Brendan McMahon Plumbing SEAI Registered Solar Thermal Installer in Mayo
Contact: Aidan Mac Mahon
Grant figures confirmed against SEAI
SEAI-registered Brendan McMahon Plumbing Serving Mayo and Surrounding Areas
Brendan McMahon Plumbing is a solar thermal installer based in Mayo, covering Castlebar, Ballina and homeowners across the county. Brendan McMahon Plumbing is listed on the SEAI register for solar thermal (checked July 2026), and you contact the installer directly. Confirm current registration with SEAI before you book.
Based in Mayo, Brendan McMahon Plumbing serves homeowners across the county including Castlebar, Westport, Ballina, Claremorris, Knock, Belmullet, Crossmolina and Swinford. Whether you are in Castlebar, Ballina or anywhere across Mayo, get in touch to discuss your renewable heating project.
Renewable heating upgrades supported by the SEAI grant scheme are open to homeowners right across Mayo, whether you are replacing an ageing oil or gas boiler, adding solar, or planning a full home energy upgrade.
Send Brendan McMahon Plumbing an enquiry
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Brendan McMahon Plumbing, Common Questions
Is Brendan McMahon Plumbing SEAI-registered?
Brendan McMahon Plumbing is listed on the SEAI register for solar thermal installation in Mayo (checked July 2026). Registration can change, so confirm it on the SEAI registered contractor search (https://hes.seai.ie/GrantProcess/ContractorSearch.aspx) before you book.
How do I get a quote from Brendan McMahon Plumbing?
Contact Brendan McMahon Plumbing directly using the phone number on this page. Nothing goes through us, there is no booking fee, and your details are not passed to anyone else or sold on.
What areas does Brendan McMahon Plumbing cover?
Brendan McMahon Plumbing is based in Mayo and takes work across the county, including Castlebar, Westport, Ballina, Claremorris, Knock, Belmullet, Crossmolina and Swinford. Most installers cover their whole county rather than one town, so it is worth confirming your own address when you call.
Do I need to use an installer based in Mayo?
No. SEAI registration is national rather than county by county, so a contractor listed under a neighbouring county can quote for your home and handle the grant the same way. Getting two or three quotes is the only reliable way to see what the work should cost.
Does Brendan McMahon Plumbing only do solar thermal installation?
On the SEAI register they are listed for solar thermal installation. They may well do other work, but solar thermal installation is the measure their registration covers, so it is the one they can process a grant for.
Should anything be done before the installation?
Insulation comes first on any home energy upgrade. A well-sealed house needs a smaller system and runs at a lower cost, and attic and wall insulation carry SEAI grants of their own. Ask about the fabric of the house when you speak to Brendan McMahon Plumbing.
The Other Trades a Mayo Retrofit Needs
A renewable heating upgrade rarely happens on its own, and the order the work goes in decides what it costs. These are SEAI-registered trades covering Mayo on our sister sites, each one worth lining up before the heating work starts rather than after.
- While the scaffolding is up Roofers in Mayo If external wall insulation is going on, the scaffolding is already up and paid for. That is the cheapest time to deal with the roof, and solar panels want a sound roof under them.
- Alongside the installation Plumbers and gas installers in Mayo Taking out an old oil or gas boiler, reworking the heating circuit and fitting the hot water cylinder is usually done by a registered plumber, and a heat pump is usually commissioned by a qualified, registered professional.
SEAI Heat Pump Grant for Work by Brendan McMahon Plumbing
SEAI support for a heat pump is up to €12,500 (as of July 2026) for eligible homes. Ask Brendan McMahon Plumbing how the grant application and payment would work for your job, and confirm the details with SEAI before any work starts.
It is worth knowing how the total breaks down before the survey. The heat pump itself carries €6,500, a Renewable Heat Bonus applies where you are replacing an oil, gas, solid fuel or electric storage system, and a further amount goes towards heating system upgrades such as new radiators. Asking for the quote to set those out separately makes the net figure clear rather than leaving it to be worked out later.