Fan Coil Unit Services
Fan Coil Unit Repair in London & the M25
Repair of fan coil units that have stopped running, stopped heating or cooling, become noisy or started leaking, diagnosed and fixed on the first visit where parts allow. We cover fan coil unit repair for homeowners, landlords, managing agents and commercial sites across every London borough and the wider M25. Engineer time is £120+VAT per hour with a one hour minimum, and parts are always quoted in writing before they are fitted.
Quick answer
Who provides fan coil unit repair in London, and what does it cost?
London HVAC Pro provides fan coil unit repair in London and the M25 using F-Gas certified engineers. Engineer time is £120+VAT per hour with a one hour minimum and no call-out fee, parts are quoted in writing before fitting, and same-day attendance is usually available. Call 07427 826446 to book.
More answers: faults and causes, service costs, areas we cover.
Fan Coil Unit Repair explained
Repair of fan coil units that have stopped running, stopped heating or cooling, become noisy or started leaking, diagnosed and fixed on the first visit where parts allow.
- On-site diagnosis and fault isolation: Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
- Fan motor and capacitor replacement: Operation, mechanical condition and control demand must be separated before condemning the drive.
- Valve, actuator and PICV replacement: Check movement, control command and the effect on flow together; the actuator and valve body can fail independently.
- Condensate pump and trap repair: Confirm where condensate should discharge and whether the obstruction, pump or drainage arrangement is responsible.
- Control and sensor replacement: Compare the input reading, requested output and actual equipment response; an error code is a starting point, not a diagnosis.
- Coil leak assessment: Interpret readings against operating conditions and equipment specification; do not assume a recharge is the answer.
- Post-repair performance test: Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
Interpreting the reported fault
Check fan response, filter condition, valve operation, coil condition and condensate drainage. A working fan does not establish that the water coil is receiving the required flow.
- Reported symptom: a unit that has stopped running, stopped conditioning or started leaking
- Record when the problem started and any recent changes
- Keep fault codes and model details for the assessment
Define the repair and the return-to-service check
A useful repair scope names the affected component, any related fault and the checks needed afterwards. Ask what is included in labour, which parts are additional and how performance will be assessed under the equipment’s normal operating conditions.
- Provide the unit location, access-panel position, controller behaviour and whether neighbouring units show the same problem.
Labour and the work to be agreed
Engineer time is £120+VAT per hour with a one hour minimum. The time and materials required depend on the diagnosed fault and access. Ask for the repair scope, any additional parts and the return-to-service checks before proceeding.
- £120+VAT per hour, one hour minimum
- Confirm the parts and labour required for the specific fault
Fan Coil Unit Repair across London
A fan coil transfers heat between room air and a water coil. The fan, control valve and building water supply all affect room output.
A fan, valve actuator or controller can often be assessed independently. Whole-unit replacement also requires access, coil duty, noise and connection compatibility to be considered.
Provide the unit location, access-panel position, controller behaviour and whether neighbouring units show the same problem.
Related fan coil unit services services
These faults often appear together — each service has its own page with costs and what we check.
Fan Coil Unit Servicing
The usual trigger for a call is weak airflow, dusty grilles and units that no longer hold set temperature. Oth…
Fan Coil Unit Maintenance
The usual trigger for a call is rising energy use, recurring faults and no planned maintenance in place. Other…
Multiple Fan Coil Unit Servicing
The usual trigger for a call is dozens or hundreds of units across floors needing servicing in one programme. …
Fan Coil Unit Fault Finding
The usual trigger for a call is an intermittent fault nobody has been able to pin down. Other signs worth acti…
Fan Coil Unit Operational Inspection
The usual trigger for a call is units suspected of underperforming but never formally tested. Other signs wort…
Fan Coil Unit Replacement
The usual trigger for a call is a unit beyond economic repair, corroded or no longer supported by parts. Other…
Fan Coil Unit Commissioning
The usual trigger for a call is new or replacement units that have never been properly set up. Other signs wor…
Fan Coil Unit Cleaning
The usual trigger for a call is dusty grilles, musty smells and dirt visible on the coil face. Other signs wor…
See every service on our plumbing and mechanical services index, or read about underfloor heating repair London.
