Stockport Housing
£77,000
Project Contract Value
Social Housing
Social Housing Decarbonisation Project
PAS2035
PAS 2035 Compliant Whole House Retrofit
Construction
Design, Project Management and Construction
Mantis successfully delivered a single-dwelling whole house retrofit pilot for Stockport Housing Group in Greater Manchester, upgrading a the home in line with PAS2035 retrofit standards.
This project demonstrates our capacity to provide whole house end-to-end turnkey retrofit services in partnership with local authorities.
Scope of Works
As Principal Contractor and Retrofit Coordinator, Mantis Energy managed and delivered the following multi-measure improvements using the Procure Plus materials framework:
- Installation of Air Source Heat Pump system
- Integration of Solar PV and Battery Storage
- Ventilation system upgrades to ensure IAQ compliance
- Upgraded existing windows to triple glazed window replacements to improve airtightness and thermal performance
- Upgraded existing doors to fully insulated / triple glazed doors
- Fabric upgrades to internal elements and structure including solid floor insulation, internal wall insulation / replastering with thermal bridge free window design, pitched roof insulation details and loft insulation
- Installation of low energy lighting
All technologies were installed by MCS and PAS2030:19 accredited installers, ensuring full compliance with PAS2035 and TrustMark requirements.
Services Provided
Mantis Energy undertook complete project responsibility, including:
- M&E design and fabric specification
- Management of all site preliminaries, logistics, scaffolding, and materials
- Oversight of snagging, making good, and quality assurance
- Provision of regular performance reports to the client
- Ongoing monitoring of install status and proactive identification of scope changes
This approach ensured delivery on time and within budget, while maintaining full compliance with PAS2035 and Building Regulations.
Outcome & Impact
The project delivered immediate benefits for tenants by reducing bills and creating more comfortable living spaces, while also contributing to a greener, more sustainable community. For Stockport Housing Group, it provides a scalable model for retrofitting larger parts of their housing portfolio in line with net zero targets.
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Substantial reduction in household energy bills.
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Lowered carbon emissions to Zero, supporting Stockport’s net zero strategy.
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Improved thermal comfort and healthier living conditions for tenants.
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Long-term resilience of the housing stock through future-proofed systems.
Contact us to find out more
If you are thinking about making your home more energy efficient or you have grand plans to build your own net zero carbon home then you have come to the right place.