
Tide marks
A discoloured line rising from the skirting board.

Damp Pro and Co · Ruislip, West London & South Bucks
Find the cause. Treat the problem. Get your home back.
Damp proofing specialists serving Ruislip, West London and South Bucks. Free damp survey and report with quotation if required, and a 20-year guarantee certificate on completion of damp treatments.
Checkatrade 9.82 / 10 PCA trained
*20-year guarantee certificate provided on completion of damp treatments.
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.


We inspect the problem before recommending treatment.

We'll explain what we've found and the treatment required.

Our team completes the agreed work.

20 year guarantee certificate provided on completion of damp treatments.
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.
We use a Safeguard BBA-approved damp proofing system that provides a more effective, modern alternative to traditional sand and cement remedial plastering systems.
Our approach is designed to address the different causes and effects of damp rather than simply covering the visible symptoms. Where required, this includes the installation of a new chemical DPC injection to protect against rising damp, together with appropriate remedial measures for areas affected by penetrating damp.
Following preparation of the affected walls, Permabreathable salt-inhibiting cream is applied directly to the exposed brickwork, treating and protecting the masonry before the new internal wall system is installed.
What makes the system particularly effective is the purpose-designed cavity created between the treated brickwork and the new finished board. Unlike traditional sand and cement systems, where remedial render is applied directly onto the masonry, our finished internal surface is physically separated from the original wall.
This combination of new DPC protection, Permabreathable treatment, salt protection and physical cavity separation provides a comprehensive approach to damp proofing, addressing the source of the problem while protecting the new internal finish.
Different properties can suffer from damp for different reasons, which is why we do not rely on a single treatment. Where rising damp is identified, a new chemical DPC is injected into the affected walls. Where penetrating damp or salt contamination is found, the Permabreathable salt-inhibiting treatment and cavity system protect the new internal finish.
Safeguard Europe is the manufacturer whose damp proofing products we use.
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.