In short
Commercial HVAC servicing is a scheduled visit in which an engineer checks, cleans, tests and adjusts specific equipment, records its operating readings and reports its condition. It can be a one-off service, an annual service of a few units, or part of a wider planned maintenance programme across a building.
What HVAC servicing involves
A service visit focuses on the condition and performance of each unit. Typical tasks include:
- filter inspection, cleaning or replacement
- coil, fan and casing cleaning
- condensate tray, drain and pump checks
- fan, belt and bearing checks
- electrical connections and current draw
- controls, sensors and setpoint checks
- refrigerant system checks and leak checks where required
- recording operating temperatures and pressures
When servicing is needed
- at the frequency recommended by the manufacturer or your maintenance schedule
- before the cooling season, so systems are ready for summer peaks
- before the heating season for heat pumps and heating plant
- after a period when a building or floor has been unoccupied
- when taking over a building or a lease
Equipment we service
| Equipment | Service focus |
|---|---|
| Split, cassette and VRF/VRV air conditioning | Filters, coils, drains, refrigerant checks, controls |
| Air handling units | Filters, fans, belts, coils, dampers, humidifiers |
| Fan coil units | Filters, drains, valves, fan operation |
| Chillers | Operating readings, alarms, condenser condition |
| Heat pumps | Coils, defrost, flow temperatures, refrigerant checks |
| Ventilation fans | Motors, belts, bearings, controls |
Our process
- Send us the equipment list, or ask us to survey the site.
- We agree the service tasks and a date that suits the building.
- Engineers attend, carry out the service and record readings.
- You receive a service record with condition notes and recommended actions.
Typical applications
Annual servicing of office air conditioning, pre-summer servicing of retail and hotel systems, server room cooling checks and heat pump servicing.
Maintenance considerations
Servicing works best when it follows a written task list. If units are serviced ad hoc, records become patchy and faults are missed. Consider rolling regular servicing into a maintenance contract so visits happen automatically.
Compliance and safety
Records are evidence. Service records support your legal duties for workplace ventilation and temperature, F-gas leak checks and TM44 inspections. Keep them together and accessible.
F-gas leak checks and refrigerant work must be done by certified engineers. TM44 energy inspections are separate from servicing and are carried out by accredited energy assessors.
Coverage across London
We take servicing enquiries across London and Greater London. See areas we cover.
HVAC Servicing: frequently asked questions
What is the difference between HVAC servicing and maintenance?
The terms overlap. Servicing usually means a visit to service specific equipment, often annually. Maintenance usually means a planned programme covering all the building's HVAC assets on set frequencies. A maintenance contract will include servicing visits.
How often should commercial air conditioning be serviced?
Commercial air conditioning is commonly serviced at least once or twice a year, with more frequent filter checks in dusty or heavily used spaces. Systems above the F-gas thresholds also need leak checks at set intervals.
Can you service just one or two units?
Yes. We service individual units as well as whole buildings. Tell us how many units there are and where they are located when you enquire.
What do I receive after a service visit?
You receive a service record listing the equipment visited, the tasks completed, readings taken, the condition found and any recommended remedial work.
Do I need to be on site during the service?
Someone needs to arrange access to plant rooms, roofs and ceiling voids and confirm any permit-to-work requirements. You do not need to stay with the engineer throughout.
UK guidance and references
Primary and industry sources relevant to this subject. Always check the current edition and how it applies to your building.