Cavity Wall Insulation

A fast, cost-effective way to significantly reduce heat loss. Upgrade your cavity walls to trap heat inside, lower your energy bills, and enjoy a warmer home without the disruption.

Insulation

What Is Floor Insulation?

Cavity wall insulation involves injecting high-performance insulating material—typically bonded EPS (Expanded Polystyrene) beads—into the hollow space between the inner and outer layers of your home’s exterior walls. This simple process creates an invisible thermal blanket, stopping costly heat from escaping through the masonry.

Installation Process

Seamless, Drill-and-Fill Technology

The installation process is quick and minimally invasive. Our certified technicians drill a series of small, strategically placed holes in the mortar joints of your external walls. The premium EPS beads, mixed with a binding agent, are then pumped into the cavity until it is completely filled and stabilised.

Invisible Finish, Maximum Comfort

Once the cavity is fully insulated, the holes are carefully filled and color-matched to your existing mortar. The result is a completely invisible upgrade—your home looks exactly the same from the outside but feels significantly warmer, drier, and more comfortable on the inside.

How Much Can You Save with SEAI Grants?

Grant Funding

€1,700

Eligible homeowners can claim up to €1,700 towards the cost of professional cavity wall insulation.

Grant amounts vary based on your property type, with maximum funding of €1,700 available for detached homes. To qualify, your property must have been built and occupied before 2011, and all works must be completed by an SEAI-registered contractor.

Benefits of Cavity Wall Insulation

Rapid Installation

Most homes can be fully insulated in a single day with no messy construction work.

Highly Cost-Effective

One of the most affordable ways to upgrade your home’s energy efficiency.

Instant Warmth

Noticeable improvements in heat retention and comfort immediately after installation.

Zero Internal Disruption

All work is carried out from the outside, so your daily routine remains uninterrupted.

Reduces Carbon Footprint

Lower energy usage means a greener, more environmentally friendly home.

Boosts BER Rating

Positively impacts your Building Energy Rating, increasing the overall value of your property.

Eliminates Cold Spots

Creates a consistent, even temperature throughout your living spaces and reduces the risk of condensation.

SEAI Grant Eligible

How Much Can You Save with SEAI Grants?

Certified Cavity Wall Insulation Systems

At ENCON, we use only premium, NSAI Agrément certified EPS bonded beads designed to provide a continuous, high-performance thermal barrier. Our cavity wall upgrades are carried out by highly trained technicians using specialized equipment to ensure a flawless, densely packed fill every time.