Commercial Air Conditioning in London

Air conditioning installation, servicing and repair for London offices, hotels, retail and mixed-use buildings - run from our Aldgate office, with 24/7 reactive cover.

Get a London AC proposal Call 01420 566822

01420 566822

Rossair is a commercial HVAC contractor covering all of Greater London from its Aldgate office. We install, service and repair air conditioning - splits, multi-splits, VRF and heat pump systems - for offices, hotels, media and retail sites, with SFG20-scheduled PPM, F-Gas compliance and a 4-hour emergency response under contract.

Aldgate: London office, E1
4-hour: Emergency response under contract
24/7: Reactive cover, 365 days
1973: HVAC contractor since

HVAC contractors that work around London buildings

London air conditioning work rarely happens on an empty site. Occupied floors, restricted loading bays and building managers who need the work done overnight are normal, so out-of-hours installation and servicing is a standard part of the service. Current London clients include Crowne Plaza Albert Embankment and Bauer Media UK.

Commercial air conditioning services in London

Installation and replacement

Design, supply and installation of splits, multi-splits, VRF and heat pump systems for offices, schools, care homes, retail and industrial sites in London. Rossair is a Daikin, Mitsubishi Electric and Samsung approved supplier, and replacement is planned from the maintenance history rather than forced by a failure.

Servicing and PPM contracts

SFG20-scheduled servicing - biannual as standard, quarterly for high-use sites. Filters, coils, refrigerant checks, electrical tests, condensate drains and controls validation, with a service report after every visit.

Breakdown repair, 24/7

Failed cooling in a server room, office floor or ward is a business problem. Contract clients get a 4-hour emergency response, 24/7, 365 days, and a 24-hour job report after every reactive visit. One-off repair calls are taken too.

F-Gas and TM44 compliance

F-Gas certified engineers on all refrigerant work, statutory leak-check records kept for the 5-year requirement, and TM44 air conditioning inspections for systems above 12 kW.

Where we work in London

All of Greater London - the City, West End, Canary Wharf, the boroughs and out to the M25. The Aldgate office handles enquiries, helpdesk coordination and engineer dispatch, with engineers from the Hampshire HQ supporting larger installations and multi-site contracts.

Why commercial clients stay with Rossair

We show up. We do it properly. We send the paperwork. A named account manager, the same engineers year after year, and a compliance pack your auditor can actually use. Rossair has been looking after commercial building services since 1973, and the contracts that last longest are the ones where nobody has to chase us.

Quick facts

Commercial air conditioning in London - the facts

Coverage, services, standards and approvals for commercial air conditioning in London.

Service: Commercial air conditioning installation, servicing and repair - London
London office: Runway East, The Hickman Building, London E1 1EW (Aldgate)
Coverage: All of Greater London + M25
Out-of-hours work: Standard - installation and servicing around occupied buildings
Named London clients: Crowne Plaza Albert Embankment, Bauer Media UK
Systems: Splits, multi-splits, VRF, heat pumps, close-control
Approved supplier: Daikin, Mitsubishi Electric, Samsung
Service standard: SFG20 - biannual as standard, quarterly for high-use sites
Statutory: F-Gas leak checks, TM44 inspections (12 kW+)
Reactive response: 4-hour emergency under contract, 24/7, 365 days
In trade since: 1973
Telephone: 01420 566822

Frequently asked

Commercial air conditioning in London - common questions

Does Rossair install commercial air conditioning in London?

Yes. Rossair designs, supplies and installs commercial air conditioning across London - splits, multi-splits, VRF and heat pump systems - as a Daikin, Mitsubishi Electric and Samsung approved supplier. Work in occupied buildings is routinely planned out of hours.

Does Rossair repair air conditioning in London?

Yes. Commercial AC repair across London runs from the Aldgate office, 24/7. Contract clients get a 4-hour emergency response, and a 24-hour job report follows every reactive visit. One-off repair calls are also taken.

How often should commercial air conditioning be serviced in London?

Twice a year as standard - a pre-summer and a pre-winter visit - scheduled to SFG20. Hotels, server rooms, restaurants and other high-use sites need quarterly attention.

Which areas of London does Rossair cover?

All of Greater London - the City, West End, Canary Wharf, the boroughs and out to the M25 - from the Aldgate office at Runway East, The Hickman Building, E1 1EW.

What does commercial air conditioning maintenance cost in London?

A biannual PPM contract typically runs £150-£400 per split system per year, with VRF systems priced on indoor and outdoor unit count. Installation is quoted per project after a site survey. Multi-site estates are priced bottom-up from the asset list against the SFG20 task schedule, not per square metre.

Are Rossair engineers F-Gas certified?

Yes. All refrigerant-circuit work - leak checks, recovery, re-gassing and compressor work on splits, VRF and chillers - is carried out by F-Gas certified engineers, as UK law requires. Leak-check records are kept for the 5-year requirement, and TM44 inspections are available for systems above 12 kW.

If we’re not the right fit, we’ll tell you who is

Get a London air conditioning proposal

Tell us about your systems - unit count, sites, current arrangements. Your enquiry goes straight to the team. We call back within one working day.