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Miro gave me a fair price and had a slot so could do the work next day. He did an excellent job and was polite, clean and tidy. Had a short lunch break and was finished mid afternoon. Would recommend.
Richard
Brilliant, very nice man and did a very good job
Liam
GM Plasterers did a very good job for us. Quickly and up to a high standard.
Magda
Did you know that up to 45% of heat escapes through uninsulated solid walls? External wall insulation (EWI) is one of the most effective ways to weatherboard your property, eliminate dampness, and dramatically lower heating costs. Rated People connects you with trusted, skilled external wall insulation companies who safely install high-quality thermal barriers and stunning decorative renders. Post your job for free to receive up to three local quotes today.
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External wall insulation installers – Rated People
What can an external wall insulation specialist help with?
External wall insulation is a multi-layered construction process that wraps the outside of your property in a thermal blanket. Qualified EWI contractors possess the specialist scaffolding, materials, and rendering skills required to transform your home’s efficiency:
- Solid wall insulation fitting: Securing high-performance insulation boards directly to older brick or stone exterior walls using specialised mechanical fixers and adhesive mortars.
- Weatherproof rendering and cladding: Applying a durable reinforcement mesh layer followed by a decorative top-coat render. You can choose from smooth, textured, tiled, painted, or panelled finishes to boost curb appeal.
- Moisture control and vapour barriers: Installing breathable membranes and vapour barriers that stop exterior rainwater from penetrating while warming the walls to reduce internal condensation.
- Full site preparation and re-fixing: Managing the entire layout from erecting safe scaffolding to removing and cleanly re-fixing downpipes, satellite dishes, and fixtures once the insulation is complete.
How much does external wall insulation cost and save?
While solid wall insulation requires a larger upfront investment than basic cavity filling, the subsequent heating bill savings are significantly higher. Home improvements of this scale are priced based on the footprint of the building and wall condition:
- Average installation costs: Total project costs typically range between £8,000 and £22,000. A standard semi-detached house usually falls in the middle of this scale, while large detached properties sit at the top.
- Energy bill savings: According to the Energy Saving Trust, wrapping uninsulated solid walls can save you hundreds of pounds annually on your energy bills, making it a highly rewarding long-term investment.
- Government funding & grants: You may be eligible for a financial grant to cover or heavily subsidise these costs under schemes like the Energy Company Obligation (ECO). Check with your energy supplier or the Energy Saving Trust for details.
Find a local external wall insulation installer
Internal vs. external: Is EWI right for your property type?
Before booking a specialist, it is essential to check your underlying wall structure and weigh up your installation choices:
- Are my walls solid or cavity? EWI is designed for older solid walls (typically built before the 1920s). You can identify solid walls by an alternating brick pattern of full and half-length bricks, or by measuring your door opening—solid walls are usually less than 30cm thick.
- Minimal internal disruption: Unlike internal insulation, which requires losing valuable room space, moving radiators, and complete interior redecoration, EWI is fitted entirely outside. You can live inside undisturbed while the work takes place.
- Timeline and weather: On average, an installation takes 3 to 6 weeks to complete. Because the rendering process requires dry conditions, bad winter weather can extend this timeframe.
- Planning permission regulations: If your chosen render finish dramatically changes the look of your house compared to your neighbours, you may need planning permission. This is mandatory if you live in a listed building or a designated conservation area.
Find a local external wall insulation installer
Other external wall insulation FAQ's
What qualifications and insurance should I check for?
While there are no strict legal frameworks, look for tree surgeons or installers holding a City & Guilds NVQ Certificate or Diploma in Insulation and Building Treatments. Reputable companies should also hold Public Liability Insurance and ideally be members of trade bodies like the Insulated Render and Cladding Association (INCA).
What are the top questions to ask an EWI contractor before hiring?
Protect your project by asking: Do you provide a comprehensive insurance-backed guarantee for the render? Will full scaffolding costs be handled within your fixed quote? Will you install an integrated vapour barrier to prevent moisture locks inside the wall structure?
