If you have damp walls, it is natural to want to know what it will cost to fix. The price depends on what is actually causing the damp, and on how much work is needed to put it right.
Start with the cause
Not all damp is rising damp. Condensation, penetrating damp and plumbing leaks are all common, and none of them is fixed by a new damp proof course. A proper diagnosis can save you paying for the wrong treatment entirely.
What affects the cost of treating rising damp
Length of wall
A damp proof course is installed along the base of the affected walls, so the length of wall to be treated is a key factor.
Replastering
Rising damp carries ground salts into the plaster. These salts attract moisture from the air, so contaminated plaster usually has to be removed and replaced with a salt-resistant system. Replastering is often the largest part of the job.
Wall thickness and construction
Thicker solid walls need more injection, and some older or listed walls need breathable, lime-based materials.
Bridging and external work
If raised paths, patios or render are bridging the existing damp proof course, these may need lowering or cutting back too.
Preparation and making good
Moving kitchen units, removing skirting boards, radiators and sockets, and redecorating afterwards all affect the overall cost.
What a fair quotation should include
- A clear explanation of the cause
- Exactly which walls will be treated and replastered
- What preparation and making good is included
- Details of the guarantee
After your survey we provide a fixed, written quotation with no hidden extras, and our guarantees can be protected by an Insurance Backed Guarantee. See our damp proofing service or book a survey.
