Over 20 Years' Experience

For over 20 years, Thomas Tonks has helped homeowners improve their properties with expertly installed windows, doors, conservatories and warm roofs. Combining quality products with outstanding craftsmanship and friendly service, we create beautiful, energy efficient living spaces built to enhance your home for years to come.

As a registered Residence Collection installer, a hup! approved business and Assure accredited, we work to high standards on every project. From our Gloucester showroom, we serve homeowners across Cheltenham, Swindon, Bristol and the wider Gloucestershire area, guiding you from your first visit to the final installation.

View Our Products

Take a look at our product ranges to find the perfect solution to your home improvement needs. Choose from uPVC, aluminium and Residence Collection windows and doors, plus conservatories, hup! extensions and warm roofs, all installed by our experienced team.

Windows
Doors
Conservatories

What Our Customers Say

Hear what our customers have to say about our installations. From new windows and doors to conservatories and warm roofs, homeowners across Gloucestershire share their experience of working with our team.

10/10

Brian Hutton

1 month ago

Excellent work done on our conservatory by Thomas and his team, very professional, very clean, started when they said they would start and timescale was just right. Thanks.

10/10

Colin Dymond

1 month ago

Even in the hottest days of summer we have still been able to use our conservatory. It was a big waste of space before, now it’s our favourite room in the house.

10/10

Tanky WB

1 month ago

Tom has just completed replacing our glass conservatory roof with a solid tiled roof. We were delighted with the end product, finished to a high standard of quality workmanship. We would have no hesitation in recommending TTI Ltd.

10/10

Charlene Phillips

1 month ago

Amazing group of lads very professional, brilliant workmanship, amazing product, really pleased with my new dining room.

10/10

Jim O'Brien

1 month ago

Excellent product and installation. Kept to timescales and good communications.

News & Updates

Read the latest tips, tricks and home improvement advice from Thomas Tonks Installations. Whether you’re comparing window styles, choosing a front door or planning a conservatory, our guides help you make confident decisions for your home.

Contact Us

Whether you're planning new windows, doors, a conservatory or a warm roof, our friendly team is here to help. Get in touch today for expert advice, a free no-obligation quote, or to discuss your home improvement project.

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