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Heat Pump Installers in Llanelli

Thermal Earth is your local heat pump installer in Llanelli. Based just 15 minutes away at our Ammanford headquarters, we have been installing heat pumps across the Llanelli area since 2006. With over 3,500 installations completed, we are one of the most experienced heat pump companies in Wales.

Whether you live in a terrace in the town centre, a semi-detached in Felinfoel, or a detached property on the outskirts towards Burry Port, we have a heat pump solution for your home. Air source heat pumps are the most popular choice in urban Llanelli, while larger properties with garden space often benefit from ground source systems.

We install MasterTherm heat pumps, backed by our Comfort Care aftercare and remote monitoring. The £7,500 Boiler Upgrade Scheme grant makes switching more affordable than ever. Contact us for a free home assessment.

Why Choose Thermal Earth in Llanelli?

  • Your closest specialist installer — based just 15 minutes away in Ammanford, Carmarthenshire
  • 20+ years and 3,500+ installations — unmatched experience across Wales
  • MCS certified — required for the £7,500 BUS grant. We handle everything
  • Own borehole drilling team — three specialist rigs for ground source installations
  • Local knowledge — we understand Llanelli’s housing stock, from Victorian terraces to modern estates
  • Comfort Care and remote monitoring for ongoing peace of mind

Areas We Cover Near Llanelli

We cover all of the Llanelli area including the town centre, Felinfoel, Dafen, Bynea, Llangennech, Swiss Valley, Furnace, Pwll, Burry Port, Pembrey, Kidwelly, Trimsaran, Pontyberem, and the Gwendraeth Valley. For wider Carmarthenshire coverage, see our Carmarthenshire page.

Frequently Asked Questions

How much does a heat pump cost in Llanelli?

A typical air source heat pump installation in Llanelli costs between £8,000 and £18,000. Ground source systems range from £18,000 to £45,000. The £7,500 BUS grant is deducted directly from the price. Many of our Llanelli installations end up costing less than a new gas boiler when the grant is applied.

Can a heat pump replace a gas boiler in Llanelli?

Yes. While much of rural Wales is off-grid, Llanelli is on the gas network — but a heat pump is still a smart upgrade. Heat pumps are 3–4 times more efficient than gas boilers, which means lower running costs and zero carbon emissions from your home. The BUS grant makes the switch financially attractive even for gas-heated homes.

Is there enough space for a heat pump in a terraced house?

Air source heat pumps are compact and can usually be installed in a small rear yard, side return, or against an external wall. They need roughly the space of a washing machine. We assess noise levels and positioning during our site survey to ensure compliance with regulations and minimise any impact on neighbours.

What grants are available for Llanelli homeowners?

The £7,500 Boiler Upgrade Scheme is available to all homeowners. The Welsh Government’s Nest Scheme and Green Homes Wales offer additional support for eligible households. These can sometimes be combined. We advise on all options during your free consultation.

How noisy is an air source heat pump?

Modern air source heat pumps are very quiet — typically 40–45 dB at one metre, similar to a fridge. At the property boundary they are usually inaudible above background noise. We always check noise regulations during our design process and position units to minimise any impact.

How long does installation take?

Most air source installations in Llanelli take 2–3 days. Ground source systems take longer but are less common in urban areas. We schedule all work to minimise disruption and keep you informed throughout the process.