- Area
- Greater London
- Postcode district
- HA1
- Nation
- England
- Guide price
- From £130 inc VAT
- Visit
- Rate agreed in advance
Heat pump servicing in Harrow: what to expect
Whoever installed your heat pump, aftercare can be arranged in Harrow. Tell us the make and model and roughly how old it is, and we will set out what the visit involves before you book.
Heat pumps in Harrow that sit near trees or hedges often need their outdoor coil cleared of leaves at the annual service. If a heat pump in Harrow has not been serviced for a while, the first visit includes a full check of settings and pressures.
An annual service keeps a heat pump running efficiently, catches small faults early and is often a condition of the manufacturer's warranty.
- Heat pumps installed by another company that need a new servicing arrangement
- Systems where the manufacturer's warranty requires annual servicing
- Homes where running costs have crept up or rooms feel cooler than before
What's included
- Refrigerant circuit checks on split systems by an F-gas certified engineer
- Glycol or antifreeze protection test where fitted
- Expansion vessel, pressure relief and water quality checks
- A dated service record for your warranty and property files
- Controls and error log check, with settings adjusted where needed
Service visits in Harrow include unvented cylinder safety checks alongside the heat pump itself.
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 Harrow quote.
Heat pump servicing prices in Harrow
These are guide prices including VAT. The rate for your visit in Harrow is confirmed before we book it, and any repair is priced in writing before parts are ordered.
| Visit | Guide price |
|---|---|
| Annual heat pump service | £130–£280 |
| Fault-finding visit (first hour) | £100–£200 |
Inc VAT. The rate for your visit is confirmed before booking.
Designing for Harrow's winters
On the shortest day Harrow gets about 7 hours 49 minutes of daylight, and the winter sun reaches only around 15° above the horizon at noon. Winters this far south are milder than in most of the UK, which helps a heat pump run at low flow temperatures for much of the season.
How a visit works in Harrow
- Book a service and tell us roughly how old the system is.
- An engineer visits your Harrow home and works through the service checklist.
- You receive a written record of the service and any recommendations.
- If a repair is needed, it is priced in writing before any work goes ahead.
Heat pump servicing in Harrow: questions
How much does a visit cost in Harrow?
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 Harrow that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Harrow, whoever fitted them. Tell us the make and model when you get in touch.
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.
How much does a heat pump service cost?
An annual heat pump service has a guide price of £120–£250, including VAT. Where your price sits depends on the type of system, whether it is a split system needing refrigerant checks and whether an unvented cylinder is included. Any parts or repairs found during the service are explained and priced before any work goes ahead.
What does a heat pump service not include?
A service covers inspection, cleaning, testing and adjustment. It does not include replacement parts, major repairs, system flushing or radiator changes, which are quoted separately if needed. If the engineer finds a fault, they explain what it is, what it would cost to fix and whether it needs doing now or can wait.