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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.
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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.
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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.
Established in 2014, LMD Building Ltd is an approved electrical & building contractor with over 20+ years, combined, of experience in the electrical industry. We provide a variety of electrical and building services to domestic, commercial and industrial clients throughout Nottinghamshire and surrounding areas. We are renown for being affordable, reliable and professional.
Quick and polite
RELM Interiors is an established and highly recommended renovation company based in Wimbledon, specialising in full home or office refurbishments, including loft conversions and extensions. We are dedicated to providing an efficient, personable and high quality service to transform your home. RELM Interiors has shown its ability to complete expert renovations to exceptionally high standards across London. We have a team of highly skilled and reliable tradesmen who pride themselves on their dedication and attention to detail when transforming your space into something beautiful for you to enjoy. Our portfolio of work ranges from domestic kitchen, bathroom, bedroom renovations to large scale office refurbishments, loft conversions and extensions, all the way through to one-off bespoke furnishings. We offer the full service so you can relax knowing your home is in good hands from the initial planning process through to the day the keys are handed over to your new beautifully constructed home. Our number one priority is your satisfaction, assuring you of our utmost commitment and careful approach to every project (big or small) so that you can rely on excellent quality and craftsmanship. Design is also an integral part of our process; any assistance you require in terms of kitchen/bathroom design or decision making on any interior decoration, then we can be with you at every step of the way.
Relm were fantastic. I have done a lot of renovations over the years but our regular builders weren’t available and we had to get the job done on short notice. Relm were professional, helpful and most notably stayed on time and on budget. I wasn’t able to be onsite and they kept me up to date with photos and videos. They left the building site clean and tidy and I am delighted with the quality of the workmanship. I wouldn’t hesitate to use them again or recommend them to friends.
Elements Plastering Solutions LTD
External Wall Insulation
We’re a family-run plastering business with over 15 years of experience. We pride ourselves on quality workmanship, reliability and a friendly, professional service. Whether it’s a small repair or a full project, we take care in every job and always aim to leave our customers 100% satisfied with a high-quality finish.
Here at Crown property renovations we have one priorty ,To make our customers happy and give them everything they have ever wanted in there home . We are a friendly helpfull team who get pleasure in making the customer happy , We offer a free no obligation visit to your home what ever the request and give youfree advise and quotations,gives us a call today and make your home the home you always wanted , we will look forward to speaking yo you .
The work done on our home was excellent however we are now waiting for the guarantee of work certificate as promised and after 4 attempts to obtain this my messages are not being answered. This is a shame as the work was good. If you are thinking of selling your home and need the certificate as we now do I would not recommend.
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here at miracle paint we offer excellent service to our customers we cover most aspects of painting flooring/tiles ceiling repair plastering garden work mold remediation wallpaper removal./ rendering we will work with you to achieve a perfect finish to your home
Miracle were great, arrived when they said, kept me informed about what they were doing and did a great job.
Eduard Cristian
External Wall Insulation
Please email me! Thanks
Bock Renovations
External Wall Insulation
With over 15 years of experience in the construction industry, we provide reliable, high-quality workmanship across a wide range of services. Our expertise includes plastering, roofing, and building, delivering professional results for both residential and commercial clients. We pride ourselves on offering a friendly, dependable service and are committed to completing every project to the highest standard. Whether it’s a small repair, routine maintenance, or a large-scale construction project, no job is too big or too small for our experienced team. Customer satisfaction is at the heart of everything we do, and we work closely with our clients to ensure every project is completed on time, within budget, and to their exact requirements. Strength you can build on.
