CT0116 - External Wall Insulation Retrofit Works Programme

Northern Ireland Housing Executive
Northern Ireland
9 December 2025 to 10 July 2029

Delivery of a multi-lot retrofit programme across five regional areas, encompassing external wall insulation, window and door replacement, and roof replacement works for social housing properties. The contract is structured into five distinct regional lots, requiring contractors to manage site-specific installation and associated building works within the Northern Ireland Housing Executive portfolio.

Open the official notice

Awarded value: £11.8m; As published
Published: 20 February 2025
Awarded: 9 December 2025; Piperhill Construction Limited, Mascott Construction, Combined Facilities Management Ltd and 2 more
Contract length: 43 months; Ends 10 July 2029

What the contract covers

Works contract

Provision of residential property retrofit services including external wall insulation, window and door replacement, and roof refurbishment works.

Retrofit external wall insulation to NIHE properties
Windows to NIHE properties
Doors to NIHE properties
Roof replacement to NIHE properties
Associated works to NIHE properties

Lot	Estimated value	SMEs
Lot 1 - South Region 1	Not stated	Not stated
Lot 2 - Belfast Region 1	Not stated	Not stated
Lot 3 - North Region 1	Not stated	Not stated
Lot 4 - North Region 2	Not stated	Not stated
Lot 5 - South Region 2	Not stated	Not stated

Terms and requirements

Contract type: Works contract
Contract dates: 9 December 2025 to 10 July 2029
Certifications asked for: None stated
Lots: 5
Suitable for SMEs: Not stated
Category: Works
CPV codes: 45210000, 45453100, 45211000, 45215210

Services in this contract

External and internal wall insulationMain service£680k typicalExternal wall insulation retrofit with associated windows, doors and roof works

Lifecycle

Published
20 February 2025
Contract awardedto Piperhill Construction Limited, Mascott Construction, Combined Facilities Management Ltd and 2 more
9 December 2025
Contract starts
9 December 2025
Contract ends
10 July 2029

The buyer

Northern Ireland Housing Executive

Type: Locked
Contracts, 24 months: Locked
Recorded value: Locked
Typical contract: Locked
External wall insulation contracts, 24 months: Locked

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Contact details

Name: Locked
Email: Locked
Address: Locked

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The suppliers

Piperhill Construction Limited

Contracts won, 24 months: Locked
Value won, 24 months: Locked

Mascott Construction

Contracts won, 24 months: Locked
Value won, 24 months: Locked

Combined Facilities Management Ltd

Contracts won, 24 months: Locked
Value won, 24 months: Locked

and 2 more

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Cite this contract

Link: https://bidskim.com/tender/914271/ct0116-external-wall-insulation-retrofit-works-programme
Buyer reference: Not published
Last checked: 4 November 2026

Northern Ireland Housing Executive. CT0116 - External Wall Insulation Retrofit Works Programme. Contract award, 20 February 2025. BidSkim, https://bidskim.com/tender/914271/ct0116-external-wall-insulation-retrofit-works-programme (accessed 4 November 2026).