Get an instant estimate based on your home, roof type, and whether you want battery storage — based on real 2026 UK installation pricing. Then get exact quotes from MCS-certified installers near you.
Use our solar savings calculator to estimate annual bill savings and payback time.
Solar installation cost in the UK is driven mainly by system size (how many panels you need), roof type, and whether you add battery storage. Labour, scaffolding, and your inverter choice also play a part, but these vary less than the headline factors below.
These are ballpark figures to help you budget — your exact price depends on a survey of your specific roof, shading, and consumer unit. Getting 2-3 quotes from MCS-certified installers is the only way to know your real cost.
| Home size | Typical system | Installed cost (no battery) | With 5kWh battery |
|---|---|---|---|
| 1-2 bed flat/terrace | 3.5kW | £5,000 – £6,200 | £7,500 – £9,000 |
| 3 bed semi | 4.5kW | £6,200 – £7,800 | £8,700 – £10,500 |
| 4 bed detached | 5.5kW | £7,500 – £9,200 | £10,000 – £12,000 |
| 5+ bed large detached | 6.5kW+ | £9,000 – £11,500 | £11,500 – £14,500 |
Figures based on typical 2026 UK installer pricing including 0% VAT. Flat or slate roofs typically add 10-15% to these figures. A 10kWh battery typically adds £1,500-£2,000 more than the 5kWh prices shown.
A typical home solar system costs between £5,000 and £10,000 fully installed, depending on system size. A standard 4.5kW system for a 3-bedroom semi-detached house typically costs around £6,500 to £8,000 before any battery storage.
A home solar battery typically adds £2,500 to £5,000 to the total cost, depending on capacity. A 5kWh battery suits most households, while larger homes with higher evening usage may want 10kWh or more.
Yes. Pitched roofs with standard tiles are the cheapest to fit. Flat roofs need mounting frames which add cost, and slate or unusual roof types can require specialist fixings that increase labour costs.
Residential solar panel installations in the UK currently benefit from 0% VAT, which is already reflected in most installer quotes, making solar more affordable than the headline product price might suggest.