French doors in Portsmouth
From £1,300
| Service | Typical price in Portsmouth |
|---|---|
| UPVC double glazed windows | £464 - £927 |
| Sash windows (UPVC & timber) | £927 - £2,472 |
| French & patio doors | £1,339 - £3,296 |
| Bay & bow windows | £1,648 - £3,914 |
| Secondary glazing | £361 - £979 |
French doors for Portsmouth homes without the coastal wear
The compact terraced streets of Fratton, Milton and Copnor rarely have room for a bifold, but a set of French doors onto the rear garden is one of the most popular upgrades in the city. Legacy Windows sends your sizing brief to three Portsmouth door specialists who quote a fixed supply-and-fit price using UPVC, engineered timber or a slim aluminium set.
Why locals in Portsmouth choose Legacy Windows
- Typical 2026 pricing runs from £1,340 for a compact UPVC pair to £3,295 for a wide aluminium set with a low threshold.
- All matched fitters are FENSA or CERTASS registered, so the Part L notice reaches building control automatically.
- Marine-grade stainless steel hinges and espagnolette locking are specified as standard, since salt air corrodes chromed hardware within a couple of winters.
- Threshold heights are quoted against Approved Document M, with a 15 mm accessible option available on request.
- Every glazed leaf uses laminated safety glass to Part K, keeping the door intact if the pane is struck.
Areas we cover around Portsmouth
The comparison service reaches every PO postcode from PO1 in Old Portsmouth to PO6 in Cosham. French door briefs are heaviest in Milton, Copnor and Drayton where interwar semis have larger back gardens, and in Cosham where postwar semis have room for a wider set. Requests from Havant, Waterlooville, Gosport and Fareham are handled by the same Hampshire panel.
Frequently asked questions
Do French doors need planning permission in Portsmouth? Not usually if they replace an existing back door or a window on a rear elevation under permitted development. Old Portsmouth, Southsea and other conservation areas often carry Article 4 directions that remove those rights, so a call to Portsmouth City Council planning is worth the ten minutes.
What is the best hardware for a set of French doors this close to the sea? Stainless steel A4 grade hinges and cylinders, plus a multi-point espagnolette lock with an anti-snap cylinder. Every quote on our panel includes marine-grade fittings for PO postcodes as a matter of course.
How wide can a French door pair go before I should consider sliders or bifolds? Around 1800 mm is the practical maximum for a French door pair. Above that, sliders and bifolds carry the glass more easily and give a wider clear opening.
Windows and doors in Portsmouth - local context
Terraced streets across Southsea and Fratton, Victorian villas in Old Portsmouth, plus postwar rebuild in the docks area after heavy WWII bombing.
Dominant era of housing stock: Victorian to Edwardian, plus significant postwar reconstruction.
Heritage note: 23 conservation areas including Old Portsmouth and Southsea.
- Southsea
- Old Portsmouth
- Cosham
- Drayton
- Milton
Postcodes we cover in Portsmouth
- PO1
- PO2
- PO4
- PO5
- PO6
Not seeing your postcode? Request a quote anyway - we likely still cover it.