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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
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.
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?
I�m Harry Director of Saxon finishes, we\\\\'re a multi disciplined construction company specialising in plastering and rendering projects. With over 10 years of experience we�re proud to be known for the quality of our work and our reliable, professional service
Would definitely recommend Harry, we had a bathroom to plaster and various remedial work in other rooms where we'd had leaks etc and the work he did was excellent. The whole process was how it should be - he provided a detailed quote in writing with great communication, then turned up when he said he would and got the job done with minimal disruption and mess.
Spreads Plastering Service established since 1979. Reliable, clean & experienced service with reasonable rates in Greater London.
Superb job. Val was efficient, helpful and cracked on with the plastering of my large garden room. I am very happy with the work that he has done and would recommend him to anyone looking for a top notch plasterer.
PROFESSIONAL PLASTERING SERVICES OVER 40 YEARS' EXPERIENCE We provide expert plastering solutions for homes and businesses, delivering high-quality finishes that stand the test of time. Our Services Include: • Plastering (all types) • Rendering & Dry Lining • Wet Plastering & Skimming • Coving & Decorative Finishes • Interior & Exterior Work No job is too big or small - we pride ourselves on reliable workmanship and attention to detail
Excellent work, nice reliable chap. Steve, April Cottage
We carry out all aspects of roofing. From small roof repairs to whole roof replacements. Be it slate, tiled or stone roofing. We also do fascia and soffit replacements. We do dormer conversions, loft conversions and chimney repairs or re-builds. Lead work, flat roofs or garage roofs. All of our work and materials are guaranteed. As a trusted and reliable local firm most of our new business comes from customer recommendations. We do domestic and commercial roofing of any size. We also now do solar pv installation and external wall insulation (EWI) and have several domestic contracts with some of the UK’s largest energy providers. We strive to repair your roof in all instances and will only recommend a replacement where absolutely necessary. We pride ourselves on providing all customers with the most cost-effective solution. If that isn’t possible then the next best alternative will be advised. We also carry out all small or major house renovation projects, fire damage, flood damage and from start to finish projects. Call our team today to book a free survey - or for free help and advice contact our experienced staff.
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
Great team. Fast and efficient. Great job done in what was not the best weather. They powered through and were a great help solving my roofing issues. Would highly recommend.
Pure Construction Group LTD
External Wall Insulation
Established in 2021, Pure Construction Group Limited has rapidly built a reputation as a trusted multi-trade building contractor, serving the commercial, social, and domestic markets across Northwest England. With over 30 years of combined commercial and subcontract experience, our team has driven the steady growth of our business. We pride ourselves on being large enough to handle significant projects but small enough to provide personalised attention and exceptional service to every client. At Pure Construction Group, we offer a comprehensive range of services to meet diverse needs. Our offerings include everything from strip outs and kitchen & bathroom replacements to internal and external redecoration. We also specialise in disabled adaptations, retrofit work, structural repairs, groundworks, extensions & alterations, minor building works, roofing (both pitched and flat), damp proofing, and cleaning. Our broad service scope reflects our commitment to delivering high-quality solutions tailored to each project’s requirements.
J.K.ModernBuild
External Wall Insulation
Hi, my name is Jamie. my company is J.K.ModernBuild, I have many years of experience in the building trade and can offer advice on the job you need to be undertaken. we undertake many trades and furnish to a very high standard and professionalism -extensions -groundwork -landscaping -plastering & rendering -bathroom & kitchen fittings -soffits, fascias & guttering we take pride in our name and work, contact me and I would be happy to help and answer any questions you may have.
A1 Dampproofing
External Wall Insulation
I provide a first-class, value-for-money service to give my customers a professional service - one that meets their requirements and needs. All costs clearly itemized in an individually tailored survey report. As a smaller company, our overheads are less than most, and this is reflected in our pricing structure. Specialists in the following work: DAMP PROOFING CONDENSATION CONTROL DRY ROT / WET ROT CAVITY WALL TIES PLASTERING ALL WORK IS FULLY GUARANTEED
Concept Claim Solutions - Hertfordshire & Chelmsford & Cambridge
External Wall Insulation
We are a repairs and renovation specialist who specialise in bathroom kitchen replacement and entire house decoration.. We also specialise in insurance claims for water escape or fire damage to your bathroom, kitchen or roof. We will deal with the insurance company on your behalf and take the stress out of making an insurance claim. We are are a very experienced team of professional consultants who are available to help you with your repairs
Zsolt Tihamer Budi
External Wall Insulation
Im doing taper and jointer painting and decorating demolition and many other staff. I provide professional tools car for travel and seriozity. I have my son who is verry hard worker and if requires i can bring more guys.i have 25 year experience in construction i ask and i give seriozity.