We cover all aspects of plastering/rendering from repair jobs to full reskims. Dry wall installation, flat and skim as well as coloured render when we use our machine! We also do thin coat Renee and traditional sand and cement render
BSW construction are qualified stonemasons based in Kent. We have experience in conservation and restoration of listed buildings and monuments. We have also undertaken new builds providing services for jobs on the exterior and interior. BSW construction have expanded and provide the below services with a qualified and experienced team. Restoration Brick work Tinting Plastering Rendering
Great job Thanks very much
Hello, Thank you for visiting my profile, I am a qualified plumber and carpenter, I have study abroad in Canada were I did my commercial building course and have also obtained the following UK courses such as: - NVQ 2- Dry lining - NVQ 2- Heating and plumbing - NVQ 2- Health and safety diploma Over the years I have developed many other skills which allows me to start any project such from the beginning to end which includes: - Demolition, 1st fix, 2nd fix - Plumbing , electricity and heating. - Painting and decorating. I have worked in residential buildings, commercial and others. I am highly organized professional and responsible, with attention to detail; able to work under pressure, I have the ability to work on my own or as a team. As a profesional I like to fulfill clients expectations and bring ideas to life.
On budget and under time, thorough, clean, great finish and attention. Needed no micro-managing and clearly they knew what they do and do it VERY well with kindness. Some of the nicest people. I have ever worked with. 10/10
A family run property development and maintenance company. Specialising in floor fitting, general joinery - doors/skirting, bespoke exterior yard doors and gates, fencing & decking & much more. We have time served plumbers and electricians waiting to service your property. The customer experience is important to us, our integrity and reliability is built and maintained by the positive experiences of our customers, please take a minute to browse our reviews! The following points encompass the ethos of Hamel Homes LTD • Customer focused. • Advice is given to benefit the customer. • We only use quality materials locally sourced when possible. • Friendly & reliable from quotation to follow up visit. • Professional and safe. • Work carried out with the minimum fuss to customer, all excess material and waste removed when possible. • We enjoy our work - it makes a difference. Frank Cacciapuoti Company Director
Very satisfied with the work. would definitely hire again.
R&R Builders is a leader in providing value-added construction services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers.
R&R done an excellent work replaced the whole bathroom including the flooring. Very professional, punctual and gets the job done at a reasonable price. Highly recommend him to anyone who is looking for bathroom work. Thank you, Eden & Kristian
KJ Elite Construction Ltd is a professional, fully insured building company serving Blackpool, the Fylde Coast and surrounding North West areas. We carry out high-quality building and property improvement work for both domestic and commercial customers, from smaller repairs through to complete renovation projects. Our services include full property renovations, house extensions, structural alterations, groundworks, drainage, paving, patios, driveways, garden landscaping, fencing, joinery, plastering, K-Rend and external rendering, damp proofing, roofing, bathrooms, kitchens and flooring. We take pride in completing every project to a high standard, using quality materials and experienced tradesmen. Clear communication, reliable workmanship and attention to detail are important to us from the first quotation through to final completion. KJ Elite Construction Ltd is VAT registered, fully insured with £5 million public liability insurance and employers’ liability insurance, giving customers confidence that their property and project are in professional hands. We welcome projects of all sizes and provide clear, detailed quotations with no obligation. Contact us today to arrange a free quotation. KJ Elite Construction Ltd is a professional, fully insured building company serving Blackpool, the Fylde Coast and surrounding North West areas. We carry out high-quality building and property improvement work for both domestic and commercial customers, from smaller repairs through to complete renovation projects. Our services include full property renovations, house extensions, structural alterations, groundworks, drainage, paving, patios, driveways, garden landscaping, fencing, joinery, plastering, K-Rend and external rendering, damp proofing, roofing, bathrooms, kitchens and flooring. We take pride in completing every project to a high standard, using quality materials and experienced tradesmen. Clear communication, reliable workmanship and attention to detail are important to us from the first quotation through to final completion. KJ Elite Construction Ltd is VAT registered, fully insured with £5 million public liability insurance and employers’ liability insurance, giving customers confidence that their property and project are in professional hands. We welcome projects of all sizes and provide clear, detailed quotations with no obligation. Contact us today to arrange a free quotation.
