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Solar Thermal Installers in Longford

Browse 0 SEAI registered Solar Thermal installers in Longford. All installerslisted below are verified on the SEAI register. The SEAI solar thermal grant covers up to €1,200 of the installation cost.

Showing 0 Solar Thermal installers in Longford

No Solar Thermal installers found in Longford.

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How do you choose a Solar Thermal installer in Longford?

Check SEAI Registration

Only SEAI-registered installers qualify you for the €1,200 solar thermal grant. Verify your installer on the SEAI register.

Flat Plate vs Evacuated Tubes

Ask which collector type the installer recommends. Evacuated tube collectors (e.g. Thermomax, Kingspan) perform better in Ireland’s overcast climate. Flat plate collectors are cheaper and more durable. Your installer should explain the trade-offs.

Check Hot Water Cylinder

Solar thermal requires a twin-coil hot water cylinder. Ask whether your existing cylinder is compatible or if a replacement is included in the quote. A new 300L twin-coil cylinder adds €500–€800.

Ask About Maintenance

Solar thermal needs glycol fluid replacement every 3–5 years (€100–€150 per service). Ask whether the installer offers a maintenance plan or service agreement. This is more important than for solar PV, which has no fluid.

Read Customer Reviews

Check Google, Trustpilot, and Facebook reviews. Ask for references from recent solar thermal installations in Longford. Solar thermal is more niche than PV, so check the installer has specific solar thermal experience.

Compare with Solar PV

Ask your installer to explain the trade-offs between solar thermal (hot water only) and solar PV (electricity). Many homeowners now choose PV with a diverter to heat water, as it’s more flexible. A good installer will give honest advice on which suits your home.

Solar Panels in Longford

Solar yield, savings calculator, and local data for Longford.

SEAI Grant in Longford

Grant amounts, eligibility, and payback calculations for Longford.

Other Renewable Energy Professionals in Longford

Frequently Asked Questions About Solar Thermal Installers in Longford

How do I find a good solar thermal installer in Longford?

Check that the installer is on the SEAI register, as this is required to claim the €1,200 solar thermal grant. A good installer should assess your hot water usage and recommend the right collector size (typically 2–4 panels for a family home). Compare at least 2–3 quotes in Longford, ask for references, and verify they have experience with solar thermal specifically — not just solar PV.

How much do solar thermal installers in Longford charge?

A typical solar thermal installation in Longford costs €3,000–€5,500 before the SEAI grant, depending on whether you choose flat plate or evacuated tube collectors and whether a new hot water cylinder is needed. After the €1,200 grant, the net cost is usually €1,800–€4,300. Evacuated tubes (e.g. Thermomax, Kingspan) cost more but perform better in Irish weather.

Are solar thermal installers in Longford SEAI registered?

Not all installers are SEAI registered. You must use an SEAI-registered installer to qualify for the €1,200 grant. The SEAI maintains a public register at seai.ie. On this page, all listed installers serve Longford. Look for the “SEAI Registered” badge on each listing.

Do I need a new hot water cylinder for solar thermal?

In most cases, yes. Solar thermal requires a twin-coil hot water cylinder — one coil for the solar circuit and one for your backup boiler. If your existing cylinder only has a single coil, it will need to be replaced. A new 300-litre twin-coil cylinder typically costs €500–€800 as part of the installation. Ask your installer whether a new cylinder is included in the quote.

How much hot water can solar thermal provide in Ireland?

A well-sized solar thermal system typically provides 50–70% of your annual hot water needs. In summer months (May–September), solar thermal can meet nearly all your hot water demand. In winter, your backup boiler or immersion will cover the shortfall. A typical family of 4 needs a 2–4 panel system with a 200–300 litre cylinder.

Get a Free Solar Thermal Quote

Connect with SEAI-registered solar thermal installers in Longford.

Get a Free Solar Thermal Quote in Longford

Find out how much you could save with solar thermal.

No obligation. SEAI grant eligible. 0% VAT on residential installs.

All installers verified against the SEAI register.

Sources

Last updated: March 2026

Fact-checked by John Rooney, Solar Energy Editor. Editorial policy

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