Thermaglaze Windows & Conservatories Ltd · Company 05110747 · Trading heritage since 1987
Active, accounts up to date·subcontractor & developer·Head office Somerset
ThermaGlaze has been a leading home enhancement company in Wiltshire, Dorset, and Somerset since 1987. With over 37 years of experience, they have built a strong reputation for delivering exceptional customer service and high-quality products. They specialise in the installation of uPVC and aluminium windows, composite doors, and solid roof replacements, aiming to surpass customer expectations with every project.
Their ethos is built on old-fashioned values, offering a no-pressure, no-nonsense approach to sales and installations. This commitment to customer satisfaction has resulted in a significant portion of their business coming from referrals. The company has grown over the years, integrating smaller successful companies into the ThermaGlaze family, extending their reach and product offerings.
ThermaGlaze prides itself on its skilled and professional installation teams who are meticulous and tidy, ensuring minimal disruption. They offer a comprehensive service from initial consultation and design through to installation and aftercare, making them a trusted choice for homeowners seeking reliable and high-quality home improvements.
Castle Cary, Somerset
A modern new build project featuring a glazed shaped frame to the rear for maximum light. Utilised Slimline Smarts Alitherm 300 windows and Smarts Visofold 1000 aluminium multifolding doors, with French doors in matching Visofold Profiles. Structural supports were cladded in matching aluminium pressings. The front elevation featured a Solidor composite front door in Anthracite Grey.
Client · Jenkins Developments
Frome, Somerset
A contemporary design dominated by an offset gable glazed façade to the rear elevation, maximising glass areas and light. The frontage was enhanced with Smarts Designer Doors in Sensations Antique Frey finish. The rear kitchen diner benefits from two-storey glazing, including a Triple Track 6 Pane Smarts Visoglide Plus Sliding Patio Door, creating a large clear opening when fully opened. Cladding was matched to produce a single gable infill.
Client · Jenkins Developments
Maiden Bradley, Wiltshire
A new annex built adjacent to an old cottage. Anthracite Grey (RAL 7016) was chosen to complement the timber cladding, natural stone, and slate roof. Simple single opening windows with minimal sightlines from the Alitherm 300 range were specified, with slimline Visofold 1000 doors for maximum glass and light. Doors and windows were finished in anthracite grey internally and externally.
Wylye, Wiltshire
A project with specific planning criteria, including a bespoke British Standard Colour (BS 3058 12B21) for the windows. A Crital lookalike Heritage Putty line window system was chosen for its authentic appearance and slim sightlines. Doors were specified using the Visofold 1000 system to accommodate larger sizes, with external arched heads finished to match the aluminium frames.
Crockerton, Wiltshire
Features Triple Track 6 pane sliding doors achieving a clear opening of 8 metres with slim meeting stiles. These Visoglide Plus doors offer large glass areas and a significant opening when fully opened. Special attention was paid to the threshold detail to achieve a flush floor from inside to outside. All finished in Sensations Platinum Grey.
Explains the company's clear customer journey for upgrading windows, doors, or conservatories, detailing every step of the planning and purchase process.
Bradford on Avon
Details a recent installation of new double-glazed windows and doors from the Residence 9 collection, finished in a Clotted Cream timber effect for both internal and external surfaces.
Jenkins Developments.
This profile was compiled from public records. Claim it to add the things buyers ask for:
Leading installer of uPVC & Aluminium double glazing windows, doors, composite doors, and solid roof replacements in Wiltshire, Dorset & Somerset. Their listed services include Windows & doors and Glazing.
Thermaglaze Windows & Conservatories Ltd is registered at 7a King Street, Frome, Somerset, BA11 1BH, in South West.
Thermaglaze Windows & Conservatories Ltd states that it works across Wiltshire, Dorset, Somerset and Bath.
Accounts filed for the year to 2025 report 27 employees, which places the company in the 10-49 employees band.
Thermaglaze Windows & Conservatories Ltd does not disclose turnover: UK small-company accounts are not required to. Based on headcount and trade debtors in its filed accounts, turnover is likely to fall between £1.4m and £3.6m. This is an estimate, not a filed figure.
Companies House lists Thermaglaze Windows & Conservatories Ltd as active, with accounts most recently made up to 2025-05-31.
Thermaglaze Windows & Conservatories Ltd displays CERTASS certified on its website.
Thermaglaze Windows & Conservatories Ltd works in Residential.
Thermaglaze Windows & Conservatories Ltd was incorporated on 2004-04-23, though the company says it has traded since 1987.
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