The quick way to find a local Cavity Wall Insulation specialist in London

Post your job for free. Get quotes. Read reviews.

Over 10,000 rated tradespeople
are ready to help you get your job done

Over 3 million happy homeowners
have found a quality tradesperson

Over 1 million ratings
with 88,000 5* ratings in the last 12 months

Join our group of happy customers

Thousands of 5 star reviews

Read real reviews from customers about their service experiences.

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

Browse Cavity Wall Insulation specialists

Take a look at our Cavity Wall Insulation specialists profiles, read reviews and request quotes directly.

At Optimal Finishes , we understand that choosing a contractor is a big decision. That's why our team of specialists and multi-skilled tradesmen is committed to delivering high-quality work with integrity for over 25 years . With a strong record of positive reviews from satisfied customers, you can confidently rely on us. We provide clear, competitive quotes and stick to them—no surprises. We proudly accommodate services for both residential and commercial clients. Our services: -Painting Interior and Exterior Painting Mould and Damp Control -Flooring Installation Laminate, Vinyl, Hardwood, and Engineered Flooring Removal and Installation. Underfloor Heating Herringbone -Tiling Wall and Floor Tiling Splashbacks Tile removal and replacement Bathroom installation Exterior tiling Wet room installation Underfloor heating Swimming pool tiling -Carpentry Bespoke Furniture and Fixtures Doors and Windows Staircases Kitchens -Plastering Decorative Cornicing / Plasterwork Dry Lining & Plasterboard - Installation and Repair Internal & External Rendering Plaster Skimming Polished / Other Plaster Finish Screeding/ Standard Coving -Roofing Chimney repair Clean gutters Roof cleaning Flat roofing Gutter installation and repair Pointing Roof inspection, Installation and repair Solar panel installation Why Choose Us: Our team is passionate about delivering great results. With a 9.8/10 rating from local customers, we take pride in our reliability and quality. We know every project is unique, so we work closely with you to make your vision come to life. Using top-notch materials, we ensure a beautiful, long-lasting finish. Plus, we value your time and strive to complete every project on schedule, making the whole experience as smooth and enjoyable as possible! Ready to transform your space? Contact us for a free quote within 24 hours. Let's discuss your project, and we'll provide you with a detailed estimate.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Lamia on 8/1/2025

Great team, great work, brilliant service. I asked got my daughters room to get split with a partition wall and they done an amazing job. They was thorough, fast, great work. Really polite, great communication and would definitely use for future work

General builders

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Colin on 9/1/2024

My name is Max Akkaya and my company started with plumbing and bathroom refurbishments after graduating from my NVQ level 2 course in Heating and Ventilation. In the last 20 years we have evolved into One Stop Design and Construction Ltd - a fully insured company that covers all aspects of home improvements such as loft conversions, extensions and bespoke refurbishments. I haven’t been on Rated People in a while as I have got all my work through recommendations, however I recently moved to Surrey so I am building my client base out here also. I’m straight forward, honest and pride myself to giving attention to the smallest of detail. We undertake small and last scale projects and work with a team to deliver loft conversions, extensions and bespoke refurbishments including all plumbing, electrical and gas needs.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by David on 21/4/2025

Very pleasant experience. Punctual, polite, efficient and friendly. The job was finished to a very high standard. Would recommend 100%

With experience from Italy and from U.K in painting and decorating. Wi try to doo our best for the client, to give quality , responasability,advice if its necesary in our jobs. We belive your home should reflect your personal taste and style.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Anna on 6/6/2025

Had bathroom window sill and window repaired, excellent service, highly recommend. Came out and gave us a quote and then came to do the job within a week to high quality, well-priced and very efficient. Thank you!!

My name is Mariusz Olkowski and I am the owner Olek Builders ltd. We cover every element of the building process from design, , building work, through to finishing your project by fitting kitchens/bathrooms and overall decoration

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by carolina on 13/3/2024

Wehad the pleasure of hiring Olek and his team for a recent tiling project, and we couldn’t be happier with the results. From start to finish, their professionalism, attention to detail, and friendly demeanor stood out. We wholeheartedly recommend Olek for any tiling project. His workmanship, courtesy, and commitment to customer satisfaction are truly outstanding. Thank you for transforming our space into something remarkable!

