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Best Insulation Specialists in the UK (2025)
- When selecting an insulation company, review customer feedback, evaluate their range of services, and verify their certifications and accreditations.
- Many insulation companies assist homeowners in applying for grants, which can offer free or reduced-cost insulation services.
- On average, insulation companies charge approximately £250 per day for each worker.
Choosing the right insulation company is crucial for a comfortable and energy-efficient home. In the UK, where substantial heating is often necessary, proper insulation helps reduce energy usage and lower utility bills.
EDF Energy reports that nearly 21 million homes in the UK have inadequate insulation, causing up to 25% of annual heat loss. This results in higher energy costs and increases carbon emissions, harming the environment.
Effective insulation is key to maintaining warmth in winter and cooler temperatures in summer, enhancing comfort and reducing reliance on heating and cooling systems. With rising energy prices and a focus on sustainability, investing in a reliable insulation company can significantly improve your home’s efficiency and reduce its environmental impact. This guide highlights some of the best insulation companies in the UK to assist you in making an informed decision.
Ready to connect with the top insulation specialists in the UK? Let WhatCost simplify the process for you. Complete our fast 30-second form, and we’ll match you with up to four free quotes from leading insulation companies near you. Don’t wait any longer, click below to get started and discover the best options!
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Best insulation companies across the UK
To find the best insulation specialists in the UK, consider factors such as your preferences, budget, and location. While the average daily rate for insulation specialists is approximately £250 per person, price alone shouldn’t dictate your decision. Conducting thorough research ensures your insulation is effective, safe, and provides lasting benefits.
To help you make an informed choice, we’ve compiled a list of the top insulation companies across the UK. This list was curated based on comprehensive research, which included the following criteria:
- Customer reviews and ratings: We analysed feedback from platforms like Trustpilot, Google Reviews, and Yelp to gauge customer satisfaction and identify companies known for delivering excellent service.
- Certifications and accreditations: We reviewed professional qualifications such as memberships with the National Insulation Association (NIA) and certifications like PAS 2030 and TrustMark. These credentials indicate compliance with industry standards and a commitment to quality.
- Services offered: We evaluated the range of insulation services provided, including cavity wall, loft, solid wall, and floor insulation. We also considered the materials used (e.g., fibreglass, mineral wool, spray foam) and additional offerings like energy audits and financing options.
- Company comparisons: We assessed leading insulation specialists based on pricing, material quality, installation efficiency, customer service, and warranty terms to rank the top providers in the UK.
Finding the right insulation company to match your needs and budget doesn’t have to be a lengthy process. With WhatCost, you can simplify the search and connect with the ideal insulation installer near you. Complete our quick 30-second form, and we’ll provide up to four free quotes from top-rated installers in your area. Click below to get started and learn more!
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Companies in London and South East England
Prize Insulation Ltd, a leading insulation company based in Southampton, is renowned for its exceptional service and expertise. Its reputation as one of the top insulation companies in the area stems from several key factors:
- Experience and expertise: With over 30 years of experience, this insulation company offers a wide range of services and is one of the leading cavity wall insulation companies in the area. Additionally, they are experts in loft and solid wall insulation too.
- Customer satisfaction: Prize Insulation Ltd enjoys consistently high customer satisfaction, reflected in glowing reviews on platforms such as Trustpilot (4.9/5), Trusted Trader (4.9/5), Checkatrade (9.67/10), and Bark (5/5). Customers frequently commend the company for its professionalism, efficiency, and high-quality insulation work, showcasing its dedication to delivering exceptional results and ensuring client happiness.
- Certifications and accreditations: All technicians at this insulation company hold NVQ Level 2 Certifications in Insulation & Building Treatments (Construction) for Warm Roof Insulation, Cold Roof Insulation, and Cavity Wall Insulation. They also carry CSCS ‘Skilled Worker’ cards, are ACOP-approved, and hold accreditations such as NAPIT, as well as certifications like PAS 2030 and TrustMark. These credentials underscore their commitment to industry standards, safety, and excellence.
- Comprehensive services: Prize Insulation Ltd provides a broad spectrum of services, from various insulation solutions to energy audits designed to improve energy efficiency and reduce energy costs for their clients.
Companies in South West England
Evolve Home Energy Solutions stands out as one of the leading insulation specialists in Monmouth, South West England. Since its establishment in 2015, the company has decarbonized over 15,000 homes and continues to transform an average of 80 homes weekly. Here’s why they are a top choice in the insulation industry:
- Experience and expertise: The founders, Gary and Paul, bring a combined 60 years of experience in insulation installation, while Mike, the operations and commercial director, contributes an additional 35 years of expertise. This wealth of knowledge ensures that their insulation projects meet the highest standards for energy efficiency and client comfort.
- Comprehensive services: As trusted insulation specialists, Evolve Home Energy Solutions provides a variety of services, including loft insulation, cavity wall insulation, and solid wall insulation. They also offer heating services such as boiler replacements and air source heat pumps, ensuring comprehensive solutions for energy efficiency.
