Before you begin, Delivering retrofit at scale, Housing stock considerations, Support for Warm Homes grant recipients, The pre delivery period

Insulation

Introduction

Most heat within a home is lost through the walls, floor, and roof. Insulation can help to reduce the amount of heat being lost through the home. It is important to choose the right combination of insulation for a property. The correct type will depend on how the building was constructed (e.g. with a solid or cavity wall), the performance requirements for the retrofitted home, and whether there are any planning restrictions.

Published: 7 December 2025

This quick guide document aims to address some of the common misconceptions in domestic retrofit regarding the various types of insulation. This document has been designed to help Local Authority (LA) officers and registered providers advise residents regarding insulation, including tips and best practices.

Download the PDF below to access this Quick Guide. 

Readers that would like this document in a more accessible format should contact rise@turntown.co.uk.