Thermoframe UK

We're a friendly and professional window company, based in Barnsley but also have a office on the South Coast. We always give a hassle-free, no obligation quotation, giving you as much time as you require before making that important decision. We guarantee a rapid lead time when ordering new windows & doors, usually 7 - 14 days from order to the start of the installation. All of our work is certified, has deposit protection & Insurance Backed Guarantees, giving you a worry free project.


  • 1.Window Fitter
  • 2.Conservatory Installer
  • 3.Fascias, Soffits and Guttering Specialist

About Thermoframe UK

THERMOFRAME UK Ltd have over 60 years of trade experience combined, between the owner Phil, and the team of two craftsmen who work for the company. We are all time served joiners, after completing city & guilds apprenticeships in the 1980's.

Phil has worked within all facets of the industry, domestic, commercial and new build. Even working on some prestigious projects through the years, such as Canary Wharf, Wembley Stadium and 30 St Mary Axe, more commonly known as The Gherkin!

Due to demand, we have now opened an office in Southampton, servicing the whole of the south coast and the Isle of Wight.

We supply and install the very best products in the industry (Windows, doors, Composites, Orangeries, Conservatories, Lightweight tiled roofs, in all types of materials (aluminium, UPVC, Composite and Timber).

Most of our UPVC windows can be installed within 7 - 14 days from order and our Composite doors are usually within 14 days.

We also carry out vital repair work on properties that are Grade 2 listed or within conservation areas where replacement windows can be an issue. We do however, offer various solutions as a replacement, including the UPVC Residence Collection that replicates 19th century designs.

We have our own accredited specialist building team that would see to all building projects (modifications and bases) and all of our work is fully guaranteed.

We are proud members of IWG Ltd, offering full deposit protection and Insurance Backed Guarantees for all of our work.


City & Guilds time served Joiners
City & Guilds Builders
Qualified Glaziers and Locksmiths
Qualified and time served Building / Technical Surveyors
Over 60 years combined trade experience
Full manufacturers guarantees of products installed
Authorised to issue Insurance Backed Guarantees & deposit protection.
CSCS and Asbestos Awareness.