Damp Proofing in Neath Port Talbot
Across Wales, older stone-built and terraced housing exposed to heavy rainfall often suffers penetrating and rising damp, and we use breathable treatments suited to solid-wall construction.
Damp-proofing work in Neath Port Talbot is backed by a written workmanship guarantee, because it's done by treating the actual cause — a failed damp course, an outside water-entry point, or a ventilation problem — rather than just covering the symptom.
Across Neath Port Talbot we handle everything from rising damp treatment and penetrating damp treatment to condensation and mould control, installing a fresh damp-proof course and salt-resistant damp-proof re-plastering afterwards. Where damp has reached skirtings or joists we add woodworm and timber treatment, and for wet cellars we offer basement waterproofing — every job starting with a proper damp survey so the cause is diagnosed before any work begins.
Towns & areas we cover in Neath Port Talbot
Damp Proofing Price Guide
Indicative pricing — every job gets a fixed, written quote after a survey. No hidden extras.
Damp survey & report
diagnosis
Free
Free for straightforward jobs; a detailed independent survey report is available for mortgage or purchase cases.
DPC injection (per wall)
rising damp
from £350
Chemical damp-proof course injection to a single affected wall — priced by length and access.
Damp-proof re-plaster
per room
from £600
Salt-resistant re-plastering after treatment, so the wall can be redecorated cleanly.
Basement / cellar tanking
waterproofing
from £1500
Structural waterproofing (tanking or cavity membrane) — quoted per project after survey.
Damp services we offer across Neath Port Talbot
Rising Damp Treatment
Tide marks, salt staining and blown plaster on ground-floor walls treated at the source
Damp-Proof Course (DPC) Injection
Installing a new chemical damp-proof course where the original has failed
Penetrating Damp Treatment
Damp patches at any height caused by water getting in from outside
Condensation & Mould Control
Black mould in corners and around windows fixed with the right ventilation
Basement & Cellar Tanking
Structural waterproofing to turn a damp cellar into dry, usable space
Damp-Proof Re-Plastering
Salt-resistant re-plastering after treatment, so walls redecorate cleanly
Damp proofing in Neath Port Talbot — frequently asked questions
How do I book a survey?
Send your postcode and a short description (photos of the affected area help) by phone, email or the contact form, and we’ll arrange a survey and come back with a fixed written quote.
How much does damp proofing cost in Neath Port Talbot?
Most single-wall damp-proof course treatments in Neath Port Talbot start from around £350, with a full room including salt-resistant re-plastering nearer £600–£1,200 depending on size and access. We always confirm a fixed price in writing after a survey — no hidden extras.
How do I know if I have rising damp or condensation?
They're often confused. Rising damp shows as a tide mark up to about a metre on ground-floor walls, sometimes with salt staining; condensation shows as black mould in corners, around windows and in poorly ventilated rooms. A survey confirms which it is — the treatment is completely different, so getting the diagnosis right first matters.
Is the damp survey really free?
For most straightforward domestic jobs, yes — a survey and fixed quote are free with no obligation. A detailed independent report (for a house purchase, mortgage or dispute) is a paid, separate service, which we confirm up front.
What is a damp-proof course (DPC)?
A DPC is a barrier that stops ground moisture rising up through a wall. Older properties may have a failed or missing one; we install a new chemical DPC by injecting a water-repellent cream into the mortar course, which cures to form a continuous barrier.
Damp is treated by cause, not by symptom: rising, penetrating and condensation damp look similar but need completely different treatments, which is why every job starts with a proper survey and diagnosis before any work is quoted.
Book a free damp survey in Neath Port Talbot
Tell us about the damp and your postcode — we'll arrange a survey and a fixed written quote.