Solar installers · Cardiff

Solar installers in Cardiff.

Find listed solar installers covering Cardiff and South Wales — across 35 CF postcode districts. The Welsh capital gets solid southern light, and most of its roofs are straightforward to fit.

Listed installers

Covering Cardiff & South Wales.

Featured listings are clearly marked. Solarable is a paid directory; we don't rank or endorse installers.

A.M.E Electrical Ltd

Merthyr Tydfil Industrial Park, Pentrebach · Wales

Solar PV

View profile

Check your roof

A Solarable Report shows your likely roof direction, a Solarable Score, and listed installers covering your postcode.

By the numbers

Cardiff solar, measured.

Typical yearly generation, per kW of panels

≈1,032 kWh per kWp a year — roughly 10% above the UK average

For every kilowatt of panels, a well-placed Cardiff roof generates about this much a year. Your own total depends on roof direction, pitch and shading — the roof check estimates it for your address.

How the sun falls across the year

Best month · June ~130 kWh

Quietest · December ~35 kWh

Apr–Sep share ~69%

Sunlight peaks in summer and dips in winter — a system is sized for the whole year, not just the peak. Estimated from PVGIS climate data for your postcode area; a roof survey confirms your exact figure.

Solar resource data: © European Union, 2025, PVGIS, EU Science Hub.

1 MCS-certified installer covers Cardiff in our directory.

Sun figures from PVGIS; roof estimates include solar data from Google. How we measure.

Local context

Solar in Cardiff: quick guide.

Cardiff has good solar fundamentals — South Wales gets more sun than much of the country, and the city's housing is mostly straightforward to fit. The main local nuance is the split between dense Victorian terraces in the inner city and the more open suburban and valleys stock beyond it.

A few Cardiff-specific things worth knowing:

Solid southern light. The CF area sits above the UK average for irradiation — a well-oriented roof here produces more than the same roof in the north.
Inner-city terraces. Cathays, Roath and Grangetown are terrace country, where the street's direction sets the system. East or west still works well.
Conservation areas. Parts of the centre, Llandaff and the older suburbs are conservation areas; listed or street-visible roofs there can need consent.
Suburbs and valleys. The outer suburbs and the valley towns have more open, simple roofs that suit a full-sized system and battery.
Battery storage. With time-of-use tariffs spreading, it's worth running the numbers through the savings calculator.

Grants & support

What help is available in Cardiff?

Solar and battery installations across the UK are currently zero-rated for VAT until 31 March 2027 — a straight saving on the installed price for every household, with no application needed. In Wales, the Welsh Government's Nest scheme supports eligible households with home-energy improvements, alongside the GB-wide schemes.

Eligibility for grant schemes depends on your income, home and circumstances, and the schemes change. We keep the current picture on one page rather than guess what you'll qualify for.

See solar grants & funding

Common questions

FAQs about solar in Cardiff.

Is Cardiff a good place for solar panels?

Yes. South Wales gets decent sun — better than much of the north — and most Cardiff homes have a straightforward, unlisted roof. For a south-, east- or west-facing slope the fundamentals are strong. As always, the roof itself decides it: direction, pitch and shading. You can check yours from your postcode before you speak to an installer.

Are Cardiff terraced roofs suitable for solar?

Often, yes — it comes down to which way the roof faces. Areas like Cathays, Roath and Grangetown are full of Victorian terraces where each home has one main slope, so your street's orientation largely sets your system. An east- or west-facing terrace still performs well. The roof check tells you which way yours faces before an installer visits.

Are the planning rules different in Wales?

Slightly. Wales has its own planning system, but for most ordinary homes solar panels are permitted development much as in England. It's stricter for listed buildings and in conservation areas — parts of central Cardiff, Llandaff and the older suburbs. An installer who works Cardiff will know the local council's approach and the Welsh rules.

Which areas does this cover?

This page covers the whole CF postcode area — Cardiff plus the Vale of Glamorgan and the South Wales valleys, including Barry, Bridgend, Pontypridd, Aberdare, Merthyr Tydfil and Caerphilly. Listed installers usually cover a broad stretch of the region; check whether your nearest one covers your specific postcode district.

Are you a solar installer covering Cardiff?

Claim your free profile if we've already listed you — or add your company to the directory.

Claim your listing

Useful next steps.

Is my roof suitable for solar?

Direction-led explanation, with the quick roof check.

Open →

Solar savings calculator

Annual benefit and payback in honest UK ranges.

Open →

Can I get solar panels?

Top-of-funnel suitability check for UK homes.

Open →

For installers

Get a listed profile from £149/year (founding price).

Open →

Solar companies near me

Find listed installers covering your postcode, by area.

Open →