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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

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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?

JJ Walker property development. All trade contractors

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Reviewed by Keith on 5/8/2024

Everything done superbly well due to the efforts of Taylor. Kept us advised at all stages of the job. Would recommend unreservedly.

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

We are a friendly family run business of 3 generation's We offer a complete building service with all of our trades men in house. we have completed some major restorations such as Vermont hotel 108 bathrooms county hotel full conversion many extensions and house builds also maintenance for landlords and home owners give us a try and hope to see you soon.

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Reviewed by Judith on 28/3/2025

Our company was established in UK 9 years ago,Before that we have worked in Portugal,France.We are experienced in refurbishment work,all carpenter work,bathroom fitting,all kinds of external insulation and rendering finishes.We are all certificated.Our work is supported with references. We will do our best to satisfy everyone with the quality of the work we can offer.

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Reviewed by N on 15/9/2024

I recently had my house re-rendered by this company. I met with Slavi to discuss my requirements and he made sensible suggestions which I’m really pleased I took on board. I received a detailed and competitive quote listing everything we had discussed. Slavi and his team arrived on time, they worked hard and made good progress each day. The area was always left clean and tidy. The work, as promised, was of a very high standard and I would have no hesitation in recommending Slavi and his team.

hello I have 15 year in the trade I am a multi skilled tradesmen who takes pride in what I do I love my job I work on a basis you not happy with my work you don't pay simple as that I am fully insured and vetted

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Reviewed by phillip on 27/3/2025

Top class service really friendly people ..love our flooring thank you very much we will use again.

NORTH WEST LONDON RENOVATIONS is a well established, trustworthy, reliable and professional company. We serve Acton, Ealing, Hammersmith, Kilburn, Paddington, Brent, Westminster, Hampstead, West Hampstead, Primrose Hill and all surrounding areas of N, NW and Greater London. Our service is professional, caring, and high quality. Our customers rate us highly for our ability to stick to deadlines, and for the quality of our workmanship. We provide a professional service from the initial free quotation to the end professional finish. Our service is friendly, clean and tidy, and reliable. We consider no job as too large or too small and offer very competitive prices

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Reviewed by Nicholas on 2/2/2024

Had scaffolding up very quickly. Started job on time and finished in a week. Very impressive. Good communications and reasonable price.

We are a hard working team with great experiance

E SAINT GEORGE Ltd is a London & Essex based construction company. We specialise in all aspects of Home Improvements and strive to provide excellent work in order to achieve each individual clients vision. Our Customer Focused Service, ensures that we Communicate-Resolve-Produce superb tailor made projects. E SAINT GEORGE Ltd has an outstanding track record for delivering projects on Time and on Budget. All of our surveys are thoroughly analysed and concisely priced. Our pledge is to deliver all clients with Flat-Rate Costs for all of our contracted services. At E SAINT GEORGE Ltd, we value our highly-skilled team members as the core ingredient to completing every project successfully. HOME IMPROVEMENT SERVICES: - Kitchen Installations - Bathroom Renovations - Flooring (Laminate/Wood) - Tiling - Painting & Decorating - Structural Engineering & Design Services BUILDING WORK SERVICES: - Loft & Basement Conversions - Extensions (Single/Double) - Rendering / Plastering - Patio & Driveway Installations - Gardening & Landscaping - Gas Safe Services - Electrical Services (NICEIC) - Handy Man Services

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Reviewed by neil on 26/7/2024

Endrit and his team were wonderful to work with - friendly and professional and nothing was too much trouble for them, despite me changing aspects of the kitchen renovation and install during the process. They went above and beyond to ensure that everything was perfect and that I was happy with all aspects. My new kitchen looks amazing and I can't recommend Endrit and his team highly enough - I have already recommended E Saint George to friends and will be getting them back to install my bathroom.

With years of experience in the plastering industry, we offer a professional, reliable and high quality service for all your plastering and finishing needs. We specialise in both internal and external work, ensuring that each project is completed with precision and attention to detail. Our team is fully qualified and constantly updated on the latest techniques, ensuring results that meet and exceed customer expectations. We are committed to providing excellent customer service, on time and on budget. By choosing us, you are choosing expertise, quality and reliability

We offer 24/7 solutions to all your property maintenance needs, whether it’s a small task such as assembling a desk or a seemingly daunting full house refurbishment. It is our extensive experience within the industry, combined with passion, innovation and dedication that makes our clients choose us for all maintenance or building services required. Our professional staff will guide you from your first encounter with us all the way to billing and subsequent repairs and we guarantee that you will look nowhere else for assistance!

