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Assessor with a clipboard looking at an air conditioning control panel in a plant room

TM44 air conditioning inspections in Hertfordshire

TM44 air conditioning inspections for premises in Hertfordshire, with records you can show an inspector or insurer.

  • Price confirmed before booking
  • Every system listed and checked
  • Records you can show an inspector

How much does a TM44 inspection cost in Hertfordshire?

In Hertfordshire, guide prices are about £425–£3,195 per building, plus VAT. A typical job (office or shop with 15–50 kW of air conditioning) is £425–£860 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.

Where we work around Hertfordshire

We cover all of Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City. Wherever your premises are, the survey, quote and installation follow the same steps.

Postcode districts we cover include AL1, AL8, EN7, HP4, SG6, SG13, WD6 and WD99. Compliance visits in Hertfordshire are booked around your opening hours and the paperwork is kept for you afterwards.

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

Guide prices in Hertfordshire

Prices below include our regional adjustment for the East of England (8% above the UK guide).

TM44 inspections guide prices, Hertfordshire
ItemGuide price (ex VAT)Inc VATBasis
Small building, up to about 50 kW£425–£860£510–£1,032per inspection
Medium building, 50–250 kW£745–£1,550£894–£1,860per inspection
Large or complex building£1,350–£3,195£1,620–£3,834per inspection

Ex VAT. Final price depends on the number and type of systems and site access.

What happens on a visit in Hertfordshire

  1. 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.

  2. Prepare

    Make, model, capacity, refrigerant and maintenance records are gathered for the assessor.

  3. Inspect

    The accredited assessor inspects the systems and controls on site.

  4. Act on the report

    You receive the report; we can quote for the recommended improvements.

Before you book in Hertfordshire

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 Hertfordshire 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.

Conservation areas

Historic streets and listed buildings in and around Hertfordshire are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.

Typical premises in Hertfordshire

Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).

Common questions from businesses in Hertfordshire

How much does a TM44 inspection cost in Hertfordshire?

In Hertfordshire, guide prices are around £425–£3,195 per building, plus VAT; a typical job (office or shop with 15–50 kW of air conditioning) is £425–£860 plus VAT.

Do you also cover Buckinghamshire, Bedfordshire and London?

Yes. Alongside Hertfordshire, we also cover Buckinghamshire, Bedfordshire and London. Each has its own page with local guide prices.

Is a TM44 the same as an EPC?

No. An EPC rates the whole building's energy performance. A TM44 is a separate inspection of the air conditioning systems.

Do I need a TM44 inspection?

In England, Wales and Northern Ireland, yes if the air conditioning you control in a building adds up to more than 12 kW of effective rated output, at least every five years. In Scotland, systems of 12 kW or more need inspecting (separate units count together only where centrally controlled), at intervals set by the accredited expert.

Get a guide price for Hertfordshire

The visit price is agreed before we book. We reply with a guide price or available dates.

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