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UK4

Repairs, Maintenance and Installations of Mechanical, Electrical and Domestic Heating Systems

  • First published: 07 November 2026
  • Last modified: 07 November 2026
  • Version: N/A
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To record your interest or obtain additional information or documents please find instructions within the Full Notice Text. (NOTE: Contract Award Notices and Prior Information Notices do not normally require a response)

Contents

Summary

OCID:
ocds-h6vhtk-06c0ad
Published by:
Westminster City Council
Authority ID:
AA0062
Publication date:
07 November 2026
Deadline date:
08 December 2026
Notice type:
UK4
Has documents:
No
Has SPD:
No
Has Carbon Reduction Plan:
N/A

Abstract

Westminster City Council is undertaking a comprehensive re-procurement programme for its housing repairs, maintenance and works contracts, currently delivered through a portfolio of Term Partnering Contracts (TPCs). The Programme forms part of the Council's wider strategic approach to the management, maintenance and improvement of its housing portfolio and is being delivered through a multi-tranche procurement programme supported by a Strategic Alliance model. The Council manages approximately 21,000 homes across the City, including a significant number of high-rise residential buildings, listed properties and buildings located within conservation areas. As part of Tranche 2 of the programme, the Council is seeking to appoint suitably qualified and experienced providers to deliver comprehensive mechanical, electrical and domestic heating maintenance, repair, replacement and installation services across its housing portfolio. The Mechanical contract is expected to include the planned preventative maintenance, inspection, testing, repair, renewal and replacement of communal mechanical assets and systems, including communal heating and district heat network infrastructure, boiler houses, mechanical ventilation systems, cold water storage tanks and pumps, sewage and stormwater pumping stations, controls and associated plant. The scope is also anticipated to include water hygiene management, legionella compliance activities, 24/7 emergency response services, and support for the Council’s Building Safety Act and Golden Thread obligations. The Council is additionally exploring the potential inclusion of broader heat network maintenance, repair and operational services and welcomes feedback from organisations with relevant experience in this area. The Electrical contract is expected to cover the inspection, testing, maintenance, repair, renewal and installation of electrical systems and associated infrastructure, including landlord and communal electrical installations, fixed wire testing, emergency lighting, landlord distribution systems, street and estate lighting, security and alarm systems, fire safety interfaces and low-carbon technologies such as solar PV, battery storage and electric vehicle charging infrastructure. The Domestic Heating contract is expected to include the servicing, maintenance, repair, replacement and renewal of domestic heating systems, including gas safety inspections, boiler and heating system replacements, associated pipework, controls, alarms and statutory compliance activities. Across all three service provisions, the Council expects providers to deliver safe, compliant, reliable and resident-focused services in accordance with all applicable legislative, regulatory and industry requirements. Based on current assumptions, the estimated values for each contract opportunity are: - Mechanical: £31,079,483 (excluding VAT), £37,295,379 (including VAT) - Electrical: £18,046,747 (excluding VAT), £21,656,096 (including VAT) - Domestic Heating: £9,426,595 (excluding VAT), £11,311,913 (including VAT) - District Heating Networks: £13,500,000 (excluding VAT) £ 16,200,000 (including VAT) (may form part of the Mechanical contract subject to the outcomes of the PME process) These figures are indicative only and remain subject to further refinement. The final estimated contract values will be stated within the Tender Notice or Notices (as relevant) to be published.

Full notice text

Scope

Procurement reference

PRJ 31156

Procurement description

Westminster City Council is undertaking a comprehensive re-procurement programme for its housing repairs, maintenance and works contracts, currently delivered through a portfolio of Term Partnering Contracts (TPCs). The Programme forms part of the Council's wider strategic approach to the management, maintenance and improvement of its housing portfolio and is being delivered through a multi-tranche procurement programme supported by a Strategic Alliance model. The Council manages approximately 21,000 homes across the City, including a significant number of high-rise residential buildings, listed properties and buildings located within conservation areas.

As part of Tranche 2 of the programme, the Council is seeking to appoint suitably qualified and experienced providers to deliver comprehensive mechanical, electrical and domestic heating maintenance, repair, replacement and installation services across its housing portfolio.

