What is air source heat pump servicing?
A heat pump service is a planned inspection and maintenance visit following the manufacturer’s schedule. It checks the outdoor appliance, water circuit and controls, with a written record of readings and any work needed. Repairs discovered during a service may be quoted separately.
Signs you may need air source heat pump servicing
- The next visit required by the manufacturer or warranty is due.
- You have moved into a house with a heat pump and incomplete service records.
- Outdoor airflow is becoming restricted by leaves or vegetation.
- You want pressure loss, unusual cycling or changing electricity use investigated alongside maintenance.
What the specialist checks and does
- Review the service record, fault log and manufacturer’s maintenance schedule.
- Inspect the coil, fan, mountings and condensate route, cleaning as specified.
- Check pressure, strainers, filters and expansion arrangements where applicable.
- Test antifreeze concentration if the system uses glycol and review frost protection.
- Record temperatures, control settings and findings, then explain any further work.
Not every monobloc uses glycol: some designs use other frost-protection measures. Ask the engineer to follow the actual installation design. A routine service should not involve opening the refrigerant circuit without a reason. Formal leak-check duties depend on the refrigerant, charge and applicable rules, rather than simply the word “heat pump”.
Before you ask for a quotation
Provide the make, model, installation date and last service record. Say whether the firm installed it originally and ask if they service that brand. Keep access to the outdoor unit, cylinder and controller clear. Record any pressure loss or recurring error code rather than repeatedly resetting the system.
Indicative cost and time
The site’s UK guide is £150–£350. This covers a planned visit. Travel, cylinder servicing, consumables, required leak checks and extra diagnosis may be additional. Compare annual plans by their coverage as well as the monthly payment.
The indicative timeframe is 1–2 hours. Confirm what this covers, availability and any separate equipment lead time with the firm.
Qualifications, funding and permissions
Qualifications depend on the task and refrigerant. Regulated work on equipment containing fluorinated refrigerant needs the appropriate F-gas qualifications; see the government F-gas qualification guidance. R290 is propane, not an F-gas, but still requires suitable competence and safe handling. Routine water-side work on a sealed monobloc is different from opening its refrigerant circuit.
Finishing the job and keeping records
Keep the dated service sheet and any invoice with the warranty paperwork. Servicing can identify faults and poor settings but does not guarantee lower bills or continued warranty cover. Check the manufacturer’s interval and any conditions about approved engineers.
Frequently asked questions
Does a heat pump need annual servicing?
Many manufacturers specify an annual visit, often as a warranty condition. Check the schedule for your model and keep written evidence of the work; requirements vary.
Is a repair included in the service price?
Not always. Ask whether diagnosis, small consumables and adjustments are included, and require approval before chargeable parts or additional labour are supplied.
Do all heat pumps need glycol checks?
Only systems using a glycol mixture need its concentration checked. Other installations use different frost-protection arrangements, which should be inspected according to their design.
Air Source Heat Pump Cost is a consumer matching service. One online enquiry can bring up to four quotations from independent local specialists, depending on the work, coverage and availability. We do not carry out the work or employ the specialists. Companies joining the network are asked to provide relevant insurance details and references.
Describe your heat pump enquiry to request quotations without an obligation to accept.