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Heat Pump Installers in Monmouthshire

Thermal Earth installs heat pumps throughout Monmouthshire, from the market towns of Abergavenny and Monmouth to the villages of the Wye Valley and Usk Valley. With over 20 years of experience and 3,500+ installations, we are one of the most experienced heat pump companies serving South East Wales.

Monmouthshire’s mix of rural properties, period homes, and villages without mains gas makes it an excellent area for heat pump installations. Many homeowners are switching from oil boilers and seeing significant savings. A well-designed heat pump system can reduce heating costs by 40–70% compared to oil or LPG.

We install MasterTherm heat pumps and offer both air source and ground source options. Every system is engineered for your property following a detailed heat loss survey. The £7,500 Boiler Upgrade Scheme grant is available to all homeowners.

Why Choose Thermal Earth in Monmouthshire?

  • 20+ years and 3,500+ installations across Wales and the UK
  • Period property experience — we have installed systems in listed buildings, stone houses, and older properties throughout the Wye and Usk Valleys
  • Own borehole drilling team — three rigs with experience in Monmouthshire’s sandstone and limestone geology
  • MCS certified — required for the £7,500 BUS grant. We handle the full application
  • MasterTherm heat pumps — premium European-manufactured systems with excellent efficiency
  • Comfort Care maintenance and online monitoring for long-term performance

Areas We Cover in Monmouthshire

We cover the whole of Monmouthshire including Monmouth, Abergavenny, Chepstow, Usk, Raglan, Tintern, Trellech, Caldicot, Magor, and the wider Wye Valley. We also serve neighbouring areas — see our Cardiff, Brecon, and Gloucester pages for nearby coverage.

Frequently Asked Questions

How much does a heat pump cost in Monmouthshire?

Air source heat pump installations typically cost £8,000 to £18,000, and ground source systems £18,000 to £45,000 before the grant. The £7,500 BUS grant is deducted directly from the price. For a personalised estimate, request a free consultation.

Can a heat pump be installed in a listed building?

Yes. We have successfully installed heat pumps in listed buildings and period properties across Monmouthshire. Ground source heat pumps are often preferred for listed buildings as the outdoor equipment is underground and invisible. Air source units can usually be positioned discretely. We advise on listed building consent requirements during our site assessment.

What are the ground conditions like in Monmouthshire for ground source?

Monmouthshire has generally good ground conditions for borehole drilling. The mix of old red sandstone and limestone in the area provides reliable thermal conductivity. Our own drilling team has drilled extensively in the region and understands the local geology. We always conduct a site assessment before recommending borehole depth and configuration.

What grants are available in Monmouthshire?

The £7,500 Boiler Upgrade Scheme is available to all homeowners. As Monmouthshire is in Wales, the Nest Scheme and Green Homes Wales may provide additional support for eligible households. We advise on all funding options during your consultation.

Do I need planning permission?

Most installations fall under permitted development. However, properties in the Wye Valley AONB, conservation areas, or listed buildings may require additional consent. We check planning requirements for every project and handle any applications needed.

Can I keep my existing radiators?

In many cases, yes. We assess every radiator during the heat loss survey. Larger and modern radiators typically work well with heat pumps. Some homes may benefit from upgrading a few key radiators for optimal comfort, but full replacement is rarely needed.