- Area
- Argyll and Bute
- Postcode district
- PA23
- Nation
- Scotland
- Guide price
- From £100 inc VAT
- Visit
- Rate agreed in advance
Heat pump repairs in Dunoon: 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.
Outdoor units in exposed spots around Dunoon can ice more heavily, so siting is checked as part of any icing fault. Heat pump owners in Dunoon can arrange a fault-finding visit at a rate agreed before an engineer attends.
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
- Systems losing pressure or needing frequent topping up
- Heat pumps showing an error code or fault light
What's included
- Fault-finding visit at a rate agreed before attending
- Testing of sensors, pumps, valves, pressures and electrics
- Reading of error history and operating data
- A clear explanation of the fault and a price for the repair before work goes ahead
- Supply and fitting of replacement parts
For repeated faults in Dunoon, the engineer looks at the system design as well as the failed part.
Grants and rules for heat pumps in Scotland
The Boiler Upgrade Scheme does not apply in Scotland. Instead, homeowners in Dunoon can apply to Home Energy Scotland for a grant of up to £7,500 towards a heat pump, with up to £1,500 more for eligible rural and island homes, plus an optional interest-free loan of up to £7,500. You need a written funding offer before any work starts.
What to budget for heat pump repairs in Dunoon
Guide prices for Argyll and Bute, 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–£380 |
| Circulating pump replacement | £270–£520 |
| Fan motor replacement | £320–£700 |
| Refrigerant leak repair and re-gas (split systems) | £380–£1,050 |
| Main control board (PCB) replacement | £490–£1,200 |
Inc VAT. The fault-finding rate is agreed before we attend; repairs are priced in writing before parts are ordered.
Short winter days in Dunoon and what they mean
On the shortest day Dunoon gets only about 6 hours 57 minutes of daylight, with the sun around 11° up at noon. Long Scottish winters mean the heat pump runs for much of the year, so careful sizing, good controls and correctly sized radiators make a real difference.
Booking a visit in Dunoon
- 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 Dunoon.
- 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.
Dunoon is in an area we cover by arrangement, so survey dates and any travel costs are confirmed individually in your quote.
Heat pump repairs in Dunoon: questions
What should I check before booking a visit in Dunoon?
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.
Can you work on a heat pump in Dunoon that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Dunoon, whoever fitted them. Tell us the make and model when you get in touch.
Do you also cover Gourock?
Yes. We arrange heat pump servicing and repairs in Gourock, which is about 4 miles east of Dunoon, and across Argyll and Bute.
How much does a heat pump repair cost?
Heat pump repairs have a typical range of £90–£1,100, including VAT, depending on the part and labour involved. Sensor replacements sit at the lower end, while control boards and refrigerant repairs on split systems sit higher. Every repair starts with a fault-finding visit, with a guide price of £90–£180 for the first hour, and the repair is priced before work goes ahead.
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.