We have over 30 years experience in landscaping and general home improvements, no job to big or small, we provide free quotations and site visits. Customer satisfaction comes first for us every time. All of our work comes guaranteed, we use high quality products, machinery and all work is done in house. We don’t sub contract any work out.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Martin on 29/6/2025

Kieran did an excellent job of digging out an overgrown flower bed and rebuilding a brick retaining wall topped with coping. He was most helpful in discussing options, worked very hard, and was a pleasure to work with. We are very satisfied with the end result - a great improvement. I can certainly recommend Kieran for similar jobs.

Established since 2001, I have delivered a variety of building projects efficiently, economically and stress free to very high standard. My services include Space Planning, Design & Build, Site Management (ACIOB). Project Management, Renovations and Refurbishment of both domestic and commercial properties. I pride my self on my ability to deliver the required project to the specified quality within the agreed duration & budget with a courteous and friendly approach throughout.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Richard on 9/12/2023

Very good, fast efficient and clean, Definitely recommend, Thank you Khal very happy with my new unit.

GRD Design & Build Ltd is a reputable and dedicated home improvement company based in Southall, with five years of proven excellence in the industry. Our experienced team of four skilled professionals specializes in a variety of services, ensuring that every project is executed to the highest standards of quality and craftsmanship. Our Services: Painting and Wallpapering: Loft Conversion Flooring Roofing Plumbing Carpet& Lino Why Choose Us: Experienced Team: With five years of experience and a dedicated team of four professionals, we bring a wealth of knowledge and expertise to every project. Quality Craftsmanship Customer Satisfaction GRD DESIGN & build ltd , we believe in turning your vision into reality, enhancing your living spaces with professional and reliable services. Contact us today to discuss your next project and discover how

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jay on 17/2/2025

Mandir from final touch was amazing. I highly recommend him and final touch. I called final touch for an urgent job and they came the following day. No complaints and very reasonable price. I had to lay carpet on stairs, passage and two other rooms with carpet which did not fit exactly plus a combination of old and new carpet. Manvir was able to do it no problem and made it look easy. Get in touch with Manvir for any jobs. Will definitely be using them again

We have 15 years of experience within the industry. We offer a wide range of services: Laminate Flooring Floor Tiling Door / Window painting External wall painting Internal Painting & Decorating Wall murals / Paint effects Wall Tiling We work hard and clean and make sure that our clients are happy.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by giulio on 15/4/2025

Alin is reliable, punctual, and honest. We agreed the price of the job and I did not have any surprise, and when we had to do something extra he was very reasonable with price. He and his team started on time, were very respectful, did a good job, and are very easy to work with. I would happily work with them again.

At Supafix pride ourselves in offering a highly competitive and efficient roofing service, from initial survey right through to completion and handover. We provide a comprehensive and quality range of roofing services and products.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Diana on 3/4/2019

Done a fantastic job at a great price.. Communication was great

We are an electrical contractors with over 20 years of experience. NICEIC registration. Always delivering friendly and exceptional service. Public liability insurance for your peace of mind.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Tunji on 7/10/2024

Great price, prompt and professional.

Bla

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by phil on 7/8/2024

LD Design & Build is a trusted construction company specializing in a wide range of services to meet the needs of both residential and commercial clients. With a focus on quality and attention to detail, we offer expert plastering and rendering, painting and decorating, plasterboard installation, as well as handyman and carpentry services. Whether you're renovating a single room or undertaking a large-scale project, our skilled team is committed to delivering superior craftsmanship and exceptional customer service every step of the way. At LD Design & Build, we take pride in transforming spaces and ensuring our clients' vision comes to life with precision and care.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ben on 28/6/2025

The paving slab steps leading to our front door needed urgently replacing. Then we identified that the supporting brickwork wasn't in great condition. Dajland made the supporting structure secure and removed and replaced all our slabs, including doing a tricky cutout. Communication was great and the cost was very reasonable. The biggest thing I can praise is Dajland's attention to detail. He works carefully, methodically but also very quickly. A genuine professional. I wouldn't hesitate to use him again.

