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Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!
Mary
George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!
Dmitry
Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.
Holly
Explore hundreds of cavity wall insulation specialists on Rated People, ready to improve the energy efficiency and comfort of your home or business. Whether you’re considering a new insulation installation to lower your heating bills or extracting old, damp insulation to protect your property, our platform helps you connect with professional local companies who can deliver top-quality workmanship. If you’re a cavity wall insulation specialist, discover how joining Rated People can help you connect with clients and grow your business.
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What can a cavity wall insulation specialist help with?
Avoid stress and costly damp repairs down the line by hiring a skilled cavity wall insulation specialist to help you out. Look out for insulation installers that:
- Are a skilled company with a strong history of high-quality energy efficiency installations.
- Have all the licenses and insurance needed to protect your property and their workers.
- Have a good range of positive reviews from previous customers vouching for their reliability.
- Are offering the exact insulation material you need, and are available to carry out the work in the timeframe you need it by.
- Are quoting a price and payment option that you are happy with, having compared the insulation quote with other local companies.
A local cavity wall insulation specialist is more likely to respond quickly as they’ll be right around the corner and ready to assess your home.
Post a job today to find a skilled insulation installer in your local area.
How much does it cost to hire an insulation company?
How much you end up spending on cavity wall insulation will depend entirely on the size of your home and the material you select. The most common insulation materials include budget-friendly mineral wool, expanded polystyrene (EPS) beads, and high-performance polyurethane foam. The overall size of your property, ease of access, and where you live in the UK will also have an impact on costs.
The average cost of a cavity wall installation typically ranges between £1,200 for a mid-terrace home and £3,000 to £5,000 for a large detached house.
For more accurate information on energy-saving budgets, read our cavity wall insulation cost guide, or post a job today to request a free quote from a local insulation specialist.
Factors to consider when choosing a cavity wall insulation specialist
A well-insulated home can entirely transform your living environment, turning it into a cosy, warm space while significantly reducing your winter heating bills. What's more, proper insulation eliminates the stress of rapid heat loss and can add an average of over £11,000 to your property's value by boosting its energy efficiency rating. Investing in cavity wall insulation can also lower your household's carbon footprint and make the property highly appealing to future, eco-conscious buyers.
A cavity wall insulation specialist can help you with:
- Conducting a pre-installation camera survey to check if your cavities are suitable and free of debris.
- Injecting high-quality materials (mineral wool, polystyrene beads, or foam) into the external walls.
- Extracting old, failed, or damp insulation that is causing internal condensation issues.
- Patching and drilling access holes with color-matched mortar to leave a virtually invisible finish.
Insulation specialists don’t just fill walls with foam. They carefully calculate your home’s ventilation needs to prevent dampness, check the structural integrity of your wall ties before starting, and ensure that airflow to existing brick vents or subfloor voids remains entirely unblocked.
Looking after your home's thermal barrier is incredibly important, as poorly installed or degraded insulation can trap moisture against your internal walls, leading to expensive structural damp and mold remediation. If your property is feeling drafty or costing a fortune to heat, an expert can get your insulation back into perfect shape.
Whether you want to install new energy-saving beads or need old, compromised insulation professionally extracted, speak to a specialist today to receive a free quote.
Other insulation FAQs
How long does it take to install cavity wall insulation?
For an average-sized semi-detached UK home, a professional cavity wall insulation installation is surprisingly quick and usually takes between 2 to 5 hours to complete. The installers perform the work entirely from the outside of your property, meaning there is zero disruption to your interior living spaces while they work.
What are the building regulations for cavity wall insulation?
All cavity wall insulation projects in the UK require a building notice to be submitted to a local building control body. A qualified installer will handle this for you, ensuring the chosen material meets the required structural 'U-value' (thermal transmittance standard) to fully comply with current UK building regulations.
How do I prepare for a cavity wall insulation installation?
To prepare for the installer’s visit, clear any vehicles or obstructions from your driveway to grant them easy access to the external walls, move garden furniture away from the house, and ensure any internal areas near the walls are clear so the team can occasionally check interior vents during the drilling process.
C C D General Building is a company designate to take care of your job from the quote job to the end of it
Christian reversed the swing of the door for me in a room. He quoted quickly and his price was fair. He came quickly and did the job well. Would like to work with him in the future
XProbuild Ltd is a London-based building company specialising in high-quality construction, renovation, and refurbishment projects. From roofing and structural works to full property renovations and bespoke garden houses, we deliver reliable, professional results — on time and on budget.
Lucian and his team were a dream to work with on our house renovation. They're professional, competent, and lovely company. The job was completed in good time, and without additional costs. Lucian went above and beyond to make sure we were happy with the finished project.
ANDREW PALFREY
Cavity Wall Insulation
Self employed man worked as fixer doing floating ceilings, bording, done home maintenance. Tree felling all aspects of gardening re turfing. Flat pack furniture. Painting and decorating. Labourer can turn my hand to most jobs always done in a professional way
hi i am a time served carpenter and joiner of the old school, i am semi retired but still looking for work i have years of experience in all aspects of the trade, including kitchens flooring plumbing and as a handyman able to turn myself to do almost anything that is required to a high standard. i am new to RP in this area.
