0800 505 3236


0800 505 3236

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Cavity Wall Insualtion

Did you know that around 35% all the heat lost in an un-insulated home is through the Cavity walls? Cavity Walls Insulation reduces heat loss and can save you around £275(*Detached House, Source , Energy Saving Trust) a year on your Energy bills. If your home was built from 1926 onwards, the chances are that its external walls are made of two skins with a small gap between them and this is called a cavity wall. Cavity wall insulation is one of the most cost effective ways to save energy and money in your home. It will help you to heat your home more efficiently and will produce less CO2 emissions.

Cost Effective and Easiest Way

This is one of the simplest and easiest ways to save money on your energy bills and fight climate change in one action. Once the gap between the skins has been filled the result is that it will slow down the rate at which heat escapes from your homes through the walls, thus keeping as much heat as possible inside your home for as long as possible. Cavity wall insulation makes it much more difficult for heat loss to pass through your walls.

Insulating your walls is quick and mess-free

The filling of cavity walls is a technical process which requires special skills and only approved suitable skilled installers should be used to carry out the process.We will drill small holes of 22mm diameter into the outside walls of the property, then using specialist equipment, blow insulating material into the cavity between the walls. The insulating material fills the cavity which means much less heat is able to escape through the walls. This results in you having to use less heating or have your heating on for shorter periods of time to keep your home warm. It is advisable to remove ornaments from walls and window sills as there is a very minor risk that the process might cause some vibration.


Once your installation is completed we will issue you a 25 years guarantee for material and workmanship, leaving you with peace of mind and a warmer home.

Benefits of cavity wall insulation

  • Significant Savings on Your Heating Bill
  • Quick Installation Process & Cost Effective
  • Home Will Be Warm Very Quickly
  • No Need To Leave The Heating On For Long Periods Of Time
  • Reduction in the amount of CO2 produced from your home
  • Provides A Comfortable Living Environment
  • Better Winter & Summer Temperature
  • More Efficient Fuel Consumption
  • Improved Home Energy Rating
  • Save Money On Your Energy Bills
  • You Contribution to Help To Save The Environment

How Can I Check Grant Eligibility?

Please follow the following 4 step below to check your eligibility and claim your Grants.

A Complete Form

Takes only 55 second to enter your details into the online form to calculate your grant.

B Application Processed

We will inform you once your application form has been processed.

C Free Assessment

A free no obligation assessment will ensure your property is suitable.

D Get Installation

A convenient date & time will be arranged measure to be installed at no cost.


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Installer's No:BBAI8186    ::     Assessors's No:QUIA00009    ::     Company Registration No :08335815    ::     VAT Registration No :164222237    ::     Data Protection Entry No:23453456

Apex Green is a trading style of Apex Green Limited. Our registered office can be found at 52 Stirling Road, London E17 6BT We are registered in England No. 08335815 and are authorised and regulated by the Financial Conduct Authority. FCA registration number FRN: 726986 We are a credit broker and not a lender. We offer credit facilities from a panel of lenders.