INCA - Connecting Homeowners With Members

If you live in a solid wall home, the benefits of installing External Wall Insulation (EWI) are wide ranging: Reduced heat loss in cold weather and heat gain in warm weather, reduced energy bills by up to as much as 40%, reduced carbon emissions, less risk of condensation and damp walls, improved property curb side appeal and increased property value.

For more information we have put together an EWI Guide For Homeowners to guide you through the process and answer all the questions you may have. 


The wide range of EWI systems that are available mean that there will be an appropriate solution for all homes regardless of the type and location of the property, aesthetic preference or budget. The range of coloured renders, brick effect and other specialist finishes available can also greatly improve the appearance of your home, so EWI is an opportunity which is too good to miss!

Each property will have specific requirements but a typical installation will take two to four weeks. A survey will be required prior to the commencement of works, on which a quote for the works will be based. INCA Contractors will be familiar with the requirements of the External Wall Insulation system to be installed, so you can rest assured the project will run as smoothly as possible. The installation will be weather dependent and INCA Contractors will provide progress updates throughout the stages of the project’s development.

See also External Wall Insulation – All You Need To Know where we have a wealth of information with homeowners in mindI.

So, if you’re looking to thermally upgrade your home, talk to INCA.

Find An INCA Member

Whatever the nature of your involvement in an EWI project, whether it be new build or refurbishment, small or large, INCA have members who can help.

  • Home Owners
  • Social Landlords
  • Specifiers
  • Main Contractors

Insist on EWI system quality and technical competence – choose INCA.

For guidance on a full range of energy efficiency schemes in England, Scotland and Wales, contact the Energy Saving Advice Service by phoning 0330 124 6585 at a national rate or email