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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.
Ross Drylining
External Wall Insulation
Partitioning , suspended ceilings, dry lining and anything to do with plasterboard and metal stud /metal frame ceilings components such as curved ceilings , circular bulkheads and shelving around fire places and much more fancy decorative staff to make your hone look modern.
Tamlin Beadle
External Wall Insulation
At tams Painters, we specialise in domestic, commercial and industrial painting and decorating Dry lining and tape and jointing for over 20 years We aim to provide a superb service that you can rely on and to complete all projects to the highest quality possible. Satisfying customers is our priority and you can be sure that we pay attention to the details, keep a clean and tidy workspace from start to finish and above all have a genuine dedication to your project.
I am Grigore Marian Morar, I am serious when it comes to a task or a job and at the same time to be on time.I mostly like to paint and i am really cautious of every little detail and the same with joinery, tiling and everything links to house maintanance. If you need help from a serious, skillful and perfectionist, call me!
Grigore was very good with the task at hand. He was punctual and reliable.i have discuss other jobs with him.
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Hello my name is lee, director of LJ carpentry and construction, I have 30 years experience in the building trade, have a established team that work for me and do every thing involved with construction, from full house builds to small extension, and loft conversion down to small carpentry works also landscape gardening roofing and bricklaying. all aspects of building work taken on
Mike transformed our dark and dingy garage into a fabulous annexe to our home. The job was not easy but nothing seemed to faze him. He was more than willing to go the extra mile and was happy as long as we were too. Highly recommended and a really nice chap.
At JLF brickwork, we have over 15 years experience in general building work. We thrieve off customer satisfaction and provide a professional high standard of work. We go above and beyond to make customers' visions become a reality. We specialise in any construction needs internally and externally. No job is too big or too small.
Great job thanks.
THOMAS GEORGE JOHNSON LTD
External Wall Insulation
Thomas George Johnson Ltd is a family-owned business servicing the construction industry. Whether you are looking for residential or commercial then we are here to help. We specialise in space fit-outs including offices or house extensions, get in touch with us today for a wide range of construction solutions. Thomas George Johnson Ltd continues the tradition of providing new and existing clients with excellent service, great quality of work, and schedules that exceed the requirements of Client's expectations. TGJ Ltd specialises in new projects within the construction sector, including refurbishment of existing facilities, retail, residential extensions, garage conversions, maintenance, repairs, installation, electrical & plumbing, painting interior and exterior, dry lining, plaster boarding, tarmacadam driveways, road markings, remodelling, kitchen, bath, carpentry, tiling, flooring, brickwork, fencing and landscaping. We can offer very competitive rates with the highest commitment to quality and services throughout. No matter the size, complexity, or location of your next project Thomas George Johnson can provide you with personalised service, reliability, and quality building. Thomas George Johnson Ltd looks forward to being part of your next project. Let us help you generate this year's budgets and engineer your estimates. Contact details can be found at the bottom of the page. Our Vision is to be the First Choice of Builder For all Our Customers We guarantee you'll be extremely satisfied with the result.
We are a family business with over 30 years experience in the building trade we cover all aspects of building but our primary work is plastering and rendering, our team of skilled workers all adhere to the same standards and work ethic with a high attention to detail and fair job. Don’t hesitate to get in contact for any advice or help with ongoing/future projects
Jay did a fantastic job. Bedroom completely stripped, insulated and redecorated to perfection. Highly recommend!
My name is Josh, proprietor of JJ Home Improvements JJ has bean tradeing for over 20 years with a team of 6 people with many years experience. We also have a demolition team of 4 people who are fully trained in this sector. We pride ourselves on giving our customers 100% and offer competitive quotes. We also have a waist carriage licence and many machines tickets
RMT DESIGN AND BUILD LTD
External Wall Insulation
RMT DESIGN AND BUILD LTD
External wall insulation and rendering specialists with 6 years experience providing a modern finish and improving the look to your home.we've been working all over the years improving the external walls whith external wall insulation(eps or rockwool) which helped a lot of people saving money on their energy bills
Fast, friendly and reasonably priced professionals Did an excellent job of rendering an outside wall with a super new technique. Very very happy thanks again Costel
With over 40 years combined experience in the building trade our company has grown and build an amazing portfolio of jobs and customer clientele. We cover all aspects of building and landscaping no job is to small and no job is to big we can handle them all. Our company cover everything from start to finish on all jobs so no need to worry about sorting anything, making it a smooth process for our customers
Very pleased with the outcome of a small extenrion to extend the diner and add a showeroom and utility area. Work was carried out professionally and finished to a high standard . Would recomend this company.
Fast, friendly, and fully accredited, our professional Building Services are well renowned throughout the Buckinghamshire area. Our team is up for every job, managing contracts from inital architects drawings and liaising with building control, from foundations to roof and right up to final sign off, we have built our business on impeccable customer service, excellent work standards and a Christian ethos. We always stand behind our work, with customer satisfaction being our #1 priority. Contact us to learn more about what we do and how we can help you!
I can't comment on the any work carried out but we had him booked in to attend, he did not turn up on the day and when I messaged him I had no reply, not very happy as I took time out of work.
