Can wet rot timber be repaired instead of replaced?

Often, yes. Where decay hasn't gone too deep, we splice in new timber alongside sound existing sections and treat the whole area — a repair that's usually quicker and less costly than full replacement.

What's usually causing wet rot around windows and doors?

Most commonly it's a failed paint seal, perished putty, or water tracking in around a frame over time. Fixing this seal or drainage issue is essential — otherwise new timber will eventually suffer the same fate.

How serious is wet rot?

It weakens timber significantly if ignored, so it's worth treating promptly rather than waiting.

Specialist Service

Wet Rot Treatment

Name: JRP Ltd
Address: Sibrwd Y Dail, Tiers Cross, Haverfordwest, Pembrokeshire, SA62 3DB, GB
Telephone: 01437 891178

Treatment and replacement of wet-rot-damaged timber in window frames, doors, joists and structural elements — before it spreads any further.

Common timber decay

Repair where possible

10 Year Guarantee

Get a quote from us 01437 891178

Wet rot is the most common form of fungal timber decay and is caused by sustained high moisture content in timber — typically around leaking windows, doors, guttering or low-level joinery.It doesn't spread through masonry in the same way as other decay, but left unchecked it still weakens timber and needs addressing before it spreads further or the timber fails structurally.

We identify exactly which timbers are affected, treat or splice-repair sections that are still sound enough to save, and renew anything too far gone. Just as importantly, we fix the underlying cause of the dampness — a failed seal, poor drainage, or a leak — so the problem doesn't simply return in a year or two.

What's included

Assessment of decay extent and the moisture source
Repair of leaks, seals or drainage causing the damp
Preservative treatment of repairable timber
Splicing or full renewal of severely decayed sections
10 Year Guarantee and ongoing care recommendations

Warning signs

When to call us

Soft, spongy or noticeably dark timber
Cracking that runs along the grain (not across it)
Localised dampness around windows, doors or low-level joinery
Flaking or bubbling paint on external joinery
Visible fungal growth on affected wood

What you gain

Benefits of treatment

Stops active decay before it spreads further
Saves repairable timber wherever genuinely possible
Restores structural soundness to affected joinery
Addresses the damp cause, not just the symptom
10 Year Guarantee on all treated and replaced timber (QANW IBG available)
Often more cost-effective than full replacement

Our process

How we work

01
Assessment
Identify the extent of decay and locate the moisture source.
02
Resolve damp
Repair leaks, improve drainage or address damp ingress.
03
Treat or replace
Treat repairable timber; splice or renew severely decayed sections.
04
Protect
Preservative treatment plus recommendations for ongoing care.

Get a quote from us 01437 891178

Common questions