Find a TenderPlanned procurementPreliminary market engagement notice
Published 9 Apr 2026, 10:05 BST

Official UK procurement notice

2526-0430 Domestic Gas and Ad hoc Non-domestic Boiler Installations, Servicing and Repairs

Authority: Islington Council (Local council)

Framework agreementWorksAbove thresholdSME suitable
Planned pipeline value£78,500,000pipeline notice, not a live tender · 1 value update
Tender notice expected 3 Aug 2026from the planned procurement notice
Framework period 3 yrsends 31 May 2030 · up to 1 Jun 2032 with extensions · starts 1 Jun 2027

What is being bought

Published requirement description

The London Borough of Islington is responsible for ensuring the safety and compliance of domestic gas installations within its tenanted housing stock. This includes the annual servicing of all domestic gas boilers, as well as the delivery of planned maintenance, reactive repairs, and the supply and installation of new gas boilers. The council are preparing to procure a new framework for the delivery of domestic gas boiler servicing, repairs, and installations across its housing stock. The framework is proposed to consist of three lots responsible for works within a designated region of the borough. Lot 1: Domestic Gas Boiler Responsive Repairs and Servicing - North The council proposes appointing a single contractor to deliver domestic gas repairs and servicing in the north of the borough, supporting the council’s small in-house gas team who also operate solely in this area. The contractor will provide support particularly during peak demand periods and provide out-of-hours emergency cover. Works will include maintaining domestic gas installations in a full, efficient and safe working condition, and carrying out all necessary servicing and repairs as defined within the framework specification to approx. 11,500 properties. The works shall include the replacement of all parts as necessary to ensure the safe and efficient operation of all domestic gas system to the residential premises. It is also proposed the contractor will also have the capability to support service provision in the south of the borough (Lot 2) during periods of high demand or reduced performance. Lot 2: Domestic Gas Boiler Responsive Repairs and Servicing - South The council proposes appointing a single contractor to a framework to deliver domestic gas repairs and servicing in the south of the borough, based on the “3 Star Contract” approach. The council’s inhouse team does not currently operate in this area of the borough. Works will include maintaining domestic gas installations in a full, efficient and safe working condition, and carrying out all necessary servicing and repairs as defined within the framework specification to approx. 11,500 properties. The works shall include the replacement of all parts as necessary to ensure the safe and efficient operation of all domestic gas system to the residential premises. It is proposed the contractor will also have the capability to support service provision in the north of the borough (Lot 1) during periods of high demand, out-of-hours emergency cover or reduced performance. Lot 3: Domestic Planned and Reactive Gas Boiler Installations - Borough-Wide The council proposes appointing two contractors to deliver borough-wide domestic gas boiler installations both planned and reactive and provide an out of hours response service to approx. 23,000 properties. The in-house team does not do any boiler installation work. It is proposed call-off contracts for works orders are issued to contractors in Lot 3 in rotation and will be monitored closely by the Council using its IT systems. However, it is proposed contractor performance could also influence allocation of works orders. If a contractor does not perform to the required standard, it is proposed the council has the option to reduce or withhold issuing works to that contractor.

CPV: Central-heating radiators and boilers and parts · Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery · Heating materials · Heating, ventilation and air-conditioning installation work · Pipes and fittings · Plumbing and heating materials · Water heaters and heating for buildings; plumbing equipment

How this framework works

From the published notice
Framework period
3 yrs · up to 5 yrs from 1 Jun 2027

The lotProcurement structure

single lot · no lot value published

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
What this means for your bid
  • “2526-0430 Domestic Gas and Ad hoc Non-domestic Boiler Installations,…” is a framework: the contest is a place on its panel, not a single contract.

Pipeline intelligence · planning stage: how this market runs before the tender is published

How Islington Council buys Plumbing and sanitary works (CPV 4533), and who usually turns up

Islington Council’s published record next to the market for the same work. Compared with other frameworks and DPS only. Whole-market view: Plumbing and sanitary works (CPV 4533) →

1

How the contest usually goes

Winner shares use published awards; bid and price charts use contested lots.

