treatment for dry rot and wet rot. Damp course injection treatments come with a 20-year guarantee.
Frequently Asked Questions About Damp Proofing in Clapham
How much does damp proofing cost in Clapham?
The cost depends on the type of damp, the affected area, and the treatment required. Kenwood provides a free damp survey and written quotation before any work begins. See our damp proofing cost guide for a general overview.
Do I need rising damp treatment or condensation control?
Rising damp and condensation can sometimes cause similar visible symptoms. Rising damp usually affects lower sections of walls, while condensation is often linked to poor ventilation and moisture build-up. A damp survey is the most reliable way to identify the cause.
Can Kenwood help if damp was found in a HomeBuyers report?
Yes. If a HomeBuyers report has flagged damp, Kenwood can carry out a free damp survey, identify the cause, and provide a written quotation for any required treatment.
Are Kenwood’s damp proofing treatments guaranteed?
Yes. Damp course injection treatments are backed by a genuine 20-year guarantee. As a PCA-accredited contractor, our reports and guarantees are recognised by solicitors and mortgage lenders.
Book a Free Damp Survey in Clapham
Contact Kenwood today on 0208 950 9070 to book a free damp survey in Clapham. Our team will inspect the problem, explain the cause, and provide a clear written quotation with no call-out charge and no obligation to proceed.
We also cover nearby areas including Battersea, Wandsworth, and Brixton. View all of our London damp proofing locations.




