Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery: UK Tenders, Buyers & Competition
CPV 42510000·Supplies · class·in Industrial machinery
Codes and neighbouring classes
The 8-digit CPV codes notices in this class actually use, and the other classes of the same division
42511110 Heat pumps184 notices · 39%42510000 Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery88 notices · 19%42515000 District heating boiler81 notices · 17%42512000 Air-conditioning installations50 notices · 11%42512300 HVAC packages44 notices · 9%42511100 Heat-exchange units31 notices · 7%42514310 Air filters22 notices · 5%42512500 Parts of air-conditioning machines18 notices · 4%- Lifting and handling equipment 216 · 12m
- Command and control system, printing, graphics, office automation and information-processing equipment 115 · 12m
- Miscellaneous special-purpose machinery 104 · 12m
- Pumps and compressors 96 · 12m
- Boiler installations 83 · 12m
- Cooling and ventilation equipment 52 · 12m
- Distilling, filtering or rectifying apparatus 43 · 12m
- Ventilation equipment 42 · 12m
- Lifting and handling equipment and parts 35 · 12m
- Machinery for cleaning bottles, packing and weighing and spraying machinery 34 · 12m
- All of Industrial machinery →
Open tenders in heat-exchange units
21 live at the nightly build · soonest deadline first
Who buys
All notices carrying this code · official UK_CA_TYPE where published (NHS bodies are central government authorities), else derived from the authority name
- Local authorities 26% (116 notices)
- Other public bodies 25% (111 notices)
- Central government 16% (74 notices)
- Education & universities 9% (41 notices)
- Housing associations 4% (20 notices)
- Not classified 20% (91 notices)
| Contracting authority | Type | Notices | Last 12 months | Open now |
|---|---|---|---|---|
| United Kingdom Atomic Energy Authority | not classified | 16 | 0 | 0 |
| Procurement for Housing | Other public bodies | 13 | 3 | 1 |
| Ministry of Defence | Central government | 8 | 4 | 1 |
| Foreign, Commonwealth and Development Office | Central government | 6 | 3 | 0 |
| London Borough of Southwark | Local authorities | 6 | 6 | 0 |
| Scotland Excel | not classified | 6 | 1 | 0 |
| PROCURE PLUS HOLDINGS LIMITED | Other public bodies | 5 | 1 | 1 |
| Derbyshire County Council | Local authorities | 5 | 3 | 0 |
| NHS Wales Shared Services Partnership-Procurement Services (hosted by Velindre University NHS Trust) | Central government | 5 | 1 | 0 |
| The Royal Borough of Kingston upon Thames | Local authorities | 5 | 5 | 0 |
288 distinct authorities in total · the ten most active shown.
Where the work is delivered
Delivery regions (ITL1) published on 340 of 470 notices · a notice covering several regions counts in each · competition columns: contracts awarded in the last 36 months, lots delivered in the region
| Region | Notices | Bids / lot | SME wins | Local wins |
|---|---|---|---|---|
| Scotland | — | 100% | — | |
| South East England | 7 | — | 73% | |
| North West England | 4 | 55% | 91% | |
| Greater London | 4 | — | — | |
| East Midlands | 5 | 64% | 71% | |
| Wales (Cymru) | — | — | — | |
| Yorkshire and the Humber | 4 | 60% | 85% | |
| West Midlands | — | — | — | |
| East of England | 4 | — | 83% | |
| South West England | 4 | — | 70% | |
| North East England | — | — | — | |
| Northern Ireland | — | — | — |
Local wins = the winner’s registered region is the delivery region. Dashes: fewer than ten observations.
How it is bought
Commercial tool, procedure route and threshold as published on the notice, not a legal-regime claim
- Contract 64% (300 notices)
- Framework 31% (146 notices)
- Dynamic purchasing system 5% (24 notices)
- Open 57% (269 notices)
- Route not published 21% (98 notices)
- Selective 17% (82 notices)
- Limited / restricted 4% (21 notices)
- Above threshold 65% (88 notices)
- Below threshold 35% (47 notices)
Competition
Contracts published in the last 36 months (192) · bid counts per lot from award notices · values are net contract awards, framework and DPS ceilings excluded · SME and local status as declared
- 1 bid 10% (9)
- 2–3 19% (17)
- 4–6 43% (38)
- 7 or more 27% (24)
Who wins
Single-supplier active awards with a canonical supplier on notices carrying this code · 934 awards to 376 suppliers · the five most frequent winners hold 9% of contract awards in the last 36 months
| Supplier | Awards | Last 12 months | Buyers |
|---|---|---|---|
| A. CONNOLLY LIMITED | 27 | 0 | 1 |
| JACKSON, JACKSON & SONS LIMITED | 27 | 0 | 1 |
| P Casey & Co Ltd | 24 | 0 | 1 |
| Westhoughton Roofing & Pointing Services | 18 | 0 | 1 |
| CLC Contractors Limited | 16 | 1 | 4 |
| DFP SERVICES LIMITED | 14 | 0 | 1 |
| Bell Decorating Group Limited | 13 | 0 | 3 |
| BAAS Construction Ltd | 13 | 0 | 1 |
Where to submit
E-sourcing portals named in the submission address · 179 of 470 notices name one · each portal page explains registration
Method
What the numbers on this page are and are not
Which notices count?
Every Find a Tender notice that carries a CPV code starting 4251. A notice with several codes counts in each sector it names. Earliest notice 2021; latest 18 Sept 2026.
Competition figures
From the 36-month lot-grain contest statistics: a lot counts where its own CPV codes (or, for single-class notices, the procedure’s) start 4251. Bids per lot come from the award notice’s bid statistics; “competed” means an open or selective route with no direct-award transparency notice; contract values are net, on single-supplier awards, with framework and DPS ceilings excluded. Frameworks and dynamic purchasing systems are reported separately because their “bids” are admissions to a panel.
Why no total value or month-by-month chart?
Sums of notice estimates repeat framework ceilings and mix net with gross. Monthly volumes per sector are not shown yet: the catalogue’s CPV coverage per notice changed in May 2026 (compiled records carry every lot’s codes), so a curve would show the catalogue, not the market.