Timber is the only window material that can be renewed, and that is precisely why it lasts so long. With minimal, regular care your timber windows keep looking new and their service life stretches into decades. This is the calendar we give our clients.
The rule of thumb: gentle cleaning every six months, hardware lubrication once a year and a refreshed finish every 8 to 12 years. Never use abrasives or aggressive solvents.
Every six months: cleaning
Wipe the frames with a soft cloth, warm water and a neutral detergent. Avoid abrasives, alcohol and solvents, which attack the varnish. Clear the drainage slots at the bottom of the frame too, so water runs out freely instead of pooling.
Once a year: hardware
Lubricate the moving points of the hardware — hinges, locks, tilt-and-turn mechanisms — with a light, purpose-made oil, and check whether any screw needs tightening. This five-minute routine keeps the action smooth and extends the life of the hardware.
Every 8-12 years: the finish
Depending on sun exposure and how close you are to the sea, the finish asks for renewal every 8 to 12 years. This is not repainting from scratch: a light sanding and a fresh coat of varnish or lacquer. That simple step is what makes timber repairable almost indefinitely.
What to avoid
- Abrasive products, steel wool and aggressive solvents.
- Pressure washing aimed directly at the frames.
- Letting water pool in the drainage slots or on the sill.
- Putting off the refreshed finish until bare timber is exposed.









