- Area
- County Antrim
- Postcode district
- BT27
- Nation
- Northern Ireland
- Guide price
- From £90 inc VAT
- Visit
- Rate agreed in advance
Heat pump repairs in Lisburn: what to expect
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.
For repeated faults in Lisburn, the engineer looks at the system design as well as the failed part. Repairs in Lisburn that need a part ordered are explained and priced before the engineer leaves.
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
- Reading of error history and operating data
- Refrigerant repairs by an F-gas certified engineer where needed
- A clear explanation of the fault and a price for the repair before work goes ahead
- Fault-finding visit at a rate agreed before attending
- Supply and fitting of replacement parts
Across Lisburn and County Antrim, refrigerant repairs on split systems are carried out by an F-gas certified engineer.
Grants and rules for heat pumps in Northern Ireland
The Boiler Upgrade Scheme covers England and Wales only, and there is currently no dedicated heat pump grant for homeowners in Northern Ireland. Our quote for a Lisburn home is therefore shown without a grant deduction; if support becomes available we will tell you how it applies.
Heat pump repairs prices in Lisburn
Guide prices for County Antrim, 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.
How long is the heating season in Lisburn?
Lisburn sees roughly 7 hours 16 minutes of daylight in December and 17 hours 16 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.
What happens when you book in Lisburn?
- 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 Lisburn.
- 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 Lisburn: questions
Do you also cover Belfast?
Yes. We arrange heat pump servicing and repairs in Belfast, which is about 7 miles north-east of Lisburn, and across County Antrim.
Can you work on a heat pump in Lisburn that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Lisburn, whoever fitted them. Tell us the make and model when you get in touch.
How much does a visit cost in Lisburn?
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.
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.
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.