Planning

Preliminary Market Engagement for Thermal Improvement Works

TRIVALLIS

This public procurement record has 1 release in its history.

Planning

10 Apr 2026 at 14:33

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Trivallis, a public authority operating under Welsh devolved regulations, is overseeing a procurement process in the planning stage for Thermal Improvement and Whole-House Retrofit Works. The process, labelled as ‘Preliminary Market Engagement for Thermal Improvement Works’, involves a market engagement event scheduled for 6th May 2026 at The Muni Arts Centre in Pontypridd, South Wales. This event marks the progression of a procurement process aimed at enhancing energy efficiency across residential properties in the region. Key deadlines include 24th April 2026 for confirmation of event attendance, and 22nd May 2026 for submission of the related market questionnaire. The works fall under the 'works' procurement category, with a contract value of £36,000,000 gross, and are primarily focused on thermal insulation and retrofitting measures for improved energy efficiency.

This tender provides substantial opportunities for businesses specialising in energy efficiency, sustainable construction, and retrofitting services, particularly those already holding or pursuing PAS 2030 accreditation. With a focus on fabric improvement measures like wall and roof insulation, as well as low carbon installations such as air source heat pumps and solar PV systems, companies within these sectors stand to benefit from potential contracts. SMEs are encouraged to participate, given the contract's structure and appropriateness for smaller enterprises. The procurement method supports capacity building in the contractor market and anticipates procurement through a framework agreement, allowing businesses to contribute to significant residential energy upgrades across multiple locations in South Wales.

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Notice Information

Notice Title

Preliminary Market Engagement for Thermal Improvement Works

Notice Description

Trivallis will be undertaking Preliminary Market Engagement (PME) for forthcoming Thermal Improvement and Whole-House Retrofit Works. The PME event will take place on 6 May 2026, from 1:00pm to 4:00pm, at: The Muni Arts Centre, Gelliwastad Road, Pontypridd, CF37 2DP. Attendance is limited to two representatives per company. Suppliers must already hold PAS 2030 accreditation, or be on track to complete accreditation (or an industry recognised equivalent) by 30 June 2026. To confirm attendance, please email procurement@trivallis.co.uk by 12:00pm on Friday 24 April 2026, including the names and email addresses of all attendees. Please note that entry will not be permitted without advance confirmation. During the session, Trivallis will present information to contractors interested in bidding for future procurement opportunities. A market questionnaire will also be issued to gather feedback to help shape: * The development of our requirements and procurement approach * The design of the procurement procedure, participation conditions and award criteria * Preparation of tender documents and specifications * Identification of capable contractors * Development of contractual terms * Capacity building within the contractor market The deadline for returning the completed questionnaire is 12:00pm on Friday 22 May 2026. The future programme is expected to include a range of whole house retrofit measures, delivered in line with Standard Assessment Procedure (SAP) methodology and PAS 2035 principles. Works may include, but are not limited to, the following: Fabric Improvement Works * Wall insulation (cavity, external and internal) * Loft, roof and roofing thermal improvements * Draught proofing and other SAP eligible fabric upgrades * External dash/render Low Carbon and Energy Efficiency Installations * Air Source Heat Pumps (ASHPs) * Hot water system efficiency improvements (cylinders, pipework, controls) * Solar PV (including removal and reinstatement) and battery storage Ventilation, Lighting and Environmental Improvements * Ventilation upgrades and passive ventilation * Energy efficient lighting * Environmental/performance monitoring sensors Supporting works necessary to enable delivery of retrofit measures, such as: * Rainwater goods replacement * External envelope repairs * Cavity extractions and damp related works (including DPC cleaning) * Building works, access and reinstatement, including canopy renewals & concrete lintels * Roofing renewals * Gas/electric meter boxes * Western Power-related works * Stitching and wall ties The scope may also include PAS 2035 roles and deliverables, such as: * Retrofit Assessment * Retrofit Coordination and compliance services * Design and specification development Trivallis may procure PAS services and installation works separately. All potential works will be delivered to residential properties owned by Trivallis across the South Wales region.

Planning Information

Deadline for confirming attendance to the PME event is 12pm on 24/04/2026. Deadline for completing the questionnaire is 12pm on 22/05/2026.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-068038
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/032920-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Framework
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45 - Construction work

CPV Codes

44112400 - Roof

44221200 - Doors

45261410 - Roof insulation work

45320000 - Insulation work

45321000 - Thermal insulation work

45421100 - Installation of doors and windows and related components

45421130 - Installation of doors and windows

Notice Value(s)

Tender Value
£30,000,000 £10M-£100M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
10 Apr 20262 days ago
Submission Deadline
Not specified
Future Notice Date
29 May 20262 months to go
Award Date
Not specified
Contract Period
30 Jun 2026 - 30 Jun 2030 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
TRIVALLIS
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
PONTYPRIDD
Postcode
CF37 2SW
Post Town
Cardiff
Country
Wales
Major Region (ITL 1)
TLL Wales
Basic Region (ITL 2)
TLL5 South East Wales
Small Region (ITL 3)
TLL51 Central Valleys and Bridgend
Delivery Location
TLL15 Central Valleys, TLL16 Gwent Valleys, TLL17 Bridgend and Neath Port Talbot, TLL21 Monmouthshire and Newport, TLL22 Cardiff and Vale of Glamorgan
Local Authority
Rhondda Cynon Taf
Electoral Ward
Pontypridd Town
Westminster Constituency
Pontypridd

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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