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As energy costs remain a primary concern for households across the UK, the focus on home energy efficiency has never been sharper. While single interventions like loft insulation or a new boiler are steps in the right direction, the real shift toward Net Zero lies in whole house retrofit.
While our recent guide to retrofit funding explains the various schemes available like ECO4 and the Warm Homes Fund, the real challenge for providers is deciding how to deploy that funding for the best long term results. With the recent transition from the Social Housing Decarbonisation Fund (SHDF) to the new Warm Homes: Social Housing Fund, housing providers are looking for delivery partners who can manage complex multi measure projects that meet strict compliance standards.
What is a Whole House Retrofit?
Whole house retrofit (often referred to as multi measure retrofit) is a comprehensive approach to energy efficiency. Instead of treating a home as a collection of separate parts, we look at it as a single system. This involves combining various energy efficiency measures to ensure they work in harmony.
Typically, this follows a fabric first approach as outlined in PAS 2035:
- Insulation: Improving external walls, cavity walls and lofts to prevent heat from escaping.
- Ventilation: Ensuring the home remains healthy and free from damp once it is sealed to prevent mould.
- Renewables: Layering in Solar PV or Air Source Heat Pumps to provide clean, low cost energy.
Why Does Multi Measure Matter for SHDF and Warm Homes Funding?
The benefits of this integrated approach go far beyond simple cost savings. For local authorities and housing associations, it is the only way to ensure long term value for money.
- Eliminating Performance Gaps When measures are installed in isolation, they often do not reach their full potential. For example, installing a high tech Air Source Heat Pump in a poorly insulated home is inefficient and leads to high running costs. By tackling the fabric of the building first, we ensure that new heating technologies work at peak performance.
- Tackling Fuel Poverty For social housing providers, the goal is to protect residents from fluctuating energy markets and price shocks. Multi measure solutions provide a permanent buffer against fuel poverty by drastically reducing the amount of energy required to keep a home warm and functional.
- Future Proofing Housing Stock With the UK target to reach Net Zero by 2050, piecemeal upgrades are no longer enough. Multi measure projects delivered to PAS 2035 standards ensure that homes are upgraded correctly the first time. This avoids the need for expensive remedial work or retrospective MCS certification issues in the future.
Frequently Asked Questions: Retrofit and Funding
What is the Warm Homes: Social Housing Fund? This is the successor to the SHDF scheme. It provides funding for social landlords to improve the energy performance of social homes to at least EPC Band C.
Is a whole house retrofit worth it? Yes. While the initial coordination is more complex, it is significantly more cost effective than visiting the same property three times for three different measures. It also reduces resident disruption and ensures all measures are compatible.
How does a whole house retrofit help with damp and mould? Ventilation is a core part of the PAS 2035 whole house approach. When we insulate a home, we also assess and improve the ventilation systems. This ensures that while the house stays warm, air continues to circulate properly, which is the most effective way to prevent damp and mould growth in social housing.
Our Commitment to Quality
At Zero Carbon Group, we pride ourselves on managing these complex multi measure schemes from start to finish. We act as a certified partner for Tier 1 contractors and housing providers, managing everything from initial assessment to final handover.
By coordinating every stage, we minimise disruption for residents and ensure every project meets the highest standards of safety, compliance and performance.
Retrofitting the UK housing stock is a massive challenge, but by adopting a comprehensive whole house mindset, we can create warmer, greener and more sustainable communities for everyone.
Learn more about our social housing decarbonisation services by clicking here.