Specialist Service
Timber Treatment
Specialist treatment of rot, decay and infestation in structural timbers, joinery and roof spaces — protecting the parts of your home you can't always see.

Welsh weather is hard on timber. Even a well-maintained property can develop pockets of rot or insect attack — most commonly wherever damp has been left untreated for long enough to take hold, whether that's a leaking gutter above a roof timber or rising damp reaching a floor joist.
Our timber treatment service starts by identifying the actual cause, not just the symptom. We inspect accessible structural timbers — roof spaces, floor voids, joinery — assess how far any decay or infestation has spread, and only then recommend treatment. Addressing the underlying damp is always part of the plan, because treating timber without solving the moisture source just means the problem returns.
Sound timber is protected with professional-grade preservatives applied by brush or spray to penetrate the timber fully. Where decay has already compromised structural strength, we'll advise on or arrange appropriate carpentry repairs so the fix is complete, not just cosmetic.
What's included
- Detailed inspection of accessible roof, floor and joinery timbers
- Diagnosis of cause — damp source, rot type or insect species
- Professional-grade preservative treatment to all at-risk timber
- Guidance on any carpentry or replacement work required
- 10 Year Guarantee on treated areas
Warning signs
When to call us
- Softening or crumbling timber when pressed
- Cuboidal cracking across the grain
- White or brown fungal growth on wood or masonry
- Small round holes in joinery (woodworm)
- Damp patches near beams, joists or roof timbers
What you gain
Benefits of treatment
- Protects the structural integrity of your home
- Halts active rot and insect infestation
- Addresses the underlying damp cause, not just the symptom
- Preserves original and period features wherever possible
- 10 Year Guarantee on all treated timber (QANW IBG available)
- Reduces risk of costly structural repairs later
Our process
How we work
- 01
Inspection
Qualified Assessment with detailed inspection of accessible timbers — roof, floors and joinery.
- 02
Diagnosis
Identification of cause: damp source, rot type or insect species.
- 03
Treatment
Targeted application of approved preservatives, plus any required carpentry.
- 04
Prevention
Practical recommendations to keep timbers dry and protected long-term.
Common questions
Timber Treatment FAQs
You may also need
Related services

Woodworm Treatment
Proactive identification, eradication and prevention of woodworm in homes, barns and outbuildings — treating the cause, not just the beetle.
Learn more
Wet Rot Treatment
Treatment and replacement of wet-rot-damaged timber in window frames, doors, joists and structural elements — before it spreads any further.
Learn more
Damp Proofing
Eliminate rising and penetrating damp for good. Professional diagnosis, proven chemical DPC systems and a 10 Year Guarantee — from Pembrokeshire's longest-serving damp specialists.
Learn moreRequest a no-obligation survey
Concerned about damp, timber decay or condensation? Send us an enquiry with a few details and we'll come back to you with professional, expert advice — backed by 35+ years serving Pembrokeshire.
