Find a TenderAwardedContract award notice
Published 21 Oct 2025, 16:05 BST

Official UK procurement notice

RHPS HVAC and BMS Servicing and Maintenance

Official notice

Authority: Buckingham Palace (Public body)

3 lotsServicesCompetitive flexible procedureAbove thresholdSME suitable
Sectors: Industrial machinery (42)Repair & Maintenance (50) Delivery: Delivery location not published
Final published estimate£8,700,000initial estimate £6,300,000 · 1 value update
Submissions closed 14 Nov 2025awarded 4 Jun 2026
Award (standstill) to Forth Building Services Ltd, CBRE MANAGED SERVICES LIMITED3 awards
Contract term 3 yrsends 30 Sept 2029 · up to 30 Sept 2031 with extensions · starts 1 Oct 2026

What is being bought3 lots · detail below

Published requirement description

This procurement exercise consists of three lots:

Lot 1: London HVAC Servicing and Maintenance – Contract Reference: 0027/PPTO

Lot 2: Windsor HVAC Servicing and Maintenance – Contract Reference: 0026/PPTO

Lot 3: BMS Maintenance at the Windsor Estate – Contract Reference: 0051/PPTO

  • How the procedure runs: Competitive flexible procedure in accordance with section 20(1) and (2)(b) of the Procurement Act 2023. Stage 1: completion of PSQ, which must be completed and returned to the Royal Household no later than 14th November 2025 at 1100 hours. Up to the top five highest-scoring responses will then be invited to submit an ITT return. Stage 2: ITT (for which the indicative award criteria is set out in this Notice), which must be completed and returned to the Royal Household no later than 16th January 2026 at 1100 hours. (Dates for Stage 2 are provisional, and will be confirmed in the ITT documentation).

CPV: HVAC packages · Repair and maintenance services · System maintenance services

Lots and requirements (3)Procurement structure

3 lots · all with a published value (£8,700,000 together) · same evaluation weights on every lot
Lot #1London HVAC Servicing and MaintenanceAwardedRenewal 3 yrsSMEPublished value£3,500,000

The contract shall encompass sites within the London Estates. This includes Buckingham Palace, The

King’s Gallery, Buckingham Palace Royal Mews, St James’ Palace, Clarence House, Marlborough House

(selected services only), Marlborough House Mews and Kensington Palace.

Applicants must be technically able to deliver against the contract scope as follows:

a. Planned testing and maintenance of HVAC systems, including both domestic and commercial

gas boilers, electric heat generators (including heat pumps), hot water heaters and cylinders,

system controls (excluding BMS), space heat emitters, pipework, valves, ventilation and air

conditioning equipment, ductwork (including duct cleaning, fire damper testing), accessories

and associated plantroom equipment (e.g pumps, heat exchangers, pressurisation units,

filtration and dosing systems, expansion vessels etc), across all sites detailed above.

b. Reactive maintenance and repairs of HVAC systems, including both domestic and commercial

gas boilers, electric heat generators (including heat pumps), hot water heaters and cylinders,

system controls (excluding BMS), space heat emitters, pipework, valves, ventilation and air

conditioning equipment, ductwork (including duct cleaning, fire damper testing), accessories

and associated plantroom equipment (e.g pumps, heat exchangers, pressurisation units,

filtration and dosing systems, expansion vessels etc), across all sites detailed above.

c. Undertake asset verification dilapidation surveys and energy optimisation investigations.

d. Full service contract management to provide, but not limited to, proactive scheduling

management of reactive programme and activities, stakeholder liaison, logistical support,

permits to work, KPI tracking and monitoring, all provided through a dedicated on-site

contract manager.

e. Carry out internal audits, both procedural and technical, to ensure alignment with contract

KPIs, reporting outcomes to RHPS at regular intervals.

f. Provide pre-booked standby support at planned events on site, and ability to attend a reactive

call-out from the RHPS to an in-scope site within 2 hours and make safe within 4 hours – 24

hours a day, all year round.

g. Receive, update and close out work using the RHPS CAFM system (INVIDA).

h. Providing quotes on request for replacement parts for all items that are maintained within

this contract.

i. Performance of all maintenance services in accordance with regulatory requirements and

system requirements (e.g. O&M manuals and manufacturer’s recommendations).

