What Does Retrofit Mean?


It’s a word that’s being used more and more often, especially when people are talking about how to reduce energy usage and the carbon footprint of our homes.

Retrofit is simply the process of making changes to existing buildings so that energy consumption and emissions are reduced. These changes should also provide the benefit of a more comfortable and healthier home with lower fuel bills.

However, to achieve all of these, works need to be carried out properly with a bespoke plan and design and installed by competent, skilled tradespeople who work to high standards of technical competence and customer service, with good trading practices.

To explain the How? Why? and What? of Retrofit, we’ve produced a clear, straightforward guide.

Retrofitting Your Home
Retrofit - Homepage

Our homes use 35% of all the energy in the UK and emit 20% of the carbon dioxide emissions. Approximately 24 million homes across the UK need retrofitting, made low carbon and will help fight climate change.

See Our Handy Retrofit Guide

Possible renovations include, but are not limited to:

  • Insulation
  • Airtightness 
  • Ventilation
  • Heating and cooling systems 
  • Renewable technologies
  • Water heating systems
  • Efficient lighting 
  • Energy monitoring systems 
  • Using locally generated power that uses zero-carbon technologies


Why is Retrofitting Your Home Important?

Under the Climate Change Act 2008 the UK needs to reduce greenhouse gas emissions to 80% of 1990 levels by 2050. 

To meet the UK's government climate change targets, we must retrofit all homes to an EPC band C standard by 2035. Therefore, one of the key considerations for any homeowner is; How energy efficient is my home?” Housing efficiency is one of the major ways to reduce carbon and give us the best possible chance of meeting targets to help us reduce fuel poverty and make healthier homes.

We are working with the government and industry through new legislation and standards in order that quality improvements are made to UK housing stock. Energy Company Obligation (ECO4) is the government’s programme to make UK homes more energy-efficient and is focused exclusively on these households with low incomes or living in fuel poverty.

How Can TrustMark Help You? 

TrustMark is driven by several factors, including helping consumers make energy efficiency improvements to their homes and enhancing the protection they can depend on when making such decisions.

To find out more about retrofitting your home, you can speak to a specialised Retrofit Coordinator in your area using our search tool here or download our guide to Whole House Retrofit here.


Additionally, you will have access to the TrustMark Property Hub, which holds information such as:

  • When the work was completed?
  • Who completed the work?
  • Information about guarantees and financial protection.
  • Retrofit assessment records.
  • Associated work records.