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Dormer Windows
Dormer Installation in Bristol
Dormer windows from Builder In Bristol are safe, stylish and lightweight. They’re a smart choice over standard materials because they install quickly, require little upkeep and perform well over time. Each unit is available in several sizes and styles, factory-finished with a timber frame and spray foam insulation.
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What Is a Dormer?
A dormer is a type of window installed upright on a sloped roof. It comes with its own cover, which can be flat, arched, shaped or pointed. Dormers may be added into roof slopes or walls and are made in many forms to suit different homes.
Originally designed to draw daylight into large roof spaces, dormers brighten areas that gable windows cannot reach. They’re often better than Velux Windows for allowing views outside, which helps the room feel more open.
Dormers are ideal when extra headroom is needed or for adding usable space in single-storey homes.
Why Choose a Dormer Window?
Improved ventilation
Dormers often go in upper floors where warm air collects. A working window helps stale air escape and allows cooler air in.
Added living space
Larger styles, like a shed dormer, can stretch across the full roof length. The added room can serve as a reading corner, bed area or hold a dresser or bench.
Better interior lighting
Dormers brighten lofts or attics that are usually dim. They also create more headroom and open up the space.
Emergency access
In some homes, a dormer may act as an exit if no other is available. Some owners keep a rope ladder close just in case.
Improved home value
Dormers make buildings look more detailed and balanced. Inside and out, they add design interest. A well-placed dormer can boost curb appeal and attract buyers.
Exterior appearance
Dormers help break up long rooflines and add charm. They let in more light while offering clear views outside.

Dormer Styles Available
Builder In Bristol Dormer Window Services
Design Support
Our team designs each dormer to match your needs. We’ll walk you through ideas and help with all the planning needed. From first drawings to final design, everything is handled by our local team.
Construction
We build dormers using timber frames fixed to roof supports, following all safety rules. Work includes opening the roof, fitting the frame, boarding, cladding, and plastering inside.
Repairs
Over time, dormers may wear down due to weather. We offer repair help for leaking, cracked or broken dormers. We'll make sure yours works like new.
Replacements
If your dormer is beyond repair, we can replace it. Our replacement work meets strict standards and is carried out quickly. We also keep prices fair, often up to 30% lower than other options.
Our windows are made in the UK, keeping delivery fast and reducing impact on the planet. Each product meets all industry requirements and comes with added perks you’ll appreciate.




