Replacement windows in Spalding and across Lincolnshire
Energy-efficient double glazed uPVC and aluminium windows: casement, sash, bay and flush casement, supplied and fitted by our local Spalding team. We repair windows and replace glass too.
Casement windows
Our casement windows are hinged at the side and open outward, so you get good ventilation and a clear view whenever they are open.
They are made from high-quality materials for lasting insulation, and you can choose the frame colour and glazing to suit your home.
- Open outward for easy airflow
- Choice of frame colours and glazing
- Energy-saving insulation
Sash windows
Sash windows slide up and down, giving you the classic look of a traditional home with modern efficiency.
They are made from high-quality materials for better insulation, which helps cut energy costs. Frames, glazing and hardware can all be chosen to match your home.
- Smooth vertical sliding
- Traditional look, modern insulation
- Choice of frames, glazing and hardware
Bay windows
A bay window projects out from the wall, adding space and light to a room and giving you a wider view of the outside.
Built with quality materials for good insulation and energy efficiency, our bay windows can be made to suit both traditional and modern homes.
- Extra floor space and daylight
- Wide, panoramic views
- Made to fit your home
Aluminium windows
Aluminium frames are slim and strong, so they can hold larger panes of glass. That means more daylight and clearer views.
They suit contemporary and minimalist homes, and they are built for long-lasting performance.
- Slim, strong frames
- Larger glass for more light
- A clean, modern look
Flush Casement windows
Flush casement windows sit flat within the frame when closed, for a neat, modern finish.
They are made from high-quality materials with good energy efficiency and security, and come in a range of colours and finishes.
- Flat, flush finish
- Energy efficient and secure
- Range of colours and finishes
Window needs fixing, not replacing?
We replace broken glass and repair windows too, including re-glazing old sash windows.
More of our window work
What customers say about our windows
- Verified
Josh and Dean were very easy to deal with. They did a first class job replacing glass, including removing an old sash window to re glaze it. Very good communication, they let us know when they were coming, and I would not hesitate to use them again.
First class service
David Casswell8 October 2026 - Verified
Highly recommended
Josh and Dean from Unique Glazing are the only professionals we would ever want fitting new doors and windows at our property. Their teamwork and attention to detail is second to none and we would highly recommend them to our family and friends. Great work lads and thank you 😀
Clare Todd28 July 2026 - Verified
Front door
Had unique glazing to fit a new front door , bathroom window and replace some glass. I would highly recommend. They have done a brilliant job
Rachel2 July 2026 - Verified
Excellent service, reliable, high quality
Excellent service, reliable and excellent quality work. We are super happy with the windows and doors.
Anna18 June 2026 - Verified
We were really impressed with everything from Unique Glazing. From the moment Josh and Dean answered our first call , to coming out to give us our quote , to installation they were brilliant , plus the quality of the new windows and doors were excellent. We will only use them for any future projects as they are the best! Thanks Guys for everything.
Kez20 February 2026
Ready for new windows?
Covering Spalding, Boston, Peterborough, Stamford, Bourne, Holbeach, Wisbech, King's Lynn and everywhere within 60 miles. See the areas we cover