The cost of solar panels in the UK has fallen sharply over the last decade, but prices have nudged up again with inflation and supply chain issues. As of 2025, you’re generally looking at £4,000–£10,000 for a typical domestic system without batteries.
These are ballpark figures for good‑quality, MCS‑certified installations (panels + inverter + labour) on a straightforward roof:
Add a home battery and you’ll usually add £2,500–£6,000 depending on size and brand. These ranges assume:
If your roof is complex, very high, or you need structural work, you’ll be towards the upper end (or beyond) these figures.
Answer a few quick questions, and we will send you a bespoke solar panel quote.
The key to judging the cost of solar panels is to look beyond the upfront spend.
For a typical 3–4 bedroom home with a 4 kW–5 kW system costing about £5,000–£7,000, you might see:
Over 25 years, total financial benefit can easily reach £10,000–£20,000+ in today’s money, especially if electricity prices continue to trend upwards. That’s why, even with a £6,000–£8,000 upfront cost, the long‑term return is often very strong.
The real question isn’t just “How much do solar panels cost?” but “What do they cost you net of savings over 20–25 years?”.
No two quotes are identical. Several practical factors drive the final cost of your solar installation.
The bigger the system, the more it costs overall but the lower the cost per kW tends to be.
Roof space is crucial. If you’ve got plenty of room, an installer can use more panels and spread the fixed costs (scaffolding, labour, paperwork) over a larger system, which improves value.
Your electricity usage also matters. There’s little point paying extra for a huge system if you’re out all day and don’t have a battery: you’ll just export most of it at a lower rate than you pay to import.
Answer a few quick questions, and we will send you a bespoke solar panel quote.
Not all panels are equal, and you do pay for quality and aesthetics.
A system using top‑tier premium panels might cost £800–£1,500 more than a similar‑sized system with value panels. You need to weigh the aesthetics, extra output, and long warranty against that extra cost.
The inverter (which turns DC power from your panels into AC power for your home) is the second most important bit of kit after the panels.
Expect the inverter (plus any optimisers) to make up 15–25% of your equipment cost.
Mounting systems, cabling, isolators, and monitoring equipment add a few hundred pounds but are essential for safety and longevity. Cheaper quotes sometimes cut corners here, something you don’t want on a system that sits on your roof for 25+ years.
Labour and scaffolding aren’t glamorous, but they’re a big part of what you pay:
You’ll often see London and the South East at the top end of price ranges, while some parts of the North and Scotland can be a bit cheaper. A very straightforward bungalow roof in the Midlands can come in notably cheaper than a tall Victorian terrace in inner London, even with the same equipment.
When you get your first solar quote, it can feel like a single big number with very little detail. You’re within your rights to ask for a breakdown.
Before anyone drills into your roof, an installer should:
Some companies do this using satellite imagery and photos: others still prefer a home visit. The cost of these surveys and design work is usually baked into the overall price, but it’s still a real cost, often a few hundred pounds’ worth of time and software.
