- Area
- Northamptonshire
- Postcode district
- NN11
- Nation
- England
- Guide price
- From £90 inc VAT
- Visit
- Rate agreed in advance
Heat pump repairs for Daventry homes
Whoever installed your heat pump, aftercare can be arranged in Daventry. Tell us the make and model and roughly how old it is, and we will set out what the visit involves before you book.
For repeated faults in Daventry, the engineer looks at the system design as well as the failed part. Heat pump owners in Daventry 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.
- Systems losing pressure or needing frequent topping up
- Rooms or hot water not getting warm enough
- Outdoor units that have become noisy, iced up or keep switching on and off
What's included
- Refrigerant repairs by an F-gas certified engineer where needed
- Fault-finding visit at a rate agreed before attending
- Testing of sensors, pumps, valves, pressures and electrics
- Supply and fitting of replacement parts
- Reading of error history and operating data
We repair heat pumps in Daventry whoever installed them, including older monobloc and split systems.
Grants and rules for heat pumps in England
Homes in Daventry can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.
Heat pump repairs prices in Daventry
Guide prices for Northamptonshire, 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–£180 |
| Sensor or thermistor replacement | £120–£280 |
| Expansion vessel or pressure relief valve | £150–£350 |
| Circulating pump replacement | £250–£480 |
| Fan motor replacement | £300–£650 |
| Refrigerant leak repair and re-gas (split systems) | £350–£950 |
| Main control board (PCB) replacement | £450–£1,100 |
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 Daventry?
Daventry has about 7 hours 42 minutes of daylight at midwinter and 16 hours 47 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.
How a visit works in Daventry
- 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 Daventry.
- 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 Daventry: questions
How often should a heat pump in Daventry be serviced?
Once a year is the usual recommendation, and many manufacturers make annual servicing a condition of the warranty. Check your warranty terms for the exact requirement.
How much does a visit cost in Daventry?
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 Towcester?
Yes. We arrange heat pump servicing and repairs in Towcester, which is about 11 miles south-east of Daventry, and across Northamptonshire.
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.
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.