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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.

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Brilliant, very nice man and did a very good job

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GM Plasterers did a very good job for us. Quickly and up to a high standard.

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One of the most cost-effective home improvements that not only adds value but keeps your house cosy in winter, is external wall insulation. We have an abundance of skilled external wall insulation companies on our books. Post your job for free and receive up to three quotes from our external wall insulation specialists.

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External wall insulation installers – Rated People

External wall insulation is a cost-effective home improvement for houses with solid walls.

According to the National Insulation Association, a massive 45% of heat escapes through the walls of houses with uninsulated solid walls. External wall insulation keeps your home warmer, adds value to your house and reduces energy bills, making it a worthwhile investment.

Installation involves applying an insulation material and weatherproof cladding to the exterior walls. The cladding that goes over the top comes in a variety of different finishes, including smooth, textured, tiled, painted or panelled.

This means you can choose a style that complements your house.

Are my walls solid or cavity?

External wall insulation is the best insulation option for older properties with solid walls.  Newer properties generally have cavity walls that are best insulated with cavity wall insulation instead. There are a few simple checks you can make to find out which type of wall you have.

Age – properties built before the 1920s usually have solid walls, while properties built after this time have cavity walls.

Brick pattern – if you’re not sure on your property’s wall type, the brick pattern on exterior walls often gives it away. Cavity walls are usually built using bricks of a uniform size, while solid walls have an alternating pattern of full and half-length bricks.

Thickness – cavity walls are thicker than solid walls.  To check how thick your walls are, open your front or back door and measure the wall through the door opening.  Cavity walls usually measure over 30cm, while anything less is usually a solid wall.

Internal wall insulation versus external wall insulation

Solid walls can either be insulated internally or externally. Budget, severity of heat loss and the condition of your walls will determine whether internal or external insulation is most suitable for your house.

Exterior wall insulation cost is more expensive, but it will improve your home’s appearance and is generally less disruptive to install. Some redecoration will be required after internal insulation has been installed.

If you’re not sure which type of insulation is right for you, external insulation companies will be able to help you decide.

What are the benefits of external wall insulation?

  • Reduces heat loss through walls.
  • Reduces energy bills.
  • Reduces internal condensation.
  • Protects walls to improve longevity.
  • Improves weatherproofing.
  • Improves sound resistance.
  • Improves appearance of your home’s exterior (curb appeal).
  • Environmentally friendly.

Moisture penetration

While external wall insulation stops moisture penetrating your exterior walls, it can’t prevent moisture entering your wall internally. It does, however, reduce damaging internal condensation by warming the wall. This causes internal moisture to condense closer to the cold external air rather than on the internal surface.

How long will the job take?

On average, it takes 3 to 6 weeks to complete the work depending on the size of the house. It can take longer if your walls need any repair work or if the weather is very bad.

What preparation work will be required?

Before any work starts, your tradesperson will need to prepare the area. Preparation will involve clearing the walls and the surrounding area of any obstructions. Scaffolding will then be erected for the duration of the job.

Satellite dishes, hanging baskets, creeping plants and anything else attached to the walls need to be removed. Check with your tradesperson what preparation work is required and who’ll be carrying it out.

How much does external wall insulation cost?

Exterior wall insulation can cost anything in the region of £8,000 to £22,000. The price of the job depends on the size of your property and the condition of your walls.

In some cases, it may be possible to get a grant to help with the cost of external wall insulation as part of the Energy Company Obligation (ECO) scheme.  Speak to your energy company to find out if you are eligible or contact the Energy Saving Trust for more details.

How much money will it save me?

While solid walls are more expensive to insulate than cavity walls, the savings that can be achieved on energy bills with this type of insulation are bigger.

Listed below are the average annual savings on energy bills after the installation of external wall insulation according to the Energy Saving Trust.

Detached£425
Semi-detached£255
Mid-terrace£160
Bungalow£175
Flat£120

The qualifications your tradesperson needs

Although there are no formal qualifications required to do the job, there are several courses and certificates available to achieve official recognition. These include a City and Guilds NVQ certificate or diploma in Insulation and Building Treatments, as well as short courses offered by product manufacturers.

