Construction Works and Associated Services

Offers a wide range of major and minor building, and civil engineering projects for central government and the wider public sector.

Updates

4 November 2026: The timescales for RM6320 Construction Works and Associated Services 3 including ProCure24 have been revised. Due to the size and scale of the framework and the number of tenders submitted, we have revised our project timeline.

As such, RM6088 Construction Works and Associated Services (CWAS) will now expire on 30 September 2027. This will apply to all lots in the framework. All call-off contracts must be awarded by 30 September 2027. The RM6320 Construction Works and Associated Services 3 including ProCure 24 framework (CWAS3/P24), is due to go live in June 2027. For updates and more information, visit the CWAS3/P24 website page.

02 June 2026: Register a project on the framework using the additional client user agreement (ACUA). Once that is done we will share a unique reference number. 

Use the reference number when quoting on procurement documentation. Provide an award notification form (ANF) for any contract award information.

22 February 2023: For new requirements over £80 million, use lot 5 of the RM6267 Construction Works and Associated Services 2 (CWAS2) / ProCure 23 (P23) agreement.

Description

Enables public sector organisations and their arm’s-length bodies to access all types of building and civil engineering works.

The flexible contract structure is designed to provide solutions for varying customer requirements. It includes advanced, innovative contract arrangements, allowing customers to procure programmes of work as self-managed sub-alliances.

The framework is arranged in 11 lots of varying levels of complexity and value of work from £0 – £3m up to £80m+. This includes general construction and also specialist market areas:

  • housing
  • high-rise
  • maritime
  • airfields
  • demolition / decommissioning
  • construction management

Individual lots are divided into regional sub-lots appropriate to the market sector and value range. The lower value lots support direct access to SME suppliers.

All of the commonly used procurement routes, tendering methods, payment arrangements and standard forms of contract are available. Standard common government boilerplate clauses are included for things such as GDPR and intellectual property rights. Individual customers have the freedom to include additional project or customer specific contract amendments.

The framework supports the implementation of government policies and strategies:

  • building information modelling (BIM)
  • life cycle cost
  • prompt payment
  • project bank accounts
  • early contractor involvement
  • social value

It also aligns suppliers and customers in achieving agreed success measures for each lot. Advanced alliance facilities are included to increase the potential for consistency, efficiency, improved value and lessons learned by integrating or connecting:

  • a programme of work comprising more than one project to be awarded to one or more suppliers
  • the design, capital and operational phases of any one or more projects, to be awarded to one or more suppliers

Benefits

  • value for money: we selected all suppliers using both qualitative and commercial measures
  • options for you to carry out further project specific checks to meet your needs
  • flexibility to change the quality/cost weightings at competition stage
  • includes pre-agreed capped contract rates for overheads, profit and labour
  • social value: you have the flexibility to tailor social value requirements in each further competition (includes local supply chain spend, apprenticeship opportunities and reduction of pollution)
  • collaboration: uses the Framework Alliance Contract which encourages collaboration between supplier and customer
  • complements our other construction frameworks to offer a complete, start to finish solution and integrated service
  • also includes contract arrangements which allows you to buy programmes of work as self managed sub-alliances to increase consistency, efficiency and improve value
  • fast and flexible: enables you to use and amend a range of the most commonly used contract forms to ensure they meet your own internal governance
  • expert knowledge and support: our experienced team will offer both technical and commercial support
  • you can also access a range of specific guidance documents and templates on the CWAS knowledge hub
  • policy: aligned to and supports the principles of the Government’s Construction Playbook to drive maximum efficiency from public sector contracts
    • also ensures the sustainability and improvement of construction industry
  • lots are split up by value, location and specialisms which provides access and opportunities to SMEs at regional levels
  • select the best lot for your needs by using our Guided Match tool in the library section of the CWAS knowledge hub

Products and suppliers

There are 111 suppliers on this agreement

Lot 1.1.1: Building Works & Minor Associated Civil Engineering Works & Servs–North England
Value band £0 to £3 million

Expires:

16 suppliers

Lot 1.1.2: Building Works & Minor Associated Civil Engineering Works & Servs–South England
Value band £0 to £3 million

Expires:

17 suppliers

Lot 1.1.3: Building Works & Minor Associated Civil Engineering Works & Servs–Wales
Value band £0 to £3 million

Expires:

4 suppliers

Lot 1.1.4: Building Works & Minor Associated Civil Engineering Works & Servs–Scotland
Value band £0 to £3 million

Expires:

7 suppliers

Lot 1.1.5: Building Works & Minor Associated Civil Engineering Works & Servs–N. Ireland
Value band £0 to £3 million

Expires:

2 suppliers

Lot 1.2.1: Civil Engineering Works & Minor Associated Building Works & Servs–North England
Value band £0 to £3 million

Expires:

10 suppliers

Lot 1.2.2: Civil Engineering Works & Minor Associated Building Works & Servs–South England
Value band £0 to £3 million

Expires:

11 suppliers

Lot 1.2.3: Civil Engineering Works & Minor Associated Building Works & Servs–Wales
Value band £0 to £3 million

Expires:

3 suppliers

Lot 1.2.4: Civil Engineering Works & Minor Associated Building Works & Servs–Scotland
Value band £0 to £3 million

Expires:

3 suppliers

Lot 1.2.5: Civil Engineering Works & Minor Associated Building Works & Servs–N. Ireland
Value band £0 to £3 million

Expires:

No suppliers

Lot 2.1: Construction Works and Associated Services – North England
Value band £3 million to £10 million.

