Woodworm Treatment Cost: 2026 UK Price Guide
Published 2026 UK woodworm treatment costs by room, loft and whole house, with named sources, London differences and the factors that move the price of a quote.
Woodworm treatment costs vary because every job differs. This guide collects published UK prices from named sources and explains what moves the figure, so you can judge a quote. We have added no price of our own.
What published guides say
The table uses the Fantastic Services 2026 cost guide, which states that its prices include VAT.
| Job | Rest of UK | London and South East |
|---|---|---|
| Survey | £80 to £180 | £100 to £220 |
| Single room | £300 to £500 | £360 to £650 |
| Several rooms or large loft | £500 to £800 | £650 to £1,000 |
| Whole house | £800 to £1,000+ | £1,000 to £1,300+ |
The guide gives spray rates of £50 to £80 per m² outside London and £65 to £100 per m² in London.
What other sources say
MyJobQuote lists £800 to £1,000 for a 25m² loft. It prices fogging or fumigation at £500 to £600 for 15m², £700 to £800 for 25m² and £900 to £1,000 for 35m². It lists surveys at £80 to £130 for a small home and £200 to £250 for a large one.
DampHub estimates £200 to £500 for small repairs and £1,000 or more where large beams or several joists need replacing. The sources differ, so treat all of them as guides. Prices also change, although the ranges here are for 2026.
What moves the price
- Area treated. More timber means more cost.
- Access. Open joists are quick. Cramped lofts and fitted floors add labour.
- Severity. Heavy damage may need paste, extra visits or repair.
- Species. Death watch beetle in oak may need a specialist approach.
- Timber repair. Weak wood needs repair as well as treatment.
- Damp. Leaks and rot must be fixed first, and that work is quoted separately.
Our page on treatment methods explains how the method changes the price.
DIY or professional?
A tin of woodworm fluid costs far less than a professional job. It can work on small items, although it is not a fix for floors, joists and roofs because it may not reach deep enough. Read DIY versus professional treatment before you decide.
How to compare quotes
Ask each firm to put the same things in writing:
- The beetle found and how they know it is active
- The timber covered and the area in square metres
- The method and product
- Whether VAT is included
- What happens if beetle returns
A low quote that covers half the timber is not a bargain, because the rest stays untreated. The post on how long treatment lasts explains what to expect after the work.
Do you need a survey first?
Yes, in most cases. A survey gives the facts that a quote depends on. Some firms credit the fee against work. You can request a survey when you are ready, or read the main cost page for the summary.
Local housing changes the risk. Read about woodworm treatment in Exeter and woodworm treatment in Bournemouth to see what affects homes in each area.
To go deeper, read about the spray treatment and the fogging and fumigation, because the right method depends on the beetle.