- Customer satisfaction: Clients consistently praise Evolve for their professionalism, punctuality, and effective insulation solutions. This is reflected in excellent reviews on platforms like Trustpilot (4.9/5) and MyBuilder (4.6/5).
- Grant assistance: Evolve Home Energy Solutions helps clients access home insulation grants, including the Great British Insulation Scheme. Their streamlined application process enables homeowners to quickly determine eligibility, saving time and effort while maximising financial benefits.
- Certifications and accreditations: The company holds key industry qualifications, such as PAS 2030, TrustMark, KIWA, CIGA, and Constructionline, demonstrating their commitment to quality, safety, and compliance.
- Wide area coverage: Evolve serves a broad region, including South West England, South Wales, Mid Wales, and the West Midlands, covering areas such as Herefordshire, Shropshire, and Warwickshire.
With a proven track record and a dedicated team of insulation specialists, Evolve Home Energy Solutions is a trusted name in helping homeowners improve energy efficiency and reduce carbon footprints.
Companies in North England
All Seasons Energy, a highly acclaimed and multi-award-winning UK-based insulation company, is recognised as one of the leading names in Northern England. Specialising in solar panel installations, air source heat pumps, and insulation solutions, they have earned a reputation for excellence. Here’s why All Seasons Energy stands out as a top-rated insulation company in the region:
- Extensive industry experience: With over 50 years of expertise in the energy-saving sector, including a strong focus on insulation, All Seasons Energy has become a trusted partner for improving energy efficiency in both homes and businesses.
- Certifications and accreditations: The company holds a remarkable range of credentials, including MCS accreditation, TrustMark approval, and membership in HIES. These certifications ensure that all projects are completed by certified professionals and meet the highest industry standards.
- Outstanding customer feedback: All Seasons Energy prioritises quality service, as reflected in their impressive ratings on platforms such as TrustPilot (4.2/5), Google Reviews (4.7/5), Bark (4/5), and TrustIndex (4.7/5).
- Comprehensive services: As a full-service insulation company, they offer diverse solutions, including insulation for flat roofs, lofts, cavity walls, and both external and internal walls. Additionally, they provide energy-saving services like solar PV systems, battery storage, EV chargers, and air source heat pumps.
- Commitment to sustainability: Dedicated to eco-friendly solutions, All Seasons Energy helps clients reduce their carbon footprint through sustainable home improvement options, with insulation playing a key role in their offerings.
- Grant assistance: The company supports clients in accessing available insulation grants by offering an easy-to-use online eligibility check, helping homeowners save money while improving energy efficiency.
With their combination of experience, credentials, customer satisfaction, and commitment to sustainability, All Seasons Energy is a leading insulation company for Northern England homeowners and businesses seeking reliable energy solutions.
Companies in Scotland
Heat Save Scotland, based in Glasgow with over 20 years of experience, is a highly regarded insulation installer and one of Scotland’s leading names in the industry. Their reputation is built on several key factors:
- Comprehensive services: As an experienced insulation installer, Heat Save Scotland provides a full range of services, including loft insulation, cavity wall insulation, and external wall insulation.
- Outstanding customer satisfaction: Known for their exceptional customer care, the company has earned glowing reviews on platforms like TrustPilot (4.2/5), Checkatrade (10/10), and MyBuilder (5/5). Clients frequently praise their professionalism, efficiency, and the significant improvements in home comfort and energy efficiency following their insulation work.
- Certifications and accreditations: Heat Save Scotland strictly adheres to industry standards, ensuring all insulation solutions are high-quality and safe. They hold TrustMark approval and comply with the PAS 2030 standard, further showcasing their commitment to excellence.
- Grant assistance: To make insulation more accessible and affordable, Heat Save Scotland helps customers navigate the process of securing funding and grants for their projects. This ensures homeowners can improve their energy efficiency without the full financial burden.
With a proven track record and dedication to quality, Heat Save Scotland has established itself as a trusted insulation installer for homeowners across Scotland.
Companies in Wales
InstaLoft LTD, a highly regarded insulation company, operates in Newport, Wales, with additional offices across the UK. Known for its exceptional services, expert craftsmanship, and dedication to customer satisfaction, InstaLoft has earned a reputation as a trusted name in the industry. Here’s what makes InstaLoft stand out:
- Comprehensive services: As a leading loft insulation company, InstaLoft provides a wide array of offerings, including loft insulation, loft ladders and hatches, loft boarding, loft cleaning, and clearing services. Their holistic approach ensures customers receive tailored solutions for every aspect of their loft space.
- Customer satisfaction: InstaLoft boasts numerous positive reviews on platforms like TrustPilot (4.8/5) and Checkatrade (9.32/10). Clients frequently commend their professionalism, efficient installation process, high-quality work, and meticulous attention to cleanliness during and after projects.
- Certifications and accreditations: InstaLoft’s dedication to quality is reflected in its accreditations, including TrustMark and recognition as a Which? Trusted Trader. These certifications highlight their adherence to industry standards and commitment to delivering reliable, top-tier services.
