OUR SERVICES
Cavity Wall Insulation
Making Properties Warmer, Greener & More Energy Efficient
Approximately 35% of the heat loss in your home is lost through uninsulated walls. By properly insulating the cavity walls, you will save energy and reduce your heating bills.
If your home was built after 1920, it is likely to have cavity walls.
A cavity wall is made up of two walls with a gap (cavity) in between, which can have insulation blown into with minimal disruption.
What exactly is cavity wall insulation?
Cavity wall insulation is a highly effective way to improve the thermal efficiency of a building.
Most modern properties are built with two layers of brick or blockwork separated by a small gap — known as the cavity. By filling this cavity with an insulating material, such as mineral wool, polystyrene beads, or foam, heat loss through the walls is significantly reduced.
This process helps keep warmth inside during colder months and prevents excess heat from entering during warmer weather — making it one of the most cost-effective energy-saving measures available.
Contact us today to arrange a FREE no obligation survey.
A series of holes are drilled from the outside of the property and insulation is blown in, using specialist equipment. Once all holes have been filled, they are all made good with cement, matching the existing finish.
Initial inspection and survey
We always arrange a free site survey before providing a no obligation quote for cavity wall insulation. As you can imagine, every home is different and it is essential that the property is inspected before agreeing to any works.
At the survey, initially we will visually inspect the walls to determine whether there are signs of a previous installation. If there are no previous injection points present, we will conduct a drill test and boroscope check.
A small hole (12-14mm) is drilled in an inconspicuous area on each elevation and a camera is inserted. This allows us to inspect the condition of the cavity, ensuring there is no rubble or debris bridging the gap. A cavity wall can only be insulated if it is clear of any rubble or debris. All holes drilled will be effectively sealed to prevent water ingress.
The cavity width will also be measured. The cavity must be a minimum of 50mm in order to be filled with our cavity wall insulation. This allows the material to spread evenly throughout the wall ensuring there are no voids!
Damp proof courses (DPC) will be inspected to make sure they are of adequate height above ground level and any remedial action required pointed out to the occupant or owner.
We will assess the access around the property and check any fuel burning appliances within the home. Certain appliances may require additional combustion ventilation and this will be explained should they be required.
We’ll then take some measurements and provide you with a quote.
The installation process
Our installation process is quick, clean, and minimally disruptive, whether for a home or a commercial property
1. PREPARATION
Small holes (about the size of a 10p coin) are drilled into the outer walls at regular intervals to allow for even distribution of insulation material.
2. INJECTION OF INSULATION
The chosen insulation material is injected into the cavity under controlled pressure, ensuring the entire wall space is filled without gaps.
3. FINISHING
Once complete, the holes are carefully sealed with colour-matched mortar, leaving the wall looking as it did before installation.
4. QUALITY CHECK & GUARANTEE
Every installation is inspected and guaranteed, giving you confidence in both performance and workmanship.
Combustion ventilation
Certain appliances require additional ventilation for combustion in order to function safely.
If no existing vent is present, a 5″ core vent will be installed to meet this legal requirement. Below are some of the appliances which may be affected:
• gas fires with a heat input rating over 7kw
• decorative fuel effect gas fires of any kw rating
• wood burners with a heat output rating over 5kw
• open fires
• open flue gas or oil boilers
• Aga or Rayburn cookers
Homeowners, landlords and commercial properties
Whether you’re a homeowner, landlord or builder, we can assist you in getting your walls insulated. Everyone can benefit from having cavity wall insulation installed in their property, if suitable.
If you are a homeowner, we can insulate your walls to help reduce heat loss and save money on your energy bills.
Landlords, whether you have one property or multiple, get in touch to see if we can help. We will happily look through your portfolio to determine which homes would benefit from additional insulation. Up to date Energy Performance Certificates can also be provided if required. Commercial properties can also be insulated to reduce energy bills and create a more comfortable office space. We have worked with various clients to upgrade commercial insulation.
New build and refurb
No job is too big or too small
Whether you are extending, or have a site with multiple plots, at A to Z Energy Solutions we can cover it all.
Whether you’re building properties with a 100 to 150mm cavity width, or refurbishing an existing building, we have a cavity wall insulation system for you. Instafibre 040 and 034 can provide different U-values depending on your need.
We’re also able to install Loft Insulation to current guidelines, ensuring you meet building control requirements.
Get in touch today to find out how we can help take the stress out of getting your project insulated. We have experience in quoting from drawings or can arrange a site visit to discuss your needs.