Assess the window before choosing
- Surface paint degradation: chalking, flaking or cracking that has not progressed into deep timber decay.
- Putty and glazing: loose, cracked or missing putty and whether glass is securely held.
- Bottom rails and sills: softness, open end grain, failed joints and weathering where water tends to sit.
- Operation and structure: whether sashes move safely, joints remain firm and frames are not severely distorted.
When restoration and repainting may be viable
Expose sound edges
Remove loose coating carefully and feather firmly bonded paint without unnecessarily damaging sound timber.
Assess after preparation
Probe suspect weathered areas and decide whether localised repair is appropriate or a carpenter should inspect deeper damage.
Stabilise and repair
Where suitable, use a compatible timber stabiliser or primer and a two-part timber filler for limited defects, following the product system.
Prime and undercoat
Prime bare timber, end grain and repaired areas, then use the appropriate undercoat before finish coats.
Apply the selected finish
Use a compatible exterior enamel or acrylic system, taking care around sash contact points, drainage paths and glazing.
Warning signs repainting alone is not enough
- A screwdriver or probe enters deeply into soft timber rather than finding a firm base.
- Rot extends through joints, sash rails, sill sections or load-bearing parts of the frame.
- Window components are loose, significantly distorted or unsafe to operate.
- Water entry continues because flashing, drainage, glazing or adjacent building work has failed.
When to involve a carpenter or window specialist
Significant rot, failed joinery and unsafe operation are not solved by filler and paint. A carpenter or timber-window specialist should repair or replace affected components before the coating work proceeds.
For pre-1970 homes, previously painted timber may contain lead-based paint. Baku Painting is not a lead abatement contractor. Read our Lead Paint Safety guide before disturbing old coatings and engage an appropriately qualified specialist where lead abatement is required.
