- Area
- Surrey
- Postcode district
- RH4
- Nation
- England
- Guide price
- From £100 inc VAT
- Visit
- Rate agreed in advance
Heat pump repairs in Dorking: what to expect
Aftercare matters as much as installation. For a heat pump in Dorking 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.
For repeated faults in Dorking, the engineer looks at the system design as well as the failed part. We repair heat pumps in Dorking whoever installed them, including older monobloc and split systems.
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 installed by another company that need a second opinion
- Outdoor units that have become noisy, iced up or keep switching on and off
- Heat pumps showing an error code or fault light
What's included
- Refrigerant repairs by an F-gas certified engineer where needed
- System refill, venting and recommissioning after the repair
- Fault-finding visit at a rate agreed before attending
- Reading of error history and operating data
- A clear explanation of the fault and a price for the repair before work goes ahead
Heat pump owners in Dorking can arrange a fault-finding visit at a rate agreed before an engineer attends.
Grants and rules for heat pumps in England
In England 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), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your Dorking quote.
Heat pump repairs costs around Dorking
Guide prices for Surrey, 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 | £100–£190 |
| Sensor or thermistor replacement | £130–£300 |
| Expansion vessel or pressure relief valve | £160–£370 |
| Circulating pump replacement | £270–£510 |
| Fan motor replacement | £320–£700 |
| Refrigerant leak repair and re-gas (split systems) | £370–£1,000 |
| Main control board (PCB) replacement | £480–£1,200 |
Inc VAT. The fault-finding rate is agreed before we attend; repairs are priced in writing before parts are ordered.
Designing for Dorking's winters
Dorking sees roughly 7 hours 52 minutes of daylight in late December against 16 hours 35 minutes in June. Milder southern winters suit heat pumps well, though the system is still sized for a cold snap rather than an average day.
What happens when you book in Dorking?
- 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 Dorking.
- 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 Dorking: questions
Can you work on a heat pump in Dorking that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Dorking, whoever fitted them. Tell us the make and model when you get in touch.
How much does a visit cost in Dorking?
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.
Do you also cover Reigate?
Yes. We arrange heat pump servicing and repairs in Reigate, which is about 6 miles east of Dorking, and across Surrey.
Why does my heat pump keep switching on and off?
Frequent starting and stopping, called short cycling, is usually caused by an oversized heat pump, low water flow, too many zones closing at once or controls set with too narrow a range. It reduces efficiency and wears components. An engineer can check the settings, flow rates and design, and can often improve it with control changes before any parts are needed.
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.