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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.
we are Masons with over ten years experience, all four of us are level 3 qualified and take great pride in all of our work carried out and put 100% into everything we do we never leave a job until we are happy the end product and customer satisfaction we undertake everything from plumbing to eletrics new builds to extentions to changing a roof tile. no job to small.
They do exactly what they promise
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My company has 3 years tuning and I have so many jobs around .I have so many reference and I am happy to give them.you not going to be disappointed with as.thanks
Colin and his team are hard working people . They removed my old flat roof which was leaking and put new roof . They started and finished the work quickly as agreed in high standard . Price is reasonable .
H&S LOFTS LTD
Cavity Wall Insulation
I’m general working carpentry/renovations/painting/kichen/bathrooms /dry lining /fencing /driveways
Royal County Has been trading for 7 years, with over 20 years roofing experience. We take great pride in all the work we undertake.We provide a polite and professional service, covering all aspects of roofing tiling, external decoration and carpentry
Mike and Matt did a great job sorting the roof on my garden room, especially after discovering it was completely rotten and needed replacing. The guys were friendly, efficient, and flexible taking into account our preferences. Everything was tidied up properly and we're happy with the result. Would def recommend
Belgrade Ltd
Cavity Wall Insulation
With 20 years of experience in the construction industry, we have developed extensive knowledge and hands-on experience across a wide range of building projects. Belgrave Ltd take great pride in delivering high-quality workmanship, reliable service and excellent attention to detail. We believe in honest communication, professional standards and making sure every job is completed properly and to the customer’s expectations. Whether it’s a small job or a larger project, our aim is simple: provide a professional, reliable service and leave every customer completely satisfied with the finished result.
North South Windows area home improvement company based in Cobham, Surrey. We specialise in the supply and installation of high quality windows and doors in timber, uPVC and aluminium. With over 15 years experience in the industry we pride ourselves on carrying out work of the highest quality. In addition, our team can provide a range of home improvement services from whole extensions to smaller tasks such as kitchen and bathroom renovation.
The guys were very helpful and extremely patient and left me with a perfectly working door.
Ceiling 2 Floor Ltd
Cavity Wall Insulation
Having been in the field for over 3 years, working for people , decided to take it further by opening my own construction company. We are a dynamic construction company specializing in innovative and high-quality building solutions. We deliver excellence with a commitment to precision, efficiency, and customer satisfaction. We specialise in resin driveways, Resin internal floors, resin worktops we work with resin like no other. We also specialise in stretch ceilings(fabric ceilings) and Venetian plaster/polish plasters. We believe we are the only company that offers those services under one roof. Although we specialise in newer products, we never shy away from any challenges, as we are fully qualified plasters, ceiling installers, dry liners and in floor installation.
We are a well Establish Renovations company Who specialised in property renovations and we have a top quality team of people with specialist top end kitchen and Bathrooms Installers,Plasterers, Plumbers, Decorators and Electricians.
Good value for money. Work done in a good timeframe Team were always reliable and worked hard We are very pleased with our extension
Here at Tenfold Renovation, we aim to forge close, trusting relationships with all of our clients. Allowing us to bring creativity and craftsmanship together to deliver the best possible results in the industry. Whether you have a property you want to build or just want to renovate your current property into your dream home, we can help turn your vision into reality.
Vitaliy & his team are excellent. They were very punctual starting at 7.45 every day & working full solid days, even at weekends. They never missed a day. Vitaliy kept me daily updated regarding the process & was present on the job each day. The quote was detailed & competitive & final cost close to the original. The work was completed to a very high standard. It was a complex job but Vitaliy made the process less stressful. I was kept updated asked my opinion even on the smallest things.
Fifteen years experience providing excellence in all interior and exterior home improvements, from first brick to final paint stroke. specialising in carpentry, kitchens, extensions and garage conversions.
Excellent service from Luke. Arrived when promised to quote, understood the work and kept me informed all the way through the process and answered questions quickly when needed, suggesting alternatives based on experience. The work has been completed to a high standard and will use him again for other jobs and recommend him to others without hesitation.
Thomas and Merek did the job to high standards. Very satisfied with the quality of work as well as work ethics. They came, figures out the problem and sorted it out. Will hire again.
Garage Conversion Specialists – Go Convert Ltd, trading as JMR Building Contractors. With over 14 years of experience, we have built a strong portfolio and loyal customer base, completing over 200 garage conversions since 2017. We are fully insured, and all employees and subcontractors are CSCS trained and qualified. Every project is completed to a high standard at competitive prices.
Highly recommend JMR builders who have been professional, punctual and provided quality material/workmanship. The attention to detail has been spot on.For example they searched across the country to source the same bricks as my main house wall. There quotation was competitive and over half of the cost of one of my quotes. Highly recommend.