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Reviewed by Francis on 8/4/2025

It was great to have Kh&n for my job because he shows so much professionalism and able to do the job wholeheartedly. He is kind as well and I’m happy to hire him for more jobs infuture or recommend him to my friends.

At Everstrong Driveways Ltd, we pride ourselves on turning your ideal driveway visions into tangible reality. With a steadfast dedication to quality and a fervent enthusiasm for paving, we offer unrivalled expertise in each project we undertake. Whether you seek to elevate your property’s visual charm or fortify your outdoor areas, our devoted team stands ready to provide superior driveway solutions. SOMERSET & SURROUNDING AREAS

A family run local business trading in North wales for over 20 years.We undertake all aspects of home improvements from a simple tap swap to full house refurbishments. Customer satisfaction is our number one goal!

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Reviewed by Adam on 9/8/2024

Didn't clear the weeds and bramble from behind the side gate other than that they did what I ask them to do

General builders and energy saving specialists since 1994

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Reviewed by Pauline on 20/11/2023

Came out as arranged and said would give a quote for several jobs required including the damp repair .he said he would send quotes over on the friday 3rd november and am still waiting.

professional, trustworthy company clean and friendly, with over 18 years experience. We are a family run company with skills that have been passed on through generations. Every job is finished to an amazing standard at a very reasonable price.

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Reviewed by Lisa on 1/4/2025

Patrick was professional, friendly and thorough. Really pleased with the repairs and finish to my chimney that required attention. Wouldn’t hesitate to recommend to anyone, very trustworthy.

We are fully compliant with BS7671 & are guided by IET regulations to ensure we deliver the most accurate & up-to-date information possible. We follow all electrical safety regulations. Outstanding knowledge of commercial & residential installations.

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Reviewed by Ola on 4/6/2024

Professional from start to finish. Polite and did a wonderful work. Can’t fault them at all

Hello there! My name is Lucas and I’m a multi-trader. Trained as a painter and decorator in 2011, I have since developed my practice to also include plastering, carpentry and joinery, as well as cabinet making. I am part of a collective of trades people called Plaster and Paint (links to works below), a group of independent builders that applies itself in everything concerning home improvement and kitchen and bathroom refurbishment. I also regularly do work for Art&Assembly LTD (links to works below), an art fabrication company that specialises in making sculptural artwork, bespoke cabinetry and furniture, and high end shops and restaurants. With over 8 years experience and City and Guilds certification in various trades, I strive for high quality work that lasts. Efficient, tidy and flexible when it comes to work schedules, I am always happy to discuss anything necessary to make whatever works undertaken as stress free as possible for everyone. I believe in the importance of living in a nice environment and the impact it has on our daily lives. This is why I take pride in the work I do and why I seek to share it with others. Plaster and Paint - Instagram: @plasterand.paint - web: plasterandpaint Art&Assembly LTD: - Instagram: @artandassembly - web: artandassemblystudio

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Reviewed by Daniel on 20/11/2023

Lucas did a fantastic job of sanding, fixing and varnishing our wooden floor in our small back bedroom. He was very professional and friendly and even helped with trying to fix a leak in a water pipe below the floorboard . Kept in constant contact with us too. Very trustworthy. Highly recommended!

London Development uk ltd is our company, we have been trading for over 12 years in the construction business. - We are a fully insured company with a big portfolio of jobs completed and we are friendly and reliable on any work and business that is coming across. - We can do big jobs as new buildings or full refurbishments, basements, extensions, lofts conversions etc and also we can do small jobs as bathroom refurbishments or even smaller is always space and time for a new job. - We guarantee you that you will get the best workmanship on your job with best skills and acknowledge in the construction industry, time effective and costly effective for customers. Try our company and you will gain the benefits!!!

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Reviewed by Rita on 25/12/2023

Peter contacted me and was amazing, professional with his quote and recommendation. Very clean, tidy service and very open and honest. Peter and his team are excellent builders.

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Reviewed by Bob on 23/11/2024

Not successful on this occasion

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.

Robertson Plastering has over 22 years of experience and takes pride in offering high quality advice and services in Darlington, and throughout the North East and North Yorkshire. Our services include: - Full Re-Skim - Dry Lining (Boarding) - Damp Proofing (Approved Contractor - 20 year guarantee provided) - Rendering (Sand Cement and Specialised in Coloured Render 10 year guarantee provided) - New Extensions All employees are fully qualified and time served tradesmen. Robertson Plastering are fully insured.

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Reviewed by Chris on 28/8/2019

Very good quality of work, nice guys and good communication.

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