j. Undertaking full functional and safety checks on all in-scope plant, assets, equipment and

associated parts and replacement consumables to ensure full compliance with statutory and

legislative minimum standards, European and British Standards, and relevant Building and Fire

Safety Regulations, as well as providing all relevant certifications (including F-Gas REFCOM, or

an equivalent, and Gas Safe).

k. Updating and maintaining asset schedules for plant and equipment covered by this contract

through the RHPS’ CAFM system (INVIDA).

l. Identifying opportunities to reduce energy consumption and carbon emissions from operation

and maintenance activities.

m. Endeavoring to prolong asset life and recommend variations to manufacturer requirements,

that would reflect improved value for money in the maintenance regime

Contract period: 1 Oct 2026 – 30 Sept 2029 (3 yrs) · up to 30 Sept 2031 with extensionsValue: £3,500,000 exc. VAT · £3,500,000 inc. VAT
Eligibility: SME eligible
Extensions: 2 One-Year Extension Options
Lot #2Windsor HVAC Servicing & MaintenanceAwardedRenewal 3 yrsSMEPublished value£4,900,000

The contract shall contain sites within the Windsor Estate. The Estate includes Private and State

apartments, residential buildings, office space, workshops, stables, garages, gardens and grounds. The

majority of the buildings are classified either as Scheduled Ancient Monuments or Listed Buildings.

Applicants must be technically able to deliver against the contract scope as follows:

a. Planned testing and maintenance of HVAC equipment, including both domestic and

commercial gas boilers, hot water cylinders, heat emitters, ventilation and air conditioning

systems, humidifiers, dehumidifiers, duct cleaning, fire damper testing, and plantroom

equipment checks (including leak detection equipment), across all sites detailed above.

b. Reactive maintenance and repairs of HVAC equipment, including both domestic and

commercial gas boilers, hot water cylinders, heat emitters, ventilation and air conditioning

systems, humidifiers, dehumidifiers, duct cleaning, fire damper testing and plantroom

equipment checks (including leak detection equipment), across all sites detailed above.

c. Undertake asset verification dilapidations surveys and energy optimisation investigations.

d. Full-service contract management to provide, but not limited to, proactive scheduling,

managing reactive programme and activities, stakeholder liaison and logistical support,

permits to work, KPI tracking and monitoring, statutory compliance and other reporting, all

provided through a dedicated on-site manager.

e. Carry out internal audits, both procedural and technical, to ensure alignment with contract

KPIs, reporting outcomes to RHPS at regular intervals.

f. Standby support at all major planned events on site, and ability to attend a call-out from the

RHPS to an in-scope site within 2 hours and make safe within 4 hours – 24 hours a day, all year

round.

g. Receive, update and close out work using the RHPS CAFM system (INVIDA).

h. Provide quotes on request for replacement parts for all items that are maintained within this

contract.

i. Performance of all maintenance services in accordance with regulatory requirements and

recommendations (e.g. O&M manuals and manufacturer’s recommendations).

j. Undertaking full functional and safety checks on all in-scope plant, assets, equipment and

associated parts and replacement consumables to ensure full compliance with statutory and

legislative minimum standards, European and British Standards, and relevant Building and Fire

Safety Regulations, as well as providing all relevant certifications (including F-Gas REFCOM, or

an equivalent, and Gas Safe).

k. Updating and maintaining asset schedules for plant and equipment covered by this contract

through the RHPS’ CAFM system (INVIDA).

l. Identifying opportunities to reduce energy consumption and carbon emissions from operation

and maintenance activities.

m. Endeavoring to prolong asset life and recommend variations to manufacturer requirements,

that would reflect improved value for money in the maintenance regime.

Contract period: 1 Oct 2026 – 30 Sept 2029 (3 yrs) · up to 30 Sept 2031 with extensionsValue: £4,900,000 exc. VAT · £4,900,000 inc. VAT
Eligibility: SME eligible
Extensions: 2 One-Year Extension Options
Lot #3BMS Maintenance at the Windsor EstateAwardedRenewal 3 yrsSMEPublished value£300,000

The contract shall contain sites within the Windsor Estate.