Expires:

12 suppliers

Lot 2.2: Construction Works and Associated Services – South England
Value band £3-10m

Expires:

10 suppliers

Lot 2.3: Construction Works and Associated Services – Wales
Value band £3-10m

Expires:

11 suppliers

Lot 2.4: Construction Works and Associated Services – Scotland
Value band £3-10m

Expires:

12 suppliers

Lot 2.5: Construction Works and Associated Services – N. Ireland
Value band £3-10m

Expires:

9 suppliers

Lot 3.1: Construction Works and Associated Services – North England
Value band £10-30m

Expires:

13 suppliers

Lot 3.2: Construction Works and Associated Services – South England
Value band £10-30m

Expires:

17 suppliers

Lot 3.3: Construction Works and Associated Services – Wales
Value band £10-30m

Expires:

10 suppliers

Lot 3.4: Construction Works and Associated Services – Scotland
Value band £10-30m

Expires:

12 suppliers

Lot 3.5: Construction Works and Associated Services – N. Ireland
Value band £10-30m

Expires:

6 suppliers

Lot 4.1: Construction Works and Associated Services – England/ Wales
Value band £30-80m

Expires:

13 suppliers

Lot 4.2: Construction Works and Associated Services – Scotland
Value band £30-80m

Expires:

12 suppliers

Lot 4.3: Construction Works and Associated Services – N. Ireland
Value band £30-80m

Expires:

4 suppliers

Lot 5: Construction Works & Assoc Servs (£80m +) - National Lot across all UK regions
National Lot across all UK regions £80m plus

Expires:

13 suppliers

Lot 6.1: Residential – North England

Expires:

10 suppliers

Lot 6.2: Residential – South England

Expires:

10 suppliers

Lot 6.3: Residential – Wales

Expires:

3 suppliers

Lot 6.4: Residential – Scotland

Expires:

5 suppliers

Lot 6.5: Residential – N. Ireland

Expires:

2 suppliers

Lot 7.1: High Rise Accommodation – North England

Expires:

11 suppliers

Lot 7.2: High Rise Accommodation – South England

Expires:

12 suppliers

Lot 7.3: High Rise Accommodation – Wales

Expires:

1 suppliers

Lot 7.4: High Rise Accommodation – Scotland

Expires:

4 suppliers

Lot 7.5: High Rise Accommodation – N. Ireland

Expires:

No suppliers

Lot 8: Maritime - National Lot across all UK regions

Expires:

6 suppliers

Lot 9: Airfields - National Lot across all UK regions

Expires:

6 suppliers

Lot 10: Demolition - National Lot across all UK regions

Expires:

13 suppliers

Lot 11: Construction Management - National Lot across all UK regions

Expires:

11 suppliers

How to buy

You can buy from this framework alliance contract using either the competitive award procedure or the direct award procedure.

The competitive award duration is not defined, as it will depend on the size, scale and complexity of your project or requirements.

You should first decide which lot or lots are most suitable using our Guided Match Lot selector tool. Guidance on selecting the appropriate lot is available in the documents section below. If you are still unsure then please contact us by email for help selecting the right lot.

The buying process is:

  1. Register as an additional client with GCA by completing the registration document (available to download in our documents tab below) and return the document by email to GCA. There is no joining fee and no commitment, even after registering.
  2. Once this has been completed you can then access supplier alliance member rates. If you wish to run a procurement you will also need to complete an additional client user agreement (ACUA) form.
  3. GCA will issue a unique reference number on receipt of this form for your project or programme of works. This number must be referenced and included on all correspondence and communication with supplier alliance members. You will also need to state which procurement portal you will be using to ensure the suppliers are registered and can respond to your bid.
  4. When the supplier alliance member receives the ACUA reference number for your project they can bid on your invitation. Once contracts are exchanged, construction work can begin.

Choosing your contract

There are a variety of industry specific contracts offered to customers under this framework:

  • NEC produces a diverse range of definitive end-to-end project management contracts that empower users to deliver projects: on time, on budget and to the required standards
  • JCT produces a suite of standard forms of contract that set out the responsibilities of all parties within the construction process and their obligations; it is clear what work needs to be done, who is doing it, when are they doing it by, and for how much
  • PPC2000 offers a single contractual hub, allowing all team members to ‘contract as a team’ on identical terms; aligning contractual project management processes with teamwork methods and behaviours
  • TAC-1 supports and integrates the provision of any type or scale of works and/or services and/or supplies
  • SBCC: the Scottish Building Contract Committee (SBCC) standard contracts aim to create as much uniformity across the UK as possible by adopting the JCT forms wherever possible; it can be used in Scotland

Documents

Updates

Crown Commercial Service (CCS) became Government Commercial Agency (GCA) on 1 April 2026. Documents published before this date may still refer to CCS. All contract documents remain valid for existing and new contracts, and there are no changes to how you work with us.

Documents