TM44
Air conditioning inspections (TM44)
Inspections of air conditioning systems with an effective rated output over 12 kW, at least every five years, as the regulations require.
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Energy certificates
Commercial EPC
We arrange a non-domestic Energy Performance Certificate for commercial premises, carried out by an accredited non-domestic energy assessor. The EPC and its recommendation report are lodged on the government register.
When you need it
You need an EPC when you sell or let commercial premises, when a new building is finished, and when a building is altered to create more or fewer separately occupied units and the work adds or extends heating, air conditioning or mechanical ventilation. Some buildings are exempt, including certain temporary buildings, places of worship and detached buildings under 50 square metres, so check before you order.
Privately rented commercial premises must reach at least band E, including existing lettings since 1 April 2023, unless a valid exemption is registered on the PRS Exemptions Register. In June 2026 the government announced that rented buildings over 1,000 square metres will need band B from 2031 where cost effective, but this needs new legislation and is not yet law.
Premises over 500 square metres that are frequently visited by the public must display their EPC where one has been produced.
What is included
Included
- Visit by an accredited non-domestic energy assessor
- Survey of the building fabric, heating, cooling, ventilation, hot water and lighting
- Energy model to the government-approved method
- EPC and recommendation report lodged on the national register
Priced separately
- Improvement works
- Measured surveys or floor plans where no drawings exist
- Air conditioning inspections (TM44), which are a separate legal duty
- Design-stage SBEM calculations for new buildings
Your written quotation confirms the exact scope, what is included and any limits for your building.
What you receive
A non-domestic EPC showing the building’s energy rating, with a recommendation report, both lodged on the government register. You receive copies for buyers, tenants and your records.
Sent as a PDF for your records. We can send copies to tenants or agents on request.
Our reports support your duties as owner, landlord or responsible person. They do not replace those duties.
How to prepare
- Address, approximate floor area and the use of each area
- Floor plans, if you have them
- Details of heating, cooling, ventilation and lighting
- Access to all areas, including plant rooms and roof spaces
- Whether the premises are being sold, let or newly completed
- Your previous EPC, if there is one
Send what you have. Missing details will not stop an enquiry; we will tell you anything still needed.
How it works
Tell usChoose the service or describe the job.
Written quotationScope, deliverables and price, confirmed in writing.
We manage the workArranged and coordinated by RegulaBuild. Technical work is carried out by appropriately qualified professionals.
Your reportThe output named in your quotation, with any follow-up.
Questions
What rating does a let commercial property need?
At least band E, unless a valid exemption is registered. A higher standard for larger buildings has been announced but is not yet law.
Do I need floor plans?
They help the assessor work accurately. If you have none, the assessor measures on site; a full measured survey is a separate service.
Is a commercial EPC the same as a DEC?
No. An EPC rates the building itself and is needed for sale, letting or construction. A DEC shows actual energy use and applies to larger buildings occupied by public authorities and frequently visited by the public.
Often booked with
Combine them in one quote request
DEC
Display Energy Certificates
DECs for buildings over 250 square metres occupied by a public authority and frequently visited by the public, based on actual energy use.
Energy certificatesView service
Part L
SBEM and BRUKL calculations
Energy compliance calculations for new buildings other than homes, and some extensions, with the BRUKL output report.
Energy calculationsView service
Where we work
Commercial EPC across England
Request a quote
Discuss commercial epc
Start with this service and add anything else you need. If you are unsure, say so and we will advise.