- Area
- Mid Glamorgan
- Postcode district
- CF47
- Nation
- Wales
- Guide price
- From £120 inc VAT
- Visit
- Rate agreed in advance
Heat pump servicing in Merthyr Tydfil: what to expect
A heat pump that is serviced and set up properly keeps running efficiently for many years. Many heat pump faults trace back to settings, low pressure or a worn part rather than the heat pump itself, and those can usually be put right.
If a heat pump in Merthyr Tydfil has not been serviced for a while, the first visit includes a full check of settings and pressures. Landlords in Merthyr Tydfil can arrange servicing for several properties, with a dated record for each.
An annual service keeps a heat pump running efficiently, catches small faults early and is often a condition of the manufacturer's warranty.
- Heat pumps a year or more past installation
- Heat pumps installed by another company that need a new servicing arrangement
- Landlords who need dated service records for each property
What's included
- A dated service record for your warranty and property files
- Controls and error log check, with settings adjusted where needed
- Glycol or antifreeze protection test where fitted
- Expansion vessel, pressure relief and water quality checks
- Refrigerant circuit checks on split systems by an F-gas certified engineer
Service visits in Merthyr Tydfil include unvented cylinder safety checks alongside the heat pump itself.
Grants and rules for heat pumps in Wales
In Wales the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027; £2,500 for air-to-air). The MCS-certified installer named in your quote applies to Ofgem for you, and the grant comes off your Merthyr Tydfil quote.
Heat pump servicing prices in Merthyr Tydfil
Guide prices for Mid Glamorgan, including VAT. We agree the visit rate before anyone attends, so there are no surprises on the day.
| Visit | Guide price |
|---|---|
| Annual heat pump service | £120–£250 |
| Fault-finding visit (first hour) | £90–£180 |
Inc VAT. The rate for your visit is confirmed before booking.
Designing for Merthyr Tydfil's winters
On the shortest day Merthyr Tydfil gets about 7 hours 47 minutes of daylight, with the noon sun around 15° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.
Booking a visit in Merthyr Tydfil
- Book a service and tell us roughly how old the system is.
- An engineer visits your Merthyr Tydfil home and works through the service checklist.
- You receive a written record of the service and any recommendations.
- If a repair is needed, it is priced in writing before any work goes ahead.
Heat pump servicing in Merthyr Tydfil: questions
How much does a visit cost in Merthyr Tydfil?
The rate for a service or fault-finding visit is agreed before anyone attends. Any repair is priced in writing before parts are ordered, so you decide before work goes ahead.
What should I check before booking a visit in Merthyr Tydfil?
Note any error code on the controller, check the system pressure gauge if you have one, and make sure the outdoor unit is clear of leaves or snow. Photos of the unit and controller help.
Can you work on a heat pump in Merthyr Tydfil that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Merthyr Tydfil, whoever fitted them. Tell us the make and model when you get in touch.
How much does a heat pump service cost?
An annual heat pump service has a guide price of £120–£250, including VAT. Where your price sits depends on the type of system, whether it is a split system needing refrigerant checks and whether an unvented cylinder is included. Any parts or repairs found during the service are explained and priced before any work goes ahead.
Can you service a split system?
Yes. Split systems have refrigerant pipes running between the outdoor unit and an indoor unit, and checks on that refrigerant circuit must be done by an F-gas certified engineer. We arrange the service so a suitably certified engineer attends. The water side, controls and cylinder are checked in the same visit, just as on a monobloc system.

