Window styles
Casement windows are the everyday UK window: a fixed outer frame with sashes hinged at the side or top. They suit almost any house and are the style you can design online today.
Tilt & turn windows open inwards two ways from a single handle. French windows have two side-hung sashes that open without a centre post. Flush windows have sashes that sit level with the frame for a timber-style look. Bays and bows project outwards to add light and space.
Openers
In our configurator you choose which panes open and how. Hinge sides are always named as seen from outside:
- Side hung — hinged on the left or right, opening like a door.
- Top hung — hinged along the top, opening outwards at the bottom. Good for ventilation in the rain.
- Fixed — does not open. Lets in the most light for the frame size and costs less.
Opening sashes have size limits so they stay strong and operate properly. The configurator warns you instantly if a pane is too small or too large to open.
Glazing
- Double glazing — two panes with a sealed gap. The standard choice for most homes.
- Low-E double glazing — adds an invisible coating that reflects heat back into the room.
- Triple glazing — three panes and two cavities for extra warmth and quiet.
Obscure glass is available pane by pane for bathrooms and privacy. Georgian bars can be added for a traditional look.
Frame finishes
Choose white, anthracite grey or golden oak frames, and white, chrome or black handles. Finishes shown on screen are illustrations; ask us for a sample if an exact colour match matters.
Security & safety
Standard locks come with every opening sash, and upgraded locks are available. Child restrictors limit how far a sash can open, which is sensible for upstairs rooms. Where a window is a fire escape route, it must open wide enough — check with your installer.
Ventilation
Trickle vents along the top of the frame provide background ventilation when windows are closed. Replacement windows usually need them where the old windows had them, and new rules often require them anyway.
Building Regulations
Replacement windows in England and Wales must meet Building Regulations for energy efficiency, ventilation, safety glazing and escape. The simplest route is a FENSA or CERTASS registered installer, who can self-certify the work. Read more about installation.