Solar Panel Installation in Cardiff — Done Right, First Time
GL Solar is Cardiff's leading solar panel installation company, serving homeowners and businesses across South Wales since our founding. As a fully MCS certified installer, every solar panel system we fit qualifies you for the Smart Export Guarantee (SEG) — meaning you get paid for the excess energy you generate.
Our Cardiff-based team handles everything from the initial free survey and system design through to installation, grid connection and aftercare. We use only tier-1 solar panels from trusted manufacturers, ensuring your system delivers maximum output for 25+ years.
Whether you're in Roath, Pontcanna, Canton, Llandaff or anywhere across the Cardiff area, our local engineers are on hand to provide a fast, professional service with no hidden costs.
What's Included
Free Home Survey
We visit your property to assess roof suitability, orientation and shading before recommending a system.
Custom System Design
Bespoke solar system designed around your energy usage, roof space and budget.
Full Installation
Our qualified electricians handle all mounting, wiring and inverter installation.
Grid Connection & DNO
We manage all Distribution Network Operator (DNO) paperwork and grid connection.
MCS Certification
Every installation is MCS certified — essential for SEG payments and warranties.
Aftercare & Support
Ongoing monitoring support and a dedicated aftercare team based in Cardiff.
Our Process
Free Survey & Quote
We visit your Cardiff home, assess your roof and energy usage, and provide a detailed free quote — no obligation.
System Design
Our engineers design a bespoke solar system optimised for your roof orientation, shading and energy needs.
Scaffolding & Preparation
We arrange all scaffolding and prepare your roof for installation, ensuring everything is safe and compliant.
Panel & Inverter Installation
Our NAPIT-approved electricians fit your solar panels, inverter and all associated wiring to the highest standard.
Grid Connection
We handle all DNO notification and grid connection paperwork so your system is fully legal and ready to export.
Handover & Monitoring Setup
We walk you through your new system, set up monitoring and register your MCS certificate for SEG payments.
Why Choose GL Solar Cardiff?
MCS Certified
Required for SEG payments — we're fully certified and registered.
Cardiff Based
Local team, fast response, no call-out charges across South Wales.
NAPIT Approved
All electrical work is carried out by NAPIT-approved electricians.
Transparent Pricing
No hidden costs. Detailed quotes with everything included upfront.
5-Star Rated
Consistently 5-star reviews from Cardiff homeowners on Google and Facebook.
10+ Years Experience
Over a decade of solar and electrical experience across South Wales.
“GL Solar installed our 4kW system in Pontcanna last spring. The whole process was seamless — from the free survey to the final handover. Our bills have dropped massively and we're already earning from the SEG. Couldn't recommend them more highly.”
Frequently Asked Questions
Areas We Cover in Cardiff & South Wales
GL Solar provides Solar Panel Installation services across Cardiff and the wider South Wales region. Whether you're in the city centre or the surrounding valleys, our local team is ready to help.