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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.
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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.
MST Solutions Ltd is a hardworking, family-owned home improvements and construction company dedicated to delivering high-quality workmanship and reliable service. With a strong focus on customer satisfaction, attention to detail, and honest, professional service, we take pride in helping homeowners improve and enhance their properties to the highest standards.
PPS
External Wall Insulation
Steven Rose, the founder and owner of PPS, brings a wealth of expertise to the construction industry with a background as a qualified Electrician and Plumbing and Heating Engineer. Holding a Master's degree in construction project management, a Level 6 diploma in applied health and safety, and a Level 5 in Leadership and Management, Steven is committed to delivering comprehensive turnkey design and build construction solutions. PPS specialise in New buildings, Extensions, Loft Conversions, Renovations, Bathrooms, Kitchens, Landscaping, Electrical, Plumbing and Heating. Steven is a distinguished member of industry-related affiliations, including MAPM (Member of the Association for Project Management), CertIOSH (Certified Member of the Institution of Occupational Safety and Health), and FCIOB (Fellow of the Chartered Institute of Building). At PPS, our core values, are encapsulated by the acronym SERVE (Service, Excellence, Relationships, Value, and Expertise), which underlines our commitment to providing quality building services. We specialise in various aspects of the construction process, offering services such as Architectural Design, Planning Applications, Building Control, Project Delivery, and Handover and sign-off Documentation. Our approach is designed to alleviate the burden on our clients by seamlessly managing the entire project lifecycle. PPS engages vetted construction professionals to deliver quality design solutions aligned with client requirements. From securing planning permissions to adhering to CDM regulations, completing F10 notifications, and conducting safety audits, we ensure that health and safety standards are met throughout the project. We streamline the process by obtaining costs from our trusted supply partners, organising and managing the program of works, and ensuring the timely ordering of long lead material items to minimise delays. Our commitment to transparency includes producing written progress reports, keeping clients informed about project advancements, and promptly addressing any identified issues to ensure project targets are achieved. Additionally, PPS facilitates visits from Building Control Officers, oversees the issuance and registration of electrical and gas certifications, and manages resource allocation. With a customer-centric focus, we aim to create a stress-free experience for our clients, ensuring that every project is executed with precision and meets the highest standards of quality and compliance.
We are a family run construction company with over 20 years in the trade. We offer all aspects of building, extensions, kitchens, bathrooms, plastering and conversions
Job completed on time
Vintage plasterers offer solutions for all aspects of lime work, Whether it be traditional, restoration or modern projects. By working closely with the client from start to finish and using over 40 years experience combined,
Mark was great.. Communicative, reliable, and eager to do the job exactly how I wanted it. Would definitely use him again.
I am an experienced builder of 35 years only taking on smaller projects mainly carpentry but other aspects of building may be considered.
Since last request to rate dag ltd. We have learnt that due to an e mail hicup our quote was lost.When the problem was realised I have been more than satisfied with their prompt correspondence
We are a small plastering business and have been plastering for over 20 years. We offer an affordable, professional, neat and tidy service. We are very approachable and willing to help! Kind Regards Tom TRP
Very happy with the work carried out, extremely professional, when some alterations needed to be done all was explained and the finish was brilliant. Also very neat and tidy which I always appreciate.
LONDON PAINTERS & PLASTERERS LTD
External Wall Insulation
London Painters & Plasterers Ltd focuses on providing a high quality decorating service to all of our customers in London areas. We ensure that all of our painters and decorators are qualified in their particular discipline. To accommodate the needs of our customers, we can work evenings, nights and week-ends as well as a normal schedule. We understand how important it is for you and your family to return to a clean, dust-free environment.
Sean was quick and efficient and did what was asked in less time than quoted.
A family business that delivers great customer service. We have a reliable team who all take pride in the work we carry out in your home ensuring that we leave you completely satisfied and as proud of our work as we are. All our work is executed to high standard. So, no matter what job needs doing big or small, I will be happy to provide a very competitive quotation free of charge. fully insured. The work that we undertake: Painting and decorating Refurbishment Tiling Plastering and rendering Carpentry Loft conversion Extension General builders And many more We are looking forward to hearing from you.
Absolutely fantastic service. We had cracks in our two main bedrooms, hallways and living room that needed repairing whilst we were living in the house with a baby and small child. Tilly got three men on the job to get it all completed asap. The team worked flat out without breaks and got done in 2.5 days (Tilly quoted aprox 3 days). They did over and above what I’d asked them to painting areas they hadn’t even replastered to make the hose look fresh. Tilly quoted & charged very reasonably too.
