Solar Panel Installers in Cornwall
Browse 139 MCS certified solar panel installers in Cornwall. All installers listed below are verified on the MCS database. A 4kWp solar system in Cornwall generates approximately 4,320 kWh per year, with 0% VAT on residential installs. 82 installers have Google ratings, averaging 4.7/5.
Showing 24 of 139 installers in Cornwall
Naked Solar Ltd
bristol, cornwall, derbyshire +1 more
Harvest Renewables Cornwall Limited
cornwall
Coast to Coast Electrical Ltd t/a Coast to Coast Electrical
cornwall
I Spy Solar Ltd
cornwall, devon
Clean Earth Energy Limited
cornwall
Coastal Electrical & Renewable Solutions
cornwall
Happy Energy Solutions Ltd
cornwall, essex
Natural Generation Ltd
cornwall, devon
Atom Energy South West Limited
cornwall
Wired By Jessops
cornwall
SHINEY Electrical Ltd
cornwall
Simon Annear Plumbing & Heating Ltd
cornwall
Ignite Mechanical Electrical Solutions LTD
cornwall
How do you choose a solar panel installer in Cornwall?
Check MCS Certification
Only MCS-certified installers qualify you for the Smart Export Guarantee and 0% VAT on residential installs. Verify your installer on the MCS database. 139 installers serving Cornwall are currently certified.
Compare Multiple Quotes
Get at least 2–3 written quotes with itemised breakdowns. A typical 4kWp system in Cornwall costs £6,600–£8,500 including 0% VAT. Ensure quotes include panels, inverter, mounting, electrical work, and EPC assessment.
Verify Insurance & Warranties
Confirm public liability insurance and ask about workmanship warranty (minimum 5 years). Panel manufacturers typically offer 25-year performance guarantees and inverters come with 10–12 year warranties.
Read Customer Reviews
Check Google, Trustpilot, and Facebook reviews. Ask for references from recent installations in Cornwall. Look for detailed reviews mentioning communication, tidiness, and after-sales support.
Check Equipment Brands
Ask which panel and inverter brands are used. Tier 1 solar panel manufacturers (e.g. JA Solar, Trina, Canadian Solar) offer the most reliable long-term performance. Avoid quotes that don't specify equipment.
Confirm Paperwork Handling
A good installer helps with the DNO notification, MCS certification, and arranges the post-works EPC assessment. Ask whether these are included in the quoted price.
Solar Panels in Cornwall
Solar yield, savings calculator, and local data for Cornwall.
Solar Grants in Cornwall
Grants, incentives, and payback calculations for Cornwall.
Commercial Solar in Cornwall
Commercial solar installers, costs and tax relief for Cornwall businesses.
Other Renewable Energy Installers in Cornwall
Heat Pump Installers
MCS certified heat pump installers in Cornwall. Boiler Upgrade Scheme grants available.
Solar Thermal Installers
MCS certified solar thermal installers in Cornwall. 0% VAT on residential installs.
Biomass Installers
MCS certified biomass installers in Cornwall. Boiler Upgrade Scheme grants available.
EPC Assessors
Accredited EPC assessors in Cornwall. Get your Energy Performance Certificate.
EV Charger Installers
Approved EV charger installers in Cornwall. OZEV grant up to £350.
Solar Panels by Town in Cornwall
Frequently Asked Questions About Solar Installers in Cornwall
How do I find a good solar panel installer in Cornwall?
Check that the installer is MCS certified, as this is required to qualify for the Smart Export Guarantee and 0% VAT. Compare at least 2–3 quotes, ask for references from recent jobs in Cornwall, and verify they carry public liability insurance. Look for companies with Google or Trustpilot reviews and check they offer a workmanship warranty of at least 5 years alongside the panel manufacturer warranty (typically 25 years).
How much do solar panel installers in Cornwall charge?
A typical 4kWp residential installation in Cornwall costs £6,600–£8,500 including 0% VAT. Prices vary by installer, roof type (slate, tile, flat), scaffolding requirements, and whether a battery is included. Always get itemised quotes so you can compare like for like.
Are solar panel installers in Cornwall MCS certified?
Not all installers are MCS certified. You must use an MCS-certified installer to qualify for the Smart Export Guarantee and 0% VAT. MCS maintains a public database at mcscertified.com/find-an-installer/. On this page, 139 of the 139 listed installers are MCS certified. Look for the "MCS Certified" badge on each listing.
How long does solar panel installation take?
The physical installation is typically completed in 1–2 days for a standard residential system. The full process from initial quote to completed installation usually takes 4–8 weeks, including the DNO application, installer scheduling, and the post-installation EPC assessment.
Do I need to apply for anything before hiring an installer in Cornwall?
Your MCS-certified installer will handle the DNO (Distribution Network Operator) notification on your behalf. For the Smart Export Guarantee, you can apply with your energy supplier after installation is complete. Make sure your installer provides you with an MCS certificate, as this is required for SEG eligibility.
Get a Free Solar Quote
Connect with MCS-certified solar panel installers in Cornwall.
Sources
Last updated: August 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy