Building services since 1973. The same trusted partner, fifty years on.

Rossair Group Ltd has delivered building services across the UK since 1973. Principal contractor model with directly-employed engineers, two offices (Hampshire HQ and London Aldgate), and named client relationships measured in decades, not years.

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Founded in Hampshire. Still here.

1973
Rossair Group Ltd founded in Hampshire - building services and mechanical engineering from day one.
2000s
Chichester College Group relationship begins - a 20+ year partnership covering 11 campuses across Berkshire, Surrey, Hampshire and Sussex.
2010s
London Aldgate office established to anchor M25 and South-East coverage alongside Hampshire HQ.
2024
NCZ Silver Award - independently verified carbon footprint certification. Verified: 1,181.82 tCO2e total.
2025
HVR Award for Innovative Project - heat pump chiller installation at Chichester College.

The numbers that matter

Everything here is verifiable

50+: Years trading - founded 1973
0: RIDDOR incidents in 5 years
2: UK offices: Hampshire and London
7: Sectors served
24/7: 365-day emergency coverage
2025: HVR Award for Innovative Project

On the tools

Real engineers. Real fleet.

Rossair engineers with the company van fleet

Rossair engineers at a rooftop plant installation

Rossair engineer installing a ceiling-mounted detector

Rossair engineer servicing an external air-source unit

Named account manager from day one

Same engineers year after year - no agency churn

Direct dial to your account lead - not a call centre

Technical team at every commissioning meeting

Compliance documentation issued the same day

After-hours line for existing-client emergencies

No minimum contract value

References from named estates available on request

Approved by the manufacturers. Trusted by the estates.

Named relationships. Named outcomes.

“Rossair have supported Chichester College for some 20 years across mechanical, electrical and building services, including full environmental control and design. Their depth of technical expertise and commitment to quality make them a trusted and valued partner across all 11 campuses.”
Estate Manager, Chichester College GroupEducation - 20 years, 11 campuses

“Rossair have for several years been a key and highly regarded service provider to Olympia Events, delivering compliance, maintenance and projects with customer focus at the forefront. I have no hesitation in recommending them.”
Head of FM, Olympia EventsCommercial - long-term FM partnership

“We have been working with Rossair for over a decade. They carry out weekly maintenance across our seven-storey building and have proven reliable, professional and knowledgeable. We would recommend them to anyone looking for a dependable maintenance partner.”
Administration Officer, Québec Government Office in LondonGovernment - over a decade of weekly maintenance

Join the team

We hire engineers directly - and keep them.

Mobile air conditioning and HVAC maintenance roles are open now. No agencies, named estates, real progression.

See careers at Rossair

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

Work with us on your estate

Your enquiry goes directly to our technical team. No call centres. Named engineer from day one.