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Best damp proofing in Leeds: 3 local damp specialists
Black mould, peeling paint, a musty smell or a tide mark on the wall. Leeds has thousands of stone terraces and back to backs where damp is common. Below are 3 damp proofing firms in Leeds, what kind of damp you might have, and what to ask before you pay for treatment.
How we check: each card shows what we looked up ourselves, with the date, on Companies House and on the scheme's own register. Anything marked "per website" is what the firm says about itself. Before work starts, ask the firm for proof of its public liability insurance.
3 damp proofing firms in Leeds
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Leodis Damp Control
- Leodis Damp Control Limited: Companies House 16807458, active since October 2025 (checked 12 Nov 2026)
- Family run (per website)
- Mould surveys and testing, woodworm and dry rot treatment (per website)
Why they are here: A family run Leeds damp business that also does mould surveys and testing, woodworm and dry rot treatments and basement work, covering the north of England.
Damp and mould surveys, Mould removal, Woodworm treatment
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DAMPX
- DAMPX Ltd: Companies House 14899799, active since 2023 (checked 12 Nov 2026)
- Company guarantee with most services (per website)
- Says its staff are surveyors, not salespeople (per website)
Why they are here: A Leeds damp proofing and waterproofing company that covers damp surveys, condensation and mould, timber treatment and basement waterproofing, with finance available on larger jobs.
Damp surveys, Condensation and mould, Basement waterproofing
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Allerton Damp Proofing
- Allerton Damp-Proofing Limited: Companies House 02023575, active since 1986 (checked 12 Nov 2026)
- Specialists since 1983 (per website)
- 20 year insurance backed guarantees (per website)
Why they are here: A Yorkshire damp specialist trading since the 1980s that does damp and timber surveys for homebuyers as well as treatment, with insurance backed guarantees.
Rising and penetrating damp, Damp and timber surveys, Pre purchase surveys
Before you hire: three quick checks
- Ask what type of damp the surveyor has found and what evidence they used, not just a moisture meter reading.
- Ask for any guarantee in writing, and whether it is insurance backed so it still applies if the firm stops trading.
- For condensation and mould, ask about ventilation fixes before paying for chemical damp proofing.
Why damp is common in Leeds homes
Much of Leeds' older housing is solid wall stone and brick: Victorian terraces, back to backs in areas such as Harehills, Beeston and Armley, and inter war semis. These houses were built to breathe. Damp problems often start when that balance is upset, by cement render, blocked air bricks, raised garden levels or modern paints, or simply by drying washing indoors with the windows shut.
Three kinds of damp
- Condensation: by far the most common. Warm moist air from cooking, showers and drying clothes settles on cold walls and windows, and black mould grows. It is fixed with ventilation and heating, not damp proofing. See condensation and ventilation in Leeds.
- Penetrating damp: water getting in from outside, through a leaking gutter, failed pointing or a cracked render. Fix the leak first.
- Rising damp: ground water drawn up through walls with no working damp proof course. It is less common than many people think. See rising damp treatment in Leeds.
Start with a damp survey
A good damp survey identifies the cause before anyone sells you a treatment. Some damp companies offer free surveys and then quote for injection damp proofing whatever the problem. An independent survey costs money but tells you the truth. MyBuilder's 2026 guide puts damp surveys at about £150 to £500. See damp surveys in Leeds and our damp survey cost guide.
Damp and mould in rented homes
If you rent and have damp or mould, report it to your landlord in writing. Landlords must deal with serious damp and mould hazards, and the government has published guidance for landlords on the health risks of damp and mould. If your landlord does not act, Leeds City Council's private sector housing team can inspect.
Questions to ask a damp specialist
- What type of damp is this, and what caused it?
- What evidence have you used besides a moisture meter?
- Is the guarantee insurance backed, and what does it cover?
- Will you need to remove plaster, and who replasters?
- Could better ventilation solve this instead?
Questions people ask
How do I know if I have rising damp or condensation?
Condensation usually shows as black mould in corners, on window reveals and behind furniture, worse in winter. Rising damp shows as a tide mark up to about a metre above the floor, often with salts on the plaster. A survey will confirm which.
Is damp proofing worth it?
Only if the survey finds a damp proofing problem. Many damp issues are condensation or leaks, which need ventilation or repairs instead of chemical injection.
How much does a damp survey cost?
MyBuilder's 2026 guide puts most damp surveys at £150 to £500 depending on the property and the tools used, such as thermal imaging.
Can damp make you ill?
Damp and mould can affect health, especially for people with asthma, allergies or weak immune systems, children and older people. Deal with the cause promptly.