Professional External Wall Insulation Services

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External wall insulation (EWI) is a modern solution designed to enhance your home’s energy performance, reduce heating costs, and give your property a fresh new look. Ideal for homes with solid walls or properties where internal insulation isn’t feasible, EWI combines functionality with aesthetic appeal.

What is External Wall Insulation?

External wall insulation involves adding a protective layer of insulation material to the outside of your home’s walls. The insulation is typically finished with a render or cladding, providing a durable and visually appealing exterior.

EWI is particularly suited to older properties with solid walls, which can lose up to 45% of their heat through the walls.

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Benefits of External Wall Insulation

Improved Energy Efficiency

By reducing heat loss through walls, EWI helps maintain a consistent indoor temperature, leading to lower energy consumption and reduced heating bills.

Enhanced Comfort

A well-insulated home is warmer in winter and cooler in summer, ensuring year-round comfort for occupants.

Modernised Appearance

External wall insulation can refresh the exterior of your home, offering a range of finishes to suit traditional or modern aesthetics.

Noise Reduction

EWI adds an extra layer of soundproofing, reducing noise from the outside and enhancing indoor tranquillity.

Increased Property Value

Energy-efficient homes are more attractive to potential buyers, and the improved appearance adds to your home’s curb appeal.

Reduced Carbon Footprint

Lower energy usage means a smaller environmental impact, contributing to a greener future.

The Installation Process

Property Assessment

A professional surveyor evaluates your home’s suitability for EWI and identifies any preparatory work required, such as addressing damp or structural issues.

Preparation

Walls are cleaned, and any repairs or reinforcements are carried out to create a stable surface for insulation.

Insulation Application

Insulation boards or panels are fixed to the exterior walls using adhesive or mechanical fixings.

Reinforcement

A reinforcing mesh is applied over the insulation to ensure durability and prevent cracking.

Finishing

The final layer, whether render or cladding, is applied to protect the insulation and enhance the property’s appearance.

Types of External Wall Insulation

Expanded Polystyrene (EPS)

Lightweight and cost-effective.
Excellent thermal performance.
Commonly used for a variety of properties.

Mineral Wool

Fire-resistant and breathable.
Provides both thermal and acoustic insulation.
Ideal for homes in noise-prone areas.

Phenolic Foam

High-performance insulation with a slim profile.
Suitable for properties with space constraints.

Wood Fibre

Eco-friendly and breathable.
Suitable for older buildings and heritage properties.

FAQ

EWI is best suited for solid-wall properties. It may not be suitable for homes with cavity walls that can accommodate cavity insulation.

The process typically takes 2 to 4 weeks, depending on the property size and complexity of the work.

The render or cladding finish may require periodic cleaning or repainting, but overall, EWI is low-maintenance.

EWI is a complex process that requires professional expertise to ensure effective insulation and compliance with building regulations.

Yes, by keeping walls warmer, EWI reduces the likelihood of condensation forming on internal surfaces.

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