- Area
- Hertfordshire
- Postcode district
- SG6
- Nation
- England
- Guide price
- From £90 inc VAT
- Visit
- Rate agreed in advance
Before you book: heat pump repairs in Hitchin
Aftercare matters as much as installation. For a heat pump in Hitchin 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.
Outdoor units in exposed spots around Hitchin can ice more heavily, so siting is checked as part of any icing fault. Across Hitchin and Hertfordshire, refrigerant repairs on split systems are carried out by an F-gas certified engineer.
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.
- Rooms or hot water not getting warm enough
- 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
What's included
- A clear explanation of the fault and a price for the repair before work goes ahead
- Reading of error history and operating data
- System refill, venting and recommissioning after the repair
- Supply and fitting of replacement parts
- Testing of sensors, pumps, valves, pressures and electrics
Repairs in Hitchin that need a part ordered are explained and priced before the engineer leaves.
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 Hitchin quote.
Guide prices for heat pump repairs in Hitchin
These are guide prices including VAT. The rate for your visit in Hitchin is confirmed before we book it, and any repair is priced in writing before parts are ordered.
| Repair | Guide price |
|---|---|
| Fault-finding visit and diagnosis | £90–£190 |
| Sensor or thermistor replacement | £130–£290 |
| Expansion vessel or pressure relief valve | £160–£370 |
| Circulating pump replacement | £260–£500 |
| Fan motor replacement | £320–£680 |
| Refrigerant leak repair and re-gas (split systems) | £370–£1,000 |
| 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.
Winter daylight and heating in Hitchin
Hitchin has about 7 hours 45 minutes of daylight at midwinter and 16 hours 43 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 Hitchin
- 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 Hitchin.
- 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 Hitchin: questions
Do you also cover Letchworth Garden City?
Yes. We arrange heat pump servicing and repairs in Letchworth Garden City, which is about 3 miles north-east of Hitchin, and across Hertfordshire.
What should I check before booking a visit in Hitchin?
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.
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.
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.
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.