Applicants must be technically able to deliver against the contract scope as follows:

a. Planned testing and maintenance of BMS equipment across all sites detailed above.

b. Reactive maintenance and repairs of BMS equipment across all sites detailed above.

c. Have an on-site weekly presence (Minimum 2 days) to carry out functionality checks and

reporting.

d. Receive, update and close out work using the RHPS CAFM system (INVIDA).

e. Providing quotes on request for replacement or new BMS equipment, where required.

f. Undertake dilapidation surveys and produce costed life cycle plans for the upgrade and

installation of BMS Systems across the Windsor Estate.

g. Performance of all maintenance services in accordance with regulatory requirements and

recommendations (e.g. O&M manuals and manufacturer’s recommendations).

h. Undertaking full functional and safety checks on all in-scope plant, assets, equipment and

associated parts and replacement consumables to ensure full compliance with European and

British Standards, Building and Fire Safety Regulations, and other statutory and legislative

minimum standards (including TREND and SIEMENS qualifications).

i. Updating and maintaining asset schedules for plant and equipment covered by this contract

through the RHPS’ CAFM system (INVIDA).

j. Monitor and identify opportunities to reduce energy consumption and carbon emissions from

operation and maintenance activities, liaising with HVAC contractor and in-house operatives

to improve system efficiencies.

k. Provide data storage within the BMS Systems for analysis and export and the production of

regular reports.

l. Endeavoring to prolong asset life and recommend variations to manufacturer requirements,

that would reflect improved value for money in the maintenance regime.

m. Actively contribute to the Decarbonisation Agenda at Windsor Castle, working alongside the

Property Section Projects team to reduce energy consumption (including attending meetings).

Contract period: 1 Oct 2026 – 30 Sept 2029 (3 yrs) · up to 30 Sept 2031 with extensionsValue: £300,000 exc. VAT · £300,000 inc. VAT
Eligibility: SME eligible
Extensions: 2 One-Year Extension Options

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
How bids were scored · same split on all 3 lots
Quality: 50%Price: 40%Environmental: 10%
Published sub-criteria (3)
  • Quality: 50%
  • Price: 40%
  • Environment and Sustainability: 10%
Published award criteria (3)
  • Quality: 50%
  • Price: 40%
  • Environment and Sustainability: 10%
What this means for your bid
  • Price carries 40 of 100 points: a 10% discount moves about 4 points. The method statement decides this lot, not the discount.

Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.

Procedure terms & legal framework

From the official record
Procedure method
Competitive flexible procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Awarded
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
21 Oct 2025, 16:05 BST
Last source update
4 Jun 2026, 15:46 BST
Award evaluation window
Submission end – 3 Apr 2026
Authority reference
RHPS0026
FTS notice number
2025/S 000-067203
Latest notice
Contract award notice (UK6)
Classification (CPV)
HVAC packagesRepair and maintenance servicesSystem maintenance services
Delivery area
Not published
Official registry OCID
ocds-h6vhtk-05d0f6 Find a Tender
How it runs

Competitive flexible procedure in accordance with section 20(1) and (2)(b) of the Procurement Act 2023.

Stage 1: completion of PSQ, which must be completed and returned to the Royal Household no later than 14th November 2025 at 1100 hours. Up to the top five highest-scoring responses will then be invited to submit an ITT return.

Stage 2: ITT (for which the indicative award criteria is set out in this Notice), which must be completed and returned to the Royal Household no later than 16th January 2026 at 1100 hours. (Dates for Stage 2 are provisional, and will be confirmed in the ITT documentation).

How it was run

Official notice
Run through: Delta eSourcing · Who buys & how to bid on Delta
Public notice page · account needed to bidElectronic submission allowedLanguage: EN
Access & registration note: Free Select account; no DUNS asked at signup
Requests to participate (first stage)
14 Nov 2025, 11:00 GMT
Submission deadline
14 Nov 2025, 11:00 GMT
Clarification deadline
7 Nov 2025, 11:00 GMT
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Tenderers will need to sign up to the Royal Household's e-Sourcing platform, Delta, in order to receive the ITT and able to submit clarification questions and tender returns.

Sign up link: www.delta-esourcing.com/delta/signup.html ↗.

