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A leader in residential decarbonisation, energy efficiency and whole-house retrofit.

Sustainable Building Services is a multi-award winning retrofit decarbonisation turnkey service provider and principal contractor delivering at scale across all housing tenure types, including social, owner-occupied and private rental homes.

We’re exhibiting at Housing 2024
25-27th of June at Manchester Central

Come and meet us at stand number D49

Our PAS 2035 / SHDF Decarbonisation Work


SHDF Demonstrator / Wave 1 / Wave 2.1 Projects


PAS 2035 Retrofit Decarbonisation Projects


People’s Living Conditions & Wellbeing Improved


kWh/year Household Energy Savings

Sustainable Building Services is one of the UK’s largest providers of retrofit residential decarbonisation works. Working with social housing and private residential property, we manage and deliver large-scale energy efficiency, low-carbon technology and whole-house retrofit schemes to MCS / PAS 2030 and PAS 2035 Standards.

Experience spanning decades

We were one of the first UK contractors to deliver PAS2035-compliant schemes at scale, and to take an area-based approach, blending funding across mixed-tenures to maximise impact across communities.

Our work improves the health, comfort and well-being of thousands of mixed-tenure households each year. It also addresses issues relating to fuel-poverty and the cost-of-living crisis, while helping to reduce energy consumption and carbon emissions. All of this supports the UK’s progress towards meeting net zero targets.

Experience spanning decades

We were one of the first UK contractors to deliver PAS2035-compliant schemes at scale, and to take an area-based approach, blending funding across mixed-tenures to maximise impact across communities.

Our work improves the health, comfort, and well-being of thousands of mixed-tenure households each year, whilst helping address issues relating to fuel-poverty, the cost-of-living crisis, and to help reduce their energy consumption, and carbon emissions. All of this contributing towards the UK meeting its net zero targets.

Social Housing Decarbonisation Fund Wave 3

As one of the UK’s most experienced tier 1 decarbonisation contractors, we can offer expert support with bid preparation for both the Strategic Partnership and the Challenge Fund routes.

We have a long and successful record of supporting large clients and consortia at the strategic level, and we are currently managing and delivering SHDF schemes between £1 million and £25+ million.

Residential Decarbonisation

We deliver projects through all decarbonisation and energy efficiency / low-carbon funding streams. Where possible, we blend funding on a project-by-project and/or dwelling-by-dwelling basis, to increase uptake and maximise impact across an area or region:

  • Social Housing Decarbonisation Fund (SHDF)
  • Home Upgrade Grant (HUG)
  • Energy Company Obligation (ECO)
  • Client funded projects

As a turnkey provider, we can take responsibility for the end-to-end retrofit journey. We provide surety to clients and stakeholders that all aspects and stages of their decarbonisation projects will be delivered in compliance with TrustMark requirements and the demands of specific funding schemes.

In addition to retrofit decarbonisation project delivery, our services include stock / asset and funding management, mixed tenure / private home acquisition, retrofit assessment / coordination / design services, and EEM / MCS installation.

Our clients

Collaboration and Expertise

Our approach to decarbonisation project management is based around full collaboration; working in partnership with project stakeholders. This is crucial when developing, planning, managing and delivering decarbonisation projects at scale.

To support this approach, we have specifically developed a network of trusted suppliers and partners, including PAS 2035 service providers and energy efficiency / low-carbon technology installers. They complement our in-house capacity and capabilities, enabling us to mobilise retrofit projects within industry-leading timeframes.

This also allows us to support, identify and maximise funding for clients whilst, importantly, ensuring projects are delivered in compliance with standards, funding requirements and deadlines.

Award Success

The success of our approach is recognised via the retrofit decarbonisation sector’s most acclaimed national accolade, The Retrofit Academy Awards. We won The Retrofit Academy’s Award for Best Retrofit Contractor of the Year for 2023 and 2024, as well as a win for Best Retrofit Employer Award 2024 for the first time.

This endorses excellence at scale, meeting PAS 2035 principles, consistent delivery of high-quality resident engagement, innovation, high-quality whole-house retrofit projects, and providing career pathways within the retrofit sector.

We have also been shortlisted for the Construction News Awards for its Contractor of the Year 2024. Recognised as one of the most prestigious and coveted awards in UK construction, we have been singled out among a select few peers for our dedication to high quality, people first operations, innovation, and the delivery of outstanding projects and a forward-looking approach to the industry.

Excellence in Retrofitting

For a more in-depth understanding of our services and capabilities, please click on the designated sections below.

Energy Efficiency and Decarbonisation Frameworks

We are listed on many nationwide and regional energy efficiency, retrofit, whole-house and decarbonisation frameworks. Many registered social housing providers have directly appointed us due to our experience and large-scale delivery capabilities.

Our Projects

Our Projects

Recent News

Recent News

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