First Class Tradesman, Knew what he was doing and flexible with appointments
PWD Construction is company with more 10 years experience in building extensions, doing loft conversions, fitting kitchens, bathrooms, floors and general building work. We can work with small and big projects and we are happy to quote for any job.
He came on time and was very informative and nice but we have not heard from him since. A
Valdas & Sons
Cavity Wall Insulation
Over 22 years experience. Wet room, Bathroom & Tiling specialist. All aspects of building works undertaken. All works completed by a trained professional & All works guaranteed for 12 months, fully insured, professional, reliable service.
Thank you for transforming our ensuite. We are really pleased with the results.
We are a friendly and reliable team who work hard to deliver the best service to our customers. We are based in East London and for 7 years of background experience we are providing for homeowners the highest quality building repair, maintanance, upgrade solutions and complete construction builds. We provide experienced team such as builders, carpenters, plumbers and electricians. Our team will concentrate on every little detail of your property and ensure you are happy and satisfied with the end result. If you are looking for a bulding team in London with many years experience in the building trade than don't hesitate to choose SGVBuilders.
Sergiu and his uncle were great. They made a beautiful job of our bathroom, incorporating all the ideas I had and making practical suggestions. They were very considerate, especially as we have a young baby in the house. We highly recommend them and will be glad to have them do more work for us in the future.
Hi there! I’m a bathroom and kitchen fitter with experience and eye for details.
Southern building contracts ltd are a roofing multi trade building company. The company originated from roofing 25 years ago and has developed and expanded to carry out building work to both domestic and commercial property’s. We carry out full property renovations, managing and carrying out all associated building trades. Sub contractors are managed directly by us for peace of mind from the customers to deliver from start to finish.
Excellent work completed by friendly & professional company. Highly recommend
Semi-Retired Builder experienced in all aspects of Building Works and Repairs.
Helpful friendly and reliable. Used many times. Great service.
Hello, Welcome to my page, i have been in the self-employed building business for the past over 10 years, with countless houses refurbished. I currently work for a company as a professional tiler as well as doing this work as a part time, future proof alternative. I've been working with this company for the past 3 years with my work being seen in the Bond Street underground station.
Excellent tiling. Very professional . Extremely reliable. Will definitely use Mario’s again for lots of other jobs around the flat.
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Proiectarea gr?dinii ?i între?inerea amenaj?rii teritoriului Îngrijirea gr?dinii ?i cur??area frunzelor Presiuni Sp?lare Altele ad?ugare de locuri de munc? Arrangements and painting
cr construction
Cavity Wall Insulation
We are a small family run building company offering free quotations and competitive rates.
NS Repair Home
Cavity Wall Insulation
Affordable, Reliable & Friendly We are just a call or message away, Kitchen remodel, Bathroom remodel, Interior finishing, Plasterer, Painting and decoration, Floor fitter, Tiler, cleaning,
Carpenter and joiner by trade with 30 + years experience in multi discipline construction projects, from a single storey extension to an award winning marine residence....and everything in between.
Can not rate Steve highly enough, The standard or work was superb, his approach to the project was professional and very organised. The project it self was a complete renovation consisting of creating a large open plan kitchen / diner and family space. this involved a complete relocation of kitchen which not only came in on time but also in budget. The Family is thrilled with the finish and enjoy living in the space. Brilliant.
I’m a self employed carpenter with 25 years experience and I undertake all aspects of carpentry from roofing to kitchens. Flooring, decking. Everything. I’m reliable and trustworthy and will produce quality work
First class job from quote to payment. Prompt response. quick quote which was a very fair price for the job. All communication was clear. Timing as arranged, clean and tidy worker. Will definitely use again.
We are a small team of specialist trades people dedicated to providing our clients a professional, reliable and trusted service. With over 60 years of collective experience, this gives our clients the opportunity to benefit from the peace of mind that we will always deliver high quality work, on time, every time. We provide the following range of services: tiling, skirting board fitting, laminate flooring installation, repair and renovation of natural timber flooring, decorating and joinery together with general 'day to day' domestic and commercial property maintenance. Henri’s Property Renovations & Maintenance is a trading name of Cenve Limited a company registered in England and Wales
I have been running my own business for 29 yrs, have experience in all types of general building,attended collage as a bricklayer, and hold a city and guilds certificate, i have worked on both large and small construction sites over the years I carry out a wide range of building work and roofing. Insurance work etc
Ian came quickly to give us a quote. The quote was excellent and he came to do the work within days. Couldn't ask for better especially in these trying times! We were very pleased with the painting and he even painted an extra fence which wasn't quoted for. Highly recommend this tradesman!! He was friendly and respectful.
We are a construction company with over 25 years experience in Extensions, Conversions, Decorating, Complete Refurbs, Paving and Outbuilding Construction. UK & Overseas experience. Expect excellent design, work systems and the highest quality standards.
Excellent job and finish in time
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