About AirCert — TM44 Inspection Specialists for the North East

Why AirCert Exists as a Dedicated TM44 Inspection Business

TM44 inspection is a legal requirement that too many North East businesses either overlook or struggle to arrange through a qualified, specialist provider. AirCert was founded specifically to solve this problem — delivering expert, Elmhurst-accredited air conditioning compliance services to commercial building owners and facilities managers across Middlesbrough, Teesside, and the wider North East and Yorkshire region.

Before AirCert, most businesses in the region turned to generalist contractors who offered this work as a secondary service alongside heating, ventilation, or general building maintenance. The results were inconsistent, the expertise variable, and the certificates sometimes legally questionable. AirCert was built to be different — a business focused exclusively on TM44 inspection, with the qualifications, processes, and local knowledge to do it properly every time.

Our TM44 Inspection Qualifications — Dual Elmhurst Accreditation

AirCert holds both Level 3 and Level 4 accreditation through Elmhurst Energy, the UK’s leading government-approved energy assessor accreditation body. This dual qualification is the highest available for TM44 inspection work in England and Wales, and it matters enormously in practice.

Level 3 covers the full range of standard commercial air conditioning systems — split units, multi-splits, packaged rooftop units, fan coil units, and ceiling cassette systems. Level 4 extends to complex installations: variable refrigerant flow (VRF) systems, centralised chilled water plant, large-scale air handling units, and building management system-controlled installations across multiple zones.

Many providers in the North East hold only Level 3 accreditation. This creates a hidden risk for building owners — an L3-only assessor cannot legally certify VRF systems or complex centralised plant. Any certificate they produce for such installations is invalid, leaving the building operator exposed to enforcement action despite believing they are compliant. AirCert’s dual accreditation eliminates this risk entirely.

What Makes Our TM44 Inspection Service Different

Every assessment AirCert carries out follows the full CIBSE TM44 methodology — not an abbreviated version designed to tick boxes quickly. We examine the physical condition of all accessible air conditioning equipment, assess operational efficiency against current standards, review maintenance records and refrigerant documentation, and evaluate control systems for both compliance and energy performance. The result is a service that genuinely helps building managers understand their systems, not just a certificate to file away.

Reports are written in plain English. Where the assessment identifies improvement opportunities, we explain what they are, why they matter, and what implementing them would realistically involve. Building managers tell us consistently that the advisory report is as valuable as the certificate itself — because it gives them a practical roadmap for reducing energy costs and improving system performance over the coming years.

Pricing is fixed and transparent. Every quote includes all costs — no hidden travel charges, no surprise additions for complex systems, and no fees for the report itself. Request a quote today and receive a clear, fixed price within the same working day.

TM44 Inspection Coverage Across the North East and Yorkshire

AirCert is based in Middlesbrough, giving us efficient access to the entire North East and Yorkshire region. We regularly carry out work across Teesside, County Durham, Sunderland, Newcastle, and the full length of North Yorkshire — from the coastal hospitality businesses of Scarborough and Whitby to the professional offices of Harrogate and York.

Local knowledge matters for this type of work. We understand the building types common across the region — Victorian commercial properties converted to modern office use, post-war industrial units repurposed for light manufacturing, purpose-built retail parks, NHS facilities, educational buildings, and the growing portfolio of new-build commercial developments across the Tees Valley. This familiarity means our TM44 inspection assessments are efficient, focused, and relevant to the specific context of each building.

National firms often struggle to deliver responsive service across this region. Long travel times, unfamiliarity with local building stock, and centralised administration create delays. As a North East-based specialist, AirCert can typically arrange appointments within days rather than weeks, and clients speak directly with the accredited assessor throughout — not a call centre or account management team.

TM44 Inspection for Every Sector and Building Type

AirCert carries out compliance assessments for commercial buildings across every sector. The legal requirement applies to any building with air conditioning systems totalling 12kW or more — a threshold that covers the majority of commercial premises with any meaningful cooling provision.

• Commercial offices — from single-floor suites to multi-storey headquarters across Middlesbrough, Newcastle, Durham, and beyond
• Retail premises — high street units, shopping centres, supermarkets, and out-of-town retail parks
• Industrial and logistics facilities — warehouses, distribution centres, and manufacturing plants with climate-controlled areas
• Healthcare buildings — NHS trusts, private hospitals, dental practices, GP surgeries, and care homes
• Hotels and hospitality — boutique hotels, large conference venues, restaurants, and leisure facilities
• Educational establishments — schools, colleges, universities, and training facilities
• Public sector buildings — council offices, libraries, leisure centres, and NHS facilities

For landlords and property managers overseeing multiple buildings, AirCert offers coordinated programmes with consistent reporting standards, grouped scheduling to reduce costs, and a rolling calendar that ensures no certificate expires unnoticed. Learn more about our full service.

Case Study: Resolving a Critical TM44 Inspection Compliance Gap

A four-storey office building in central Middlesbrough contacted AirCert after discovering they had never obtained a compliance certificate despite having air conditioning installed for over eight years. The building housed multiple tenants across professional services, creative agencies, and technology firms — all relying on the landlord to maintain building compliance.

With a combined AC capacity exceeding 70kW across twelve units, the building was firmly within the scope of the regulations. Without a valid certificate, the landlord faced potential enforcement action and penalties of up to £300 per breach — and a real risk that the gap would surface during lease renewals or property refinancing.

AirCert completed the TM44 inspection within five working days. We assessed all twelve units, reviewed maintenance documentation, and produced a detailed report covering compliance status and energy efficiency improvements. The certificate was issued promptly. Beyond resolving the compliance gap, the assessment identified one unit operating well below efficiency due to an undetected refrigerant leak — addressing it delivered measurable energy savings and extended the equipment’s lifespan.

Frequently Asked Questions

Does my building need a TM44 inspection? If your commercial premises operates air conditioning systems with a combined effective rated output of 12kW or more, yes — it is a legal requirement under the Energy Performance of Buildings Regulations 2012.

How often is one required? Every five years. Once your certificate expires, you are non-compliant until a new assessment is completed. There is no grace period.

How long does a TM44 inspection take? For a straightforward single-system building, typically one to two hours on site. Larger or more complex buildings may require half a day or more.

What does it cost? Costs vary depending on building size, system complexity, and location. AirCert provides fixed quotes with no hidden charges. Get a quote today — we typically respond within a few hours.

Book Your TM44 Inspection Today

Whether your building has never had a compliance assessment or your existing certificate is approaching its five-year expiry, AirCert makes the process straightforward. We provide honest, upfront quotes, arrange appointments at times that suit your operations, and issue certificates promptly after completing the work.

As the North East’s dedicated TM44 inspection specialist, AirCert combines genuine technical expertise with the responsive, personal service that only a local operator can deliver. Every client receives proper compliance documentation, practical efficiency recommendations, and the confidence that their certificate will stand up to any scrutiny. Get in touch to arrange your assessment or request a no-obligation quote.