Home Insulation
External Wall Insulation Services in London
Millions of households in the UK suffer from exorbitant energy bills due to their uninsulated external walls.
Transform Your Home with Expert External Wall Insulation Services
Looking to improve your home’s energy efficiency and aesthetic appeal? Our professional external wall insulation services are specifically designed for London homeowners to reduce heat loss, cut energy bills, and enhance the look of your property. With our tailored solutions, you can enjoy a warmer, eco-friendly home that performs better throughout the year. Get in touch today for a free assessment and discover how we can transform your home’s insulation and effectively curb energy wastage.
What is Home Insulation?
External wall insulation involves applying an insulating layer to the exterior of your home’s walls, followed by a protective render or cladding. This method improves thermal efficiency by reducing heat transfer, making it especially effective for older properties with solid walls that lack cavity insulation.
Key Benefits of External Wall Insulation
- Reduced Energy Bills: Significantly lowers heating costs by minimising heat loss.
- Improved Home Comfort: Maintains consistent indoor temperatures. Cracks in the wall indicate structural vulnerabilities and poor thermal performance.
- Enhanced Property Appearance: Updates the exterior of your home with a sleek, modern finish.
- Increased Property Value: Homes with external wall insulation are more attractive to potential buyers.
- Reduced Carbon Footprint: Helps reduce your energy consumption and combats climate change.
- Protection Against Damp and Mould: Prevents moisture penetration and prolongs the lifespan of your walls.
- Noise Reduction: Enjoy a quieter living space by minimising external noise.
Why Choose Our Services?
- Certified team with decades of experience in delivering high-quality insulation solutions
- PAS 2035 compliant
- Trustmark approved installers
- 25-year insurance-backed guarantee
- 2-year workmanship warranty
- Managed 1,000s of EWI projects
Our Working Process
Initial Consultation
We discuss your insulation needs and requirements to understand your concerns and answer any questions you may have.
Customised Work Plan
We provide a detailed plan tailored to your property's size and specific insulation needs.
Expert Installation
Our certified professionals ensure high-quality workmanship.
Ongoing Support & Maintenance
We offer guidance and advice to help you maintain the effectiveness of your insulation whenever you need it.
How Does External Wall Insulation Work?
External wall insulation is installed in layers:
- Preparation: Clean and repair the exterior wall surface.
- Insulation Layer: Attach insulating materials such as rigid foam boards to the exterior walls.
- Reinforcement: Add a protective mesh layer to ensure durability.
- Finish: Apply a weather-resistant render or decorative cladding for a polished look.
What External Wall Insulation Grants Are Available?
The London government offers several grants and schemes to make external wall insulation more affordable, such as:
- Energy Company Obligation (ECO)
- ECO4 Grant
- Great British Insulation Scheme (GBIS)
- Warm Homes Grants
Our team will assist you in checking eligibility and applying for these grants to reduce your upfront costs.
Am I Eligible for a Home Insulation Grant?
Eligibility for an external wall insulation grant in 2025 depends on the following key criteria:
- EPC Requirements – In the UK, every property—whether newly built, being sold, or rented—requires an Energy Performance Certificate (EPC). This certificate provides an energy efficiency rating from A to G, along with important details like energy costs and suggestions for potential eco-friendly improvements. If your property falls under ratings D, E, F, or G, it may be eligible for ECO4 or GBIS or Warm Homes Grants for external wall insulation. These grants are designed to support low-income households living in the least energy-efficient homes, helping reduce high energy bills. Not sure about your EPC rating? Check your home’s energy performance on the official UK government website: https://www.gov.uk/find-energy-certificate
- Council Tax & GBIS Eligibility – Council Tax is a UK local government charge that funds services like waste collection, policing, and schools. The amount is based on your property’s valuation band (A to H) and local authority rates. The Great British Insulation Scheme (GBIS) considers Council Tax bands when determining insulation grant eligibility. Households in lower bands (A to D in England, A to E in Scotland & Wales) may qualify. EPC ratings and other factors also affect eligibility.
- Benefit Requirements for ECO4, Warm Homes Grants, & GBIS (Low-Income Group) – To qualify for the ECO4, Warm Homes Grants, and GBIS Low-Income Group schemes, you or your tenant must meet specific eligibility criteria, including receiving certain benefits. These include:
- Income-based Jobseeker’s Allowance (JSA)
- Income-related Employment & Support Allowance (ESA)
- Income Support (IS)
- Pension Credit Guarantee Credit (PCGC)
- Working Tax Credit (WTC)
- Child Tax Credit (CTC)
- Universal Credit (UC)
- Housing Benefit
- Pension Credit Savings Credit (PCSC)
- Child Benefit (subject to income caps)
For a full list of qualifying benefits, visit the Ofgem website. Alternatively, apply online with Infinity Energy Organisation for a quick, hassle-free, and cost-free application process.
What Process Do We Use for Our External Wall Insulation?
The External Wall Insulation (EWI) Process enhances energy efficiency by adding insulation to exterior walls:
- Install Insulation Boards (EPS/XPS) – Fixed with adhesive and mechanical fixings.
- Apply Basecoat (Two Layers + Mesh) – Strengthens and prevents cracks.
- Silicon Primer – Improves adhesion and water resistance.
- Apply Topcoat – Smooth, mosaic, or silicon render for a durable finish.
This process improves insulation, reduces energy loss, and protects the building.
For External Wall Insulation (EWI), we use the following insulation boards:
- EPS (Expanded Polystyrene Insulation) – Lightweight, breathable, and cost-effective.
- XPS (Extruded Polystyrene Insulation) – Denser, moisture-resistant, and highly durable.
Both options enhance thermal efficiency and reduce energy loss.
Frequently Asked Questions (FAQs)
What is the purpose of home insulation?
How do I know if my home needs insulation?
What are the benefits of external wall insulation?
External wall insulation enhances thermal efficiency, reduces heat loss, prevents damp issues, and improves your home’s exterior appearance.
Can I get a government grant for insulation?
Yes, ECO4 and GBIS offer insulation grants for eligible London homeowners to improve energy efficiency.
How long does the insulation installation take?
It usually takes up to 10 to 14 days and can take longer in winter as external wall insulation is very weather-dependent.
Can old homes be insulated?
Yes! Older homes benefit from tailored solutions like solid wall insulation, loft insulation, or eco-friendly options.
Does insulation reduce noise?
Yes, insulation dampens external noise, creating a quieter indoor environment.
How do I maintain insulation?
Inspect regularly for gaps or damage and reseal areas to maintain performance.
How can I book a free home assessment?
INFINITY PROPERTY MANAGEMENT LTD.
