UPVC double glazed windows in Portsmouth
From £450
| 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 |
UPVC windows for Portsea Island and beyond
Salt spray, exposure and terraced streets on a compact island footprint make Portsmouth a specific brief for any window installer. Legacy Windows connects homeowners in Southsea, Fratton, Cosham and Drayton with FENSA or CERTASS registered fitters who quote a fixed supply-and-fit price, calibrated to Portsmouth’s slightly above-average coastal trade rates.
Why locals in Portsmouth choose Legacy Windows
- Typical 2026 pricing sits between £465 and £925 per casement supplied and fitted, adjusted for Portsmouth’s marine-grade hardware requirements.
- Stainless steel hinges and locking cylinders are specified as standard on our panel, since chromed steel tends to pit within two winters in PO4 and PO5.
- FENSA or CERTASS registration means the building control notice and certificate are handled without a separate application.
- Every unit hits Part L 2022 at a whole-window Uw of 1.4 W/m2K or better, and trickle vents meet Part F where required.
- No cold calls, no anchored prices, three like-for-like written quotes inside a week.
Areas we cover around Portsmouth
The comparison service reaches across PO1, PO2, PO4, PO5 and PO6, covering Southsea, Old Portsmouth, Fratton, Cosham and Drayton. Milton and Copnor generate a heavy volume of Victorian terrace briefs, and Cosham and Drayton on the mainland see more interwar and postwar semis. Requests from Havant, Gosport and Fareham reach the same Hampshire installer panel rather than being passed on to a national outfit.
Frequently asked questions
Are UPVC windows suitable for Portsmouth’s coastal exposure? UPVC handles salt air well, and 70 mm profiles with steel reinforcement stay stable on exposed elevations. The hardware is what matters most: stainless steel hinges, locks and friction stays are worth insisting on, and every quote on our panel specifies them for PO postcodes.
Do I need permission in Old Portsmouth or Southsea’s conservation areas? Portsmouth has around twenty-three conservation areas including Old Portsmouth and parts of Southsea. UPVC on the front elevation is often refused, though rear replacements are usually allowed. Article 4 directions across parts of Southsea remove permitted development rights, so check with Portsmouth City Council.
How long is the FENSA guarantee? FENSA installations carry a ten-year Insurance Backed Guarantee via a third-party underwriter. It covers the workmanship and the frames if the fitter ceases trading.
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.