My name it’s Cris. I am a person with many qualities in handyman.What a handyman means? A handyman, also known as a handyperson or handyworker, is a person skilled at a wide range of repairs, typically around the home. These tasks include trade skills, repair work, maintenance work, are both interior and exterior, and are sometimes described as "side work", "odd jobs" or "fix-up tasks". For me a handyman means the person who helps the people who are in need or not having the necessary training for that thing and at the same time the one who later gives a smile to the people's face. For this, please contact me in any need you have
Christian and his team were friendly, courteous, and did a great job at the quoted price with no surprises.
For over three decades, Purpose built Construction has been a trusted, family-run business dedicated to turning customer ideas into reality, consistently delivering within budget and on schedule. Whether you envision an extension or require maintenance, our comprehensive expertise in the construction industry ensures all aspects of your project are covered. Comprising a skilled team of 12 professionals, each member brings a wealth of expertise and dedication to every project. Our Services: Extensions: From single-storey to multi-storey extensions, our experienced team of builders skillfully executes diverse projects tailored to meet your specific requirements. Maintenance: Trust us for meticulous maintenance services designed to keep your property in prime condition. Our Approach: At Purpose built Construction, we firmly believe in the strength of our team. Our highly knowledgeable tradespeople are passionate about transforming customer ideas and dreams into tangible results. They are supported by our design and structural engineering partners, enabling us to confidently undertake projects of any size. Why Choose Us? 1. Pride in Craftsmanship: We take immense pride in our work, ensuring attention to detail in every job we undertake. 2. Driven Workforce: Our team is motivated and committed to delivering excellence, ensuring your project's success. 3. Customer Satisfaction: Your happiness is our priority; we strive to exceed your expectations at every stage of the project. 4. Certified for Security: We prioritize safety and security, ensuring that our work meets certified standards.
Quick to respond to job request, all work done efficiently and professionally. Have already requested millington construction projects Ltd to return and do another flat roof
Mario Builders
External Wall Insulation
Hi ???? Mario Builder is very professional Painter and Decorating House Experienced 14 Year Please contact me for more information about the Painting and Decorating Your House
M&M CONSTRUCTION (LONDON) LTD are an professional construction and refurbishment company with 25 years of experience in construction industry . We are building contractor specialising in solutions for your home restoration, kitchen and bathroom refurbishment, extensions, loft conversion and internal remodeling. We are working around North West and Central London. We have 25 years of experience on London's construction industry. We offer professional services: Bathrooms from A to Z Kitchens from A to Z Plumbing work Electrical work Painting and decorating Wallpaper Carpentry work Tiling Cleaning service Construction work Loft roofs of any kind Wood floors Extensions Fencing & Gates Paving & Slabs Book an appointment at a time to suit you and we will look at your refurbishment requirement and provide a free no obligation quotation
Working in a team when needed am providing and Making Sure that everything is right and the priority of my Job is to make my client Happy.
One star as that was the lowest I could choose. Threatened to have us fined as they claimed we accepted a quote they did not give. Left some of our waste on our neighbours property and claimed that we shortchanged them so demanded a further £20.00 Not to be trusted I'm afraid.
I have been established for 30 year offering excellent workmanship i am efficient courteous, and reliable. We all ways leave are jobs clean and tidy. Over the years I have trained 4 apprentices up to become really good plasterers and have one now on his last year .
Did an excellent job. They were very clean, efficient, polite and worked quickly. The price quoted was extremely competitive. I would highly recommend to anyone and I'll definitely be employing him again for more replastering work around the house
Www.kerrconstruction.co.uk Welcome to Kerr Construction. A company with a full range of experience to ensure all projects are completed with the best quality. We cover a wide range of projects with a capable team. Ensuring the best possible outcome on all projects for the client.
Feel Free to CALL MY DIRECT DIAL NUMBER above. as I am always happy to chat. PLEASE NOTE: We only specialize in external wall coatings, rendering and/or repairs. We Don't carry out internal painting or plastering. We are a national family run business offering a local service with over 40 years' experience in all types of exterior renovations repair, render, silicone, acrylic and more. We can offer virtual quotes initially and all works come with a 15 year backed guarantee which many local tradesmen cannot offer. At The Wall Doctor, we aim to cure all the concerns you may have regarding the exterior of your property. We understand the damage British weather places on your exterior walls. and we have the cure for you,! We will always give you a virtual quote first and send you a detailed video report and proposal in the first instance. If your home requires an appointment with one of our Wall Doctor surveyors, feel free to make an appointment with us to receive a no obligation diagnosis. After treating countless homes, we are exceptionally experienced within our field of Wall coatings and renders. we can cure any issue that concerns you. The services we offer ensure your home is protected during the harsh British winters and wet weather and will always look at its best. We offer a range of products and prices available to all scenarios, so don’t miss out on our no obligation diagnosis and various other services. We are not the only Wall coating company in the UK, however we strive and succeed to be one of the best for customer interaction and satisfaction to any work performed on your property.
Wall Doctor have now sent a very professional external coatings applicator and he has repaired the paintwork to our satisfaction. This has taken some time to resolve (Partly due to weather constraints) but we are now confident that the job has been done properly.
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