Question for the bid
This buyerIslington Council · division 45
What to do with it
How often do SMEs win?
i

How often small and medium firms win.

Share of awards where the winner’s size is known.

The counts under this question show how many awards have a known supplier size.

Last 36 months.

Buyer: 5 of 5 known-size awards · market: CPV 4533 · UK-wide, n=8
100%63%

Small firms have won here. Neither number says whether you qualify; it describes who has been winning.

How often do local suppliers win?
i

How often local firms win similar work.

Winners with a registered address in the delivery region, out of awards with a known address.

Local means the winner is registered in the region where that award was delivered.

A local branch does not count if the registered address is elsewhere.

Last 36 months.

Buyer: 7 of 7 known-location awards · market: CPV 4533 · UK-wide, n=24
100%83%

Most of this buyer’s recorded winners were registered in the region where that award was delivered.

How long to a decision?
i

How long buyers here take to decide after bids close.

Middle value in days from the bid deadline to the award date, on competitions that published both.

Only decided tenders count, so slow ones still waiting are not in.

Last 36 months.

Buyer: no decision dates published · market: division 45 · Greater London, n=38
—92 days

Half of these awards have an award date within 92 days of the bid deadline.

How often single-bid or direct?
i

How often work is awarded with no recorded rival.

Direct awards and tenders where every published lot count shows one bid.

The market share is a minimum: some awards have no bid count.

Thin markets produce this too; it is not proof of a tailored specification.

Last 36 months.

Buyer: exactly 0 of 3 procurements with awards had no recorded rival · market: CPV 4533 · UK-wide, n=11
0 of 39%

Missing bid counts may hide more single-bid awards. This share is a minimum.

How many bids did past lots attract?

i

How many bids past lots received.

Each colour is a bid-count range. Only competed lots with a published count are included.

Past bids do not predict this tender.

Last 36 months.

This buyer11 lots with bid counts · all categories
0% had one bid
The market36 lots with bid counts · CPV 4533 · UK-wide
28% had one bid
Buyer / market · select a colour for counts
1 bid0% / 28%
Buyer: 0 of 11 lots with published bid counts. Market: 10 of 36 lots with published bid counts.
2–39% / 11%
Buyer: 1 of 11 lots with published bid counts. Market: 4 of 36 lots with published bid counts.
4–60% / 44%
Buyer: 0 of 11 lots with published bid counts. Market: 16 of 36 lots with published bid counts.
7+91% / 17%
Buyer: 10 of 11 lots with published bid counts. Market: 6 of 36 lots with published bid counts.

How did awards compare with estimates?

i

Where winning prices landed against estimates.

Each colour shows awards below, close to or above the published estimate, one lot at a time.

On a framework or DPS, prices are agreed when work is called off.

Past prices are a guide, not a bid price.

Last 36 months.

Not comparable on a framework or DPS: the price is set later, on each call-off.

2

Assess each lot
i

What past awards tell you about each lot.

See the forecast, this buyer’s earlier suppliers and firms with relevant wins.

No supplier is confirmed as a bidder.

Open a lot for its forecast, this buyer’s previous supplier and possible competitors, from published award history, not a bid list

Lot #1CPV 441136 monthsSME suitablePublished estimate£79m

This lot is listed as CPV 4411. The table above uses the notice category.

Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative. The bar shows 17 past lots.

A forecast, not a list of bidders.

—No model forecast yet12% chance of a single bid
Past bids on 17 similar lots
1 bid12%
2 of 17 similar past lots received 1 bid (12%).
2–318%
3 of 17 similar past lots received 2–3 (18%).
4–66%
1 of 17 similar past lots received 4–6 (6%).
7+65%
11 of 17 similar past lots received 7+ (65%).
Comparable past lots usually drew 12 bids.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

Candidate suppliers for this notice have not been worked out yet, so this is not a verdict that nobody fits.

