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Solar Panel Installation

Solar Panel Installation Cardiff

Expert solar panel installation for Cardiff homes and businesses. MCS certified, NAPIT approved, and trusted by 500+ South Wales customers. Free survey within 48 hours.

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. 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 and export back to the grid. If you're searching for 'solar panel installation near me Cardiff' or 'solar installer near me', you've found your local experts.

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 — JA Solar, Jinko, REC, LONGi and Canadian Solar — ensuring your system delivers maximum output for 25+ years. All electrical work is carried out by NAPIT-approved electricians to the highest safety standards.

Whether you're in Roath, Pontcanna, Canton, Llandaff, Whitchurch, Cyncoed or anywhere across the Cardiff area, our local engineers are on hand to provide a fast, professional service with no hidden costs. Searching for 'solar panel installation near me Cardiff'? You've found your local specialists covering all CF postcodes.

Cardiff's housing stock is wonderfully varied — from Victorian terraces in Cathays and Roath to modern new-builds in Pontprennau and St Mellons. We have extensive experience with every property type and roof style across the city, meaning we can design and install the perfect solar system for your specific home, whatever its age or construction.

Solar panel installation in Cardiff delivers an exceptional return on investment in 2025. With electricity prices at record highs, a typical 4kW system saves £600–£1,000 per year on energy bills, plus earns £40–£225 annually through the Smart Export Guarantee. Over a 25-year lifetime, that's £16,000–£30,000 in total savings. And research shows solar panels add an average of £1,891 per kW to your property value — a 4kW system could add £7,500+ to your Cardiff home.

Solar Panel Installation

What's Included

Free Home Survey

We visit your Cardiff property to assess roof suitability, orientation, shading and structural condition before recommending a system. Free within 48 hours.

Custom System Design

Bespoke solar system designed around your energy usage, roof space, orientation and budget using industry-leading design software.

Full Installation

Our NAPIT-approved electricians handle all mounting, wiring, inverter installation and consumer unit connections across Cardiff.

Grid Connection & DNO

We manage all Distribution Network Operator (DNO) paperwork and grid connection notifications — no hassle for you.

MCS Certification

Every installation is MCS certified — essential for SEG payments, warranties and government incentives.

Aftercare & Support

Ongoing monitoring support and a dedicated aftercare team based in Cardiff. We're always here if you need us.

Our Process

1

Free Survey & Quote

We visit your Cardiff home, assess your roof, energy usage and shading, and provide a detailed free quote — no obligation, no pressure.

2

System Design

Our engineers design a bespoke solar system optimised for your roof orientation, shading profile and energy needs, with projected savings and payback period.

3

Scaffolding & Preparation

We arrange all scaffolding and prepare your roof for installation, ensuring everything is safe, compliant and ready for the installation team.

4

Panel & Inverter Installation

Our NAPIT-approved electricians fit your solar panels, inverter and all associated wiring to the highest standard, typically in 1–2 days.

5

Grid Connection

We handle all DNO notification and grid connection paperwork so your system is fully legal, compliant and ready to export surplus energy.

6

Handover & Monitoring Setup

We walk you through your new system, set up your monitoring app and register your MCS certificate for SEG payments. You're ready to start saving.

Why Choose GL Solar Cardiff?

MCS Certified

Required for SEG payments and government incentives — we're fully certified and registered.

Cardiff Based

Local Cardiff team, fast response, no call-out charges across all CF postcodes and South Wales.

NAPIT Approved

All electrical work is carried out by NAPIT-approved electricians to the highest safety standards.

Transparent Pricing

No hidden costs. Detailed quotes with everything included upfront — panels, inverter, mounting, wiring and all paperwork.

5-Star Rated

Consistently 5-star reviews from Cardiff homeowners on Google, Checkatrade and Facebook.

10+ Years Experience

Over a decade of solar and electrical experience across South Wales — 500+ completed Cardiff installations.

“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 every month. Couldn't recommend them more highly to anyone in Cardiff.”

James & Sarah T.
Pontcanna, Cardiff

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.

CardiffNewportBarryPenarthCaerphillyPontypriddBridgendLlantrisantRhooseCowbridgeVale of GlamorganRhonddaMerthyr TydfilSwansea

Get Your Free Solar Panel Installation Quote in Cardiff

Join 500+ Cardiff homeowners already saving money with GL Solar. Free survey within 48 hours, no obligation, no hidden costs. Call 07908 472187 or get a quote online. Covering all CF postcodes and South Wales.

Cardiff Solar Benefits

Why 2025 Is the Best Year for Solar Panel Installation in Cardiff

Record electricity prices make solar more valuable than ever. With the average Cardiff household paying over £2,000 per year for electricity, a 4kW solar panel installation can cut your bill by 30–50% immediately — and by 60–80% with battery storage.

Solar panel costs are at an all-time low. Panel prices have fallen by over 80% in the past decade, and installation costs in Cardiff are highly competitive. A typical 4kW system now costs £5,000–£8,000 — down from £12,000+ just five years ago.

The Smart Export Guarantee (SEG) pays you for surplus energy. Unlike the old Feed-in Tariff, the SEG gives you flexibility to choose the best-paying energy supplier for your exports. Some suppliers offer up to 15p per kWh — meaning a typical Cardiff system earns £150–£225 per year from exports alone.

Property value increase is a major bonus. Research consistently shows solar panels add £1,891 per kW to UK home values. For a 4kW system, that's approximately £7,500 added to your Cardiff property — a significant uplift that makes solar one of the best home improvements you can make.

£7,500
Added Property Value (4kW)
£1,000
Max Annual Bill Savings
6–8 yrs
Typical Payback Period
25 yrs
Panel Performance Warranty
500+
Cardiff Installations Completed
15p
Best SEG Rate per kWh
All Property Types

Solar Panel Installation for Every Cardiff Property Type

From Victorian terraces to modern new-builds, we design and install solar panels for every property type across Cardiff and South Wales.

Victorian & Edwardian Terraces

Roath, Canton, Cathays, Pontcanna, Grangetown, Splott

South-facing rear roofs on Cardiff terraces are ideal for solar panel installation. We maximise generation from compact roof spaces using high-efficiency 400W+ panels.

Semi-Detached Homes

Whitchurch, Rhiwbina, Llanishen, Heath, Penylan, Ely

Semi-detached homes across Cardiff typically have excellent roof space and orientation for solar panel installation, with front and rear roofs available.

Detached Houses

Llandaff, Cyncoed, Lisvane, Pontprennau, Creigiau, Wenvoe

Detached homes offer the most roof space. We design larger 5–8kW solar panel installations for maximum generation and self-sufficiency.

New-Build Properties

Pontprennau, St Mellons, Llanrumney, Trowbridge, Pentwyn

New-build homes are ideal for solar panel installation. Modern consumer units and clean roof lines make installation straightforward and efficient.

Bungalows

Penarth, Barry, Rhoose, Sully, Dinas Powys, Cowbridge

Bungalows have large roof areas relative to floor space, making them excellent candidates for solar panel installation with battery storage.

Period Properties

Llandaff, Pontcanna, Roath Park, Cyncoed, St Fagans

We have extensive experience with period properties in Cardiff, including listed buildings where specialist planning advice may be needed.

Local Solar Panel Installers

Solar Panel Installation by Area

We provide expert solar panel installation across Cardiff and South Wales. Click your area for a dedicated local page with area-specific information and free quote.