How much do solar panels cost?
See how many panels fit your own roof
Enter your address. We read your roof from aerial imagery, so there is no photo and no measuring, and price the system that fits.
Free · No photo needed · No sales call
By system size
| Panels | System size | Fitted, scaffolding included |
|---|---|---|
| 8 panels | 3 kW | £4,700 – £5,300 |
| 10 panels | 3.75 kW | £5,800 – £6,500 |
| 12 panels | 4.5 kW | £7,000 – £7,800 |
| 16 panels | 6 kW | £9,200 – £10,300 |
Installing solar panels is zero-rated for VAT until 31 March 2027, so there is no VAT to add to these figures. From 1 April 2027 the rate is 5% and the same system will cost a little more.
What decides the price
Mostly the size of the system, which is set by how much of your roof faces the sun. Each panel adds to the cost, but the scaffolding and the setting up are paid once, so a larger system costs less per panel.
Then the company. As with windows, the same system can be quoted at quite different prices by different installers, which is why the figure is a range.
A battery is a separate decision with its own price: see what solar panels cost with a battery.
What is included in these prices
The panels and their fitting, the scaffolding to reach the roof, and VAT at the rate that applies today.
Not included: a battery, an EV charger, roof repairs, anything structural.
Planning estimate or quotation?
Every figure on this page is a planning estimate: what a system like this typically costs, for budgeting and for judging the quotes you get. It is not a quotation. A quotation comes from an installer after a survey, when your roof, your wiring and any shading are known.
Facet Pro narrows the estimate to your own roof from aerial imagery: enter your address and we count the panels that fit the slopes facing the sun. Your installer confirms the system and price on site.
Solar cost guides
Common questions
How much do solar panels cost in the UK?
About £5,800 to £6,500 for a 10-panel, 3.75 kW system, fitted with scaffolding included.
How much does one solar panel cost?
On a 10-panel system, about £580 to £650 a panel once fitting and scaffolding are shared out. Panels are rarely bought one at a time.
Is there VAT on solar panels?
Installing solar panels is zero-rated for VAT until 31 March 2027, so there is no VAT to add to these figures. From 1 April 2027 the rate is 5% and the same system will cost a little more.
Do these prices include a battery?
No. A battery is priced separately and listed beside the system, never added into it.
How much will solar panels save me?
We do not estimate savings. They depend on how much electricity you use and when, your tariff, and how your roof faces, and a figure that ignores those would not be worth having. Ask an installer for a performance estimate for your own roof.
Your roof isn’t average.
See how many panels fit your own roof, with a planning estimate. Any figure on this page is for a typical roof. Enter your address and we read your roof from aerial imagery: which slopes face the sun, how steep they are and how much room they have.
Free · No photo needed · No sales call
Your address is sent to Google to find your roof. We do not keep it. Privacy
These are planning estimates — not a quotation, and not a survey. Solar figures come from an installer price list checked against government solar cost data, with scaffolding included and VAT at the rate that applies today. They do not estimate what panels will save. Your installer confirms the system and price on site. Prices checked November 2026.