The smallest details can make a real impact when it comes to designing a space, but only a true professional knows how to bring these details together to create a seamless design. That’s where Complete Kitchens And Renovations comes in. With over 35 years experience and a team of skilled tradesmen you'll be in safe hands. ? We work throughout the South-East providing bespoke home renovations and extensions tailored to our clients’ needs. ? From a small kitchen installation to a full house renovation, no job is too big or small.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by sandra on 28/3/2024

Very happy with result.

H&R Renovations ltd always aims to deliver a high standards of work qualities to satisfy all my clients expectations and meet theirs satification.

Pyramids is a high end building contractor based in the Borough of Hammersmith and Fulham, specialising in conversions, extensions, and full home refurbishments. We keep our practices trustworthy, honest, organised and friendly. We strive to deliver the very best in quality work for our clients. Our team have worked together for many years, which makes for a healthy atmosphere on site and around the office. We are really approachable too. Please feel free to call or send an email today so we can arrange a time to meet that works around your schedule. We will meet with you on site, listen to your ideas in detail, carry out a full site survey, discuss the building process and confirm the brief with you. Following on, we will be able to give you advice for the next steps and provide you with a detailed quotation and proposed timeline.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by anette on 7/9/2010

With very short time to get the work done they did a great job, and I was quite happy with the result.

Calladine Services is a family run business which has been established since 1989. We specialise in painting agricultural, industrial and domestic buildings with our access platforms and American airless spray units.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Michelle on 29/1/2024

Swift and thorough.

J&B roofing and construction is a reliable hardworking company established by myself and my partner. After working together for several years on both private and commercial projects we decided to join forces and created J&B roofing. We specialise in roofing, any job any size. We complete all jobs to a professional high standard and are happy to customise every job to suit your individual need, budget and style.

Latest homeowner review
full starfull star
Reviewed by Ronke on 2/5/2025

James Butler also trades as CGS Landscapes. He paved my driveway with poor quality slabs in September 2024 blaming the manufacturer and not himself. More broken slabs has been replaced by him 3 times in 6 months. He has refused to respond to my calls. He texted back calling me. STUPID when I texted him to say I will report him to RatedPeople and the authorities. More slabs broke 2 days ago. Sent him the picture. He simply texted back: MOVED TO DEVON NO LONGER WORKING. Please don’t hire James Butler.

Gabrica Ltd is a leading construction company renowned for its commitment to excellence, innovation, and client satisfaction. With a proven track record of delivering superior quality projects across residential, commercial, and industrial sectors, Gabrica Ltd stands out for its meticulous attention to detail, stringent adherence to timelines, and unwavering dedication to customer service. Equipped with a team of highly skilled professionals and state-of-the-art technology, Gabrica Ltd excels in every aspect of the construction process, from initial planning and design to construction management and final delivery. Committed to sustainability and environmental responsibility, Gabrica Ltd integrates eco-friendly practices into its projects, ensuring a lasting impact on the communities it serves. With Gabrica Ltd, clients can trust in a partner that consistently surpasses expectations, delivering exceptional results that stand the test of time.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Joe on 27/5/2025

Brilliant. Efficient, hard working, friendly, professional, good vale and quality work. I'm very pleased and will use again.

We have been working at this trade for over 15 years. My company and works people hold a number of different NVQ qualifications such as electrical, engineering, railway engineer, civil engineering. We take customer service very seriously and we ensure to reply as soon as possible when someone contacts us. We also ensure we give a fair deal for a great service in return.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Sean on 2/4/2025

We hired Cani Building Services to replace the front stairs and pathway of our Victorian home with granite pavers in the spring of 2025. When evaluating the builders it was important to us that we found somebody who was professional, reliable, and detail-oriented. Durim offered a competitive quote and promptly started work. ?He completed our job to a high level of quality within a week’s time, and we are very pleased with the outcome. We would absolutely recommend his services to others!

Post your job for free

app-icon

Get our app for homeowners

  • Send messages and get notifications from tradespeople
  • Add photos to get more accurate quotes
  • View tradespeople's profiles