French & patio doors in London
From £1,300
| Service | Typical price in London |
|---|---|
| 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 |
French and patio door quotes for London gardens and terraces
Rear-garden extensions and side returns in Wandsworth, Hackney and Ealing are the busiest categories in London for French and patio doors, but wharf conversions in E14 and Nine Elms are close behind. Legacy Windows is a quote comparison service that matches you with installers already handling Building Regs sign-off for structural openings, threshold detailing on solid ground floors, and Part L glazed-area limits in London extensions.
Why locals in London choose Legacy Windows
- London-rate pricing: budget £1,625 to £4,000 for a fitted French, patio or three-panel bifold set on a standard opening
- Firms in our network handle the structural notice for widening an existing opening, common in Victorian rear returns
- Aluminium slimline options are quoted alongside UPVC for narrow slot openings in Georgian and Edwardian properties
- Threshold heights are checked against Part M ambulant-access rules on flat conversions
- Every quote breaks out door slab, frame, cill, threshold, glass spec and fitting so you can compare like for like
Areas we cover around London
We handle briefs from garden flats and terraces across SW11 Battersea, SW9 Brixton, SE15 Peckham, SE22 East Dulwich, N16 Stoke Newington and E8 London Fields, plus riverside apartments in E14 Canary Wharf and SW8 Nine Elms. Outer-borough demand is strongest in Bromley, Croydon, Richmond, Ealing and Enfield, where 1930s semis often want a three-metre bifold replacing a single back door.
Frequently asked questions
Do French doors need Building Regs approval in London? Replacing an existing door on a like-for-like opening is covered by FENSA or CERTASS self-certification. Widening the opening or removing a load-bearing wall triggers a Building Notice with your borough and structural calculations for the new lintel.
What is the difference between French doors, patio sliders and bifolds for London use? French doors are hinged pairs suited to narrow Victorian openings, patio sliders give clear glass on wider openings without swing space, and bifolds fully retract but need track depth and door-stacking room. Cost order for a 2.4m opening is typically French < patio < bifold.
Are aluminium doors overkill for a London garden extension? Aluminium slim frames maximise glazed area on a wide opening and match the sightlines architects specify on side returns. On narrower Victorian openings under 1.8m, UPVC French doors usually offer the better price-to-performance ratio.
Windows and doors in London - local context
Victorian and Edwardian terraces dominate inner boroughs, alongside interwar semis in outer London, 1960s-70s tower blocks, and modern glass-fronted apartments in redevelopment zones like Nine Elms and King's Cross.
Dominant era of housing stock: Victorian to Edwardian across inner London, interwar in outer boroughs.
Heritage note: London has over 1,000 conservation areas across 33 boroughs - always check with the local council planning portal before ordering.
- Islington
- Hackney
- Camden
- Wandsworth
- Greenwich
- Ealing
- Croydon
Postcodes we cover in London
- E1
- EC1
- N1
- NW1
- SE1
- SW1
- W1
- WC1
- W2
- N7
- SE15
- SW9
- E14
- E17
Not seeing your postcode? Request a quote anyway - we likely still cover it.