Trusted Llanelli Supplier of uPVC Windows and Conservatories

We are a family run business with over a decade in the industry providing UPVC Doors & Windows throughout Llanelli & West Wales

Innovation at its best

Thermaglaze's bespoke home improvement systems are brought to you with both innovation and design in mind.
All of our products are available in a vast range of colours and designed with your home at the heart supplied and fitted throughout Swansea, Llanelli, Neath and South Wales.

Our products your peace of mind

A Warranty you can trust

At Thermaglaze we have teamed up with IWG to provide you with an industry leading Guarantee ensuring that your installation has the extra peace of mind to be proud of.

The IWG or Insurance backed guarantee will not only protect your purchase after installation but will also protect your deposit prior to installation leaving you reassured that Thermaglaze really do have your best interests at heart.

Thermaglaze Insured Window Guarantee
largest composite door ranges

At Thermaglaze we offer one of the largest composite door ranges

From ultra modern to contemporary design and also traditional country doors which will bring your home to life and really add that curb appeal making you the envy of both neighbours and passers by.

Our Endurance solid and secure composite door is built with security safety and style and offers in excess of 70 door styles, with a choice of standard, luxury and premium door and frame colours, plus an even more extensive range of hardware colours and options.

UPVC Casement Windows

Thermaglaze’s UPVC casement windows Swansea are at the cutting edge in energy efficiency and carbon reduction.

Thermaglaze UPVC windows are manufactured using the Kommerling C70 Gold Chamfered system and is available in a wide range of colours.

'A' rated double glazing as standard with the option to upgrade to triple glazing if needed.

UPVC Casement Windows
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    A home addition constructed primarily of glass panels. It lets in a lot of light and offers a welcoming space for the whole family. It's a great way to expand your home without the cost of building an extension.

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    If you are looking for a lightweight roof system whilst also incorporating natural light, we have the technology to help. The Ultraframe Livinroof and the Ultraroof 380 tiled roof are the height of innovation and design, and will fit all existing and new conservatories.

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    Glazed door options

    Our French, sliding patio and Bi folding doors will be an amazing addition to your room offering both light and space whilst bringing the outdoors in.

Why Choose Us

Thermaglaze's friendly and approachable staff are here to guide you through the styles and options available.  Whether its for one window or a complete project, we promise to provide the same excellent service, competitive prices and products to be proud of for years to come.

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    Bespoke design, made to measure

    All of our products are made to measure and tailored to YOU and YOUR home.

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    Extensive knowledge

    All of our qualified fitters have many years in the industry and will leave you with a product you will be proud of for years to come.

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    Honest pricing, customer focused

    We know things are difficult in these trying times, that's why at Thermaglaze we try to keep our prices affordable.

Request A Quote Today

Reach Us

  • Email :

  • Phone :

    01792 277688

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