Renewable heating
Heat pump maintenance
Planned checks that protect performance, reliability and manufacturer requirements.
Explore service →Across Surrey
Heat pump repairs
Structured fault finding for air-source and ground-source heating systems.
10+ yearsdomestic heating experience stated by NW Heating
Air + groundheat-pump installation, repair and maintenance
Whole homeheat loss, emitters, controls and hot water
Surrey20 locally focused service-area pages
Direct answer
What this service involves
A heat-pump fault can sit in the refrigeration circuit, water circuit, controls, sensors, electrical supply or system design. Good diagnosis starts with symptoms and operating data before parts are changed.
When it may suit your home
Contact us for loss of heat or hot water, repeated error codes, unusual cycling, new noise, pressure problems, icing that does not clear, or an unexplained rise in electricity use.
A clear route
How we approach heat pump repairs
- 01
Record symptoms, model and error history
- 02
Check controls, temperatures, pressures and flow
- 03
Test the relevant electrical, hydraulic and heat-pump components
- 04
Explain findings and obtain approval before repair
- 05
Run and verify the system after work
Clear answers
Heat pump repairs: frequently asked questions
Answers are shown in full so they remain useful and accessible. Property-specific decisions still require survey evidence.
Browse the full FAQ library →Should I reset the heat pump?+
One reset may clear a transient fault, but repeated resets can hide a developing problem. Record the code and seek advice.
Why is the outdoor unit icing?+
Temporary frost can be normal and should be managed by defrost cycles. Persistent ice or poor heat output needs investigation.
Do you repair both air and ground source systems?+
Yes, the confirmed service scope includes repair support for both technologies, subject to model and parts availability.
What information helps before a heat pump repairs visit?+
Share the property type, current heating fuel, recent energy use where available, comfort problems, planned building work and photographs of the existing equipment. This helps us identify the right survey or diagnostic visit.
How is heat pump repairs priced?+
A reliable price follows a defined scope. Equipment, access, diagnostic or heat-loss work, emitter and cylinder changes, electrical work, controls, commissioning and aftercare can all affect the quotation.
Related services for your next decision
Continue with the services most closely connected to heat pump repairs.
Renewable heating
Heat loss and system design
Room-by-room evidence for sizing heat pumps, emitters and controls.
Explore service →
Renewable heating
Heat pump installation
A measured route from suitability assessment to commissioned renewable heating.
Explore service →Bring us the real heating problem
Tell us what is working, what is not and what you hope to change. We’ll recommend the right next assessment.
Design evidence
What we check before recommending heat pump repairs
Renewable heating works best when the recommendation follows measured evidence. We look at the building fabric, room-by-room heat demand, the condition and output of radiators or floor circuits, water temperatures, pipe sizes, hot-water storage, controls, electrical supply, access and where equipment can be serviced safely. For a fault or maintenance visit, the same whole-system view helps separate a component problem from an operating or design symptom.
The proposal should state its assumptions, including the design outside temperature, intended flow temperature, expected emitter output, hot-water strategy and any enabling work. Where information is uncertain, we explain what must be measured or confirmed rather than hiding the uncertainty inside a product allowance.
Homeowner decisions
Questions worth resolving early
Think about the rooms that are difficult to heat, how the household uses hot water, acceptable disruption, future extensions, insulation plans and the space available for cylinders, controls or outdoor equipment. These details can change the sensible sequence of work and prevent avoidable alterations later.
Performance and running cost cannot be guaranteed from a product label. The useful comparison is a written system design with clear heat-demand and tariff assumptions. We can also explain where the Boiler Upgrade Scheme may apply, while keeping grant eligibility separate from the engineering decision.
- Clear scope and responsibilities
- Property-specific assumptions
- Commissioning and handover evidence
- Maintenance and fault-support route