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Official procurement procedure

00350-AST Whole House Retrofit Installation Works 2026-2030

No classification published
Location not published
Official notice
Published value
£62,200,000
Submission deadline 2 Feb 2026, 12:00 GMT
Lots published4
Procurement Executive Summary
AI & Search Synopsis
Generated from official OCDS record
Tenderline Synopsis: Stonewater Limited: "00350-AST Whole House Retrofit Installation Works 2026-2030". Published status: complete. Published value: £62,200,000. 4 published lots. Recorded submission deadline: 2 Feb 2026, 12:00 GMT. See the official notice for participation instructions.
Contracting AuthorityStonewater LimitedScope & CategoriesNot publishedSubmission Window
Closed
2 Feb 2026, 12:00 GMT
Submission GatewayDirect notice routeLegal Basis & RegimeStandard procurementEstimated Value (exc. VAT)£62,200,000
Bidder Intelligence · Authority Profile: Stonewater Limited
Market Analytics
View Authority Profile →
Derived from OCDS awards & bid statistics
Published history for Stonewater Limited. These figures describe retained records, not a forecast of bids or a measure of buyer bias.
Average Price Reduction
Not availableInsufficient comparable data
Requires at least 5 comparable procedures
Competition Density
7Bids / Report
0% of reports have one bid
Supplier ConcentrationModerate Concentration
Sentinel Fire and Security Solutions LimitedTop vendor: 49.7% of attributable value
Payment Terms
Check noticePublished terms
Payment obligations depend on the applicable regime and contract. Consult the official documents.
Coverage: 7 active published awards; 24 bid reports (which may be per lot). Supplier values exclude multi-supplier awards, frameworks and DPS, and use GBP only. They are published award values, not payments. Price reduction compares single-lot, single-award, single-supplier GBP procedures with explicitly non-framework/non-DPS status; increases remain in the average. Unpublished data stays unknown. Awarded suppliers are winners, not all bidders.
Historical Awarded Suppliers With This Authority:
Supplier NameHistoric AwardsAttributable GBP Value
Sentinel Fire and Security Solutions Limited1 win£1,688,517
Redbridge & Sons Ltd1 win£855,180
CLC Contractors Ltd1 win£752,231
J. Harper and Sons (Leominster) Ltd1 win£104,447
Procedure terms
Contracting AuthorityStonewater Limited
Procedure methodNot published
Procurement categoryNot published
Statuscomplete
Framework / DPSNot published
CompetitionNot published
Above thresholdNot published
Legal basisNot published
Tender period startsNot published
Clarification deadlineNot published
Electronic submissionNot published
Submission languagesNot published
Published24 Jun 2026, 15:19 BST
Last source update24 Jun 2026, 15:19 BST
Recurring procurementNot published
ClassificationNot published
Delivery areaLocation not published
OCIDocds-h6vhtk-05f8eb
What is being bought
Stonewater would like to appoint suitable contractors to deliver it's 2026-2030 retrofit programme. Our programme is informed by the Net Zero Investment Plan and includes the delivery of retrofit works across multiple funding streams. Works must be carried out in compliance with PAS2035 and PAS2030. The measures to be installed will include but not be limited to: - Insulation - Windows and doors - Heating systems - Solar PV - Ventilation Works will be delivered nationally but split into 4 regional lots. Contractors will be expected to deliver whole house retrofit and at least one element must involve self-delivery. The estimated contract value of £62.2m (incl VAT) is across all lots. Please see lot information to see how each lot is split value wise over the duration of the first 4 years.
What changed
From the official release history
  1. tender value changed
    24 Jun 2026, 15:19 BST
  2. Status changed to complete
    24 Jun 2026, 15:19 BST
  3. Official notice release published
    24 Jun 2026, 15:19 BST
  4. Submission deadline changed to published date
    24 Jun 2026, 15:19 BST
  5. tender value changed
    18 Dec 2025, 12:05 GMT
  6. Status changed to active
    18 Dec 2025, 12:05 GMT
  7. Official notice release published
    18 Dec 2025, 12:05 GMT
  8. Submission deadline changed to 2 Feb 2026, 12:00 GMT
    18 Dec 2025, 12:05 GMT
  9. Buyer information updated
    18 Dec 2025, 12:05 GMT
Lots and requirements (4)
Published by the contracting authority
  • Lot 1 · #1
    Individual lot title not published
    complete
    Published valueNot published
    The source published no individual title or description for this lot.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
  • Lot 2 · #2
    Individual lot title not published
    complete
    Published valueNot published
    The source published no individual title or description for this lot.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
  • Lot 3 · #3
    Individual lot title not published
    complete
    Published valueNot published
    The source published no individual title or description for this lot.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
  • Lot 4 · #4
    Individual lot title not published
    complete
    Published valueNot published
    The source published no individual title or description for this lot.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
Timeline
  1. Procedure published
    24 Jun 2026, 15:19 BST
  2. Submission deadline
    2 Feb 2026, 12:00 GMT
  3. Award pending
    22 Jun 2026, 00:00 BST · £31,000,000
  4. Award pending
    22 Jun 2026, 00:00 BST · £11,000,000
  5. Award pending
    22 Jun 2026, 00:00 BST · £11,000,000
  6. Award pending
    22 Jun 2026, 00:00 BST · £17,000,000
Commercial outcome and competition
Awards
Wates Property Services Limited
£31,000,000 · 22 Jun 2026, 00:00 BST · pending
EQUANS Regeneration Limited
£11,000,000 · 22 Jun 2026, 00:00 BST · pending
Sureserve Energy Services UK Ltd
£11,000,000 · 22 Jun 2026, 00:00 BST · pending
Wates Property Services Limited
£17,000,000 · 22 Jun 2026, 00:00 BST · pending
ContractsNo contract published
Bid statistics
bids: 15 (lot 1)
finalStageBids: 1 (lot 1)
smeFinalStageBids: 0 (lot 1)
vcseFinalStageBids: 0 (lot 1)
bids: 12 (lot 2)
finalStageBids: 1 (lot 2)
smeFinalStageBids: 0 (lot 2)
vcseFinalStageBids: 0 (lot 2)
bids: 9 (lot 3)
finalStageBids: 1 (lot 3)
smeFinalStageBids: 0 (lot 3)
vcseFinalStageBids: 0 (lot 3)
bids: 15 (lot 4)
finalStageBids: 1 (lot 4)
smeFinalStageBids: 0 (lot 4)
vcseFinalStageBids: 0 (lot 4)
Buyer and organisations in this procedure