All exterior works undertaken no job to big or small with over 20 years experience professional workmanship is our key making costomer’s happy is our goal. Find us on Facebook goggle my builder bark checkatrade rated people and much more fully Insured
Very satisfied with the work. Would recommend .
HSS CONSTRUCTION LTD
External Wall Insulation
HSS Construction Ltd A quality conscious established company providing the highest quality of workmanship and service to our esteemed customers throughout the West Midlands and surrounding areas Accredited to the highest standards available in the UK to include: FMB (Federation of Master Builders) Trust Mark Fair Trade HomePro SSIP ISO 9001 ISO 14001 ISO 45001 Health & Safety Quality Standard Undertaking residential and commercial works from roofing, extensions, loft conversions and new builds. Recently adding driveways and Venetian plastering to our services portfolio to provide our customers a one stop shop from a trusted quality company
I'm a multi-skilled builder, and I provide a range of services that transforms your home so it becomes a better and more comfortable home for you. I can remodel your kitchen or bathroom, install flooring, help with any paving or landscaping tasks, etc. I can also help out with any general handyman jobs like repairing doors, installing window blinds, hanging pictures, and more. I work with precision and go the extra mile to ensure customers are truly happy with my results. I know deadlines are important and so strive to complete every project on time while still maintaining high quality standards. I live in Milton Keynes, and I cover area radius 1hr from my base. For your peace of mind, I have public liability insurance, and comply with all safety regulations. If you need a reliable, friendly, and helpful builder, I would love to hear from you. Let’s chat about how I can help – please get in touch for a detailed discussion.
I would highly recommend Stan. He has done an amazing and fantastic job in fitting in a new kitchen for my parents. He was friendly and professional through out the work he carried out. He was very hard working and is a very reliable person. My parents love their new kitchen and I am really pleased with the high quality finish as well Stan’s kindness, professionalism and skills. Thank you so much Stan for completing the work to a very high standard. Greatly appreciated.
We are a company with experience in domestic installers we offer all type of general building services.You can be assured that your job is in the safe & professional hands! FREE estimates and call out of charge.Visit us on Facebook for more info: @2BROTHERSCCONSTRUCTION. Thank you!!!
We're so delighted that we went with TBC. TBC completed major works on our property - structural works, full electrics/re-wiring, plumbing, tiling, decorating, new flooring, new bathroom etc. etc. TBC were so professional throughout and had all the relevant knowledge with regards to certificates and approvals needed. They worked incredibly hard and to the highest quality. They have been readily available to come over and finish off the final snags. We look forward to working with TBC again for our loft!
Hampshire based friendly plumber, competitive prices and always here to help! Come check out my website for further information on Aquaflux services
We are a experienced family run business that was established in 1964. We leave all of our work at the highest of standards. We will also try to beat any other quotes that will be given. 5***** rating on Mybuilder ,100% positive feedback.
Great job, clear communication, quick to undertake the work to a high finish. Thanks
Daniel Braham Finishes
External Wall Insulation
New to rated people and as of yet have no reviews, so here is a brief cover of what my company provides, Commercial and Domestic plastering. I Also take on joinery works, loft conversions etc. Have a vast knowledge of both trades and complete all jobs to high standards and customer specification. I know a selection of people who work in other trades that could partake in larger projects also. Been in the trades since 2008 and built my knowledge & skills over years and started my business from scratch. I have the correct certifications for my trade as well as site health and safety certifications amongst a large list of others. I have DBS clearance and liability insurance. Plastering Services. Rendering. Damp proofing. Joinery. Loft Conversions + insulation. Suspended ceilings + partitions. Give me a call. No job too big or small. We take full pride in our work whether it be full rooms or even just holes that need patching we aim for 110% customer satisfaction. Give me a message or call for a free quote. Professional, clean and competitive rates. Quality workmanship is assured. Thanks for reading.
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