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One fixed price for the whole job — not the hours

Solar Panel Installation Fair Price

Typical trade: MCS solar installer. Move the sliders and answer the questions.

Describe the job or snap a photo — AI fills in the sizes

Battery storage
Roof

Fair fixed price for the whole job

£4,210

Fair range: £3,705 – £4,968

4.3 kWp system

Realistic time on site

1.1 days

Crew / total hours

3 · 24.0 h

Labour (24.0 h × £40)
£960
Materials
£2,700
Scaffolding
£550

Over £6,210? Ask why in writing.

  • Not MCS certified
  • Guaranteed 'payback' claims with no shading survey
  • Large deposit before delivery

Insist on

  • One written fixed price for the full scope — no open-ended hours.
  • Deposit of 10–20% at most; balance after you inspect the work.
  • Any extra work agreed and priced in writing before it starts.
  • A typical 4 kWp install is 1–2 days on site.
  • Needs MCS certificate and DNO notification to claim export payments.

Estimate for an experienced, insured tradesperson. Local prices vary — adjust the hourly rate for your area.

Calcurly.com area calculator showing dimensions, result, and cost breakdown

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About this calculator

Fair fixed price for rooftop solar PV, inverter and optional battery, with MCS sign-off. Answer a few questions, move the sliders, and get a brutally realistic time on site plus one fixed price for the whole job — so you can insist on a total rather than open-ended hours. Tradespeople can use it to quote fairly.

Frequently asked questions

How long should this job really take?
The calculator shows realistic on-site hours for an experienced, insured tradesperson working at a normal pace. Quotes far above the upper range deserve a written explanation.
Should I pay by the hour or a fixed price?
Agree a fixed written price for a clearly defined scope. Pay a small deposit (10–20% at most), staged payments on larger jobs, and the balance only after you have inspected the finished work.
What does the Solar Panel Installation Fair Price do?
Fair fixed price for rooftop solar PV, inverter and optional battery, with MCS sign-off. Fair fixed price for rooftop solar PV, inverter and optional battery, with MCS sign-off. Answer a few questions, move the sliders, and get a brutally realistic time on site plus one fixed price for the whole job — so you can insist on a total rather than open-ended hours. Tradespeople can use it to quote fairly.
Is the Solar Panel Installation Fair Price free to use?
Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.
How accurate is the Solar Panel Installation Fair Price?
Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified fair price home jobs professional before committing to a purchase or a job.
Can I embed the Solar Panel Installation Fair Price on my own website?
Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.
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