
External Wall Insulation
Keep Your Home Warm, Stylish, and Energy Efficient
At SeventyOne, we specialise in high-quality external wall insulation solutions that improve your home’s energy efficiency, reduce heating costs, and enhance its appearance. Whether you’re renovating a property or looking to upgrade your current insulation, our expert team is here to provide durable, stylish, and long-lasting solutions tailored to your needs.
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What is External Wall Insulation?
External Wall Insulation is a method of improving a building’s thermal performance by adding an insulating layer to the exterior walls. This layer is then covered with a protective render or cladding to create a weatherproof, energy-efficient finish. External Wall Insulation is suitable for a wide range of properties, from modern homes to older buildings in need of a thermal upgrade.
Benefits of External Wall Insulation
Choosing SeventyOne for your external wall insulation comes with a host of advantages:
- Energy Savings - Reduce your heating bills by keeping your home warmer in winter and cooler in summer.
- Enhanced Comfort - Enjoy consistent indoor temperatures with fewer drafts and cold spots.
- Aesthetic Upgrade - Choose from a variety of finishes, textures, and colours to give your home a fresh, modern look.
- Increased Property Value - Improved energy efficiency and curb appeal can boost your property’s market value.
- Noise Reduction - External insulation adds an extra layer of soundproofing from outside noise.
- Weather Protection - Shield your walls from damp, rain, and harsh weather conditions.


Our External Wall Insulation Process
At SeventyOne, we follow a streamlined and professional process to ensure your EWI installation is efficient, safe, and long-lasting:
- Assessment & Consultation - Our experts visit your property to assess your walls, insulation needs, and preferred finish.
- Design & Planning - We provide a tailored plan, including materials, textures, and colours that suit your home.
- Preparation - Walls are cleaned, repaired, and prepared to ensure a perfect adhesion of the insulation system.
- Installation - High-performance insulation boards are fixed to the walls and covered with a durable render or decorative finish.
- Finishing Touches - We ensure all edges, corners, and details are perfectly finished for a sleek, professional look.
Why Choose SeventyOne?
We understand that every home is unique. SeventyOne brings a combination of experience, attention to detail, and customer-focused service:
- Locally trusted in Jersey with a reputation for excellence.
- High-quality materials designed for durability and energy efficiency.
- Fully trained and certified installers.
- Transparent pricing with no hidden costs.
- Dedicated aftercare and support.
Ready to Upgrade Your Home?
Invest in comfort, savings, and curb appeal with External Wall Insulation from SeventyOne. Contact us today for a free consultation and let us show you how External Wall Insulation can transform your home.






