Woodworm & Timber Treatment
Damp and timber problems go together — where moisture reaches structural timber it can lead to wet rot, dry rot or woodworm in joists, skirtings, floorboards and roof timbers. We treat the timber and, crucially, deal with the moisture source that caused it, so the problem doesn't simply return.
Quick answer
Woodworm & Timber Treatment typically starts from £300 — from £300 depending on the extent of infestation or decay and access. We confirm a fixed written price after a survey, before any work starts.
What timber treatment involves
Dry rot in particular can spread through masonry and quickly become serious, so it's not something to leave. We identify the type and extent of decay or infestation, remove and replace timber that's beyond saving, and treat sound timber with the appropriate preservative — always alongside fixing the damp that let it start.
Timber decay is a symptom of a moisture problem, so treatment nearly always follows on from rising damp treatment, penetrating damp treatment or basement waterproofing — treat the wood without stopping the water and it comes straight back. A damp survey establishes both the timber condition and the moisture source together, so the whole problem is dealt with in one plan rather than piecemeal.
What's included in every timber treatment job
- ✓Wet rot, dry rot and woodworm identified and treated
- ✓Timber beyond saving removed and replaced
- ✓Sound timber treated with appropriate preservative
- ✓Underlying moisture source dealt with at the same time
Get a survey for timber treatment
Book a Free SurveyWhatsApp +44 7415 016237Check if we cover your area →When you might need timber treatment
The most common situations we're called out for — if yours isn't listed, send a couple of photos through the contact form and we'll tell you exactly how we'd handle it.
Woodworm holes and dust
Small round holes and fine dust in floorboards, joists or furniture indicating active woodworm.
Soft or crumbling timber
Skirtings, joists or floorboards that feel soft, spongy or crumble — a sign of wet or dry rot.
Damp-affected timbers
Where rising, penetrating or basement damp has reached structural or floor timbers.
How It Works
- 1
Book a free damp survey
Tell us what you’re seeing — a tide mark, black mould, blown plaster or a survey that flagged damp. We arrange a visit, usually within a few days.
- 2
We diagnose the real cause
On site we identify whether it’s rising, penetrating or condensation damp (they’re treated completely differently) and give you a clear, honest explanation.
- 3
You get a fixed written quote
A clear, itemised price for the recommended work — no pressure, no vague estimates that move on the day, and no charge for the survey on standard jobs.
- 4
We treat it and guarantee it
The work is carried out to industry standards, the area is left clean and ready to redecorate, and the treatment is backed by a written workmanship guarantee.
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.
Often needed alongside timber treatment
Damp problems rarely come alone — these related treatments are commonly part of the same job, for example rising damp treatment, penetrating damp treatment and damp surveys & reports.
Where we cover timber treatment
We provide woodworm & timber treatment right across England, Wales and Scotland as part of our regular damp proofing coverage, including busy counties such as Greater London, Greater Manchester, Kent, Devon, Staffordshire, West Midlands, Hampshire and Merseyside. Not sure if we reach you? Check the full areas we cover or just send your postcode with your enquiry.
Timber Treatment — frequently asked questions
Can you treat woodworm and rotten timber too?
Yes. Damp and timber problems usually go together — where damp has caused wet rot, dry rot or woodworm in joists, skirtings or timbers, we treat the timber as part of the same visit once the moisture source is dealt with.
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.
How quickly can you survey a property in your area?
We cover your area regularly and can usually arrange a survey within a few working days — sooner for urgent cases such as a sale falling through on a damp report.
How long does damp proofing last?
A correctly installed damp-proof course and salt-resistant re-plaster should last for decades, which is why the work is backed by a written guarantee. The key is treating the actual cause, not just covering the symptom — which is what the survey stage is for.
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 survey for timber treatment
Tell us about the damp and your postcode — we'll arrange a survey and a fixed written quote.