Walltite Cavity Foam Insulation for Solid, Long-Lasting Protection

Walltite foam insulation is an effective solution for reducing heat loss in both existing and new-build cavity walls made of masonry. It is applied as a liquid through 12mm pre-drilled holes, where it expands to fill every void within the cavity, eventually setting as a high-density, rigid polyurethane insulation.

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Is Your Home Suitable?

Walltite is a great option for:

Homes with narrow or hard-to-fill cavities

Properties with previous insulation issues or moisture problems

Older or non-standard construction types

Buildings where added wall strength is beneficial

We offer a free survey to check if Walltite is the right choice for your home.

Request a Free Survey/Quote for Walltite Insulation

A construction site featuring a partially finished stone house, scaffolding, and an Alpha Insulation vehicle parked nearby.

Key Benefits of Walltite Insulation:

Enhanced Thermal Performance

Walltite improves insulation by sealing the cavity and preventing air leakage, which helps reduce energy bills and creates a more comfortable living environment.

Structural Stability

It restores the integrity of cavity walls, especially where wall ties have corroded.

Water Resistance

Walltite’s resistance to flood water makes it ideal for areas at risk of flooding, and it offers excellent protection against driving rain.

Durable & Long-Lasting

Once installed, it provides continuous structural support, bonding to the inner surfaces of the cavity for long-term performance.

Versatile Installation

Walltite can be used in all geographical exposure zones to make it suitable for a wide range of locations.

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OUR PROCESS

Walltite Foam Insulation Installation

Here’s what the installation process looks like:

1

Drilling Small Holes

We drill access holes into the external walls.

2

Injecting Insulation

The foam is injected into the cavity, where it expands and bonds to the surfaces.

3

Creating a Thermal Barrier

Insulation fills the cavity to minimise heat loss, enhance energy efficiency, and reinforce cavity stability.

4

Sealing & Finishing

Drilled holes are neatly sealed and colour-matched where possible.

5

Final Checking

We clean up and do a final inspection to ensure the work meets our standards.

SERVICES

Why Choose Alpha Insulation for Your Insulation Needs?

Expert Service

We offer professional advice and expert installation backed by over 20 years of industry experience.

Competitive Pricing

We provide high-quality insulation services at competitive prices to ensure great value for your investment.

Quality Materials & Guarantee

We use only the best quality materials, our work is backed by guarantee and we are available to address any concerns post-installation.

Customer Satisfaction

Your satisfaction is our priority. We work closely with you to ensure the best solutions for your needs.

Fully Certified & Guaranteed

You can trust Alpha Insulation for:

BBA & KIWA approved materials

Qualified, experienced installers

A full guarantee on all bonded bead installations

Energy Savings & Cost Benefits

Insulating cavity walls can significantly reduce your heating costs. On average, homeowners can save up to £250–£400 per year on energy bills, depending on the size and type of property. It also reduces your carbon footprint which makes your home more environmentally friendly.

FAQs

Frequently Asked Questions – Walltite Foam Insulation

Is Walltite Foam Insulation suitable for all types of walls?

It works best with masonry cavity walls that are clean and dry inside. During our free survey, we’ll check if your property is suitable before starting any work.

Will it stop damp?

Walltite doesn’t absorb water and helps prevent moisture movement through the wall. However, it won't fix rising or penetrating damp that’s already present. We’ll check for any damp issues first.

How long does the installation take?

Most jobs are completed in a day, depending on the size and layout of the building. We always aim to work efficiently with as little disruption as possible.

Is Walltite foam permanent?

Yes, it’s designed to last for the lifetime of the building without breaking down, shifting, or settling.

Can I insulate just one wall or part of the house?

It’s possible, but we usually recommend insulating all external cavity walls to get the full energy-saving benefit. Partial insulation might not be as effective.

Will I notice a difference straight away?

Many people feel a difference quickly, rooms stay warmer, and drafts are reduced. You may also notice your heating system working less often.

Can Walltite reduce noise from outside?

Yes, to a degree. While it’s mainly for insulation, it can also help reduce outside noise by sealing gaps and adding a solid barrier within the wall.

Does it stop pests getting into the walls?

Yes. Once the foam sets, it forms a solid barrier that helps stop rodents and insects from nesting in the cavity.

Is it more expensive than other insulation methods?

Walltite can cost more upfront than some traditional materials, but it’s often worth it in the long run due to its durability, performance, and energy savings.

Does it make a mess inside my home?

Not at all. All the work is done from the outside, so there’s no need to enter your home or disturb your interiors during installation.

Seal in Warmth with Walltite Foam Insulation

Get strong, reliable insulation that fills every gap. Walltite foam helps cut heat loss, improve comfort, and boost energy efficiency in your home or building.

Request a Free Survey/Quote for Walltite Insulation