Who We are

From upgrading your existing conservatory with energy-saving, Themotec roof panels through to the very latest thermally efficient, high security windows/ doors and beautiful, bespoke conservatories Spire Windows are the obvious choice.

Spire Windows are a family business and have been trading for nearly 40-years so rest assured you’re dealing with both an experienced and caring company where good old fashion customer service is still of paramount importance.

From our factory in Louth, we manufacture all our own premium PVCu windows, doors and conservatories, and we are proud to be the innovators and the only UK fabricator of the unique Thermotec conservatory roof upgrade system – the only true, one-day conservatory conversion that not only radically transforms appearances but also massively improves thermal and acoustic properties.

Employing time served craftsmen and using only the very best materials we aim to offer our customers an industry leading finish, product and service.

Furthermore, we offer a fully comprehensive, enhanced 15-year guarantee on all our windows, doors and conservatories, and a reassuring 10-year warranty on our hand-made Thermotec roof panels.

Spire Windows are also long established members of Checkatrade, who recommend, vet and monitor our work, and they have scored us 9.9 out of 10 for overall service. Furthermore, our window and door frames are Police certified for security under the Secured by Design accreditation award scheme.

As the region’s leading Home Improvement Company we guarantee to beat any like for like quote and offer a free, without obligation quotations with full colour ‘CAD’ service where applicable.

Find out how Spire Windows can make your home improvement dream become an affordable reality by contacting our friendly customer service team today on 0800 488 0579.