QDT is now managed by AG Damp Solutions. New Enquiries only.

0800 859 5938
Opening Hours Mon to Fri: 8am - 5pm
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The region's premier damp proofing specialists

About Us

Caring for domestic and commercial properties for over 40 years

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About Us

Here at Quadrant Damp & Timber Treatments, we provide a range of damp proofing and treatment services for domestic and commercial properties throughout North and West London, including the Ealing and Hampstead areas. With over 40 years of industry experience, our expert team can quickly identify damp in your property and find the most suitable solution to correct the problem.

We are one of London’s most established and reputable companies, we pride ourselves on our customer service, effective and quality workmanship, and competitive prices. Whether your property is suffering from damp or woodworm, or are in need of your basement waterproofing, our experienced and professional team of engineers will use the latest technology to find and fix the problem as quickly as possible with the least amount of disruption.

We are proud to be members of the British Structural Waterproofing Association and the Damp Proof Association, and have been awarded accreditations from leading industry bodies such as Safe-Guard and Vandex. We take pride in being trustworthy and reliable. For the superior safety of our customers and their homes, all of the chemicals and materials we use comply with British Standards and have passed HSE tests, with a one hour re-entry period for minimal disruption to your property.

For honest advice from one of our experienced engineers, or to arrange a free, no obligation damp survey, get in touch with our friendly team today.

We used Quadrant for damp proofing the ground floor of our home. We found them to work diligently in getting the job done. All questions and concerns were addressed by the team. I wish to express a special "thank you" to Ellie, Paul and Rob. I can also say that both Rob and Paul cleaned up after the job and Ellie always provided a polite, professional and proficient service. I recommend Quadrant to anyone looking for damp treatment. Thank youread more
Manbir Leefield
Manbir Leefield
11:56 22 Feb 18
Very helpful, a professional report was done, the guy who came to see my property was on time and polite. He sent me a very detailed report explaining that the problem was condensation not damp, and how we can prevent this in the future. I contacted many other companies, some wanted to charge me for a survey, some didn't turn up and one was rude to me down the phone. I can't stress enough how pleased i was with this company's attitude, I would recommend them to anyone.read more
Paul Clark
Paul Clark
14:19 23 Nov 16

If you have damp in your property, ACT NOW!

Call us today on 0800 859 5938

We specialise in:

  • Damp Proofing
  • Woodworm
  • Damp Surveys
  • Wet and Dry Rot
  • Basement Waterproofing
  • Commercial Damp Proofing
  • Rising Damp
  • Concrete Repairs and Treatment
  • Structural Waterproofing (including basement conversions)


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