Solar Installers in Cardiff, UK
Top Solar Installers in Cardiff
Ranked by rating and customer reviews
EE Renewables
VerifiedMCS · NICEIC · NAPIT · TrustMark
Glow Green
VerifiedMCS · NICEIC · HIES
Green Energy Solar
VerifiedMCS · HIES · NAPIT
UPS Solar
VerifiedMCS · RECC
Urban Solar
VerifiedMCS
Cymru Solar
VerifiedMCS · NICEIC
Heatforce
VerifiedMCS
Celtic Green Energy
VerifiedMCS
InspireGreen
VerifiedMCS · NAPIT · TrustMark
Dec-Elec
VerifiedMCS
How We Rank Solar Installers
Our rankings combine verified customer reviews, certification status, years of experience, service range, and warranty coverage into a single SurgePV Score. Companies are ranked by this score, with featured installers shown first.
Customer Reviews
We aggregate ratings from Google, Trustpilot, and Checkatrade. Only companies with 4.0+ ratings and verified reviews are listed.
Certifications
MCS certification is the UK standard. We also check for RECC, TrustMark, NAPIT, NICEIC, and ISO 9001 accreditations.
Track Record
Years in business, projects completed, warranty coverage, and service range contribute to the overall score.
Why Trust the SurgePV Directory?
Every company listed here has been independently researched and verified. We check certifications against official registers, aggregate reviews from multiple platforms, and verify that every business is actively trading. Companies cannot pay to improve their ranking — placement is based on verified data only.
10
Verified Companies
2,489
Customer Reviews
Solar Installation in Cardiff
Cardiff offers strong potential for solar energy generation. UK solar irradiance levels, combined with falling panel costs and the Smart Export Guarantee, make solar a sound investment for homeowners and businesses across the city. A typical 4kW system generates between 3,400-4,200 kWh per year depending on roof orientation, pitch, and shading. South-facing roofs with a 30-35 degree pitch deliver the best performance.
When choosing a solar installer in Cardiff, look for MCS certification as a baseline requirement. This ensures the installation meets industry standards and qualifies you for the Smart Export Guarantee. Check installer reviews, ask for references from local projects, and compare at least three quotes before committing. Many installers in Cardiff also offer battery storage and EV charging solutions, allowing you to maximise your solar investment.
Also Serving Nearby
Find solar installers in other UK cities
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Solar Installation in Cardiff: Step by Step
Free Consultation
Contact an installer for a free site survey. They'll assess your roof, shading, and energy usage.
Design & Quote
Receive a detailed proposal with system size, expected generation, costs, and projected savings.
Installation
Scaffolding goes up, panels and inverter are installed. Most residential systems take 1-3 days.
Inspection
Building control sign-off, DNO notification, and MCS certificate issued for SEG eligibility.
Go Live
System is commissioned, monitoring is set up, and you start generating clean energy and saving money.
Frequently Asked Questions
How much do solar panels cost in Cardiff?
Solar panel costs in Cardiff are in line with UK averages. A 4kW residential system typically costs between £5,000 and £8,000 including installation. Prices may vary based on roof type, access, and the specific panels and inverter chosen. Get quotes from multiple MCS-certified installers in Cardiff to compare.
Who is the best solar installer in Cardiff?
The best solar installer in Cardiff depends on your specific needs, budget, and project type. Check installer ratings, reviews, certifications (especially MCS), and years of experience on this page. We recommend getting quotes from at least three installers to compare pricing and service.
How long does a solar panel installation take?
A standard residential solar installation takes 1-3 days for the physical installation work. However, the full process from initial survey to commissioning typically takes 4-8 weeks, including site assessment, design, scaffolding, installation, electrical connection, and DNO notification.
Do I need planning permission for solar panels in the UK?
Most residential solar installations in the UK fall under permitted development and do not require planning permission, provided the panels do not protrude more than 200mm from the roof surface and are not installed on a listed building or in a conservation area. Commercial installations and ground-mounted systems may require planning approval.
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