Commercial HVAC Systems and Maintenance

At Rossair, we recognise the importance of reliable commercial HVAC systems for ensuring comfort and safety in commercial and industrial environments. With dedicated offices in London and Hampshire, our nationwide services minimise downtime and maintain smooth operations throughout the UK.

Contact us todayCall 01420 566822
01420 566822

Commercial HVAC maintenance is the planned servicing of heating, ventilation and air conditioning systems - chillers, heat pumps, boilers, air handling units and BMS controls - to keep them energy-efficient, compliant and reliable. Rossair has designed, installed and maintained commercial HVAC across the UK since 1973.

1973
In trade since (52+ years)
15-30%
Energy saved by full PPM on neglected systems
4-hour
Emergency response under contract
UK-wide
Alton HQ + London (Aldgate)

Expert Service & Maintenance for Commercial HVAC Systems

Our engineers deliver commercial HVAC service, maintenance and installation tailored to how your building actually runs. From design and install through SFG20-scheduled PPM, we keep your heating, ventilation and air conditioning operating at peak efficiency - so you can focus on your core business.

What is a commercial HVAC system?

Commercial HVAC systems encompass integrated solutions designed to manage indoor temperature and air quality efficiently. Properly functioning HVAC systems are vital for creating comfortable, productive, and safe environments for employees, customers, and tenants.

How does Rossair maintain commercial HVAC systems?

Energy Efficiency

We help businesses reduce energy consumption by optimising commercial HVAC systems. Our regular inspections and adjustments enhance performance, reduce energy costs, and promote sustainability.

Preventative Maintenance

Unexpected breakdowns can be costly. Rossair proactively maintains your HVAC systems, conducting detailed inspections to identify potential issues early and ensuring continuous, reliable performance.

Compliance and Safety

Our engineers ensure your HVAC systems meet all relevant health, safety and environmental standards - SFG20, F-Gas and L8 - keeping your facility safe and compliant.

How long do commercial HVAC systems last?

Typical service life by system type, assuming a regular maintenance regime. Neglected systems usually fail at 60-70% of these figures.

System typeTypical lifespan
Split air conditioning12-15 years
VRF systems15-20 years
Air handling units (AHUs)20-25 years
Boilers15-20 years
Chillers20-25 years
Fan coil units15-20 years
Controls / BMS10-15 years

What are the best ways to maintain a commercial HVAC system?

  1. Keep Filters Clean: Regular cleaning or replacement improves air quality and efficiency.
  2. Monitor System Performance: Routine assessments help identify issues early.
  3. Remove Debris: Clearing external units maintains optimal airflow.
  4. Inspect Electrical Components: Regular checks prevent electrical faults.
  5. Address Leaks Promptly: Immediate leak repair ensures efficient operation.
  6. Professional Inspections: Regular inspections extend system lifespan and enhance performance.

Why choose Rossair as your commercial HVAC contractor?

As a commercial HVAC contractor trading since 1973, Rossair delivers HVAC service, maintenance and installation for businesses across the UK, with offices in London (Aldgate) and Hampshire (Alton). Same engineers, year after year. For air conditioning specifically, see our commercial air conditioning maintenance page - or in Hampshire, air conditioning maintenance Hampshire. For breakdowns and one-off fixes, see commercial HVAC repair (24/7); for the contract detail behind the schedule, see planned preventative maintenance. Or read our guide to choosing an HVAC contractor. Contact us today to talk through your assets and current arrangements.

Quick facts

Commercial HVAC at Rossair - the facts

System types covered, statutory frameworks, approved suppliers and where Rossair operates.

Service
Commercial HVAC - design, installation, maintenance
Offices
Hampshire (Alton HQ), London (Aldgate)
Systems covered
Chillers, heat pumps, boilers, AHUs, VRF, split AC, FCUs, BMS
PPM standard
SFG20 task grades S / M / O
Statutory
F-Gas, LRA, EICR, Gas Safe, NICEIC
Sustainability
NCZ Certified Blue Status
Reactive response
4-hour emergency under contract
Energy savings from full PPM
Typically 15-30% on neglected systems
Approved supplier
Daikin, Mitsubishi Electric, Samsung
In trade since
1973 (52+ years)
Coverage
UK-wide
Telephone
01420 566822
Frequently asked

Commercial HVAC - common questions

What does a commercial HVAC system include?
A commercial HVAC system is a coordinated set of equipment that manages indoor temperature, humidity and air quality. Typical components: chillers or heat pumps for cooling/heating production, boilers for back-up heating, air handling units (AHUs) for ventilation and filtration, ductwork and fan coil units for distribution, BMS controls for orchestration, and an electrical infrastructure. Rossair designs, installs and maintains all of these as integrated systems.
How long does a commercial HVAC system last?
Lifespans vary by component and maintenance regime. Typical expectations: split air conditioning 12-15 years, VRF systems 15-20 years, AHUs 20-25 years, boilers 15-20 years, chillers 20-25 years, fan coil units 15-20 years, controls/BMS 10-15 years (or until obsolescence). Well-maintained systems often exceed these. Neglected systems typically fail at 60-70% of expected life.
What does commercial HVAC maintenance typically cost?
Commercial HVAC PPM contracts typically run £400-£1,500 per significant unit per year depending on size, complexity and visit frequency. Boiler PPM runs £300-£800 per boiler per annum, chiller PPM £1,500-£4,000+ per chiller. Statutory work (F-Gas leak checks) is normally included in the contract. Rossair quotes bottom-up from the asset list - no flat per-square-metre rate.
When should I replace versus repair a commercial HVAC system?
Three triggers usually shift the calculation toward replacement: (1) repeat failures - if the same component fails more than twice in 18 months, replacement is usually cheaper; (2) energy efficiency - systems older than 15 years typically use 25-40% more electricity than current models, paying back replacement in 4-7 years; (3) refrigerant phase-out - R22 and R410A face F-Gas restrictions, so refrigerant-charged systems older than ~10 years should be replacement-planned.
Does Rossair work nationwide or only in the south?
Capital projects are delivered nationwide. Rossair has offices in Alton (Hampshire HQ) and London (Aldgate). The south of England is the densest coverage area because the Alton HQ is there; the London office handles M25 and the south-east. Multi-site clients with national footprints are routinely supported from those two bases with engineers travelling on-site.
Can Rossair retrofit existing commercial HVAC for decarbonisation?
Yes. Common retrofit paths: replacing gas boilers with heat pump chillers (eliminates Scope 1), upgrading to heat recovery VRF (cuts both heating and cooling demand), installing BMS upgrades for occupancy-based control, adding solar PV to feed the HVAC, and improving AHU efficiency with EC fans and heat recovery. Rossair scopes against an independently verified carbon baseline measured via the NCZ partnership.
Is Rossair a commercial HVAC contractor?
Yes. Rossair is a UK commercial HVAC contractor that has designed, installed, serviced and maintained heating, ventilation and air conditioning systems since 1973. We hold the contract, employ the engineers and own the compliance - F-Gas, SFG20, Gas Safe and NICEIC - across commercial, retail, industrial, NHS, education and care estates, from single sites to national multi-site portfolios.

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

Talk to us about your commercial HVAC

Tell us about your system - assets, condition, current arrangements. Your enquiry goes to our HVAC team. We call back within one working day.

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