Local Window, Door & Glazing Specialists in South Yorkshire

Trusted by homeowners across Killamarsh and South Yorkshire get a free, no-obligation quote today

Windows, Doors, Conservatories & Glass Repairs

From energy-efficient uPVC to secure, low-maintenance frames, we fit windows built to keep your home warmer, quieter, and looking good for years.

Composite, uPVC or French doors, fitted to match your home's style — with the security and finish that's built to last.

Add space and light to your home with a conservatory designed around your layout, built to stay comfortable whatever the season.

Cracked pane, failed seal or a draughty old frame — we get it sorted quickly, without the cost or hassle of a full replacement.

Reliable Glazing Solutions

Straightforward advice and honest quotes

Experienced local glazing specialists

Quality window, door and glass installations

Local service across South Yorkshire

Explore our completed projects to see the quality craftsmanship we deliver.

Our clients appreciate our work see their feedback below!

"GTS was professional and efficient from start to finish. The quality of the work exceeded our expectations and we couldn't be happier!"

Sarah JohnsonHomeowner, London

"Their attention to detail is impressive. The installation was quick and clean, and the new windows have made a huge difference!"

Mark ThompsonProperty Manager, S&M Properties

"We referred GTS to our friends! Their service was friendly, and they completed the project on time. Highly recommend!"

Emily ClarkHome Renovator, Surrey

"The process was simple and the results have transformed our home. Thanks to GTS for a job well done!"

Chris DavisSmall Business Owner

Tell us what you need and we’ll get back to you with straightforward advice and a free no-obligation quote.