Planning permission for external wall insulation

The finish you choose for the rendering will determine if your job requires planning permission. If the finish alters the appearance of the exterior of your house, you’re likely to need planning permission first.

If you live in a listed building or within a conservation area you will need to speak with your local authority. You also need to ensure all work complies with solid wall building regulations.

Insurance for external wall insulators

You should expect all reputable tradespeople to have public liability insurance as standard.  This covers any accidental damage that may be caused to your property during the work.

Questions you should ask your external wall insulator

  • Do they have any qualifications or certificates?
  • Are they a member of the Insulated Render and Cladding Association (INCA)?
  • Which decorative finishes do they offer?
  • Will they install a vapour barrier to protect from moisture in the wall?
  • Will they use full scaffolding?
  • How long do they estimate the job will take?
  • What preparation work will be required before installation?
  • Is the work guaranteed and what are the details of the guarantee?
  • Do they have public liability insurance?

Hi everyone , thanks checking my profile I’m Vas , have more than 10 years experience in construction I got level 3 diploma in carpentry, my main job is carpentry, but being in the industry so long I also can do handyman, fencing, ground work and foundation, decking, etc j

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Reviewed by Emre on 15/4/2024

Brilliant workmanship , did exactly how we needed the shelves to be made. Highly recommended

Welcome to AdvancedWall2Wall, 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, AdvancedWall2Wall 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 AdvancedWall2Wall, we are a fully insured limited 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 AdvancedWall2Wall apart in the building industry. Your vision, our expertise – together, we build dreams.

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Reviewed by Arwen on 1/4/2025

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.

I've been working in the maintenance Industry for the past 19 years and i've worked for 6 different councils in London, I've been trading since 2012 with this company.

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Reviewed by Danae on 27/6/2025

I would like to leave a review for Clear Choice and Pierre who completed my job on the 25/6. Pierre was great, friendly and very hard working because there was a bit more in the shed than I thought! Thoroughly recommend Pierre and the company. Thanks!

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.

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Reviewed by tim on 18/12/2024

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.

My company is ?been registered since 2016 and I have been working since 1987 I have so much experience of working. Is been 32 to 33 years of work in this kind of industry we Have so much experience also we promise and we deliver our work also the work that we do is exceptional?? if you are looking for a plasterer to do your job quick for you then you don’t need to look at anywhere else by contact us we will come and do the job for you and after you are going to be smiling and be happy what else do you want?? apart from we keep our clients happy all the time we put smile on their faces??????

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Reviewed by Sam on 6/7/2024

Prince arrived on time, excellent work and clearly very experienced. Nice friendly and cheerful guy. Would certainly recommend him.

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.

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Reviewed by Roberto on 21/5/2025

Professional service and reliable. Finish was to a high standard

K&M BUILDING SYSTEM is a business that specialises in all aspects of building. From extensions to driveways, kitchens, bathrooms or demolition. No job is too big or too small. We are fully covered with public liability insurance giving us and our customers peace of mind when carrying out your project. We always aim to complete your job on time to a very high standard with very competitive prices. We provide building services across Edinburgh – 7 days a week.

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Reviewed by Donal on 11/1/2025

Plastering Rendering Silicone rendering Gardening General DIY

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Reviewed by David on 27/3/2024

Reliable and communicative. Great job! The wall looks great!

we are a construction company based in the north east with over 25 years experience in the construction industry. we have a fully trained time served team of employees who work to the highest of standards. Our speciality is extensions and house refurbishment and we also undertake insurance work i.e. fire, flood and impact damage, with customer satisfaction at the top of our list. we offer a full package, from the foundation excavation to final decoration, meaning we can efficiently complete jobs without waiting for outside tradesmen to turn up. Regards Colin, Mark and the team CAM construction Group ltd

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Reviewed by Katie on 29/11/2024

Colin from cam construction was extremely helpful with our quote for potential extension work to a home we were looking to purchase. He made himself available for a specific appointment at the property, gave us some great ideas for what would be possible then fully costed it up, and even accompanied it with a proposed planning drawing. The service we received was extremely professional. We haven't been able to go ahead with the purchase for unforeseen reasons, but would recommend cam thus far.

