Damp Proofing Greenford | Survey & Treatment | Advanced Damp
Damp specialists covering Greenford & west London

Damp Proofing Greenford

Greenford is a 1930s suburb, and its cavity-walled semis throw up very different damp problems to its older period homes and canal-side flats. We diagnose the real cause, penetrating damp, condensation or genuine rising damp, and put it right rather than guessing. Survey-led, with a written 10 year guarantee.

10 Year Guarantee 1930s Semis & Period Homes Survey-Led Diagnosis Local to West London CSSW & CSRT Trained

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Survey-led diagnosis with a clear, written report. No obligation.

Newton Waterproofing certified installer CHAS accredited contractor Constructionline registered

Damp in Greenford Homes

Greenford changed from a farming village into a west London suburb in the great speculative building boom of the 1920s and 1930s, and that history shapes its damp. Most of the housing here is interwar semi-detached, terraced, bungalows and maisonettes, with cavity walls. In that stock the problem is rarely classic rising damp. Far more often it is penetrating damp through bridged or failed cavities, leaking bays and tired render, or condensation and black mould once double glazing and draught proofing have cut down the ventilation these homes were built to rely on.

There is an older Greenford too, around Holy Cross Church and Oldfield Lane, with some solid brick period property that can suffer genuine rising and penetrating damp and needs a breathable approach. And there is the water: the River Brent and the Grand Union Canal run through the low-lying middle of the area, historically prone to flooding, so homes near them can have a high water table and ground damp.

Add the canal-side and ex-industrial sites now being converted to flats, where sealed, airtight construction brings condensation, and Greenford becomes a place where the symptom on the wall rarely tells you the cause. That is why we always start with a proper survey.

Damp proofing treatment to a wall by Advanced Damp

Damp Proofing Services in Greenford

Whatever the property and whatever the cause, we cover it, and we link each job to the right specialist treatment.

Penetrating Damp

Damp driven through walls, bays and failed render, the most common issue in Greenford's ageing 1930s cavity-walled semis.

Condensation & Mould

Black mould in sealed, under-ventilated semis and modern flats, cured with the right ventilation rather than a damp proof course.

Rising Damp

Genuine rising damp in the area's older solid brick period homes, treated with a new damp proof course where a survey confirms it.

Mould Removal

Safe removal of black mould, paired with fixing the underlying damp so it does not simply return.

Waterproofing

Structural waterproofing and tanking for cellars and ground floors near the Brent and the Grand Union Canal.

Damp Surveys

Independent, survey-led diagnosis with a clear written report, ideal for homebuyers and pre-purchase building surveys.

Signs of Damp in Greenford Homes

If you are seeing any of these, it is worth getting the cause checked before it spreads:

Tide marks or staining low down on walls
Flaking plaster and bubbling, peeling paint
Damp patches on bay windows and chimney breasts
Black mould in corners and around windows
Streaming windows in the colder months
A persistent damp, musty smell
Damp patches that worsen after heavy rain
Rotten or springy floor and skirting timber

How We Work, Survey to Completion

1

Book a survey

We arrange a convenient visit to your property, anywhere across Greenford and west London.

2

Diagnose the real cause

We use moisture readings and, where useful, thermal imaging to confirm whether it is penetrating damp, condensation or rising damp, not guesswork.

3

Clear written report

You get a plain-English report setting out the cause, the recommended work and the costs, with no pressure.

4

Carry out the work

Our technicians complete the treatment tidily and with minimal disruption, leaving the property clean.

5

Written guarantee

Installed work is backed by a written 10 year guarantee, transferable on sale.

Greenford Broadway in west London Damp proofing work to a wall by Advanced Damp

What Our Customers Say

Genuine reviews from Advanced Damp customers.

★★★★★

"I scheduled a pre-purchase damp survey with Advanced Damp on the advice of a Level 3 building survey. The quality of the survey, performed by Lionel, was excellent and the report was very detailed with photos throughout. The customer service was also very attentive."

Juliana Kwan
Google review
★★★★★

"We had damp proofing work carried out recently and I'm really pleased with the service. The team were friendly, professional and explained everything clearly before starting. The work was done efficiently and the property was left clean and tidy afterwards."

Charlotte
Trustpilot review
★★★★★

"Great communication throughout the process and Lionel, who came to do the survey was prompt, extremely polite, informative, more than happy to answer questions at the time and the report was sent couple days later as promised."

A Mathew
Trustpilot review

Areas We Cover Around Greenford

We cover Greenford and the wider west London area, including:

  • Greenford Broadway
  • Greenford Green
  • South Greenford
  • Perivale
  • Northolt
  • Sudbury
  • Sudbury Hill
  • Hanwell
  • West Ealing
  • Ealing
  • Alperton
  • Southall
  • Horsenden
  • Ravenor
  • Costons Lane
  • Oldfield Lane
  • Stanhope Park
  • Selborne
  • Westway Cross
  • Ruislip Road

In the wider city too? See our main London damp proofing page, or our nearby Ruislip page.

Damp Proofing Greenford FAQs

Which parts of Greenford do you cover?
All of Greenford and the surrounding west London area, including Greenford Broadway, Greenford Green, Perivale, Northolt, Sudbury, South Greenford and out to Hanwell, West Ealing and Ealing.
I have damp in a 1930s Greenford semi. Is it rising damp?
Usually not. Most of Greenford was built in the 1920s and 1930s, and those cavity-walled semis far more often suffer penetrating damp through bridged or failed cavities, leaking bays and tired render, or condensation after double glazing and draught proofing have reduced ventilation. Genuine rising damp is much rarer in this stock. A survey confirms the real cause before any treatment.
Can you work on older period homes near Holy Cross and Oldfield Lane?
Yes. Greenford has an older village core around Holy Cross Church with some solid brick period property. These can suffer genuine rising and penetrating damp, and they need a breathable approach rather than trapping moisture behind cement render. We treat the cause and use sympathetic repairs.
Does being near the River Brent or the canal cause damp?
It can. The River Brent and the Grand Union Canal run through low-lying parts of Greenford that have historically been prone to flooding, so homes near the water can have a high water table that shows up as ground damp in floors and cellars. A survey establishes whether the water is coming from the ground, the structure or the air inside the home.
How much does damp proofing cost in Greenford?
It depends on the cause, how much of the property is affected, access, and whether replastering is needed, so there is no honest one-size figure. After a survey we provide a clear, itemised written report so you know exactly what the work involves and what it costs before deciding anything.
Is the work guaranteed?
Yes. Our installed damp proofing and waterproofing work is backed by a written 10 year guarantee, which is transferable if you sell and is accepted by solicitors and lenders during a sale.

Book a Damp Survey in Greenford

Get the real cause of your damp diagnosed by a specialist who understands Greenford property, from 1930s semis to period homes and canal-side flats, with a clear written report and honest advice.

Last updated June 2026 · Advanced Damp Ltd · Damp proofing in Greenford, west London · 0300 373 7251