Commercial air conditioning in St Helens
Air conditioning and ventilation for offices, shops, restaurants and technical rooms in St Helens.
- Free survey for new installations
- Local guide prices for 22 services
- Unit sizes, refrigerant and price set out in writing
Commercial air conditioning in St Helens
Across St Helens we fit and maintain air conditioning for offices, shops, restaurants, gyms, surgeries and technical rooms, with guide prices on every service page.
Typical prices in St Helens: a single split from £1,395 installed and a service visit from £170 for the first indoor unit, both plus VAT.
Our coverage in St Helens
St Helens is one of the main commercial centres in Merseyside, with city-centre offices, retail streets, hospitality venues and business parks on its edges.
Postcode districts we cover in St Helens include PO33 and WA10. Neighbouring towns we cover include Prescot, Ashton in Makerfield and Huyton.
In St Helens, outdoor unit positions are often the deciding factor: a rear flat roof or yard is usually straightforward, while a front elevation may need landlord or planning consent first.
For servicing and repairs in St Helens, roof and high-level access is planned in advance, so the visit is not wasted waiting for a tower or a key.
Popular services in St Helens

Ducted air conditioning
Hidden units above the ceiling, with only slim grilles on show.
From £3,395 per ducted zone, ex VAT

Air conditioning servicing
Routine servicing that keeps systems efficient, clean and within warranty.
From £170 per visit, first indoor unit, ex VAT

Air curtains
Over-door air curtains that keep heat in and cold out at open entrances.
From £1,395 per doorway, ex VAT

Heat recovery ventilation (MVHR)
Fresh air with most of the heat kept in, for offices, classrooms and studios.
From £4,850 per unit installed, ex VAT

F-gas leak checks and records
Mandatory leak checks, labelling and records for systems above the threshold.
From £140 per visit, first system, ex VAT

Office air conditioning
Quiet, efficient cooling and heating for offices, meeting rooms and co-working space.
From £2,095 per zone, ex VAT
All services and local guide prices
Air conditioning installation
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial air conditioning installation | £1,895 | per indoor unit (zone) |
| Office air conditioning | £2,095 | per zone |
| VRF and VRV systems | £2,395 | per indoor unit (whole system) |
| Ceiling cassette air conditioning | £2,095 | per cassette |
| Ducted air conditioning | £3,395 | per ducted zone |
| Split and multi-split systems | £1,395 | per system |
| Air-to-air heat pumps | £1,595 | per zone |
| Server room and comms room cooling | £3,850 | per room (duty/standby pair) |
Servicing, repairs and replacement
| Service | From (ex VAT) | Basis |
|---|---|---|
| Air conditioning servicing | £170 | per visit, first indoor unit |
| Planned maintenance contracts | £190 | per indoor unit, per year |
| Air conditioning repairs | £140 | per repair visit |
| Air conditioning cleaning | £95 | per indoor unit |
| Air conditioning replacement and upgrades | £1,595 | per indoor unit |
F-gas and TM44 compliance
| Service | From (ex VAT) | Basis |
|---|---|---|
| F-gas leak checks and records | £140 | per visit, first system |
| TM44 air conditioning inspections | £385 | per building |
| Decommissioning and refrigerant recovery | £240 | per system |
Ventilation and air quality
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial ventilation | £2,895 | per system |
| Heat recovery ventilation (MVHR) | £4,850 | per unit installed |
| Fan coil units | £65 | per fan coil serviced |
| Air handling units | £240 | per unit, per visit |
Design and specialist systems
| Service | From (ex VAT) | Basis |
|---|---|---|
| HVAC design and heat load surveys | £485 | per project |
| Air curtains | £1,395 | per doorway |
Before you book in St Helens
Access and parking
Town-centre jobs in St Helens often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Leased premises
If your St Helens premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Questions from businesses in St Helens
How much does commercial air conditioning cost in St Helens?
A single wall-mounted split typically costs £1,395–£2,395 plus VAT installed in St Helens, and a ceiling cassette £2,095–£4,850 per unit. A small shop or office with two to four indoor units usually comes to £4,850–£16,150 plus VAT.
Do you also cover Prescot, Ashton in Makerfield and Huyton?
Yes. Alongside St Helens, we also cover Prescot, Ashton in Makerfield and Huyton. Each has its own page with local guide prices.
Do you handle landlord consent?
We supply the drawings, unit data sheets and method of fixing your landlord or managing agent will ask for.
Do you service systems you did not install?
Yes. We service most commercial makes and models; tell us the make and model if you know them.
Which refrigerant do new systems use?
Most new small split systems use R32, because new single splits under 3 kg in Great Britain cannot use refrigerants with a GWP of 750 or more. Larger systems vary by equipment.
Nearby towns
Air conditioning for your premises in St Helens
Send a few details and we will arrange a survey or call you back with a guide price.