Enabling large-scale retrofit delivery for PA Housing

The challenge

PA Housing is a social housing provider managing over 24,000 homes across the Midlands, London and the South East. They needed a compliant and efficient route to market to deliver a large-scale retrofit programme across the Midlands and South of England.

The organisation aimed to upgrade more than 3,000 homes through a multi-contractor retrofit programme while maintaining a strong resident-first approach.

Key challenges included:

• Delivering retrofit works at significant scale and pace
• Improving energy performance towards EPC Band C or above
• Meeting growing net zero and regulatory requirements
• Ensuring procurement compliance without delaying delivery

Delivering a programme of this scale required a solution that could balance speed, quality, compliance, and long-term performance.

The approach

PA Housing accessed Fusion21’s Decarbonisation Framework (Lot 1: Whole House Decarbonisation), providing a fast, compliant route to appoint an experienced delivery partner.

Through the framework:

• Fusion21 supplier Sustainable Building Services (SBS) was appointed from a pre-qualified supply chain as one of five contractors supporting delivery of PA Housing's wider retrofit programme
• The programme mobilised quickly, reducing procurement complexity and risk
• Funding was secured through the Warm Homes: Social Housing Fund Wave 3, alongside additional member funding

This approach enabled:

• Streamlined, fully compliant procurement
• Quick mobilisation from strategy to delivery
• Strong collaboration between PA Housing and SBS
• Confidence in delivery at scale

Paul Towers, Head of the Fusion21 Foundation said: "Programmes like this demonstrate how our frameworks enable members to move from strategy into delivery at scale, supporting real outcomes for residents and communities.” 

The outcomes

The four-year programme will deliver large-scale retrofit improvements across thousands of homes, generating measurable environmental and social impact.

The scope of works includes:

• External, internal and cavity wall insulation
• Flat roof and loft insulation
• Solar PV installation
• Window and door replacements
• Ventilation upgrades

This will help deliver:

• Reduced energy bills for residents
• Improved thermal comfort and living conditions
• Lower carbon emissions across housing stock
• Progress towards government decarbonisation targets
• Long-term resilience and future-proofed homes

Steve Roberts, Regional Driector, Sustainable Building Services, said: "These retrofit works will be led by residents’ real needs – designed to help reduce their energy bills and ensure their future comfort and wellbeing.”

Proof points:

• 3,000+ homes being upgraded across the Midlands and South of England through a programme delivered by five contractors

• Delivered through Fusion21’s Decarbonisation Framework

• Four-year large-scale retrofit programme

• Supported by the Warm Homes: Social Housing Fund Wave 3

• Demonstrates fast, compliant procurement at scale.

Start your retrofit programme with confidence

Fusion21 provides housing providers with a proven, compliant route to deliver retrofit programmes at scale – reducing risk, accelerating delivery, and driving real outcomes for residents.

Find out more about our Decarbonisation Framework here.