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Aftercare

Working with natural materials sometimes means the occasional snag.

Timber moves, settles and responds to the seasons. It is what makes it beautiful, and it is why we stand behind every window and door we fit. If something is not working as it should, however small, we are on hand to put it right.

Restored timber sash windows by Kensington Sash, looking out over a West London garden
Our Guarantees

Every job we complete is covered, in writing.

10yrs
Timber & joinery
Against rot and defect in our manufactured joinery
10yrs
Glazing units
Sealed and vacuum units against seal failure
5yrs
Ironmongery
Sash furniture, pulleys and door hardware
10yrs
Workmanship
Our installation and fitting
8yrs
Paint & finish
Factory-sprayed Teknos microporous system

Guarantee periods apply from the date of completion and are subject to reasonable use and the care guidance below. Full terms are set out in your project paperwork. If you are unsure what applies to your job, get in touch and we will confirm.

Looking after your windows

A little care keeps timber windows working beautifully for decades.

Let them settle

New timber and paint need a few weeks to acclimatise. A sash may feel slightly firm at first as the finish cures. This eases with use and is not a fault.

Operate gently

Raise and lower sashes evenly with both hands where you can. On box sashes, use the lift handles rather than pushing on the glazing bars or the glass itself.

Manage condensation

Condensation on the glass is a sign of room humidity, not a window fault. Ventilate, especially in kitchens and bathrooms, and wipe frames dry to protect the finish.

Clean simply

Wipe frames with a soft, damp cloth and mild soapy water. Avoid solvents, abrasives and pressure washers, which damage the microporous paint film.

Keep drainage clear

Check that the small drainage slots along the bottom of cills and frames stay free of dust and debris, so water always has somewhere to go.

Redecoration in time

A factory finish lasts many years, but exposed elevations weather faster. When the time comes, a light sand and recoat protects the timber. We are happy to advise, see sash window painting.

Report an issue

Something not right? Tell us about it.

Use the form to describe the issue and attach any photos or a short video. It helps us understand the problem before we visit.

Our team aims to respond within 48 hours. For anything urgent, please call us directly.

Photos are attached to the email that opens when you submit.

This opens your email app with the details filled in. Prefer to write yourself? Email info@kensingtonsash.co.uk.

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Every property is surveyed in person, no hard sell.