Updated June 2026 · CW Doors & Windows
French doors Leicester homeowners can trust
French doors transform a rear elevation more than almost any other upgrade. After 40 years fitting them across Leicester, here's how to specify a set that's secure, energy-efficient and built to last.
What makes a good French door
Solid 70mm uPVC or 44mm composite slabs — not thin extrusions.
Hook-and-bolt multi-point locking on both leaves, with shoot bolts top and bottom on the static leaf.
Hinge bolts on the hinge side of the active leaf to defeat hinge-side attack.
Laminated 6.8mm inner pane on the glazing — never toughened-only on a ground-floor door.
A-rated sealed units with warm-edge spacers to prevent the meeting stile becoming a cold bridge.
Typical Leicester prices (fully fitted)
Standard uPVC French doors: from £1,499 fully fitted.
Composite French doors with side panels: £1,950–£2,800.
Aluminium French doors: from £2,400.
Common Leicester installation patterns we see
1930s semis converting a kitchen door + window into a French door set onto a patio.
Modern detached homes replacing tired conservatory French doors with thermally broken aluminium.
Period properties in Stoneygate and Knighton specifying coloured timber-effect French doors for conservation compliance.
French doors or a sliding patio door?
French doors open fully outwards or inwards and suit gardens where you want the whole opening clear in summer. A sliding patio door suits wider openings and rooms where door swing would get in the way of furniture.
French doors start from £1,499 fitted and sliding patio doors from £1,395. On the survey we measure the opening and talk through which works better for your room, with no pressure either way.
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