We are a family run Utility & reinstatement business that are based in the area of Coventry. We have been trading since 2016. We specialise in gas, water and electric service renewals to existing and new builds and also offer driveways, and drop kerb services. Also brickwork ,concrete pads . Garden make overs . All our workers are time served with correct credentials and experience. We hold the below accreditations 1. iso9001 2. Constructionline Gold 3. Acclaim 4. SSIP 5. LRQA GAS, WATER & ELECTRIC services & mains 6. Tarmac, backfill, bricklaying nvq
Local Renewable Energy, Plumbing, Heating, Joinery, plastering, electrical and general Building Professionals. Trustmark Accredited, PAS 2030 Accredited, Green Deal Approved Installer and Gas Safe Installers. ECO 247 serve our growing clientèle of environmentally and economically aware customers. We provide plumbing, heating and renewable energy services, (including emergency call-outs when possible), throughout Prestatyn and in neighbouring areas in North Wales and the North West. We also specialise in general building work such as, but not limited to, Kitchens, Bathrooms, Extensions and full renovations of domestic and commercial properties. Our team includes heating and plumbing, joinery, bricklaying, plastering and electrical professionals with extensive knowledge and experience of mechanical and electrical engineering, renewable energy and technical consulting services. This combined skill-set allows us to develop systems that cater for the needs of traditional, modern, and state-of-the-art environments.
They were excellent and very reasonable
Pro Master Gecko is a London based damp proofing specialist, delivering expert diagnosis and long term solutions for damp, condensation, and moisture related issues across residential and commercial properties. We focus on identifying and resolving the root cause of damp, including rising damp, penetrating damp, and condensation. Our work is based on proper assessment, ensuring the correct treatment is applied from the start not guesswork. Whether you’re dealing with damp walls, mould, or ongoing moisture problems, we provide reliable, high quality solutions across London. Our core services include damp proofing, damp inspections, DPC injection, condensation control, mould treatment, and structural waterproofing/tanking systems. We also carry out specialist plastering works including damp resistant replastering, lime plastering, and decorative finishes, along with external rendering and repairs to prevent water ingress. With a strong reputation built on quality and consistency, over 65% of our work comes from returning customers and referrals. We are fully insured and committed to delivering a professional, reliable service with transparent and competitive pricing. Works undertaken: Damp Proofing (Rising Damp Treatment & DPC Injection) Damp inspections & Moisture Diagnosis Penetrating Damp & External Repairs Condensation Control & Ventilation Solutions Mould Treatment & Prevention Basement Waterproofing & Tanking Plastering & Damp Resistant Replastering Lime Plastering & Breathable Finishes Painting & Decoration Soundproofing Water Damaged Ceiling Repairs External Sand & Cement Rendering Silicone Render / K-Rend Polished Plastering General Building Works All work is completed to a high professional standard with attention to detail and long term performance in mind. City & Guilds Certified Safeguard Europe Damp Proofing Accredited K Rend Approved Applicator Fully Insured
The work completely was of a very high standard with immaculate attention to details. Jerry was punctual from the survey stage to the end of the work. He sorted little snags with the wall, separated the work area with a plastic sheet so the dust was minimised. After each day, my home was left clean and the job was progressing well. The end result looks great and no issues so far. I would recommend them 100%
Integrity and hard work are the essence of this small company.
Ben is a highly competent and reliable builder. He completed our kitchen/garage conversion and bathroom work efficiently and to a great standard. Ours was a complex job with many different components all of which Ben tackled with no complaints, routinely offering practical solutions to any issues that arose which enabled us to retain our look and feel while keeping to budget. With us for nearly 7 weeks, Ben was very friendly at all times and we felt totally happy leaving him alone with keys to the house.
Rynik undertake domestic, commercial and industrial projects. As a trustworthy, hardworking, dynamic team we strive to supply the highest quality workmanship to our private residential clients as well as our larger company associates throughout the UK.
Excellent workmanship, punctual, fab price. Reliable. All you could ask for really in a tradesman. Thank you
Silaghi enterprises
Cavity Wall Insulation
SELF EMPLOYED 36 YEAR WORKING HISTORY & EXPERIENCE INCLUDE: •Building / Maintenance contracts for •Brighton and Hove city council. •Building / Maintenance contracts for •Lewis district Council. •Liaising with planning officers. •Public house renovations. •Office fit outs. •House building. •House extensions. •Loft conversions including adaptions to adhere with disability regulations. KEY SKILLS & COMPETENCIES •Project planning - Leading building contracts and ensuring lines of communication are strong within those teams. •Financial planning of contracts. •Negotiation skills, When establishing contracts with suppliers and Vendors. •conducting statutory inspections according to legislation regulations. •Skilled and Joinery (first and second fix’s). •Shop fitting / decorating. •Plumbing. •Bricklaying. •Roofing. •Plastering. •All Ground works and drains. •Experience of health and safety and on site risk assessments. •Raising method statements and issuing permits to work on site. •Use of IT and telephone systems to maximise the effective management of the project/contract. •Excellent team player with the ability to work on own initiative. •Group of 5 full time employed workers. •Great environment awareness. •Possesses a common sense. approach and “can do attitude“ to problems. QUALIFICATIONS: •City and Guilds Plastering •City and guilds bricklaying and ground work. •Federation of master builders carpentry. •Experience of mechanical and electrical refrigeration. •Health and Safety - Current. •Environmental Awareness - Current.
Very pleased with Wes work Did a great job
BM Pro Manage is a premium building company specializing in high-quality view extensions to expand properties, loft conversions, and luxury bathrooms and kitchens. The company is dedicated to delivering exceptional craftsmanship, innovative designs, and bespoke solutions tailored to each client’s needs. With a strong focus on quality, aesthetics, and functionality, BM Pro Manage transforms living spaces to enhance both comfort and value.
I feel fortunate to have found Bartek and his band of builders. They have done some excellent work for me, very tidily and well done, and the price was fair. I recommend him without reservation. He is helpful, gives good advice, and always looks for the most economical solution without cutting corners. I give him five stars without hesitation.
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