Rot repair & timber restoration.

Cutting out rotten timber. Splicing in sound wood. Saving the original frame.

Scope of works

Rot repair is item 01 of 14.

Included in Restoration and Double-glazing retrofit.

No. Scope item Restoration Double-glazing retrofit
01 Repair rot — wood-hardener treatment and spliced inlays — this page
02 Unblock painted-shut sashes
03 Service pulleys, hinges and locks
04 Replace sash cords
05 Fix loose joints — reinforce window frames
06 Repair cracked glass
07 Draught-proofing Optional
08 Remove single glazing
09 Rebate sashes and frames for VIG glazing
10 Install vacuum-insulated glazing
11 Add weights to counterbalance heavier glazing
12 Prime exposed timber
13 Ironmongery — install new lifts, fasteners, locks and handles on request
14 Remove rubbish on completion
See the interactive scope sheet →

Cutting out rot, splicing in sound timber

Rot repair covers a wide range of skills and methods depending on the damage. In most cases, rot is completely cut out and all vulnerable wood is made sound. Where entire sections of the frame need replacing, we use timber from the Accoya® range — chosen for its properties, workability, and sustainability credentials. It is also guaranteed for 50 years. To vulnerable areas, we apply Tricoya® veneers — they finish well and extend the lifespan of original windows considerably.

Repair, or replace the whole window

Our ethos is to repair timber whenever possible. This is vital for listed buildings and conservation areas. It makes financial sense too: a timber window repair costs roughly one-third of a full replacement.

We recommend a survey to determine whether it's possible to repair or whether a full or partial replacement will be necessary. Usually it's possible to repair — cheaper than replacing, and often as energy-efficient.

Restoring windows is worth considering: cheaper than replacement, and often as energy-efficient once the frame is sound and the glazing's right. Current guide prices are on the pricing page.