How much does damp proofing cost in Nottingham? (2026)

5 min read

Damp is one of the most over-diagnosed and over-sold problems in housing, so it pays to understand what you're actually dealing with before you spend. Here's an honest 2026 guide to damp proofing costs in Nottingham — and why the right diagnosis matters more than the treatment.

Typical damp proofing costs

Installing a new chemical damp-proof course (DPC) for rising damp typically costs around £300–£500 per wall, or roughly £2,000–£4,000 for a whole average house once you include re-plastering, which is often the bigger part of the bill.

Treating penetrating damp (water getting in through walls, roofs or around windows) depends entirely on the cause — it can be a £150 gutter or pointing repair, or a larger job if render or a roof is failing. Tackling condensation and mould is usually the cheapest, often £300–£1,500 for improved ventilation such as extractor fans or a positive-input ventilation (PIV) unit.

Re-plastering after damp work commonly adds £400–£700 per room, as salt-contaminated plaster has to come off and be replaced.

What drives the price (and the right diagnosis)

The type of damp is everything. Genuine rising damp is far less common than firms selling DPC injection imply — much "damp" is actually condensation or penetrating damp from a fixable external fault, and injecting a chemical DPC won't fix those.

The extent of the affected area, how much plaster has to be removed and replaced, and whether the underlying cause (leaking gutter, high ground level, failed pointing, poor ventilation) also needs sorting.

Access and the age and construction of the property — older solid-wall Nottingham homes behave differently from cavity-wall houses and sometimes need breathable, not sealed, treatments.

How to avoid overpaying

Be cautious with free "damp surveys" from firms that only sell DPC injection — they have an incentive to find rising damp. For a fair view, consider an independent damp surveyor (often a small fee) before you commit to expensive treatment.

Get two or three opinions, ask what's actually causing the damp, and treat the cause first. On Rank My Builder you can reach verified local builders and damp specialists and read genuine reviews before booking.

FAQs

Is it really rising damp, or something else?

Often something else. Condensation (worst in winter, around windows and cold corners) and penetrating damp (from a leak, failed pointing or high ground level) are far more common than true rising damp. A reading on a damp meter alone isn't proof — get the cause properly diagnosed before paying for a chemical DPC.

Does a damp-proofing treatment come with a guarantee?

Reputable firms often offer a long guarantee on an injected DPC, but it's only as good as the company and only covers that specific treatment — not damp from other causes. Keep the paperwork, and check the firm is established, as guarantees are worthless if they've folded.

Get free quotes for your job

Post once and up to 5 verified Nottingham tradespeople quote you.

Post a job — it's free Browse tradespeople