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Facilities management / Estate programmes

Multi-Site TM44 Inspections: Planning a Defensible Estate Programme

Multi-site air-conditioning compliance is not a single certificate covering every building. Offices, retail premises, hotels and public estates can have different system capacities, controlling parties, inspection dates and local access arrangements. A defensible programme begins with a site-level evidence register.

In England and Wales the TM44 framework generally covers qualifying air-conditioning systems whose effective rated output exceeds 12 kW, subject to relevant system-grouping and control arrangements. Inspectors must be appropriately accredited; Scotland and Northern Ireland require jurisdiction-specific review.

The essentials

What you need to know

  • Create a separate site and system record for each property, including UNKNOWN values.
  • Verify existing inspection reports and the actual cooling systems they cover.
  • Agree assessor competence, site access and reporting deliverables before grouping visits.
  • Use genuine report dates for renewal planning rather than a single assumed estate deadline.
01 / 06

Build a usable estate inventory

Start with site addresses, building operators, cooling system types, known rated outputs, controls and past inspection records. A multi-let property may contain separately operated systems and should not be assessed as one undifferentiated item.

When no asset list is available, label capacity and responsibility UNKNOWN pending a technical review. Avoid guessing equipment totals to obtain a single attractive price.

  • Full address and building identifier
  • Known plant and cooling kW
  • Controlling person and site access contact
  • Last report, inspection date and registration reference
  • Unknown system information and scope exclusions
Review the estate evidence snapshot
02 / 06

Differentiate the statutory duty from optional works

TM44 assesses relevant energy performance, sizing and controls; it is not refrigerant leak testing, routine maintenance or a commercial EPC. Adding optional chiller work or F-Gas checks may require separately qualified contractors and written scopes.

A coordinating provider may organise multiple technical workstreams, but each deliverable should identify its responsible professional and actual evidence.

Compare commercial HVAC workstreams
03 / 06

Check accredited assessor coverage before committing

Availability, accreditation scope and travel arrangements may differ between systems and regions. Do not promise a single assessor, inspection date or immediate registered certificate across the UK before capacity is verified.

A robust quotation distinguishes assumed plant counts, access, any additional attendance, VAT, report preparation and applicable lodgement responsibilities.

What to provide for an accurate quote
04 / 06

Plan access across different premises

An FM programme should group sites by region and operating restrictions only where efficient and safe. Hospitals, data centres, entertainment premises and rooftop plant may require escorts, induction or restrictive attendance windows.

Provide a nominated manager for each site; agreed access to building controls and plant areas matters more than a generic national appointment promise.

Understand the inspection process
05 / 06

Retain report and renewal evidence

Record the actual date of each accredited inspection, relevant building and systems examined, named assessor and registered reference where applicable. The England and Wales maximum periodic interval is five years for qualifying systems, but the next action must reflect verified reports and any later system changes.

Finding or failing to find a postcode result cannot alone certify every installation at the property. Keep the report scope and newer plant inventory together.

Check report evidence
06 / 06

Request a phased commercial programme

Send an initial site count, geographic spread, approximate plant information and preferred procurement deadline. The office can identify further evidence required before confirming the full scope.

Commercial agreements may provide separate milestones and site batches, but an enquiry is not an accepted appointment or proof that particular subcontractors have been engaged.

Request a multi-site TM44 quotation
Verification / Official sources

Check the governing guidance

This article does not authenticate a government register entry or establish the status of an individual building. Confirm the applicable national framework and the actual installed equipment before relying on a compliance conclusion.

England and Wales legal points are anchored in current government publications and the regulations. Technical applicability for a specific building still requires its actual system information.