What is RE:FIT London?

RE:FIT is part of the Mayor's £34 million Energy for Londoners programme which aims to make London's homes warm, healthy and affordable, its workplaces more energy efficient, and to supply the capital with more local clean energy.

RE:FIT London is an award-winning and tried and tested programme used to help make London's non-domestic public buildings and assets more energy efficient.

The programme, established in 2009, not only reduces carbon emissions but also results in large guaranteed energy savings for the public sector (typically around 15-25 per cent). Find out more about what RE:FIT has achieved to date.

RE:FIT London helps a range of organisations including London boroughs, NHS bodies, central government departments, schools and other educational establishments, and cultural and heritage organisations to implement retrofit projects. It does this through:

Why use RE:FIT?


No-risk approach to getting your project up and running:

  • free expert consultancy and advice from start to finish
  • free benchmarking – helping you build the business case
  • the confidence of being part of an award-winning programme
  • fast and efficient process using an OJEU compliant framework of 16 service providers to choose from
  • the confidence of using a tried and tested scheme which has already supported over 200 organisations
  • a range of projects and technologies covered – the PDU has the breadth of skills and expertise to advise you on the right scheme for your organisation 

Guaranteed savings:

  • average saving of 15-25 per cent on energy bills
  • you keep 100 percent of your savings – no sharing or hidden costs
  • guaranteed return on investment
  • energy savings guaranteed – through a proven framework of reputable contractor

How could RE:FIT help you?

RE:FIT was developed to overcome three key barriers that were preventing the retrofit of non-domestic public sector buildings from happening at the required rate and scale:

1. A lack of capacity and expertise to identify and get projects off the ground, including securing the most appropriate funding.

Solution: Fully funded PDU services, including access to free training and project management support.

2. Long, complex and costly procurement processes.

Solution: Access to 16 pre-approved industry leading contractors through the RE:FIT framework.

3. Risks associated with investing money with no savings guarantees.

Solution: Using the framework and PDU services to put Energy Performance Contracts in place which guarantee savings.

How does RE:FIT work?

How does it work? (the 7-step process)

  • supporting business case and funding

  • running your tender process 

  • working with your chosen contractor with design and works installation

  • monitoring and verification 


For a simple LED lighting retrofit, your project could be up and running within 6 weeks. Typically, more complex energy measures start being implemented between 5-12 months from the initial engagement.

Who else uses RE:FIT?

We're pleased to have worked with a number of public sector organisations:

London boroughs

  • Croydon
  • Ealing
  • Enfield
  • Haringey
  • Harrow
  • Hounslow
  • Merton
  • Sutton


  • Goldsmiths University of London
  • Imperial College London 
  • London Metropolitan University
  • London School of Economics and Political Science
  • Tower Hamlets College
  • University of London
  • Workings Men's College 

GLA family

  • London Fire Brigade
  • Metropolitan Police
  • Transport for London 

NHS and health

  • Barts Health NHS Trust
  • Epsom and St Helier University Hospitals NHS Trust
  • Newham University Hospital
  • Waltham Forest

Culture and heritage 

  • Kew Royal Botanic Gardens
  • Central Government
  • Department of Energy & Climate Change
  • Department of Environment Food & Rural Affairs

Who is funding the programme?

RE:FIT London is jointly funded by the GLA and the European Union European Regional Development Fund until August 2019 and is helping to achieve the Mayor's aim for London to be a zero carbon city by 2050.

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