- Energy efficiency focus: InstaLoft helps homeowners in Wales and beyond reduce energy consumption and utility costs through effective insulation solutions. Their services are designed to minimize heat loss, improve energy efficiency, and promote environmental sustainability.
- Flexible finance options: InstaLoft offers convenient monthly payment plans, making their services more accessible and affordable for customers seeking to improve their home’s energy efficiency without upfront financial strain.
With a strong focus on quality, customer care, and energy efficiency, InstaLoft continues to solidify its position as a top-tier insulation company in Wales and the UK.
Companies in Midlands
WarmFront Limited, a family-run business based in Hyde, Cheshire, is a trusted insulation installer with a strong reputation for quality and customer care. Here’s why they are considered one of the leading names in the insulation industry:
- Extensive experience: Established in 2005, WarmFront Limited brings over 30 years of expertise in the insulation industry, ensuring reliable and effective solutions for homeowners.
- Comprehensive services: As a dedicated insulation installer, WarmFront offers a wide range of services, including loft insulation, cavity wall insulation, solid wall insulation, and floor insulation, providing tailored solutions to meet diverse customer needs.
- Eco-conscious approach: WarmFront is committed to reducing fuel poverty across the UK by delivering top-tier insulation services. Collaborating with electricity companies, they help customers adopt more sustainable practices and improve energy efficiency.
- Certifications and accreditations: WarmFront Limited is accredited by respected organisations such as Checkatrade, Gas Safe, CHAS, and Safe Contractor Approved. These certifications reflect their commitment to high standards, safety, and excellence in service delivery.
- Customer satisfaction: With excellent reviews on platforms like Checkatrade (8/10), WarmFront’s customers frequently praise their professionalism, reliability, and the superior quality of their insulation work.
By combining expertise, eco-conscious values, and outstanding customer service, WarmFront Limited has established itself as a trusted insulation installer for homes in Cheshire and beyond.
Companies in Northern Ireland
Clever LTD, a trusted insulation specialist based in Belfast, Northern Ireland, is recognised as one of the region's leading providers of insulation solutions. Here’s what sets them apart:
- Comprehensive services: As a versatile insulation specialist, Clever LTD offers a wide array of services, including loft insulation, cavity wall insulation, spray foam removal, wall insulation extraction, and ventilation. Their diverse offerings make them a one-stop solution for enhancing home energy efficiency.
- Exceptional customer satisfaction: Customers consistently praise Clever LTD for their efficiency, punctuality, and the noticeable improvements in home energy performance after installation. With glowing reviews on platforms like Google (5/5), they have built a strong reputation for delivering high-quality services and professional customer care.
- Certifications and accreditations: Clever LTD holds essential industry certifications, including PAS 2030 and TrustMark, demonstrating their adherence to rigorous quality and safety standards in insulation services.
- Grant assistance: Clever LTD supports homeowners by helping them access grant schemes available in Northern Ireland. They guide clients through the application process, assessing eligibility to ensure customers can benefit from financial support for their insulation projects.
With a commitment to quality, comprehensive services, and customer satisfaction, Clever LTD has earned its reputation as a leading insulation specialist in Northern Ireland.
How to select the right insulation specialists
Finding the perfect insulation company is essential to ensure your home gets effective, durable, and high-quality insulation. To make the best choice, consider the following factors:
- Reputation: Look for reviews on platforms like Trustpilot, Google Reviews, or Yelp to gauge customer satisfaction. Consistently positive feedback signals reliability and excellent service.
- Warranties and guarantees: Confirm that the company offers warranties on their installation work, ensuring peace of mind and long-term protection.
- Insurance coverage: Verify that the company has liability insurance to cover any potential damages to your property and workers' compensation insurance for employee safety during installation.
- Sustainable practices: If environmental impact matters to you, ask about the company's use of eco-friendly materials. Additionally, if you’re seeking cost-effective, durable options like fibreglass insulation, check if they provide this service.
- Certifications and accreditations: Ensure the company holds certifications such as PAS 2030 or TrustMark and is a member of industry organisations like the National Insulation Association (NIA). These credentials indicate adherence to high industry standards.
- Experience: An insulation company with years of experience is likely to have refined its processes and built a solid reputation for quality and reliability.
Get and compare quotes from various insulation specialists
Comparing multiple quotes from insulation specialists is a critical step in finding the best deal for your home. Here’s why:
- Cost comparison: Reviewing quotes helps you identify the most cost-effective option without compromising quality. Different companies may offer varying prices for the same service.
- Service insights: Quotes provide clarity on services offered, including materials, installation methods, warranties, and aftercare options.
- Quality assurance: Not all insulation companies maintain the same standards. Comparing quotes allows you to evaluate their reputation and the quality of work they deliver.
- Informed decisions: Detailed quotes empower you to make decisions that align with your needs, ensuring a smooth and hassle-free insulation process.
Simplify your search for the best insulation specialist in your area with WhatCost. Fill out our quick 30-second form to receive up to four free quotes, completely transparent and with no obligations. Don’t waste more time, click below to learn more!
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- Get free quotes
- Choose the best offer
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