The complete solution to any budget or style. Replacement windows that are perfect for your project.


uPVC Casement windows

Exceptional performance combined with lasting beauty. Elegant and energy efficient.

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Slimline windows in Wiltshire
uPVC Slimline (Slim Jim) windows

Exclusive to Thermaglaze. Developed to allow for a much greater glass area due to ultra-slim sightlines.

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uPVC Flush casement windows

Brings together a clever blend of old and new. Authentic designs with a modern twist.

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Contemporary-squared Casement uPVC Windows

Symmetrical & sleek, perfect for modern interiors.

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uPVC Cottage suite windows

Elegant in its simplicity and is found in all sorts of traditional properties, from all periods.

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uPVC Vertical/Sliding sash windows

Bringing a traditional elegance to your home. Available in a choice of materials and finishes.

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Aluminium windows

Bespoke architecturally designed aluminium frames in a choice of over 150 stunning RAL colours.

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Aluminium Heritage Royalle Range

We have the perfect suite of Heritage Royalle to suit your home, whether it’s a listed, conservation or heritage property.

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Aluminium secondary glazing

Enjoy all the benefits of double glazing whilst retaining the original character of your property.

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The Thermaglaze Family

Like the look of our service and products but not based in our catchment area? Take a look at our 2 sister companies in the surrounding area.

Clearglaze Windows

Based in Bath, we cover the following areas: Bradford on Avon, Radstock, Keynsham, Chippenham, Saltford and Midsomer Norton.