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

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.

Keen Resources: Elevating Your Spaces for Years to Come Welcome to Keen Resources, your trusted partner in building and property maintenance solutions. Established in 2014 and proudly located in the vibrant North West London area, we are your go-to team for all your construction needs. At Keen Resources, we bring a wealth of experience to the table, with a family-run business that boasts a remarkable 25-year track record. We specialise in providing a wide range of services to Residential, Commercial, and Estate Agent clients, ensuring that every project is executed with the utmost precision and professionalism. Our dedicated team of experts covers a diverse spectrum of services, including: General Building: From the ground up, we craft solid foundations for your dreams to take shape. Roofing: Our experts ensure your property is protected from the elements with top-notch roofing solutions. Electrics: Safe and reliable electrical services to keep your property powered efficiently. Kitchen and Bathroom: Transforming these essential spaces into stunning, functional areas you'll love. Refurbishments: Breathing new life into tired spaces, making them vibrant and appealing. Plumbing: Efficient plumbing services to keep your property's water systems in excellent condition. Carpentry: Craftsmanship that adds character and functionality to your interiors. Tiling: Precision tiling work to enhance the aesthetics of your property. Painting and Decorating: Creating inviting and visually pleasing environments. Handymen (Multi-Skilled): Versatile experts ready to tackle any project with skill and efficiency. At Keen Resources, we are not just builders; we are partners in bringing your vision to life. We take immense pride in our commitment to delivering superior quality, meeting deadlines, and exceeding your expectations. Customer satisfaction is at the heart of everything we do. We believe that every project, big or small, deserves the same level of care and attention. With Keen Resources, you can trust that your project is in capable hands, and the end result will be nothing short of exceptional. Experience the difference with Keen Resources, where excellence in construction meets a passion for customer satisfaction. Contact us today and let's embark on a journey to turn your property dreams into reality.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Anne on 7/2/2024

Excellent very pleased with your service. Have already booked a return

Alliance building and landscapes Ltd are a family run business here at alliance we make sure all works is completed to customer satisfaction,no job to big or to small,contact us today for a free quote,book once,book right,book alliance

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Raymond on 28/2/2025

Thanks to Michael and the team for a great job rendering the chimney breast in the attic. Quoted and works completed in less than 48hrs. Not the cheapest of the quotes I received, but went with the positive reviews and wasn't disappointed.

Hello, We are BUILD SAFE HOMES LTD Building contractor with 20 years of experience -Extensions -Loft Conversions -Kitchen fitting -Bathroom fitting -Plumbing -Electrical -Tiling -Carpentry -Decoration -Decking -Driveways -Garden offices -Scaffolding -Roofing All works are insured and covered by 12 months warranty. Please shortlist our company and we will be delighted to assist you with your building project! Regards BUILD SAFE LTD

Hi this is Mo from Britefinish, handyman with over 10 years experience. The wide range services offered with honesty reliability punctuality and professionalism. Handyman Services offered : All Flat Pack Furniture Assembly TV Wall Mounting Door Fitting/Trimming Fitting door Handles, latches, locks,etc Flooring: Laminate, vinyl, carpet, decking etc Odd Jobs e.g fix kitchen cabinet doors and drawers & floating shelves and mirrors Bespoke Furniture Fitting Flatpack Bookshelf/Bookcase Assembly Floating Shelves Fitting Curtain Pole Fitting Roller Blinds Fitting Kitchen Cabinet/Unit Fitting Kitchen Worktop Fitting Hanging mirrors Interior Door Installation/Fitting Internal Locks Britefinish assemble all types of flat pack items including: wardrobes, chest of drawers, beds, kitchen units, sheds, gym equipment, guest beds, bunk beds, office desk, chairs, sofas, garden furniture, home furniture, office furniture, swing sets,bikes, exercise equipment .... Britefinish assemble flatpack furniture items from major retailers: Ikea, Argos, Bensons for beds, Tesco,The Range, John Lewis, Dreams, Harveys, Very, Wayfair,Wickes, Tesco, B&Q, Amazon, Ebay, etc

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Soraya on 18/12/2024

Great work, very reliable and efficient.

Good, conscientious company. High quality work. Orders completed on time, professional service and honesty to their customers.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Richard on 15/5/2024

Work to retile the bathroom was scheduled promptly and delivered very well, on-time and in line with the quote. Wouldn't hesitate to use again. Tidied up and left things looking smart.

We are one of the best building and renovation company in London since 2011. Our experience taken over many years and different architects helping us to provide a service meeting the highest quality standards in every detail, making our homes and city beautiful...

Its quality time! With over 10 years experience, tens of finished jobs and tens of happy clients, I am a landscaper who can manage any job. Big or small, easy or complicated is never a problem for me. For any details don't hesitate to contact me.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ketan on 6/4/2024

Work that took place was amazing and recommend IA trader to anyone that needs work done.

