- Area
- Oxfordshire
- Postcode district
- OX1
- Nation
- England
- Guide price
- From £90 inc VAT
- Visit
- Rate agreed in advance
Before you book: heat pump repairs in Oxford
Aftercare matters as much as installation. For a heat pump in Oxford 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.
Heat pump owners in Oxford can arrange a fault-finding visit at a rate agreed before an engineer attends. Outdoor units in exposed spots around Oxford can ice more heavily, so siting is checked as part of any icing fault.
When a heat pump shows an error, loses pressure or stops heating, an engineer diagnoses the cause and explains the repair and its cost before fixing it.
- Heat pumps showing an error code or fault light
- Rooms or hot water not getting warm enough
- Outdoor units that have become noisy, iced up or keep switching on and off
What's included
- Reading of error history and operating data
- Fault-finding visit at a rate agreed before attending
- System refill, venting and recommissioning after the repair
- Supply and fitting of replacement parts
- Refrigerant repairs by an F-gas certified engineer where needed
Repairs in Oxford that need a part ordered are explained and priced before the engineer leaves.
Grants and rules for heat pumps in England
Homes in Oxford can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.
Heat pump repairs costs around Oxford
Guide prices for Oxfordshire, including VAT. We agree the visit rate before anyone attends, so there are no surprises on the day.
| Repair | Guide price |
|---|---|
| Fault-finding visit and diagnosis | £90–£190 |
| Sensor or thermistor replacement | £120–£290 |
| Expansion vessel or pressure relief valve | £160–£360 |
| Circulating pump replacement | £260–£500 |
| Fan motor replacement | £310–£680 |
| Refrigerant leak repair and re-gas (split systems) | £360–£990 |
| Main control board (PCB) replacement | £470–£1,150 |
Inc VAT. The fault-finding rate is agreed before we attend; repairs are priced in writing before parts are ordered.
Designing for Oxford's winters
On the shortest day Oxford 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.
How a visit works in Oxford
- Tell us the make if you know it, the error code or symptoms, and send photos of the unit and controller.
- We confirm the fault-finding rate and arrange a visit in Oxford.
- The engineer diagnoses the fault and gives you a written price for the repair.
- Parts are ordered once you agree, and the repair is completed and tested.
Heat pump repairs in Oxford: questions
Can you work on a heat pump in Oxford that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Oxford, whoever fitted them. Tell us the make and model when you get in touch.
Will the engineer need access indoors as well as outside?
Usually yes. The outdoor unit, the hot water cylinder, the controls and the pipework and valves indoors are all part of the visit, so allow access to each.
What should I check before booking a visit in Oxford?
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.
Is ice on my heat pump a fault?
Some frost on the outdoor unit in cold, damp weather is normal, and the unit clears it with regular defrost cycles, often releasing a little vapour. It becomes a fault when thick ice builds up and does not clear, or when ice blocks the fan. That can point to poor airflow, a failed sensor, drainage problems or low refrigerant, and needs checking.
Can you repair a heat pump installed by another company?
Yes. We carry out fault-finding and repairs on heat pumps installed by other companies, including monobloc and split systems. Tell us the make, model and approximate age when you get in touch, plus any error code shown. If the system is still under the manufacturer's warranty, it may be quicker to contact the original installer or manufacturer first.