Contract awardedEWS1 survey

EWS1-FRAEW EWS1 (External Wall System) Assessment

London Borough of Hounslow
London
Direct award
31 July 2026 to 30 July 2028

Delivery of EWS1 (External Wall System) assessments to support mortgage valuation and lending requirements. The service involves technical inspection of external wall systems to produce RICS-compliant EWS1 forms, excluding life-safety certification, to facilitate property transactions and lending assessments.

Open the official notice

Awarded value: £1.1m; As published
Published: 7 July 2026
Awarded: 23 June 2026; Constellia
Contract length: 24 months; Ends 30 July 2028

What the contract covers

Professional assessment service

Provision of professional external wall system assessment and EWS1 certification services for residential building valuation and mortgage lending purposes.

EWS1 assessment of the external wall system for valuation and lending purposes

Terms and requirements

Contract type: Professional assessment service
Procedure: Direct award
Initial term: 24 months
Contract dates: 31 July 2026 to 30 July 2028
Certifications asked for: None stated
Suitable for SMEs: Yes
Category: Services
CPV codes: 71000000

Services in this contract

External wall fire risk appraisals (FRAEW and EWS1)Main service£274k typicalEWS1 external wall system assessments for valuation and lending

Lifecycle

Published
7 July 2026
Contract awardedto Constellia
23 June 2026
Contract starts
31 July 2026
Contract ends
30 July 2028

The buyer

London Borough of Hounslow

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Contracts, 24 months: Locked
Recorded value: Locked
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EWS1 survey contracts, 24 months: Locked

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Contact details

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The supplier

Constellia

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Main buyers

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Cite this contract

Link: https://bidskim.com/tender/3635713/ews1-fraew-ews1-external-wall-system-assessment
Buyer reference: HOUNSLOW001-DN814767-95367216
Open contracting ID: ocds-b5fd17-bbc7b93e-277c-4d4d-8b18-75afa39d209f
Last checked: 5 November 2026

London Borough of Hounslow. EWS1-FRAEW EWS1 (External Wall System) Assessment. Contract award, 7 July 2026. BidSkim, https://bidskim.com/tender/3635713/ews1-fraew-ews1-external-wall-system-assessment (accessed 5 November 2026).