Access Code : AC44ZCZJ96

Tenderers will need to be registered on the Central Digital Platform (CDP) in order to complete the PSQ. The CDP is free to use and will mean tenderers should no longer have to re-enter this information for

each public procurement. The CDP is available at www.gov.uk/find-tender ↗.

Timeline

21 Oct 2025 → 1 Oct 2026 · 8 dates
  1. Tender notice published368 days ago
    21 Oct 2025, 16:05 BST
  2. Clarification questions by351 days ago
    7 Nov 2025, 11:00 GMT
  3. Submission deadline344 days ago
    14 Nov 2025, 11:00 GMT
  4. Award decision expected by204 days ago
    3 Apr 2026, 23:59 BST
  5. Assessment summaries sent143 days ago
    4 Jun 2026, 00:00 BST
  6. Latest notice published142 days ago
    4 Jun 2026, 15:46 BST
  7. Standstill ends130 days ago
    16 Jun 2026, 23:59 BST
  8. Contract starts24 days ago
    1 Oct 2026, 00:00 BST

Notice history

7 events · 4 releases on Find a Tender · since 21 Oct 2025
  1. Tender notice published
    21 Oct 2025, 16:05 BST
    UK4
  2. Tender notice published
    21 Oct 2025, 19:05 BST
    UK4
  3. Tender notice published
    29 Oct 2025, 14:05 GMT
    UK4
  4. Published value updated
    29 Oct 2025, 14:05 GMT
  5. Contract award notice published
    4 Jun 2026, 15:46 BST
    UK6
  6. Status changed to complete
    4 Jun 2026, 15:46 BST
  7. Contract signature expected
    17 Jun 2026, 23:59 BST
    scheduled
Published amendments (1)

Estimated contract values have been amended to: Lot 1: London HVAC - £3.5m Lot 2: Windsor HVAC £4.9m Lot 3: Windsor BMS £300k

Routine re-releases (4)
  • 2025-10: 1 release · 21 Oct 2025

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Awards 3
Awarded value (inc. VAT) £9,137,2983 awards inc. VAT; no net value published
Bids received 1310 from SMEs
Awarded toValueDateStatus
Lot 1 · London HVAC Servicing and Maintenance1 award
Forth Building Services LtdSME1 Oct 2026 – 30 Sept 2029 · up to 30 Sept 2031Extensions: 2 One-Year Extension Options£3,841,725 inc. VAT4 Jun 2026standstill to 16 Jun 2026Standstill
Lot 2 · Windsor HVAC Servicing & Maintenance1 award
Forth Building Services LtdSME1 Oct 2026 – 30 Sept 2029 · up to 30 Sept 2031Extensions: 2 One-Year Extension Options£4,412,926 inc. VAT4 Jun 2026standstill to 16 Jun 2026Standstill
Lot 3 · BMS Maintenance at the Windsor Estate1 award
CBRE MANAGED SERVICES LIMITED1 Oct 2026 – 30 Sept 2029 · up to 30 Sept 2031Extensions: 2 One-Year Extension Options£882,647 inc. VAT4 Jun 2026standstill to 16 Jun 2026Standstill

Bid statistics published by the authority

LotBidsSMEVCSEValid bid range
1 · London HVAC Servicing and Maintenance5final-stage tenders · 19 at stage one40—
2 · Windsor HVAC Servicing & Maintenance5final-stage tenders · 20 at stage one40—
3 · BMS Maintenance at the Windsor Estate3final-stage tenders · 13 at stage one20—

Contracting authority & participating public bodies

The Royal Household

Contracting authorityPublic authority - sub-central government GB-PPON: PGLT-2499-PJTM Buckingham Palace, London, London, SW1A 1AAContact name, email

Bidders & participating suppliers

2 commercial parties on the notice
  • CBRE Managed Services LtdAwarded supplierGB-PPON: PWRJ-8952-YYJD Henrietta House, Henrietta Place, London, London, W1G 0NBContact name, email
  • Forth Building Services LtdAwarded supplierGB-PPON: PCNG-3494-ZCZG 3 & 4 Sleepy Hollow Business Park, Ampfield Hill, Romsey, South East, SO51 9AWContact name, email

Official documents & specifications (6)

Official links; attachments are not copied

Notices published for this procedure

  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender