Mechanical installations: UK Tenders, Buyers & Competition
CPV 45350000·Works · class·in Construction & Civil Engineering
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Tenders you can still bid for.
Notices at tender stage whose deadline has not passed, counted the way the search counts them: a notice shows under every code and region it names.
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Notices published in the last 12 months.
Counted per tender, not per lot, against the 12 months before where shown.
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What a contract here is usually worth.
Middle value of published award values, VAT excluded. Framework ceilings are left out because they are not real contract values.
Based on 68 awards with a usable value, last 36 months.
Published values, not actual spend.
Newest open tenders
1 of 19 open for bids now · newest first
| Notice | Authority | Deadline | Days left | Published value |
|---|---|---|---|---|
| Boiler & Mechanical Specialist Remedials, Minor Works and New Installations | KENT COMMUNITY HEALTH NHS FOUNDATION TRUST | 10 Nov 2026 | 15d | £250,000 |
Codes and neighbouring classes
The 8-digit CPV codes notices in this class actually use, and the other classes of the same division
45351000 Mechanical engineering installation works43 notices · 29%45350000 Mechanical installations38 notices · 26%- Building construction work 1,618 · 12m
- Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork 889 · 12m
- Roof works and other special trade construction works 880 · 12m
- Other building completion work 706 · 12m
- Electrical installation work 699 · 12m
- Building demolition and wrecking work and earthmoving work 464 · 12m
- Joinery and carpentry installation work 355 · 12m
- Plumbing and sanitary works 340 · 12m
- Fencing, railing and safety equipment installation work 218 · 12m
- Engineering works and construction works 185 · 12m
- All of Construction & Civil Engineering →
Who buysi
Which buyers publish the most notices here.
Buyers ranked by the number of notices, duplicate names merged.
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Which buyers publish the most notices here.
Buyers ranked by the number of notices, duplicate names merged.
All notices carrying this code · official UK_CA_TYPE where published (NHS bodies are central government authorities), else derived from the authority name
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What kinds of public bodies buy here.
Notices by the buyer’s type as published, otherwise by its name.
Local authorities48%(68 notices)
68 of 143 notices are Local authorities (48%).Central government19%(27 notices)
27 of 143 notices are Central government (19%).Other public bodies14%(20 notices)
20 of 143 notices are Other public bodies (14%).Education & universities10%(14 notices)
14 of 143 notices are Education & universities (10%).NHS & health2%(3 notices)
3 of 143 notices are NHS & health (2%).Not classified8%(11 notices)
11 of 143 notices are Not classified (8%).
| Contracting authority | Type | Notices | Last 12 months | Open now |
|---|---|---|---|---|
| Hampshire County Council | Local authorities | 33 | 33 | 0 |
| Nuclear Restoration Services Limited | Other public bodies | 7 | 3 | 0 |
| The Mayor and Commonalty and Citizens of the City of London | Local authorities | 4 | 4 | 0 |
| Arc Property Services Partnership Limited | Other public bodies | 3 | 3 | 0 |
| London Borough of Richmond upon Thames | Local authorities | 3 | 3 | 0 |
| City & County of Swansea | Local authorities | 2 | 0 | 0 |
| Croydon Health Services NHS Trust | Central government | 2 | 0 | 0 |
| Hull City Council | Local authorities | 2 | 2 | 0 |
| LIVERPOOL HOPE UNIVERSITY | Education & universities | 2 | 1 | 0 |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | NHS & health | 2 | 1 | 0 |
94 distinct authorities in total · the ten most active shown.
Where the work is deliveredi
Where the work on these notices is delivered.
Delivery regions published on the notices. A notice with several regions counts in each.
Where the work is, not where the buyer is based.
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Where the work on these notices is delivered.
Delivery regions published on the notices. A notice with several regions counts in each.
Where the work is, not where the buyer is based.
Delivery regions (ITL1) published on 112 of 146 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 |
|---|---|---|---|---|
| South East England | — | 58% | 83% | |
| Greater London | — | — | — | |
| East of England | — | — | — | |
| East Midlands | — | — | — | |
| North West England | — | — | — | |
| Yorkshire and the Humber | — | — | — | |
| West Midlands | — | — | — | |
| North East England | — | — | — | |
| Wales (Cymru) | — | — | — | |
| South West England | — | — | — | |
| Scotland | — | — | — | |
| Northern Ireland | — | — | — |
Local wins = the winner’s registered region is the delivery region. Dashes: fewer than ten observations.
How it is boughti
How work here is packaged.
Notices by commercial tool: a single contract, a framework, or a dynamic purchasing system.
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How work here is packaged.
Notices by commercial tool: a single contract, a framework, or a dynamic purchasing system.
Commercial tool, procedure route and threshold as published on the notice, not a legal-regime claim
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How work here is packaged.
Notices by commercial tool: a single contract, a framework, or a dynamic purchasing system.
