Solar Quote Checker
You have a quote. You have no idea whether it is fair. Check it against the government's own installed-cost data in about a minute — no email, no phone number, no sales call.
How do I know if my solar quote is a good price?
Work out the cost per kWp — total price divided by system size — and compare it against installed costs for your region. In 2025/26 the DESNZ regional mean ranges from about £1,878/kW in North East to £2,177/kW in the dearest regions, a spread of around 16%. A quote above that range is not automatically bad — scaffolding, roof complexity and premium equipment all cost more legitimately — but you should know where you sit and what to ask. This tool does the comparison for you.
Enter what is on your quote. Nothing is required beyond the price, the system size and your region — no email or phone number. You will see the result immediately.
Why most quote comparisons are wrong
Comparing headline totals tells you nothing, because two quotes are almost never for the same thing. A £9,000 quote for 5.5kWp with a battery is not comparable to a £7,500 quote for 4kWp without one. Cost per kWp, with storage separated out, is the only number that lets you compare across quotes.
The second problem is the benchmark itself. Most "average solar cost" figures online are either out of date, quote cash prices without adjusting for inflation, or silently mix incompatible measures. We use the DESNZ dataset, state which measure we are using, and convert it properly before comparing — the detail is set out under the result.
What we will not tell you
We will not call your quote a rip-off. We have not seen your roof, your access, your consumer unit or your scaffolding requirement, and any tool that renders that verdict from six numbers is guessing.
What we will do is tell you where your quote sits relative to a defensible benchmark, flag anything in the specification worth questioning, and give you the questions to put to your installer. That is a genuinely stronger position than a verdict, because it is one you can act on.
Data and method
Benchmark from Department for Energy Security and Net Zero (DESNZ), Solar photovoltaic (PV) cost data, derived from the Microgeneration Certification Scheme (MCS) Installation Database. Published under the Open Government Licence v3.0. Latest release 2026-05-28; verified 2026-08-07. Full series, regional breakdown and methodology on our UK Solar Price Observatory.