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Solar installers · Swansea

Solar installers in Swansea.

Find listed solar installers covering Swansea across 12 SA postcode districts, including the Neath and Port Talbot core. Every firm is MCS-certified and checked before we list them.

Listed installers

Covering Swansea.

Every installer here is MCS-certified and checked before we list them. We don't rank or endorse, and featured listings are clearly labelled.

Two certified installers fitting a solar panel on a tiled UK roof
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By the numbers

Swansea solar, measured.

Typical yearly generation, per kW of panels

≈1,042 kWh per kWp a year — roughly 10% above the UK average

For every kilowatt of panels, a well-placed Swansea 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

5.4 hrsJanFebMarAprMayJunJulAugSepOctNovDec
Best month · June ~130 kWh
Quietest · December ~35 kWh
Apr–Sep share ~70%

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.

19 MCS-certified installers cover Swansea in our directory, and 14 also fit battery storage and 5 also install heat pumps.

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

Local context

Solar in Swansea: quick guide.

Swansea Bay is one of the sunnier corners of Wales, and most Swansea homes have at least one usable roof face. A few local things shape a good install:

  • Coastal exposure. Seafront and Gower properties face salt air and wind, so mounting and fixings are specified for the setting. This is routine for local firms, but worth flagging at survey.
  • Valleys terraces. Morriston, Landore and the Tawe valley have rows of solid stone and slate terraces. Fine for solar, though older roofs make the structural check matter more.
  • Post-war suburbs. Much of west Swansea and the Killay and Sketty belt has straightforward semis with simple roof shapes, which are easy solar candidates.
  • Welsh planning. Permitted-development rules in Wales differ from England, and Gower conservation villages add their own conditions. A local installer will know.
  • Neath and Port Talbot. Many searches here come from the SA10 to SA13 districts. Most listed installers cover the whole patch.

Grants & support

What help is available in Swansea?

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.

Common questions

FAQs about solar in Swansea.

Do I need planning permission for solar panels in Swansea?

Most domestic solar in Swansea is permitted development under Welsh planning rules, which differ slightly from England. Listed buildings and conservation areas, including parts of the maritime quarter, Uplands and the Gower villages, can carry extra conditions on visible roof slopes. A local installer will know Swansea Council’s position, and an installer survey confirms suitability before any work.

How much does a solar installation cost in Swansea?

Swansea prices track the UK average. A typical 4 kWp system usually lands in the £4,800 to £6,800 range installed, with battery storage adding roughly £3,000 to £6,000. Solar and battery are zero-rated for VAT until 2027. Exposed coastal and Gower properties can need extra fixing spec, so the on-roof survey gives the firm figure.

Does the coastal, exposed location affect solar in Swansea?

Swansea Bay gets good daylight, but salt air and wind exposure on the Gower and seafront mean fixings and mounting need to be specified for the setting. This is routine for local installers, and the panels themselves are sealed and cope well with maritime conditions.

Does this page cover Neath and Port Talbot?

Yes. Alongside the Swansea SA1 to SA8 districts, this page covers the Neath and Port Talbot core (SA10 to SA13). It does not extend to the western SA catchment around Llanelli and Carmarthen, which sits in a different travel area.

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