Home improvement costs in Southampton
Prices in Southampton run about 12% above the UK average. Strong demand and overspill from London keep day rates high, though materials and waste costs are close to the national average.
- REGION
- South East
- COST INDEX
- 112 / 100 UK
- POPULATION
- 253,000
What each job costs in Southampton
National averages adjusted for South East labour and materials rates.
Bathrooms
£4,500 – £13,500
Bathrooms in Southampton · 7–14 days
See the Southampton breakdownKitchens
£6,700 – £33,500
Kitchens in Southampton · 2–4 weeks
See the Southampton breakdownBoilers
£2,200 – £6,200
Boilers in Southampton · 1–3 days
See the Southampton breakdownAir Conditioning
£1,700 – £9,000
Air Conditioning in Southampton · 1–2 days per unit
See the Southampton breakdownSolar Panels
£4,500 – £15,500
Solar Panels in Southampton · 2–4 days
See the Southampton breakdownRoofing
£1,700 – £22,500
Roofing in Southampton · 3 days – 3 weeks
See the Southampton breakdownExtensions
£33,500 – £134,500
Extensions in Southampton · 12–24 weeks
See the Southampton breakdownLoft Conversions
£28,000 – £89,500
Loft Conversions in Southampton · 6–10 weeks
See the Southampton breakdownDriveways
£2,200 – £13,500
Driveways in Southampton · 3–10 days
See the Southampton breakdownWindows
£3,400 – £17,000
Windows in Southampton · 1–3 days
See the Southampton breakdownElectrical
£340 – £9,000
Electrical in Southampton · 1 day – 2 weeks
See the Southampton breakdownPlumbing
£130 – £6,700
Plumbing in Southampton · Same day – 1 week
See the Southampton breakdownLandscaping
£1,700 – £28,000
Landscaping in Southampton · 1–4 weeks
See the Southampton breakdownFlooring
£670 – £9,000
Flooring in Southampton · 2–5 days
See the Southampton breakdownPainting & Decorating
£450 – £6,700
Painting & Decorating in Southampton · 2 days – 2 weeks
See the Southampton breakdownHousing stock in Southampton
Victorian terraces in Portswood and Shirley with a large student and HMO market. Rewiring and bathroom refits are the highest-volume job types.
Common postcodes covered: SO14, SO15, SO16, SO17.
Planning and building control
Building regulations applications and planning permission in Southampton are handled by Southampton City Council. Most internal refits fall under permitted development, but new electrical circuits, structural openings, boiler installations and anything affecting a party wall need notification or sign-off before the work is signed off as compliant.
Always check whether your property sits inside a conservation area or has an Article 4 direction — both remove permitted development rights that most homeowners assume they have.
Get a Southampton estimate in two minutes
Add photos and we'll break down labour, materials and timelines using South East rates — then match you with up to 3 vetted local professionals.
Start your free quote