16 years experience in the rendering and plastering trade
Did a brilliant job on side of house, working in terrible weather, would recommend.
At NEWBUILD, we are a family-based construction company located in the heart of Cambridgeshire. With a passion for quality craftsmanship and attention to detail, we specialize in a range of services including extensions, loft conversions, and renovations. Our team of experienced professionals is dedicated to bringing your vision to life, whether you're looking to expand your living space with a stylish extension, create a functional and beautiful loft conversion, or transform your existing property into your dream home through meticulous renovations. With a focus on customer satisfaction and a commitment to delivering projects on time and within budget, we strive to make the construction process smooth and stress-free for our clients. From concept to completion, we work closely with you every step of the way to ensure that your project meets your expectations and exceeds your dreams. Choose NEWBUILD for your construction needs and let us turn your dreams into reality.
Would highly recommend Joey. Very reliable and good standard of work.
Hawk Building & Landscaping
External Wall Insulation
We have 7 years experience in the construction & landscaping trade. From single story extensions, to building walls, flagging & fencing are just some of the services we offer. We always strive to achieve the highest level of customer satisfaction.
JME Plastering
External Wall Insulation
Over a decade of experience in the plastering trade, Our reputation has been built on trust and reliability aswell as our fair prices. we offer all aspects of solid plastering such as internal & external Lime plastering, skimming, floating, dry lining, Traditional sand & cement rendering, pebbledashing, screeding, K-Rend.
Family business with over 30 years experience in home extensions and loft conversions, bathrooms, resin bound driveways and many more . All works are carried out by our professional team from start to finish. We undertake all aspects of extensions in the Kent and London area. No
I'm very pleased with the work the guys did. They were friendly, tidy and considerate. I definitely would use them again, good job guys :-)
General building and printing mural photos on walls.
Cheerful, skilled and reasonable - luckily for me he quoted and carried out both jobs straight away and was soon finished to a great standard. I'm very happy with the work and will definitely be using his services again.
Hi welcome to my company, I've been in the building trade for 15 years with vast experience in the building and tree surgery/landscaping industry, all my work is always carried out to the highest of standards to over exceed customer expectations
Bellhurst Construction gave me a very detailed quote and were able to start the job promptly. Darrel worked with me on adjusting he quote in order to prioritise the things that needed the most attention. We were held up a few days by the weather initially, but once things were underway I was very happy with how things progressed. The team were polite and worked hard through some of the hottest days of the year! The end result is wonderful and really makes the most of the garden.
Welcome to LMG Home Improvements. We are a family run business who insulate and render homes. Working with leading manufacturers, we look to bring you the very best products to improve the warmth, look and value of your home.
Completed external wall insulation. Did a good job. Had extra works done. There work is very good but 4 stars due to resource issues trying to complete the jobs. Would use them again.
M & S INTERIORS
External Wall Insulation
M&S Interiors undertakes any job in the field of building. From installing a cat flap or hanging paintings on the wall to redesigning bathrooms and living rooms to repurposing uninhabited basements or garages. With a combined staff experience of over 40 years we focus on providing a fabulous experience to all our customers. We emphasise attention to details, high quality finish, cleanliness and 100% customer satisfaction. Please feel free to get in touch to discuss your requirements or ask any questions you may have! M&S Interiors team
Nice guy but let me down terribly. I needed 3 rooms to have new ceilings. A messy job and taking the old ones down was fine, but they ran out of time, failed to complete the job leaving gaps in the plaster on the walls and failed to skim the plaster board on the ceilings. Shocking result- they were too concerned about the large job they had and left my rooms in a shocking state.
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