Book fan coil unit repair in London
Tell us what the system is doing and we will send an engineer with the right parts. £120+VAT per hour, one hour minimum.
Call 07427 826446Frequently Asked Questions
Engineer labour from £120 + VAT per hour, with a 1-hour minimum. Parts and materials are quoted separately before work begins.
What's included in Fan Coil Unit Repair
- Confirmation of the reported fault on site
- Identification of the failed component and its cause
- Written quote before any chargeable parts
- Repair and return-to-service check
- Record of the work carried out
- Refrigerant handling by F-Gas certified engineers, with records kept
How Fan Coil Unit Repair works
- 1
Report the fault
Call or book online with the make, model, symptoms and any error code.
- 2
Diagnosis on site
The engineer confirms the fault and why it happened.
- 3
Written quote
You approve the quote before any chargeable parts are fitted.
- 4
Repair
The failed component is repaired or replaced.
- 5
Return-to-service check
Performance is checked under normal operating conditions.
Fan Coil Unit Repair prices
| Item | Price |
|---|---|
| Engineer labour | £120 + VAT per hour |
| Minimum charge | One hour |
| Parts and materials | Written quote before work starts |
See all rates on our prices page or read why customers choose us.
Fan Coil Unit Repair: scope, checks and next steps
Repair of fan coil units that have stopped running, stopped heating or cooling, become noisy or started leaking, diagnosed and fixed on the first visit where parts allow.
What the reported symptom tells us
a unit that has stopped running, stopped conditioning or started leaking. Record when this occurs, what changed beforehand and whether other equipment is affected. These observations narrow the investigation; they do not prove which part has failed.
A fan coil transfers heat between room air and a water coil. The fan, control valve and building water supply all affect room output.
Separate the possible causes
Check fan response, filter condition, valve operation, coil condition and condensate drainage. A working fan does not establish that the water coil is receiving the required flow.
Repair or replacement?
A fan, valve actuator or controller can often be assessed independently. Whole-unit replacement also requires access, coil duty, noise and connection compatibility to be considered.
Define the repair and the return-to-service check
A useful repair scope names the affected component, any related fault and the checks needed afterwards. Ask what is included in labour, which parts are additional and how performance will be assessed under the equipment’s normal operating conditions.
What each check helps establish
- On-site diagnosis and fault isolation
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
- Fan motor and capacitor replacement
- Operation, mechanical condition and control demand must be separated before condemning the drive.
- Valve, actuator and PICV replacement
- Check movement, control command and the effect on flow together; the actuator and valve body can fail independently.
- Condensate pump and trap repair
- Confirm where condensate should discharge and whether the obstruction, pump or drainage arrangement is responsible.
- Control and sensor replacement
- Compare the input reading, requested output and actual equipment response; an error code is a starting point, not a diagnosis.
- Coil leak assessment
- Interpret readings against operating conditions and equipment specification; do not assume a recharge is the answer.
- Post-repair performance test
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
Details to include with your job request
Provide the unit location, access-panel position, controller behaviour and whether neighbouring units show the same problem.
Related fault and service guidance
Before your engineer visits
- Photograph the rating plate so we can identify the model and refrigerant.
- Write down when the problem started and whether it is constant or intermittent.
- Clear access to the indoor unit, condenser or plant area.
- Move stock out of failing fridges or cold rooms into a working unit if you can.
- Check the isolator and circuit breaker without opening any electrical panels.
- Keep previous service sheets and F-Gas leak-check records ready for the engineer.
- Tell us about roof, ladder, permit or out-of-hours access requirements when you book.
- Let us know if water, ice or unusual noise is coming from the unit.
- Confirm who on site can sign off the written quote before extra work starts.
- Mention any recent building works, power cuts or changes to the room layout.
- Record the cabinet or room temperature at the start and end of each trading day.