00350-AST Whole House Retrofit Installation Works 2026-2030

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.