- Area
- County Londonderry
- Postcode district
- BT48
- Nation
- Northern Ireland
- Guide price
- From £90 inc VAT
- Visit
- Rate agreed in advance
Before you book: heat pump repairs in Derry/Londonderry
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.
Heat pump owners in Derry/Londonderry can arrange a fault-finding visit at a rate agreed before an engineer attends. Outdoor units in exposed spots around Derry/Londonderry 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.
- Systems losing pressure or needing frequent topping up
- Rooms or hot water not getting warm enough
- Heat pumps installed by another company that need a second opinion
What's included
- System refill, venting and recommissioning after the repair
- Reading of error history and operating data
- Refrigerant repairs by an F-gas certified engineer where needed
- Testing of sensors, pumps, valves, pressures and electrics
- A clear explanation of the fault and a price for the repair before work goes ahead
Repairs in Derry/Londonderry that need a part ordered are explained and priced before the engineer leaves.
Grants and rules for heat pumps in Northern Ireland
Northern Ireland does not have a dedicated heat pump grant for homeowners at present, and the Boiler Upgrade Scheme does not apply here. Heat pumps have sometimes been funded through the Northern Ireland Sustainable Energy Programme, so it is worth checking what is open when you enquire about a home in Derry/Londonderry.
What to budget for heat pump repairs in Derry/Londonderry
Guide prices for County Londonderry, 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–£170 |
| Sensor or thermistor replacement | £120–£270 |
| Expansion vessel or pressure relief valve | £150–£340 |
| Circulating pump replacement | £240–£470 |
| Fan motor replacement | £290–£630 |
| Refrigerant leak repair and re-gas (split systems) | £340–£920 |
| Main control board (PCB) replacement | £440–£1,050 |
Inc VAT. The fault-finding rate is agreed before we attend; repairs are priced in writing before parts are ordered.
Short winter days in Derry/Londonderry and what they mean
Derry/Londonderry sees roughly 7 hours 10 minutes of daylight in December and 17 hours 22 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
How a visit works in Derry/Londonderry
- 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 Derry/Londonderry.
- 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 Derry/Londonderry: questions
How much does a visit cost in Derry/Londonderry?
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.
Can you work on a heat pump in Derry/Londonderry that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Derry/Londonderry, whoever fitted them. Tell us the make and model when you get in touch.
What should I check before booking a visit in Derry/Londonderry?
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.
Why is my heat pump showing an error code?
An error code is the heat pump's way of reporting a problem it has detected, such as low water flow, a sensor reading out of range or a communication fault between units. Note the code and check the manual, as some codes clear after a simple reset or pressure top-up. If it returns, an engineer can trace the underlying cause.
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.