French & patio doors in Westminster
From £1,300
| Service | Typical price in Westminster |
|---|---|
| UPVC double glazed windows | £563 - £1,125 |
| Sash windows (UPVC & timber) | £1,125 - £3,000 |
| French & patio doors | £1,625 - £4,000 |
| Bay & bow windows | £2,000 - £4,750 |
| Secondary glazing | £438 - £1,188 |
Looking for french & patio doors in Westminster? Compare free, no-obligation quotes from vetted local installers in your area. Typical prices in Westminster sit around from £1625 depending on unit count and specification.
French doors and sliding patio doors are the second-most-requested opening on a UK window replacement job, and the specifications people worry about first - security, thermal performance, threshold height - are the ones that differ most between products. A 1.8m UPVC french door set is typically £1,300-£1,800 fitted; the same opening in aluminium is £2,400-£3,400; a full three-panel sliding aluminium patio at 3.6m sits at £3,800-£6,500 depending on glass spec.
The two biggest technical decisions are the threshold and the locking. A standard rebated threshold is 45-70mm high and the compliant choice under Approved Document M is a 15mm 'low-profile' or level-access threshold - essential if you're extending a ground floor for accessibility or resale. Locks should be PAS 24:2022 certified with multi-point espagnolette gearing and an anti-lift bar; both leaves of a french door pair should be individually shootbolted top and bottom.
Popular specs for french & patio doors
French door standard spec: 70mm reinforced UPVC or thermally-broken aluminium frame, PAS 24:2022 certification, multi-point locking on master leaf + top and bottom shoot-bolts on slave, 28mm A-rated sealed unit with laminated inner (Part K compliant below 800mm), 15mm low-profile threshold, anti-lift bar, hinge bolts, 10-year cylinder guarantee.
Windows and doors in Westminster - local context
Georgian squares (Belgravia, Mayfair), Regency terraces around Pimlico and Marylebone, Edwardian mansion blocks in Marylebone and Bayswater, plus modern glass-fronted apartments around Victoria and Nine Elms.
Dominant era of housing stock: Georgian and Regency terraces, Edwardian mansion blocks.
Heritage note: Westminster has 55 conservation areas and thousands of listed buildings - almost any street-facing frame change needs council consent, and works in Belgravia or Mayfair require the tightest specifications.
- Mayfair
- Marylebone
- Belgravia
- Pimlico
- Victoria
- Paddington
- Soho
Postcodes we cover in Westminster
- SW1
- W1
- WC1
- WC2
- W2
- NW1
- NW8
Not seeing your postcode? Request a quote anyway - we likely still cover it.