Specialist Service

Rotten Timber Repair

We use only the highest-quality hardwood to restore your windows, doors, and external woodwork to their former glory. Our specialist team can repair or replace any rotten timber element.

Rotten timber left untreated can spread quickly and compromise the structural integrity of your windows and doors. Our proven repair process removes all decayed wood and replaces it with carefully matched hardwood, finished to the highest standard.

Request a Quote
Rotten Timber Repair

Why Choose This Service

The benefits of rotten timber repair

  • High-quality hardwood matched to the original timber species
  • Repairs to window sills, frames, doors, and external woodwork
  • Epoxy consolidation of partially damaged timber where appropriate
  • Thorough preparation, priming, and painting for lasting protection
  • Preserves the original profile and character of period joinery
  • From a single sill repair to full property timber restoration

Recent Projects

Our rotten timber repair work

A selection of our completed projects across North London.

After Restoration

Join our Maintenance Programme

We recommend enrolling in our maintenance programme for regular inspections and preventative care to extend the lifespan of your restored windows.

Learn About Maintenance

FAQs

Frequently asked questions

How do you repair rotten timber in windows?

We begin by carefully removing all decayed wood back to sound timber. Depending on the extent of the damage, we either consolidate the area with epoxy resin or splice in new hardwood matched to the original species. The repair is then shaped to the original profile, primed, and painted for a seamless, long-lasting finish.

Can rotten window sills be repaired or do they need replacing?

In many cases, rotten window sills can be repaired rather than fully replaced. If the rot is localised, we use epoxy consolidation or splice in new hardwood to the affected section. For more extensive damage, we replace the entire sill with carefully matched timber. Either way, the result is a sill that looks and performs like the original.

What types of timber do you use for repairs?

We use high-quality hardwood for all timber replacements, matched to the original species wherever possible. Common species include sapele, meranti, and European oak. We also use specialist epoxy resin systems to consolidate and rebuild partially damaged sections.

How long do timber repairs last?

When properly executed and maintained, our timber repairs last for decades. We use quality hardwood, thorough preparation, and protective paint systems to ensure maximum longevity. We also recommend our maintenance programme for regular inspections and preventative care.

Start Your Project

We’d love to be part of your next project

Whether you need a single window restored or an entire property renovated, our team is ready to help preserve the character of your home.

Repaircare London

North London's trusted window restoration and decorating specialists. Over 40 years of experience preserving the character of period properties.

Contact

© 2026 Repaircare London. All rights reserved.

Designed by WHP Creative