TM44 air conditioning inspections in Isleworth
Stay compliant in Isleworth: TM44 air conditioning inspections arranged, recorded and followed up.
- Price confirmed before booking
- Every system listed and checked
- Records you can show an inspector
How much does a TM44 inspection cost in Isleworth?
In Isleworth, guide prices are about £505–£3,795 per building, plus VAT. A typical job (office or shop with 15–50 kW of air conditioning) is £505–£995 plus VAT. The price is confirmed before booking.
A TM44 inspection is the air conditioning energy assessment required for systems with a combined effective rated output above 12 kW.
Working in Isleworth
Isleworth sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
That includes premises in TW7 and the surrounding districts. We also work in nearby Hounslow, Heston and Richmond. We give you the records in a form an inspector, insurer or landlord can read, and remind you when the next check is due.
What you get
- Check of whether your systems meet the 12 kW threshold for your nation
- Collection of system details, records and drawings
- Report with recommendations, lodged where the rules require
- Quote for any recommended improvements
- Reminder before the next inspection is due
TM44 inspections prices in Isleworth
Prices below include our regional adjustment for London (28% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Small building, up to about 50 kW | £505–£995 | £606–£1,194 | per inspection |
| Medium building, 50–250 kW | £890–£1,850 | £1,068–£2,220 | per inspection |
| Large or complex building | £1,595–£3,795 | £1,914–£4,554 | per inspection |
Ex VAT. Final price depends on the number and type of systems and site access.
What happens on a visit in Isleworth
Check the threshold
We work out the effective rated output of the systems you control and whether they count together under the rules for your nation.
Prepare
Make, model, capacity, refrigerant and maintenance records are gathered for the assessor.
Inspect
The accredited assessor inspects the systems and controls on site.
Act on the report
You receive the report; we can quote for the recommended improvements.
What to think about in Isleworth
England and Wales
Under the Energy Performance of Buildings (England and Wales) Regulations 2012, systems over 12 kW need inspecting at least every five years by an accredited assessor, with the report lodged on the national register. Local Trading Standards enforce it, with a £300 penalty for not having a valid report.
Access and parking
Town-centre jobs in Isleworth often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Not an F-gas check
A TM44 inspection is about energy efficiency. It does not replace F-gas leak checks or servicing.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Who we work with in Isleworth
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
FAQs for Isleworth
How much does a TM44 inspection cost in Isleworth?
In Isleworth, guide prices are around £505–£3,795 per building, plus VAT; a typical job (office or shop with 15–50 kW of air conditioning) is £505–£995 plus VAT.
Do you also cover Hounslow, Heston and Richmond?
Yes. Alongside Isleworth, we also cover Hounslow, Heston and Richmond. Each has its own page with local guide prices.
Which postcodes do you cover in Isleworth?
All of them, including TW7. Give us your postcode when you enquire and we will confirm the visit details.
Who can carry out a TM44 inspection?
Only an accredited air conditioning energy assessor (in Scotland, an accredited expert under an approved protocol organisation). We arrange the inspection through one.
Does a TM44 include a leak check?
No. F-gas leak checks are a separate legal requirement, usually done during servicing.
Need TM44 air conditioning inspections in Isleworth?
The visit price is agreed before we book. We reply with a guide price or available dates.