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Home Improvements

Windows

Three systems, one fit

uPVC casement, uPVC flush sash and aluminium — every window is measured on site and manufactured to the opening, not trimmed to fit a stock size.

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A white uPVC casement bay window fitted to a brick house, close-up exterior view

uPVC casement windows

Deceuninck 2500 & 2800 Heritage

Our uPVC casement windows are manufactured from Deceuninck's profile system — the chamfered 2500 for a clean contemporary line, or the sculptured 2800 Heritage for a traditional outward-opening sash that stands proud of the frame.

energy ratingA+ as standard, triple-glazed option available
colours20 colourways from stock, 30+ across the Heritage woodgrain foil collection
securityMulti-point locking as standard
material100% recyclable PVC-U
A+ rated 10 year guarantee
Deceuninck 2500 chamfered uPVC casement window, white finish
Interior view through a cream uPVC casement window looking onto a garden
Interior view of a rosewood woodgrain uPVC flush sash window looking out onto a garden

uPVC flush windows

Deceuninck Heritage Flush Sash

The sash closes flush with the face of the frame instead of sitting proud of it, so there are no visible horns — the look period properties and conservation areas usually call for, without the upkeep of timber.

energy ratingWER up to A++, U-values as low as 0.90 W/m²K
coloursOver 30 colourways, matching trims and ancillaries
securityMulti-point locking as standard
suitabilitySits comfortably in conservation areas and period streets
A++ rated 10 year guarantee

Aluminium windows

Smart Systems Alitherm

Alitherm Heritage gives you the slim steel-window look for period or listed properties; Alitherm 300 is the everyday contemporary casement. Both use Smart's polyamide thermal break to keep the cold side of the frame separate from the warm.

energy ratingU-value 1.5 W/m²K, Window Energy Rating A
finishesFull RAL range plus Sensations textured and Alchemy anodised-effect finishes
securityPAS 24 tested, multi-point locking
standardsBritish Standard Kitemarked (KM 81580, KM 81543)
A rated PAS 24 tested
An open anthracite grey Smart Systems Alitherm aluminium casement window
Close-up detail of an anthracite grey aluminium window frame against a stone wall

Where it's made

Our uPVC windows are fabricated from Deceuninck profile, manufactured in the UK. Our aluminium windows are fabricated from Smart Systems profile, the UK's leading supplier of aluminium glazing systems. Naming the system means you can look up the exact spec yourself — we're not asking you to take our word for the U-value.

Get a fixed price on your windows

A surveyor measures up, you get a fixed written price. No pressure, no same-day discount nonsense.

Book a home survey