BidSkim
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Service market

Air handling units contracts

UK public sector · 123 contracts awarded in the 12 months to 6 October 2026

Covering 600+ buyer portals · 5 years of records · Updated 6 October 2026 · How we count

Contracts awarded
123
Last 12 months
Median contract
£87k
Recorded value
Recorded value
£39.7m
112 of 115 main-service contracts have a published value
Buyers
73
Suppliers
86

BidSkim assigns contracts to services from the notice text. How services are assigned

What stands out

  • The five suppliers that won the most air handling units contracts took 19% of them (23 of 123).
  • Contracts awarded per quarter held steady across the period.
  • The median contract, £87k, is 37% below the median across construction & trades contracts (£139k).
  • North West had the most contracts: 18, or 15% of the total.

Who buys air handling units

By contracts awarded, the 12 months to 6 October 2026.

  1. 1UK Research and Innovation (UKRI)11 contracts
  2. 2East and North Hertfordshire Teaching NHS Trust7 contracts
  3. 3City and County of Swansea6 contracts
  4. 4Hampshire County Council5 contracts
  5. 5The Princess Alexandra Hospital NHS Trust4 contracts
  6. 6The Hillingdon Hospitals NHS Foundation Trust3 contracts
  7. 7Dorset HealthCare University NHS Foundation Trust3 contracts
  8. 8Gov Facility Services Ltd3 contracts
  9. 9Nuclear Restoration Services3 contracts
  10. 10Salford City Council3 contracts

Top air handling units contractors by contracts won

The 12 months to 6 October 2026.

  1. 1Airis Q Limited7 contracts
  2. 2Scanbur5 contracts
  3. 3Howorth Air Technology Ltd4 contracts
  4. 4J.C. Watson Mechanical Limited4 contracts
  5. 5Envirovent Limited3 contracts
  6. 6Approved Air Ltd3 contracts
  7. 7Ventilation Surveys & Services Ltd3 contracts
  8. 8GMA Air Conditioning Ltd3 contracts
  9. 9Airco Refrigeration and Airconditioning Limited3 contracts
  10. 10Artic Building Services Ltd2 contracts

Latest and largest awards

Each links to the official notice.

Latest

Largest

Contracts awarded by quarter

20Q4 2025*38Q1 202629Q2 202636Q3 20260Q4 2026*
* part quarter

Where the contracts were awarded

England 112 · Wales 8 · Scotland 3

North West18East of England17South East16South West16London15Yorkshire and The Humber13Wales8North East5Scotland3East Midlands1West Midlands1UK-wide or not stated10

What is included

Installation, upgrade, inspection and maintenance of mechanical ventilation systems, air handling units and ductwork, where cooling is not the main scope.

  • AHU replacement and installation
  • Mechanical ventilation inspection and servicing
  • Ductwork inspection, modification and maintenance
  • Tunnel and plant ventilation upgrades
  • Mobile HEPA air filtration units and their maintenance, including in hospitals
  • HEPA filter supply, including nuclear-grade filters for radioactive air handling

What is not included

  • AC-led HVAC maintenance (con.mech.air-conditioning-chillers)
  • LEV and fume cupboards (con.mech.lev-fume-extraction)
  • Smoke control and AOVs (con.fire.smoke-control-and-aov)
  • Fire and smoke dampers (con.fire.fire-and-smoke-dampers)
  • Extract fans fitted in damp and mould works (con.repair.damp-mould)
  • Ductwork and kitchen extract cleaning (cln.spec.kitchen-extract-and-ductwork-cleaning)
  • Gaseous and kitchen fire suppression (con.fire.gaseous-and-kitchen-suppression)

Often bought by the same buyers