Hi. I'm Marcin I've been in construction industries for over 20 years. I'm offering a range of services like: New Build, Roofing, Extension, Loft conversion, Carpentry, Fencing, Flooring, Drylining, Tiling, Painting and Decoraiting. Starting from building foundation to the very top of your roof. We can take care of the outside as well as the inside of your home. Just let us know what do you need. You can find us on Fb "THOR UK CONSTRUCTION"
I can highly recommend Thor. Marcin has completed my loft conversion to a very high standard. His tradesmen have all been polite, careful, tidy and competent. I used the architect and structural engineer Marcin recommended and was pleased with their results. He had a company calculate the cost of the project so there has been no ambiguity about costs from the outset. The job has been completed to a high standard and I am thrilled with the result of his work! Am happy to recommend.
We offer a friendly, and professional service, offering all types of joinery work, plastering repairs and new plastering along with small building works. I am a qualified damp proofing and fungal decay surveyor, we can carry out damp proofing and timber decay repairs and treatments.
Nice guy, excellent service.
Welcome to Versatile Exterior Renovations were we have over 20 years experience in our trades, We are offering our customers a multitude of services from interior/exterior rendering,skimming,roughcasting/pebbledashing,interior/exterior painting, all types of roofing work,ridge re-pointing & cement work,dry ridge system and more. For quality workmanship and superior results get in contact for more information.
Great job completed quickly friendly, will use again without a doubt for any needs to do with roofing, gutters high recommended.
Zenit LTD. With over 20 years experience in decorating,plastering,carpentry and building works and restoration of old and new buildings. Experienced and well trained tradesmen. We provide high-end work that is unique to customer requirements. Professional, responsible, very accurate and organised team. We do high quality, all tips of carpentry and joinery and a lot more. Finishing NVQ 2 ,Carpentry and Joinery ProQual NVQ 2 Diploma, all operatives are fully CSCS Qualified and have carpentry work experience.
Denis did an excellent job on the wall which required repair. His communication was excellent and he kept me well informed of his availability and time when he could carry out the work.
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Over 30 years experience in all joinery, paintings and building.
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.
JK CONTRACTORS
External Wall Insulation
Our company is a well-established building and contracting firm with years of experience in the industry. As a qualified electrician and builder, we offer a wide range of services to meet the needs of clients. With our expertise and in building contracting work, we specialize in various areas such as brickwork, block work, extensions, plastering, electrics, plumbing, carpentry, and joinery. This comprehensive range of services allows us to handle every aspect of a construction project, ensuring a seamless and efficient process from start to finish. Our years of experience in the field have equipped is with the knowledge and skills necessary to deliver high-quality workmanship. We have a deep understanding of construction techniques and industry standards, ensuring that every project is completed to the highest standards of quality and safety. In addition to our practical experience, we have also invested in education and training to stay up-to-date with the latest advancements in the industry. This commitment to continuous learning allows us to incorporate the latest techniques and technologies into your work, ensuring that our clients receive the most innovative and efficient solutions. Overall, our company's combination of experience, specialties, education, and training positions us as a reliable and skilled provider of building and contracting services. Whether it's a small renovation or a large-scale construction project, clients can trust your expertise to deliver exceptional results.
Hello and welcome to Complete Plastering and Decorating Services. With over 20 years of experience. We pride ourselves on the quality of the finished product. Our aim is also taking the stress out of the job for you the customer. We take on all plastering and decorating work. No job to big or small. Customer service is a must and we can guarantee the quality of the work and finish.
John and Tyler wallpapered and painted our lounge. Very professional and knowledgeable. We are extremely pleased with the work carried out.
J S MULTIWORK LIMITED
External Wall Insulation
we are a construction and landscape company located in north London with over 10 years of experience in construction and gardening, and if you choose us, we will not disappoint you, thank you
Excellent work completed by Pin construction, communication was excellent throughout the paving and pergola work carried out. I have a wonderful garden thanks to Emile and his team. Everything was completed to a very high standard. Would highly recommend Pun Construction.
JDL BUILDERS is a small local business that offers the highest standards of work at a fraction of the cost of all these big company's. we are proud that are customers can read this profile and see what we as a company stand for. CORE VALUES 1) RELIABILITY. you can always rely on JDL to meet target dates or do everything in are power to make sure we take any of ur stress away. 2)CONSISTENCY. Is key having a high standard of work.. an old man once told me ur only as good as ur last job. Employ the best and don't have the job done twice. 3) PASSION. JDL has a real passion to be the best in what we deliver. And hopefully all are reviews reflect this. and most of all HONESTY. JDL will always be totally honest with you..
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