Official UK procurement notice
RHPS HVAC and BMS Servicing and Maintenance
Authority: Buckingham Palace (Public body)
What is being bought3 lots · detail below
Published requirement descriptionThis 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 lotLot #1London HVAC Servicing and MaintenanceAwardedRenewalPublished 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
Lot #2Windsor HVAC Servicing & MaintenanceAwardedRenewalPublished 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.
Lot #3BMS Maintenance at the Windsor EstateAwardedRenewalPublished 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).
What it takes to wini
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 morei
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).
Published sub-criteria (3)
- Quality: 50%
- Price: 40%
- Environment and Sustainability: 10%
Published award criteria (3)
- Quality: 50%
- Price: 40%
- Environment and Sustainability: 10%
- 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)
- Delivery area
- Not published
- Official registry OCID
ocds-h6vhtk-05d0f6Find 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- 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
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- Tender notice published368 days ago21 Oct 2025, 16:05 BST
- Clarification questions by351 days ago7 Nov 2025, 11:00 GMT
- Submission deadline344 days ago14 Nov 2025, 11:00 GMT
- Award decision expected by204 days ago3 Apr 2026, 23:59 BST
- Assessment summaries sent143 days ago4 Jun 2026, 00:00 BST
- Latest notice published142 days ago4 Jun 2026, 15:46 BST
- Standstill ends130 days ago16 Jun 2026, 23:59 BST
- Contract starts24 days ago1 Oct 2026, 00:00 BST
Notice history
7 events · 4 releases on Find a Tender · since 21 Oct 2025- Tender notice published21 Oct 2025, 16:05 BSTUK4
- Tender notice published21 Oct 2025, 19:05 BSTUK4
- Tender notice published29 Oct 2025, 14:05 GMTUK4
- Published value updated29 Oct 2025, 14:05 GMT
- Contract award notice published4 Jun 2026, 15:46 BSTUK6
- Status changed to complete4 Jun 2026, 15:46 BST
- Contract signature expected17 Jun 2026, 23:59 BSTscheduled
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| Awarded to | Value | Date | Status |
|---|---|---|---|
| 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. VAT | 4 Jun 2026standstill to 16 Jun 2026 | Standstill |
| 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. VAT | 4 Jun 2026standstill to 16 Jun 2026 | Standstill |
| 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. VAT | 4 Jun 2026standstill to 16 Jun 2026 | Standstill |
Bid statistics published by the authority
| Lot | Bids | SME | VCSE | Valid bid range |
|---|---|---|---|---|
| 1 · London HVAC Servicing and Maintenance | 5final-stage tenders · 19 at stage one | 4 | 0 | — |
| 2 · Windsor HVAC Servicing & Maintenance | 5final-stage tenders · 20 at stage one | 4 | 0 | — |
| 3 · BMS Maintenance at the Windsor Estate | 3final-stage tenders · 13 at stage one | 2 | 0 | — |
Contracting authority & participating public bodies
Bidders & participating suppliers
2 commercial parties on the notice- CBRE Managed Services LtdAwarded supplier
- Forth Building Services LtdAwarded supplier
Official documents & specifications (6)
Official links; attachments are not copiedNotices published for this procedure
- Contract award notice Contract award notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Tender notice Tender notice on Find a Tender
- Tender notice Tender notice on Find a Tender
- Tender notice Tender notice on Find a Tender