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Solar panel installation costs in the UK depend on system size, panel brand, roof type, and whether battery storage is included. This guide covers 2026 day rates for solar installers, what a full system installation costs, and what you need to look for in an MCS-certified installer.
Hourly rate
£25–£55
per hour
Day rate
£200–£450
per day
Call-out
£75–£150
minimum charge
Rates vary considerably across the UK. Here's what you can expect to pay in each region.
* Rates are typical market averages for 2026 based on industry survey data. Individual rates vary by experience, job type, and other factors.
Several factors determine how much a solar panel installer will charge for a job.
Solar installers must be MCS (Microgeneration Certification Scheme) certified to qualify customers for the SEG (Smart Export Guarantee) and access grants. MCS installers charge a premium but the certification is essential for legal grid connection.
A typical domestic system is 3.5–6kW (8–16 panels). Larger systems cost more in labour. A 4kW install takes 1–2 days; a 10kW commercial system may take 3–5 days.
Adding battery storage (Powerwall, GivEnergy, SolarEdge) adds £2,000–£6,000 to the total cost and typically 0.5–1 extra day of installation time.
Flat roofs, slate tiles, and complex roof geometries (hips, valleys) add installation time. Ground-mounted systems also require groundwork in addition to electrical installation.
Systems above 3.68kW require a G99 application to the Distribution Network Operator (DNO). This paperwork process can take 11 weeks and may be charged separately by the installer.
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A fully installed 4kW solar panel system in the UK costs £4,000–£6,500 in 2026, including panels, inverter, mounting, and electrical installation. A 6kW system with battery storage costs £8,000–£12,000. Labour typically accounts for £1,500–£2,500 of the total.
A solar panel installer day rate in the UK is £200–£450/day in 2026. MCS-certified installers in London and the South East charge £320–£560/day. Most domestic solar jobs take 1–2 days for a standard roof-mounted system.
Yes, for any customer wanting to claim the Smart Export Guarantee (SEG) or access government grants, the installer must be MCS certified. Non-MCS installers cannot register systems with the DNO for grid export. Always check MCS certification before hiring.
A standard domestic solar installation (4–6kW, 10–16 panels) takes 1–2 days. This includes roof mounting, wiring, inverter installation, and grid connection. Systems with battery storage add 0.5–1 day. Scaffolding is typically pre-erected the day before.
The SEG is a UK government scheme requiring energy suppliers to pay households for surplus electricity exported to the grid. Rates vary by supplier (3–15p/kWh in 2026). To qualify, the system must be MCS-certified and under 5MW. The SEG replaced the Feed-in Tariff in 2020.
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