Loft, Cavity & Solid Wall Insulation: Maximise Energy Efficiency

A man is installing insulation on the roof of a building.

Why Insulation Matters

Proper insulation is one of the most effective ways to improve energy efficiency, lower heating bills, and create a comfortable living environment. By preventing heat loss, insulation ensures your home stays warm in winter and cool in summer, reducing your reliance on heating and cooling systems.

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Types of Insulation We Offer

Loft Insulation

  • Prevents up to 25% of heat loss through the roof.
  • Helps maintain a consistent indoor temperature year-round.
  • Reduces energy consumption and lowers utility bills.
  • Quick and non-invasive installation.


Cavity Wall Insulation

  • Fills the gap between external walls, reducing heat escape.
  • Can lower heating costs by up to 35%.
  • Helps prevent moisture build-up and damp issues.
  • Enhances your home's thermal efficiency.


Solid Wall Insulation

  • Ideal for homes without cavity walls, preventing up to 40% heat loss.
  • Available in internal and external insulation options.
  • Improves soundproofing and overall home insulation.
  • Can increase your property’s market value.


A brick wall with a piece of insulation on it.

Benefits of Insulation

  • Lower Heating Bills – Reduce energy consumption and cut costs.
  • Improved Comfort – Keep your home warm in winter and cool in summer.
  • Eco-Friendly – Reduce carbon footprint by using less energy.
  • Government Grants Available – Potential funding options to cover installation costs.
  • Quick Installation – Minimal disruption with long-lasting benefits.

Professional Installation & Support

Our expert team ensures high-quality installation with minimal disruption. We conduct an initial assessment to determine the best insulation solutions for your home and provide guidance on available grants or incentives.

Get Your Free Assessment Today


Interested in enhancing your home’s insulation? Contact us for a free consultation and discover how our insulation services can help you save money and stay comfortable all year round.

Contact Us

Contact us

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Our office

Boundary House, Cricket Field Road, Uxbridge UB8 1QG

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Call us

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20+

Years of
experience

ABOUT US

Why Choose Alpha Solar Ltd?

We provide premium renewable energy solutions to homeowners and

businesses looking to reduce their energy costs and carbon footprint. With over a decade of expertise, we specialize in the installation of solar panels, battery storage, air source heat pumps, and insulation, delivering high-quality, energy-efficient upgrades tailored to your needs.

  • Trusted & Accredited Installers

    We pride ourselves on delivering exceptional quality and peace of mind with every installation. Our team is fully accredited by industry-leading bodies, including MCS (Microgeneration Certification Scheme), TrustMark, RECC (Renewable Energy Consumer Code), and NICEIC (National Inspection Council for Electrical Installation Contracting). These certifications reflect our commitment to adhering to the highest standards of safety, professionalism, and customer satisfaction. When you choose us, you’re guaranteed a trusted partner who meets and exceeds UK regulations, ensuring reliable, efficient, and long-lasting renewable energy solutions.

  • Bespoke Energy Solutions

    We understand that every home is unique. That’s why we design bespoke energy systems tailored to your property’s specific needs. From solar panels and battery storage to air source heat pumps and insulation, our expert team carefully evaluates your energy requirements to create a solution that maximizes efficiency and delivers significant savings. With our personalized approach, you can enjoy optimized energy performance and lower utility bills, all while contributing to a greener future.

FAQ

  • What are the benefits of loft, cavity, and solid wall insulation in Greater London and Berkshire?

    Insulating your home in Greater London and Berkshire can significantly reduce heat loss, lower energy bills, and improve home comfort. It also helps reduce carbon emissions, making your property more eco-friendly.

  • How much does loft insulation cost in Buckinghamshire and Bedfordshire?

    The cost of loft insulation in Buckinghamshire and Bedfordshire varies depending on your home's size, but grants and government funding may cover most or all of the cost.

  • What is the difference between cavity wall and solid wall insulation in Oxfordshire and Surrey?

    Cavity wall insulation is injected into the gap between two layers of brickwork and is ideal for homes built after the 1920s.


    Solid wall insulation is applied either internally or externally to homes with no wall cavity, improving thermal efficiency in older properties across Oxfordshire and Surrey.

  • What insulation grants are available in West Sussex and East Sussex?

    Homeowners in West Sussex and East Sussex may qualify for:


    ECO4 Grants – Available for eligible low-income households

    Great British Insulation Scheme (GBIS) – Helps cover insulation costs

    Local council incentives – Additional funding may be available

  • How long does it take to install loft, cavity, or solid wall insulation in Surrey and Hampshire?

    Loft insulation takes 2-4 hours


    Cavity wall insulation takes half a day


    Solid wall insulation may take a few days, depending on the size of your home

  • Is my home suitable for cavity wall insulation in Essex and West Sussex?

    Most homes built after the 1920s in Essex and West Sussex have cavity walls and are suitable for insulation. However, a free assessment can confirm eligibility and potential energy savings.

  • Will insulation cause damp or condensation issues in East Sussex and Cambridgeshire?

    Properly installed cavity and loft insulation reduces condensation and damp issues by maintaining stable temperatures. Ventilation improvements may be recommended alongside solid wall insulation.

  • Why choose us for insulation in Greater London and Oxfordshire?

    Fully certified and experienced insulation specialists


    Help with grant applications and funding support


    High-quality materials and expert installation


    Significant energy savings with long-term benefits