
Tide marks
A discoloured line rising from the skirting board.

Damp Pro and Co · Ruislip, West London & South Bucks
Find the cause. Treat the wall. Get your home back. Free damp surveys and a 20-year guarantee certificate on completed damp proof course work.
Checkatrade 9.82 / 10 PCA trained
The difference treatment makes
Damp damage can leave rooms stained, flaky and difficult to live in. Our first step is to understand why the wall is wet; only then do we recommend treatment and the right finish.
Slide across these illustrative walls to see the kind of finish you can look forward to after the cause has been dealt with.
See real project photos

Illustrative images, not photographs of the same property or a Damp Pro and Co project.
Look closer
Different symptoms have different causes. A survey is the best way to tell what is happening behind the surface.

A discoloured line rising from the skirting board.

Paint bubbling or lifting where moisture is trapped.

Powdery, damaged plaster and salt deposits near the floor.

Dark spotting may point to condensation or another damp cause.
How it works
Clear answers, careful work and a guarantee that applies to completed damp proof course treatment.

Call any time or request a free survey online.

We inspect the property and take moisture readings before recommending a solution.

Where needed, we drill and inject a BBA approved damp proofing system.

We make good with appropriate plaster and issue a 20-year certificate for completed DPC work.
From drilling and injection to replastering, the details matter.

In their words
“Seth and the team at Damp Pro & Co carried out damp repairs throughout every room of our home, and we are extremely pleased with the quality of their work.”
“Seth , Steve and Thomas did a fantastic job damp proofing our living room today , they were friendly, professional hard working and extremely tidy would highly recommend”
A 9.82 rating from 389 reviews. Read customers’ own feedback on the independent profile.
Once damp gets into a building it keeps spreading – damaging plaster, decoration and the value of your home. It cannot be hidden from a surveyor, and ignoring it only makes the repair bigger.
As a family-run business with over 30 years' experience, we give homeowners and landlords honest advice and a treatment tailored to the property.
Our specialism
Tide marks, crumbling plaster and lifting skirting boards are classic signs of rising damp. We confirm the cause with a free survey, install a new damp proof course using a BBA approved system and replaster with salt-resistant materials. Read more about our rising damp treatment.
Looking for a damp specialist near you? Choose a damp proofing company that checks the source before quoting. Our damp proofing services cover moisture in walls, rainwater entry and indoor humidity, with a recommendation suited to the home rather than one treatment for every mark.
For local information, visit our Ealing damp specialist page, explore all damp proofing services, or request help using the survey form.
Rising damp treatmentDiagnosis and lasting treatment of ground moisture rising through walls, backed by a 20-year guarantee.
New chemical damp proof course injected into failed or bridged walls, with specialist replastering.
Tracing and stopping rainwater getting in through walls, pointing, gutters and openings.
Ventilation and humidity solutions that stop streaming windows, black spotting and damp air.
Safe removal of black mould and treatment of the cause, so it does not come back.
Identification, survey and treatment options for insect-affected timber. Ask about service availability.
West London to High Wycombe, around 12 miles from our Ruislip base.
We cover West London out to High Wycombe, about 12 miles from our Ruislip base, including Harrow, Ealing and Wembley. See all areas we cover to find your local page.
Yes. Our damp survey is free and there is no obligation.
On completion of damp proof course treatment you receive a 20-year guarantee certificate. Guarantees for other work depend on the system specified in your quotation.
Our technicians are PCA trained and Safeguard Ltd trained, and we use a BBA approved damp proofing system.
We are open 24 hours. Call 07803 253337 or 0800 593 0300.
Yes. Identify the moisture source first, then address the relevant leak, rainwater defect, rising damp or condensation. Damaged plaster and decoration may need repair after the source is controlled.
Some work, including suitable DPC injection and necessary plaster repairs, can be carried out internally. Access and wall construction determine the method; an inside finish alone cannot repair water entering elsewhere.
Often. Outside work may include suitable DPC installation or repairs to the rainwater route. The survey considers access, materials and ground levels before recommending the approach.
A treatment can disappoint if the wrong source was diagnosed, a moisture bridge remains or new water entry develops. Have renewed damp assessed and keep your treatment specification and guarantee paperwork available.
For business premises, read our commercial damp proofing information and ask Seth about service availability.
Open 24 hours. Over 30 years' experience. 20-year guarantee on completed DPC work.