The Mechanical contract is expected to include the planned preventative maintenance, inspection, testing, repair, renewal and replacement of communal mechanical assets and systems, including communal heating and district heat network infrastructure, boiler houses, mechanical ventilation systems, cold water storage tanks and pumps, sewage and stormwater pumping stations, controls and associated plant. The scope is also anticipated to include water hygiene management, legionella compliance activities, 24/7 emergency response services, and support for the Council’s Building Safety Act and Golden Thread obligations. The Council is additionally exploring the potential inclusion of broader heat network maintenance, repair and operational services and welcomes feedback from organisations with relevant experience in this area.

The Electrical contract is expected to cover the inspection, testing, maintenance, repair, renewal and installation of electrical systems and associated infrastructure, including landlord and communal electrical installations, fixed wire testing, emergency lighting, landlord distribution systems, street and estate lighting, security and alarm systems, fire safety interfaces and low-carbon technologies such as solar PV, battery storage and electric vehicle charging infrastructure.

The Domestic Heating contract is expected to include the servicing, maintenance, repair, replacement and renewal of domestic heating systems, including gas safety inspections, boiler and heating system replacements, associated pipework, controls, alarms and statutory compliance activities. Across all three service provisions, the Council expects providers to deliver safe, compliant, reliable and resident-focused services in accordance with all applicable legislative, regulatory and industry requirements.

Based on current assumptions, the estimated values for each contract opportunity are:

- Mechanical: £31,079,483 (excluding VAT), £37,295,379 (including VAT)

- Electrical: £18,046,747 (excluding VAT), £21,656,096 (including VAT)

- Domestic Heating: £9,426,595 (excluding VAT), £11,311,913 (including VAT)

- District Heating Networks: £13,500,000 (excluding VAT) £ 16,200,000 (including VAT) (may form part of the Mechanical contract subject to the outcomes of the PME process)

These figures are indicative only and remain subject to further refinement. The final estimated contract values will be stated within the Tender Notice or Notices (as relevant) to be published.

Main category

Works

Total value (estimated, excluding VAT)

65622818 GBP to 65622818GBP

Contract dates (estimated)

01 July 2027, 00:00AM to 30 June 2030, 23:59PM

Extension end date (if all the extensions are used): 30 June 2032

Contracting authority

Westminster City Council

Identification register:

  • GB-PPON

Address 1: 64 Victoria Street

Town/City: London

Postcode: SW1E 6QP

Country: United Kingdom

Website: https://www.westminster.gov.uk/

Public Procurement Organisation Number: PJVD-6261-BPPJ

NUTS code: UKI32

Email: procurementteammailbox@westminster.gov.uk

Organisation type: Public authority - sub-central government

Procedure

Procedure type

Competitive flexible procedure

Is the total value above threshold?

Above threshold

Lots

Divided into 3 lots

Mechanical Services and Heat Networks

Lot number: 1

Description

This Lot covers the inspection, testing, planned preventative maintenance, repair, renewal and replacement of communal mechanical assets and systems across the Council’s housing portfolio. The scope includes communal heating and district heat network infrastructure, boiler houses, mechanical ventilation, cold water storage tanks and pumps, sewage and stormwater pumping stations, controls and associated plant. It also includes water hygiene management, legionella compliance activities and 24-hour emergency response services. The appointed contractor will be required to meet the asset information, compliance and service delivery requirements set out in the relevant Term Brief and contract documents.

CPV classifications

  • 50712000 - Repair and maintenance services of mechanical building installations
  • 45351000 - Mechanical engineering installation works
  • 45315000 - Electrical installation work of heating and other electrical building-equipment

Lot value (estimated)

26200889 GBP Excluding VAT

31441067 GBP Including VAT

Contract start date (estimated)

01 July 2027, 00:00AM

Contract end date (estimated)

30 June 2030, 23:59PM

Extension end date (estimated)

30 June 2032, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Initial three year term, plus two optional one-year extensions (3+1+1); maximum five years.