Will external wall insulation fix damp problems inside my house?
Yes, if it is caused by condensation. By warming the temperature of your internal walls, EWI prevents warm, humid indoor air from condensing into water droplets on cold surfaces. Note that it cannot cure rising damp caused by a failed ground-floor damp proof course (DPC).
Sign up as an external wall insulation specialist
Are you an external wall insulation installer or rendering specialist? Homeowners are actively looking for trusted specialists to lower their energy bills, upgrade solid-wall properties, and apply modern weatherproof rendering. Join our network today to get access to local insulation leads, fill your pipeline, and grow your business.
We are a trusted and experienced team specialising in high-quality renovation, construction, and finishing services across London. Since 2014, we have been helping clients transform their properties with a strong focus on craftsmanship, attention to detail, and reliable service. We take pride in delivering clean, precise, and long-lasting results on every project. Our approach is simple: professionalism, transparency, and respect from start to finish. Our services include: • Full Renovations & Construction • Painting & Decorating (including Spray Finishes) • Plastering & Skimming • Plasterboard Installation • Wallpaper Installation & Removal • Carpentry • Bathroom & Kitchen Installation • Wooden Floor Sanding & Finishing (Varnish/Oil) • Vinyl & Laminate Flooring • Window Privacy Film Fully insured and committed to delivering work to the highest standard. Feel free to view our gallery and contact us for a free quotation. We look forward to working with yo 👉 “Free quotation available” 👉 “Reliable & punctual service” 👉 “Attention to detail guaranteed”
Ricardo and his team did a great job renovating my hallway which involved a lot of plastering, sanding and painting. Always on time and has a great attitude - worked very hard to finish job to high standard and very approachable. Highly recommend and will use again!
Welcome to TJR Building Services, where expertise converges with excellence in house extensions, renovations, and all-encompassing building solutions. As a family-run business with an illustrious legacy of over 30 years in the plumbing and heating industry and a robust background in the building trade, we take pride in transforming your vision into reality. Specializing in house extensions, TJR Building Services offers a spectrum of services covering every facet of your project, from initial groundwork to the final finishing touches. Our team comprises adept professionals, including experienced gas engineers, bricklayers, and plasterers, all proficient in navigating the complexities of home extensions. From conceptualization to execution, we bring a wealth of knowledge and hands-on experience, ensuring your dream space is realized with precision and care. Our dedicated team of 8-10 professionals is passionate about delivering top-notch craftsmanship in all aspects of building work. Recognizing the importance of a reliable and skilled workforce, we invest in continuous training and development to stay at the forefront of the industry. Whether it's creating a seamless blend of functionality and aesthetics or addressing specific needs within renovations, we bring a wealth of expertise to elevate your project to new heights. At TJR, we are a fully insured company, placing the safety and security of our clients at the forefront. Our commitment to excellence extends beyond craftsmanship to offer you the peace of mind that comes with working with a reputable and reliable partner. Trust us to breathe life into your ideas, with an unwavering dedication to quality, integrity, and customer satisfaction that sets TJR Building Services apart in the building industry. Your vision, our expertise – together, we build dreams.
Would highly recommend Wayne. Quick response to my advert, came out to look at the job quickly and arrived early, gave me the best quote and has done the job when he said he would and to a great standard. Really helpful and friendly, wouldn’t hesitate to use him again for future jobs.
AK Construction SW LTD is an experienced, growing building company based in Taunton, Somerset. We cover all aspects of the building, maintenance and decoration trades and we love to leave a finished job that we can be proud of. We're well known for the quality of our work and attention to detail. As such, our services are sought after from small jobs to larger projects like extensions and refurbishments. We also specialise in bespoke English Larch decking and fencing as well as outdoor offices and garden rooms to transform your outdoor areas and add long lasting kerb appeal to your home. We're available to undertake a diverse range of jobs big and small, from skilled and detailed refurbishments, bathroom remodelling, kitchen installations, carpentry, decorating, plumbing, general building and electrical repairs, to complete renovations, improvements and property extensions. Our small and friendly team of skilled tradesmen take pride in our work and strive to finish each job to a high standard and would love to come and quote for your needs. All work fully insured.
