Double glazing cost in Southampton (2026)
Real 2026 prices for Hampshire homeowners · uPVC from £460/window · around 2% above UK national average
What homeowners in Southampton typically pay
Southampton and the surrounding Hampshire area sit around 2% above the UK national average for double glazing. SO14 Old Town has significant medieval stone-walled buildings.
| Property type | Windows | uPVC total | Aluminium total |
|---|---|---|---|
| Flat / apartment (SO) | 3-5 | £1,550 – £2,850 | £2,200 – £4,050 |
| 2-bed terrace (Portswood, St Denys, Polygon) | 6-8 | £2,850 – £5,800 | £4,050 – £8,250 |
| 3-bed semi (Bitterne, Shirley, Bassett) | 8-10 | £3,900 – £7,950 | £5,550 – £11,300 |
| 4-bed detached (Bassett, Chilworth, Highfield) | 10-14 | £5,700 – £11,950 | £8,100 – £16,950 |
Southampton housing stock considerations
- Victorian terraces (common in Portswood, St Denys, Polygon): often require sash-style windows to match original character — 40-60% more than casement uPVC
- 1930s semis (Bitterne, Shirley, Bassett): standard casement style — the most cost-effective replacement
- Conservation areas (Old Town, Polygon, Bassett Wood): may require planning permission and wooden frames — budget +30-60%
- Detached properties (Bassett, Chilworth, Highfield): typically 10-14 windows; aluminium is a common choice for modern detached stock
Local planning considerations
Southampton is covered by Southampton City Council. FENSA handles Building Regs notification automatically. You receive your FENSA certificate within 10 working days of install. For conservation-area work you may need additional planning consent (free pre-check available).
Average savings via comparison
Southampton homeowners using Findfitter save an average of £1,750 compared to accepting a single national-chain quote. Spread between cheapest and most expensive quote for identical spec is typically £2,050 – £3,250 in SO-postcodes.
Get quotes from Southampton fitters
Enter your postcode to start — up to 4 vetted Southampton installers respond within 24 hours.
Southampton double glazing — homeowner FAQs
Do I need planning permission in Southampton?
Most like-for-like replacements don’t need planning permission — your FENSA-registered installer handles Building Regs compliance automatically. For work in conservation areas (Old Town, Polygon, Bassett Wood), Article 4 directions may apply to front-elevation changes. Check with your council before ordering.
Are Southampton installers FENSA-registered?
Yes — every installer Findfitter matches must be FENSA-registered (or equivalent). You receive a 10-year insurance-backed guarantee and automatic compliance notification with every install.
Can I get grants for double glazing in Southampton?
Qualifying households may receive fully funded or subsidised windows via ECO4. See our ECO4 guide.
How long does installation take in Southampton?
A typical Southampton semi with 8-10 windows is fitted in 1-2 days by a two-person team. Lead time from order to install is typically 4-6 weeks for standard uPVC, 6-8 weeks for aluminium, and 8-12 weeks for heritage sash.
Why is Southampton around 2% above the UK average?
Regional labour rates, local installer competition, and proximity to UK uPVC and aluminium fabricators all factor in. Southampton’s position reflects higher labour rates typical of the region.
Sources & references
- FENSA installer register
- Energy Saving Trust — windows advice
- British Fenestration Rating Council (BFRC)
- GOV.UK — ECO4 scheme
- Southampton City Council — planning
From homeowners like you
Replaced 8 windows in our 1930s semi in Didsbury. Quotes came within 6 hours. Winter gas bill is down about 38%. Fitter was spotless and finished in a day and a half.
Victorian terrace in Headingley — needed sash-style to match the street. Found a heritage specialist locally via Findfitter, otherwise I'd never have known they existed. Beautiful work.
Replaced 3 windows and the front door after our L-postcode terrace survey. The FENSA installer spotted a lintel issue the others missed and priced the proper fix in. Job done.