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.
  • Two views, kept apart. The authority’s own track record and the wider market for the same kind of work sit side by side and are never mixed. Where the local picture is too thin, a figure widens to a broader market and says which one it used.
  • Forecasts are labelled. The price forecast and its range, possible competitors and the earlier-work matches are our estimates from past awards: not published facts, not win chances and not price advice. Official notices do not say who is bidding.
  • 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.

Procedure terms & legal framework

From the official record
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Works
Notice status
Planned procurement
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Framework agreement
Who may use this agreement
Not stated in the notice; call-off rights may be limited to the establishing authority
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
9 Apr 2026, 10:05 BST
Last source update
20 Apr 2026, 17:20 BST
FTS notice number
2026/S 000-035828
Latest notice
Preliminary market engagement notice (UK2)
Classification (CPV)
Central-heating radiators and boilers and partsHeat-exchange units, air-conditioning and refrigerating equipment, and filtering machineryHeating materialsHeating, ventilation and air-conditioning installation workPipes and fittingsPlumbing and heating materialsWater heaters and heating for buildings; plumbing equipment
Delivery area
UKLondon (UKI)
Official registry OCID
ocds-h6vhtk-067e95 Find a Tender

How it was run

Official notice
Appointment period ends
—

Timeline

9 Apr 2026 → 1 Jun 2027 · 5 dates
  1. Planning notice published199 days ago
    9 Apr 2026, 10:05 BST
  2. Latest notice published187 days ago
    20 Apr 2026, 17:20 BST
  3. Market engagement166 days ago
    11 May 2026, 23:59 BST

    This Notice is for informational purposes only and is not a formal invitation to tender. Its aim is to enhance transparency and competition for the upcoming tender notice. All details provided here may be updated or changed in the final tender notice. The Authority reserves the right to cancel, postpone, suspend or abort the procurement at any stage. The issue of this notice in no way commits the Authority to commence a procurement process.

    Suppliers interested in this opportunity are invited to complete a questionnaire to share their insight and expertise. Please note that responses to this questionnaire are for information‑gathering purposes only and will not be used to assess or exclude any supplier from any future procurement process.

    Please click to Express your interest -

    procontract.due-north.com/Supplier/Advert/View ↗

    How to express an interest -

    If you wish to apply for this contract opportunity please follow these steps:

    • Register your organisation free of charge via the London Tenders Portal
    • When you receive an email confirming your username and password use these to log on

    to the London Tenders Portal and express your interest in "2526-0430 Domestic Gas and Ad hoc Non-domestic Boiler Installations, Servicing and Repairs"

    • Shortly after you have expressed interest, you will receive a second email containing a

    link to access the UK2 PME documents

  4. Tender notice expected82 days ago
    3 Aug 2026, 23:59 BST
  5. Today
    25 Oct 2026
  6. Contract startsin 219 days
    1 Jun 2027, 00:00 BST

Notice history

3 events · 2 releases on Find a Tender · since 9 Apr 2026
  1. Pipeline notice published
    9 Apr 2026, 10:05 BST
    UK1
  2. Preliminary market engagement notice published
    20 Apr 2026, 17:20 BST
    UK2
  3. Published value updated to £78,500,000
    20 Apr 2026, 17:20 BST
    was £78,506,575

Commercial outcome & contract awards

Pipeline notice
Awards (0)
No award published
Contracts (0)
No contract published
Bid statistics
No aggregate bid statistics published

Contracting authority & participating public bodies

Islington Council

Contracting authorityPublic authority - sub-central government GB-PPON: PBMD-2513-CWJJ Islington Town Hall, London, London, N1 2UDContact name, email, phone

Official documents & specifications (2)

Official links; attachments are not copied

Notices published for this procedure