Contract88%(128 notices)
128 of 146 notices are Contract (88%).Framework12%(17 notices)
17 of 146 notices are Framework (12%).Dynamic purchasing system1%(1 notices)
1 of 146 notices are Dynamic purchasing system (1%).
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Which procedures buyers here use.
Notices by the procedure they declare: open, selective, limited or direct. Open and selective are competitions; limited and direct are not.
Open29%(43 notices)
43 of 146 notices are Open (29%).Selective27%(39 notices)
39 of 146 notices are Selective (27%).Limited / restricted17%(25 notices)
25 of 146 notices are Limited / restricted (17%).Direct award14%(20 notices)
20 of 146 notices are Direct award (14%).Route not published13%(19 notices)
19 of 146 notices are Route not published (13%).
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How much of this market is above the legal threshold.
Notices by whether the buyer marked them above or below the threshold that triggers the full rules.
Above threshold34%(11 notices)
11 of 32 notices are Above threshold (34%).Below threshold66%(21 notices)
21 of 32 notices are Below threshold (66%).
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How long bidders get to respond.
Middle value in days from the tender notice to its deadline.
Competition
Contracts published in the last 36 months (103) · bid counts per lot from award notices · values are net contract awards, framework and DPS ceilings excluded · SME and local status as declared
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The usual range of contract values here.
The middle half of published award values, VAT excluded, with the middle value marked. Framework ceilings are left out.
Published values, not actual spend.
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How much of this market is actually put out to competition.
Notices run as an open or selective procedure, out of all notices that say which procedure was used. Direct awards count as not competed.
57 of 99 notices that state a procedure, last 36 months. 4 more give no procedure and are left out.
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What share of contracts go to small and medium firms.
Awards to a single supplier that declared its size. SME divided by all.
35 of 50 awards where the winner declared its size.
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How much work here goes to companies based in the region.
Contract awards where the winner’s registered address is in this region, out of awards where the address is known.
Registered address, so a national firm with a local branch counts as outside.
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How often a tender ends with no award.
Notices cancelled, withdrawn or marked unsuccessful, plus terminated ones that never got an award.
2 of 103 notices, last 36 months.
Only what buyers published. Tenders that quietly went nowhere are not counted.
Who winsi
Which suppliers win the most here.
Suppliers ranked by the number of tenders won, not by money. A supplier on one big framework with many call-offs does not outrank one that won many separate competitions.
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Which suppliers win the most here.
Suppliers ranked by the number of tenders won, not by money. A supplier on one big framework with many call-offs does not outrank one that won many separate competitions.
Ranked by distinct procedures won on notices carrying this code, then award records · 91 awards to 66 suppliers · the five most frequent winners hold 29% of contract awards in the last 36 months
| Supplier | Procedures | Awards | Last 12 months | Buyers |
|---|---|---|---|---|
| SIMER ENVIRONMENTAL SERVICES LTD | 10 | 10 | 10 | 1 |
| D.S.R. MECHANICAL SERVICES LIMITED | 7 | 7 | 7 | 1 |
| CEI ELECTRICAL SERVICES LTD | 4 | 4 | 4 | 1 |
| MKG Building Services Ltd | 4 | 4 | 4 | 1 |
| Hewer Facilities Management Ltd | 2 | 2 | 1 | 2 |
| ETEC CONTRACT SERVICES LTD | 2 | 2 | 2 | 1 |
| JGC Engineering & Technical | 2 | 2 | 2 | 1 |
| M&M Medical Ltd | 2 | 2 | 1 | 1 |
Where to submiti
Where bids for this work are submitted.
Notices by the portal in their submission link, where one is published.
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Where bids for this work are submitted.
Notices by the portal in their submission link, where one is published.
E-sourcing portals named in the submission address · 31 of 146 notices name one · each portal page explains registration
Open tenders in mechanical installations
19 open for bids now · soonest deadline first
| Notice | Authority | Deadline | Days left | Published value |
|---|---|---|---|---|
| Boiler & Mechanical Specialist Remedials, Minor Works and New Installations | KENT COMMUNITY HEALTH NHS FOUNDATION TRUST | 10 Nov 2026 | 15d | £250,000 |
About this data
- Source. Official UK public procurement notices (Find a Tender), reused under the Open Government Licence v3.0. New notices arrive through the day; the figures are rebuilt nightly.
- What counts here. Every notice with a CPV code starting 4535. A notice with several codes counts in each sector it names. Notices from 2021 to 16 Oct 2026.
- Competition. Bids and winners cover the last three years and count each lot as its own contest; frameworks and dynamic purchasing systems are shown apart from ordinary contracts.
- Why no total spend. Notice estimates often repeat a framework’s ceiling, so adding them up would overstate the market. Typical contract values are shown instead.
- Every figure shows what it rests on. Not every notice publishes a bid count, a value or a delivery region, so each figure carries the number of records behind it, and one built on few records is marked as such. The on a figure explains it; the counting rules are in the methodology. Spotted something wrong? Tell us.