Our Window Range

A window for every part of the house

Every window in the Ascot range is manufactured in the UK to your exact opening sizes, glazed as standard with a 28mm double-glazed sealed unit, and finished in a foil colour of your choice. Whether you're replacing a single window or renovating a whole elevation, our own surveyors measure, order and fit everything in-house — nothing is subcontracted.

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Our Windows

Choose your style

Two core ranges, with dozens of colour and glazing combinations.

Casement Windows

More about Casement Windows

Flush Sash Windows

More about Flush Sash Windows

Close-up of a double-glazed window unit showing the warm-edge spacer bar
Energy efficiency

Built to cut heat loss, not corners

Every frame is reinforced, multi-chambered uPVC (or a timber-alternative profile for flush sash) holding a 28mm double-glazed unit with soft-coat Low-E glass, argon gas fill and a warm-edge spacer bar. Standard windows achieve a U-value of 1.4 W/m²K, dropping to 1.2 W/m²K with our upgraded glazing pack — comfortably inside Building Regulations Part L, and a genuine difference on your heating bills.

See our full specification
Windows FAQs

Common questions about our windows

Our standard 28mm double-glazed units achieve a U-value of 1.4 W/m²K. Upgrading to our Low-E soft-coat glazing pack with argon fill brings this down to 1.2 W/m²K, and a 44mm triple-glazed unit is available on request for as low as 0.8 W/m²K.

Every window is available in a foil-wrapped finish, including Anthracite Grey (RAL 7016), Chartwell Green, Black, Cream and a range of woodgrain effects. You can also specify a different colour inside and out at no extra cost.

Casement windows can be top-hung, side-hung or fully reversible for easy cleaning from inside, with fixed lights available for larger openings. Flush sash windows open in the traditional side-hung style, with a slim, flush-fitting sash.

Every window is fitted with multi-point shootbolt locking as standard and is tested to the PAS 24 security standard. Secured by Design certified hardware is available as an upgrade.

Testimonials

What our customers say

Real feedback from homeowners across Berkshire and Surrey who have had windows, doors or conservatories fitted by our team.

Rated 5 out of 5 stars
We went from a rough sketch on a napkin to a finished garden room in about ten weeks, including the wait for planning approval. Ascot Home Improvements handled the whole...

Teresa Blackwood

Trustpilot
Rated 4.5 out of 5 stars
Bi-fold doors across the back of the house, opening onto a new patio. Five panels, folding back almost completely out of the way, exactly what we wanted for the summer....

Liam O'Dowd

Review
Rated 5 out of 5 stars
As a letting agency managing over sixty properties in the area, reliability matters more to us than almost anything else. Ascot Home Improvements have fitted replacement windows and doors across...

Sandra Whitlock

Whitlock & Bryce Lettings

Google
Rated 5 out of 5 stars
Full house window replacement, twelve windows plus a bay at the front, over three days. What stood out was how tidy the site was kept each evening — dust sheets...

Mark Fenwick

Facebook
Rated 4.5 out of 5 stars
Converted our old lean-to conservatory into a proper garden room with a solid, insulated roof. We use it as a home office now, which we could never have done before...

Priya Nair

Checkatrade
Rated 5 out of 5 stars
New composite front door and a pair of French doors to the back garden, fitted within the same week. The colour match to our brickwork was spot on and the...

Graham O'Sullivan

Trustpilot