Fred and his team did a brilliant job replacing my bathroom floor and shower. Every effort was made to ensure job was completed to the highest standard and we can’t be happier with the finished product. Would highly recommend AK constructions SW for your building needs.
Trade Force Constriction
External Wall Insulation
Hi their. At Tradeforce Construction we deliver high quality work every time to ensure that all our customers are satisfied with the work carried out. We deliver high standard internal and external plastering throughout central Scotland.
I started out in the Plastering industry in 1987, with all types of Plastering and Drylining Systems covered, Traditional and Modern, Domestic and Commercial Work undertaken, Honest Reliable Professional and Quality assured.
An excellent tradesman! Mark responded quickly to advert, came the same day to look at the work and gave a very competitive quote. On the arranged day he arrived on time and started work immediately. The job took a day longer than anticipated (due to the building structure NOT Mark) and at the end of each day he left the site clean and tidy. We felt fully informed throughout the process and I would not hesitate to highly recommend Mark to others. Thanks for all your hard work, the lounge looks great!
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Hello everybody, with more than 15 years of experience we provide rendering,plastering and tape and jointing services. We are highly skilled and fully committed to completing every job to the very highest standards.
Danbury Ltd did a fantastic job repairing a damp damaged internal wall. Communication was excellent from start to finish, they were flexible with dates and times to fit around my schedule, and the finished job looked perfect. I strongly recommend using their services.
Our team has the skills, experience, qualifications, and desire to ensure we deliver a high standard of workmanship and complete customer satisfaction. cescoating_co_uk
With years of experience in the building industry and a strong track record of positive client feedback, we specialize in delivering high-quality renovation and construction projects. From full kitchen and bathroom renovations to loft and garage conversions, home extensions, and bespoke garden rooms or offices — we have the expertise to bring your vision to life. Our focused, hands-on approach means every project receives our full attention from start to finish. We don’t split our time across multiple jobs — instead, we commit fully to each client to ensure efficiency, clear timelines, and exceptional results. We pride ourselves on our strong work ethic, where customer satisfaction always comes before profit. We offer free consultations and maintain clear, consistent communication throughout every stage of the project. Our goal is simple: to deliver outstanding work and ensure our clients are fully satisfied at every step.
15 Years Experience in the industry. I specialise in Interior & Exterior design, repair, refurbishment and all general handyman work so feel free to get a quote on big or small jobs. From fixing shelves to making an extension to your house with my team of dedicated professionals. I look forward to hearing your idea’s and making them a reality. Feel free to contact me & I look forward to hearing from you.
Huseyin and his son could not have been more professional or helpful. Huseyin came to quote for the job (concrete frame around a window), and explained exactly what he would do and how much it would cost. It was great how transparent he was and easy to deal with. I would recommend his company. Thanks
Properties Direct Maintenance
External Wall Insulation
properties direct maintenance we specialise Rendering and plastering we also cover any, joinery work Widows and doors Locksmiths Convertions We priorites in staying clean on all our sites we work on. We hope to see you soon and look forward to working with you City & guilds qualified.