Award criteria

Type: quality

Name

Technical Envelope

Weighting: 70

Weighting type: percentageExact

Type: price

Name

Commercial Envelope

Weighting: 30

Weighting type: percentageExact

Domestic Heating

Lot number: 2

Description

This Lot covers the servicing, maintenance, repair, replacement and renewal of domestic heating systems within the Council’s housing stock. The scope includes gas safety inspections, domestic boilers, heating systems, associated pipework, heating controls, alarms and related statutory compliance activities. The appointed contractor will be required to deliver safe, reliable and resident-focused services in accordance with the relevant Term Brief and contract documents.

CPV classifications

  • 50720000 - Repair and maintenance services of central heating
  • 45331100 - Central-heating installation work
  • 45331110 - Boiler installation work
  • 45315000 - Electrical installation work of heating and other electrical building-equipment

Lot value (estimated)

15344998 GBP Excluding VAT

18413998 GBP Including VAT

Contract start date (estimated)

01 July 2027, 00:00AM

Contract end date (estimated)

30 June 2030, 23:59PM

Extension end date (estimated)

30 June 2032, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Initial three year term, plus two optional one-year extensions (3+1+1); maximum five years.

Award criteria

Type: quality

Name

Technical Envelope

Weighting: 70

Weighting type: percentageExact

Type: price

Name

Commercial Envelope

Weighting: 30

Weighting type: percentageExact

Electrical Services

Lot number: 3

Description

This Lot covers the inspection, testing, maintenance, repair, renewal and installation of electrical systems and associated infrastructure across the Council’s housing portfolio. The scope includes landlord and communal electrical installations, fixed-wire testing, emergency lighting, landlord distribution systems, street and estate lighting, security and alarm systems, fire-safety interfaces and relevant low-carbon technologies, including solar photovoltaic systems, battery storage and electric vehicle charging infrastructure. Full requirements are set out in the relevant Term Brief and contract documents.

CPV classifications

  • 50532000 - Repair and maintenance services of electrical machinery, apparatus and associated equipment
  • 45310000 - Electrical installation work
  • 45315000 - Electrical installation work of heating and other electrical building-equipment

Lot value (estimated)

24076931 GBP Excluding VAT

28892317 GBP Including VAT

Contract start date (estimated)

01 July 2027, 00:00AM

Contract end date (estimated)

30 June 2030, 23:59PM

Extension end date (estimated)

30 June 2032, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Initial three year term, plus two optional one-year extensions (3+1+1); maximum five years.

Award criteria

Type: quality

Name

Technical Envelope

Weighting: 70

Weighting type: percentageExact

Type: price

Name

Commercial Envelope

Weighting: 30

Weighting type: percentageExact

Submission

Tender submission deadline

07 December 2026, 12:00PM

Enquiry deadline

24 November 2026, 12:00PM

Date of award of contract

26 February 2027, 23:59PM

Submission address and any special instructions

https://wcc.ukp.app.jaggaer.com/

May tenders be submitted electronically?

Yes

Languages that may be used for submission

  • English

Documents

ID

conflictOfInterest

Document type

Conflict of interest

Description

Not published

Coding

Commodity categories

ID Title Parent category
45331110 Boiler installation work Heating, ventilation and air-conditioning installation work
45331100 Central-heating installation work Heating, ventilation and air-conditioning installation work
45310000 Electrical installation work Building installation work
45315000 Electrical installation work of heating and other electrical building-equipment Electrical installation work
45351000 Mechanical engineering installation works Mechanical installations
50720000 Repair and maintenance services of central heating Repair and maintenance services of building installations
50532000 Repair and maintenance services of electrical machinery, apparatus and associated equipment Repair and maintenance services of machinery
50712000 Repair and maintenance services of mechanical building installations Repair and maintenance services of electrical and mechanical building installations

Delivery locations

ID Description
100 UK - All

Alert region restrictions

The buyer has restricted the alert for this notice to suppliers based in the following regions.

ID Description
There are no alert restrictions for this notice.

About the buyer

Main contact:
N/a
Admin contact:
N/a
Technical contact:
N/a
Other contact:
N/a

Further information

Date Details
No further information has been uploaded.

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