HVAC and mechanical engineering, planned maintenance, decarbonisation, MEP installations and renewable energy across your estates - delivered by a UK building services and mechanical engineering contractor clients have trusted since 1973. Same engineers at year one and year ten.
Rossair is a UK building services and mechanical engineering contractor, established 1973. We design, install and maintain HVAC and mechanical & electrical (M&E) systems - planned maintenance, decarbonisation, MEP installations and renewable energy - for NHS healthcare, education, care and commercial estates across the UK.
Service & Maintenance
Reactive response and planned preventative contracts, 24/7 365.
Retrofit & Compliance
Stage 4 mechanical retrofit within live, occupied buildings.
Renewable Energy
Solar PV, battery storage, and EV charging across commercial estates.
Mechanical & Electrical
Full M&E design and installation for new-build and major refurbishment.
Design & Consultancy
Technical consultancy from feasibility through RIBA Stages 2-5.
“Decarbonisation embedded into decision-making, not treated as an add-on - delivered while the building stayed fully operational.”
- Wembley Health Centre, NHS
“We were impressed with how quickly the new system was delivered and installed, with minimal disruption to campus activities.”
- Estates Manager, Chichester College
“Rossair have for several years been a key and highly regarded service provider to Olympia Events. I have no hesitation in recommending them.”
- Head of FM, Olympia Events
Directly employed engineers and a liveried fleet, not a chain of subcontractors. The people who start on your estate are the people who stay.
If we’re not the right fit, we’ll tell you who is
Your enquiry goes directly to our technical team - not a call centre. We call back within one working day.