About Andrey's Property Services. Thank you for looking at our profile page here at Andrey's Property Services. We are a team of highly skilled multi-talented tradespeople and between us we can do pretty much all work required in your home to a very good standard. This can be confirmed by looking at our excellent reviews and pictures of our previous work. Some of the things that make us stand out from the rest - NO UPFRONT DEPOSITS We only ever ask for payment once the work is complete and you have had a chance to make sure you are totally happy with everything. WE DO EVERYTHING Why have multiple tradespeople or multiple companies working on the same job when we can manage the whole project start to finish and take responsibility and ownership for everything. REVIEWED & CHECKED We have been through numerous checks into our background by independent organisations including TrustATrader and others that you can find on our website Including criminal background checks, public liability insurance checks, necessary qualification checks. ALL WORK GUARANTEED At Andrey's we are so confident in the quality of our work that we offer a full one to ten year guarantee on any work we do, totally free of charge. This combined with our 1 million pound public liability insurance should give you full confidence in Andrey's Property Services.
maintaince contractor muliskilled
Excellent service Will recommend to everyone
Starting from a time served apprenticeship, within the McCall family trade, Matthew McCall plastering has gone on to establish itself as one of the leaders in the industry in the southwest. High standards at affordable pricing is the focus for us.
Needed our cloakroom plastered, did a fantastic job and the price was very reasonable, would highly recommend
We are a limited business local to blackpool, friendly, trustworthy and reliable in the trade. We offer a range of services available to the end user ie. Roofing/flat roof/ re-roof. We have 40 years experience so feel free to have a look at the reviews on our page and ask any questions. Yours faithfully Mark
20 years in the Business… We specialise in Plastering & General Building and cover all aspects of it. Whether you need a small crack or need an extension built. We are the correct company. We offer and guarantee the best quality of work and competitive prices. We work all around London and have a large variety of portfolio available. We are a business where you can find all the services in one place. Choose us and do it once!
Deniz came promptly and did a good job repairing and plastering the wall. However as he had to take a radiator off it caused the water pressure to drop in the boiler and we were left with cold water. It would have been 5 stars if he had checked that before he left!
IBS SERVICES LTD it is a small family business that operates over 15 years, concentrating on quality and customer service with a friendly approach. We help our customers through all the job stages, from the design to the complete delivery of the task.
I gave a garage conversion project into a full en-suite bedroom to Radu. Radu surpassed all my expectations on his work ethics, (always punctual), work quality (highest level), integrity and affordable. He never cut corners and the final result shows. Radu spent as long as it took to get the job completed. I have used Radu for a lot of other smaller jobs since and he has been doing this very effectively and quickly. Well done Radu and thank you.
Yalcin Nurla builders
External Wall Insulation
Over 20 years experience in refurbishent houses
We are a small family run business, our services include New builds, lofts, extensions, refurbs, we also take on small refits kitchens, bathrooms, gardens, structural alterations and ground works, plumbing and electrical. We aim to provide a comprehensive build package under one umbrella. Since opening our business in 2016 our main principle is "never cut corners or standards". We have managed to grow the business in the last few years immensely and establish ourselves as a recognised name. We aim to minimise stress for our clients by offering our expertise in all areas of the construction process and undertaking comprehensive project managing services with design consultation service also available throughout your project. We can provide all the services above by our own in-house team not 3rd parties or sub contracting. If you would like to know more about the work we do or would like a quotation for a project, please send us a message from the contact page or give us a call. We aim to respond to all queries within 48 hours.
i used julian for the job i wanted done. it was completed in a couple days. he was on time and conscientious.really happy with the result.
Over 10 years experience of helping renovate and maintain properties to satisfy the needs of our clients
Didn’t turn up. No explanation. I had to contact him to ask why he didn’t turn up, he said sorry he was busy but could come next week. I declined his offer.
My names Tom, I have been in the real estate sector for over 10 years and have done everything from general property maintenance, new bathrooms, painting/decorating, demolition contracts and most recently constructed 9 ultra high spec homes. High quality and impeccable workmanship are key values to me and ensuring the client is satisfied and more, with the work they are receiving. I am very well connected with all trades and can provide a top tier service for all types of project management no matter how big or small the job may be. I am also extremely capable at doing many manual labour jobs, but often favour a shorter timeline for my clients project completion and therefore prefer to draft in experienced trades to get the job completed. Above all I am very friendly, well spoken and always keen to deliver what is asked of me.
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