I'm experienced handyman skilled painter & decorator , plaster inside ,external render outside ,key render, tiling, kitchen/bathroom floors general builder works

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Reviewed by Matthew on 10/2/2025

Landi did a great job at short notice and for a reasonable price. I will certainly be using him again for future jobs.

We are General Contractors and can undertake renovations/refurbishments as well as newbuild homes or extensions. We have qualified electricians, plumbers and highly carpenters. No job is too big or complicated. The principles of the business have combined experience of over 15 years and we pride ourselves on leaving our customers very happy.

Taylors Building Contractors is your go-to solution for comprehensive property maintenance services. From routine upkeep to emergency repairs, here to ensure your space remains in optimal condition. With a focus on quality, reliability, and customer satisfaction, we take the hassle out of property care.we cover all traditional trades to plastering, carpentry, plumbing, and general building maintenance. Roofing, Brickwork,Fully insured, Credit & Debit cards excepted.

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Reviewed by Richard on 13/11/2024

Steve and team did a fantastic job, fixing a few issues in the house for my tenant. Really good service and communication, and will ask him to do jobs in the future.

Elevations welcomes you here to explore and discover our services making sure your current or future projects are achievable and in trusted, experienced hands. Providing a hassle free, honest and transparent service with our one goal one vision outlook. Trading for 17 years we have built a great customer base base within the midlands and beyond. Please explore our portfolio also our website below for further information.

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Reviewed by Mosh on 8/3/2025

Even though I did not carry out the job in the end , this company was very helpful and responded to all my questions. And gave me his honest opinions.

hello, I am a responsible person, I have more than 10 years of experience in construction, painting and decorating, flooring, tiling, carpentry, plumbing, and more... I do my best to keep the client happy... contact me if you want a good quote for your work! I Regards:ION

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Reviewed by Brian on 16/6/2025

Ion was more than helpful in determining the extent of the job, the right kind of fittings and fixtures to buy and where to obtain them. He was efficient, friendly and attentive. Punctual and very hard working. Definitely a Trader for the future. Thanks for the route to Ion

Sweet Plastering & Carpentry is a small local business who pride themselves on carrying out a high standard of workmanship with a reputation of great customer service. We carry out all aspects of building work internal and external by qualified tradesman.

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Reviewed by Vicky on 5/6/2025

Very good rendering and plastering. Good team, pleasant to have around. Got the job done in good time.

We are glad to present All 4 You Contractors Ltd company which is dealing with provision of redecorating and building services. Our best asset is our comprehensive way of working. Due to being well established company in the market with vast experience we guarantee high quality and aesthetic results. We've got many years of experience in UK, Germany and Poland. Our work is guaranteed and we have a reputation for reliability and fair prices. All 4 You Contractors Ltd are fully insured, trained, competent and offer a high level of professionalism. We will give you attention, positive attitude and the best possible customer service available each and every day. All 4 You Contractors we provide staff services in: Painter/Decorator, Plasterer, Carpenter, Tiler, Multi Trader. All 4 You Contractors we are trying to be a professional company so, we provide training for our employees.

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Reviewed by Dan on 1/5/2025

Est since 1985,BDI PLASTERING prides itself on quality workmanship,reliability,and honest advice.Please click on my photos,showcasing previous works,and click onto my homeowner reviews for client testimonials.

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Reviewed by Dean on 4/10/2024

Full property renovations, extensions, loft conversions, outbuildings & more.

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Reviewed by james on 30/3/2025

Absolutely useless made our life a misery never book these had a bathroom fitted horrible job then when it leak and destroyed my front room ceiling trust when I say don't use them .

Established in 1994 Dampshield has an excellent name in the industry. We are happy to have consultations with you to go over plans before giving you a free quote. Dampshield are fully covered with public liability insurance and our Health and Safety regulations are always adhered to by constantly enforcing our on-site poli-cies.

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Reviewed by Kelly on 6/2/2025

Excellent service. Very friendly. Excellent price. Would recommend and use again

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