- Area
- Gwynedd
- Postcode district
- LL55
- Nation
- Wales
- Guide price
- From £120 inc VAT
- Visit
- Rate agreed in advance
Heat pump servicing in Caernarfon: what to expect
Aftercare matters as much as installation. For a heat pump in Caernarfon the visit checks the outdoor unit, the water circuit and the controls, and the engineer explains any settings that would help the system run more efficiently.
We service heat pumps in Caernarfon whoever installed them, including monobloc and split systems. Homes in Caernarfon and across Gwynedd can book servicing at a time of year that suits them, ideally before winter.
An annual service keeps a heat pump running efficiently, catches small faults early and is often a condition of the manufacturer's warranty.
- Systems where the manufacturer's warranty requires annual servicing
- Heat pumps installed by another company that need a new servicing arrangement
- Heat pumps a year or more past installation
What's included
- Magnetic filter and strainer clean, with system pressure topped up
- Refrigerant circuit checks on split systems by an F-gas certified engineer
- Glycol or antifreeze protection test where fitted
- Unvented cylinder safety checks and legionella cycle check
- A dated service record for your warranty and property files
Heat pumps in Caernarfon that sit near trees or hedges often need their outdoor coil cleared of leaves at the annual service.
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 Caernarfon quote.
Heat pump servicing prices in Caernarfon
Guide prices for Gwynedd, 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.
How long is the heating season in Caernarfon?
Caernarfon has about 7 hours 32 minutes of daylight at midwinter and 16 hours 58 minutes at midsummer. That swing matters if you pair a heat pump with solar panels: summer generation can cover much of the hot water, winter generation far less.
Booking a visit in Caernarfon
- Book a service and tell us roughly how old the system is.
- An engineer visits your Caernarfon 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 Caernarfon: questions
What should I check before booking a visit in Caernarfon?
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.
How often should a heat pump in Caernarfon be serviced?
Once a year is the usual recommendation, and many manufacturers make annual servicing a condition of the warranty. Check your warranty terms for the exact requirement.
Can you work on a heat pump in Caernarfon that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Caernarfon, whoever fitted them. Tell us the make and model when you get in touch.
How often should a heat pump be serviced?
Once a year is the usual recommendation for air source heat pumps, and many manufacturers require it as a warranty condition. An annual visit cleans filters and strainers, checks pressures and controls, and tests the unvented cylinder's safety devices. If you notice a drop in performance, unusual noises or repeated error codes between services, arrange a visit sooner.
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.