Stonewater Limited

Contracting authority GB-PPON-PVMT-4274-HPBN
View buyer profile

  • Stonewater Limited
    buyer

    GB-PPON: PVMT-4274-HPBN
    Suite C, Lancaster House,, Grange Business Park, Enderby Road, Whetstone, UKF22, LE8 6EP, GB
    Gemma.wheatley@stonewater.org
    +44 1384471065

  • Equans Regeneration Limited
    supplier
    tenderer

    GB-PPON: PDWQ-6852-QYVW
    Coleshill, Warwickshire, UKG13, B46 1JU, GB
    Centralbidteam.uk@equans.com

  • Sureserve Energy Services
    supplier
    tenderer

    GB-PPON: PXWL-7936-XDPL
    3 Inchcorse Place, Whitehill Industrial Estate, Bathgate, West Lothian, UKM78, EH48 2EE, GB
    sesuk.bidteam@sureserve.co.uk

  • Wates Property Services Ltd
    supplier
    tenderer

    GB-PPON: PTTB-7947-QVWT
    Wates House, Station Approach, Leatherhead, Surrey, UKJ26, KT22 7SW, GB
    businessdevelopment@wates.co.uk
Award and contract changes
Documents (0)
Official links; attachments are not copied
No data
No linked documents are published
Related procedures (0)
No data
No related procedures published