Kensington Sash window restoration & slim double glazing

Double Glazing Installer
Open today until 5:30 PM
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15% reduction on all secondary glazing in February

Feb 2, 2020 – Feb 29, 2020

We are offering 15% reduction in cost before vat on all secondary glazing in February.

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Just started anew project in Tattenhall in Cheshire this involves draught proofing and rot repairs

10% off double glazing your original sash windows

Dec 15, 2019 – Jan 20, 2020

Double glaze your original sash windows and reduce your heat loss by over 50% from your single glazed windows. Get 10% off by mentioning this post on our Google business site.

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The dangers of paper thin period glass, this is a Victorian sash window that after laying down on the workbench just smashed for no reason the glass was about 1.5mm thick and really brittle, some of this old glass can be quite dangerous in low level windows.

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Double glaze your original sash windows with slenderpane double glazing virtually indistinguishable from single glazing.
Double glazed sash windows retain around five times more heat than single glazing.

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Don’t get caught out in the cold this winter double glaze your original sash windows without changing the appearance. You can achieve a u-value of 1.6 with prices starting from £400.00

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A slim double glazed unit ready to be fitted to a sash notice the triangulated oak bead to replicate the putty line, this is bonded on with a specialist glazing compound seen in the picture for a permanent seal that will not allow ingress of water .

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10 months ago
I am really pleased with the work that the Kensington Team undertook on my windows to refurbish them and convert to double glazing. I wanted to keep the original windows character and the windows now look great
- Guy W
a year ago
Kensingtons carried out an excellent, sympathetic restoration of our windows, eleven in total. Very pleased with the result, Kensingtons were friendly, reliable and obliging. I have absolutely no hesitation in highly recommending this company.
- Andrew H
a year ago
Very good quality work and a pleasure to deal with. Really pleased with our windows, thank you.
- Lynda F

Contact Us


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  • 0800 009 6180

Business Hours

Mon:8:00 AM – 5:30 PM
Tue:8:00 AM – 5:30 PM
Wed:8:00 AM – 5:30 PM
Thu:8:00 AM – 5:30 PM
Fri:8:00 AM – 5:30 PM
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