Heat pumps for Monmouthshire — market towns, valleys and everything between.
From Abergavenny and Monmouth to the villages of the Wye and Usk Valleys, Monmouthshire mixes handsome market towns with deeply rural homes — many without mains gas. Thermal Earth designs and installs air- and ground-source heat pumps for both: 4,000+ systems over 20+ years, with our own designers, drillers and installers.
If you're on oil out in the valleys, you're exactly who a heat pump helps most.
No EPC? Send an enquiry or call 01269 833100. We can check the evidence needed for your property.
We start with the whole building, not a postcode assumption.
A Chepstow townhouse and a Trellech farmhouse need different designs. Four things shape every one:
Fabric
Construction, heat loss and ventilation — with old stone treated on its own terms.
Comfort
Room-by-room demand, hot water and what your radiators can deliver.
Setting
Unit position, sound, looks and the Welsh consent route for your address.
System
Plant, pipework, controls and the aftercare that keeps it working.
Air or ground — the building and landscape decide.
Both suit Monmouthshire homes; no town name settles it in advance. See how the complete system is designed.
A unit placed for performance and for the street.
Airflow, sound and appearance reconciled on the same drawing — then radiators, hot water and controls designed around it. In Wales, permitted development has its own conditions, and we check them for your address rather than assuming.
Explore air sourceValley land takes a collector well.
With a paddock, orchard or big garden — common through the Wye and Usk Valleys — trenches or boreholes give the steadiest source. Our own rigs have drilled Monmouthshire's sandstone and limestone before; we check services, access and Natural Resources Wales considerations, then size the collector and system as one.
A discreet unit outside, a proper system inside.
Cylinder, pipework, emitters and controls are planned before anything is ordered — with particular care in older homes, where pipe routes and finishes deserve respect.
We've installed in listed buildings and stone houses across the Wye and Usk Valleys; the craft is making new services disappear into old fabric.
Compare emitter and underfloor-heating options
Off oil, the savings are usually strongest.
Many Monmouthshire homeowners are switching from oil boilers and seeing real savings. Our estimate compares your actual house, fuel and tariff — not a national average.
Electrics and DNO notification are handled by us as part of the job. Afterwards, annual servicing and Comfort Care monitoring keep the system doing what the design promised.
Get a free estimateFarms, estates and community buildings need a strategy first.
Rural estates, schools, hospitality and mixed-use sites bring different loads and operating hours. We compare individual systems, shared ground loops and central plant around ownership, metering, phasing and long-term responsibility — before any equipment is fixed.
Request a consultationCurrent Welsh rules, checked for your address.
Monmouthshire's sensitive landscapes, conservation areas and listed buildings are part of its charm — and part of the planning picture. We work to the current Welsh rules, not folklore.
The county's own plan.
Monmouthshire's Local Development Plan maps its market towns, Severnside communities and rural areas — useful context for any project here.
Read the Monmouthshire Local Development PlanHome and business rules differ.
Many domestic installations are permitted development when the Welsh conditions are met; non-domestic air-source projects usually need a planning application. We establish the route for your specific proposal.
Grant help, handled with you.
You may qualify for the Boiler Upgrade Scheme — we handle the application. Welsh Government's Nest scheme supports eligible households too.
Eligible air-to-water or ground-source heat pump installations receive £7,500. If your property has no mains gas connection and you are replacing oil or LPG heating, the grant is £9,000 for applications properly made from 21 July 2026 to 31 March 2027. We check eligibility for your home.
Things Monmouthshire homeowners ask us.
Straight answers — the survey fills in the detail for your own house.
Will I need planning permission?
Usually not for a home — Welsh permitted development covers most domestic installations when the conditions are met. Listed buildings and conservation areas can change that, and we check your exact address before anything starts.
Air source or ground source?
Air source is simpler; ground source rewards valley land and bigger plots. Heat demand, access and ground conditions decide it — the survey settles which, with reasons.
Can an off-gas home work well?
That's our home ground — most of rural Wales heats this way. Replacing oil or LPG is where a properly designed heat pump saves the most.
What about older and listed homes?
Often a lovely fit. We've installed in stone houses and listed buildings across the Wye and Usk Valleys — heat loss, fabric and emitters assessed together, character respected.
Can grants reduce the cost?
Most homeowners replacing a fossil-fuel boiler qualify for the Boiler Upgrade Scheme, and we handle the application. Nest can help eligible households further — we'll check what applies to you.
What about farms and estates?
Request a consultation — load, ownership, metering, source strategy and phasing are exactly the conversation to have early.
Already a Thermal Earth customer?
Use the existing-customer route on our contact page so your request reaches the Helpdesk team directly.
The whole county, both valleys included.
Monmouth, Abergavenny, Chepstow, Usk, Raglan, Tintern, Trellech, Caldicot and Magor — plus the villages of the Wye Valley and Usk Valley.
Nearby too: see our Cardiff, Brecon and Gloucester pages — or see everywhere we work.
Thinking about a heat pump in Monmouthshire?
Get a free online estimate for your home — or for farms, estates and larger buildings, book a consultation and bring us the site.