HELLO. MY NAME IS GRIGORE CHIS A MULTI TRADESMAN WITH MAIN TRADE CARPENTRY, JOINERY WHO WORKS IN PARTENERSHIP WITH 4 OTHER PROFESIONALS. WE COVER A LARGE RANGE OF TRADES LIKE CARPENTRY, ELECTRICITY, TILING, PLASTERING, PAINTING, PLUMBING.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Alisa on 25/11/2023

Fast response; prompt communication; understood parameters and limitations; completed job super well and quickly. Intend to hire again for a number of jobs.

Hi at jays property maintenance we run a family run business that are specialists in flat roofing new roofs Chimley rebuilds lead work and all aspects of property maintenance.with a 5 million public liability insurance.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jenny on 3/5/2025

Wanted repairs to our canopy over front door and addition of guttering - Jesse responded very promptly, gave a favourable quote and completed the work all within a few days. Very happy and would recommend. Particularly pleased with sympathetic attention so that new guttering is not obtrusive

Welcome to Property Renovation and Decorating Services: " PROFESSIONAL SERVICE " We are professionals builders with over 17 years experience on all building works: extension loft conversion refurbishment bathrooms kitchens painting and decorating plastering, wood flooring, carpet fitting, tiling. building works undertaken: General Building, New Builds, full Interior & Exterior, renovations and much more. Emy has been providing professional home renovation services for over 17 years. He is praised by the customers for his attention to detail, responsiveness, timeliness and quality work. Call (text) for a free consultation and estimate:

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Wendy on 23/4/2025

Outstanding all round service doing a job we have needed done for a while. We would highly recommend them for their efficiency and pressional approach. After they assessed the work we needed, they got on with it and stayed until it was finished. They left everything so tidy too. Really impressed.

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.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jennifer on 9/1/2023

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.

At Avion Homes, we specialise in new build homes — delivering quality housing from concept to completion. Whether you're a landowner, investor, or first-time buyer, we offer a complete service that covers the full construction life cycle: from early-stage planning, design coordination, and procurement, right through to handover. As TrustMark and Federation of Master Builders (FMB) members, we’re committed to the highest standards of professionalism, reliability, and workmanship. Every project is backed by Premier Guarantee structural warranties, giving you long-term peace of mind. We combine the hands-on care of a local builder with the systems and structure of a professional developer — ensuring your vision is delivered on time, on budget, and built to last. From land to home — we make it happen.

We are a local firm with over 50 years building experience, my son Gareth is a CICS Gold card Carpenter & my oldest son is a City & Guilds advance craft Bricklayer as am I. All of our staff are qualified in their respective trades. We build extensions, carry out house repair & maintenance work, patio and slabbing work, groundwork and excavations, General concreting work, drainage and much more. We fit new kitchens, stairs, doors and windows, all carpentry work undertaken. We have many passed clients who are happy for us to pass on their details as a reference for new clients to use.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Eamonn on 28/11/2024

Excellent communication and friendly team. On time, great work , on budget. No hesitation in recommending at all.

Elevate your home's style and value with our exceptional Painting and Decorating services. • Expert color consultation and design • Fast, efficient, and meticulous workmanship • Personalized service to fit your unique needs • High-quality paints, materials, and finishes • Flexible scheduling to fit your timeline Whether you're preparing to sell, refreshing a tired space, or creating your dream interior, our premium Painting and Decorating services will elevate your living experience and increase the value of your property. Invest in your home and enjoy the benefits of a beautifully updated space that reflects your unique style. Our meticulous attention to detail and commitment to quality ensures a flawless finish that will have a lasting impact. Let us handle the hard work so you can sit back, relax, and enjoy your transformed living space.

25 combined years of experience within the construction industry. We provide a clean, neat and reliable service. We strive to do our best for each and every one of our clients no matter how big or small the job may be. We take on all aspects of masonry work. Garden walls, extentions, chimney stack removals, patios, repointing, traditional brickwork, lime mortar putty… you name it we do it!

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by PHILIP on 22/1/2025

Fantastic work. Andy is very professional and knowledgeable. Prompt, friendly and very competitive prices. We are building a 2 storey side extension and Andy is doing all the building works. We have a very difficult set of footings which involves a line of trees close by. Foundations passed by Building Control with flying colours. Very satisfied and Andy will be quoting for other work I have planned and I am sure we will be working together for sometime now. Would recommend him to anyone.

ELANTI CONSTRUCTIONS LTD

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Toni on 19/5/2025

Amazing

Quebuild London Ltd offers a full building service with every aspect of works covered no matter the scale or scope of works to both residential and commercial buildings.We also provide proactive and reactive maintenance packages with 24/7 one hour service for emergency call outs.We pride ourselves on using only highly skilled and courteous tradesmen with all trades in house so as a company we have full control of our projects. From your initial meeting with one of our knowledgeable estimators who provide fixed price detailed estimates to completion of works overseen by amazing management our clients needs are paramount,this ensures a streamlined service with quality controlled finishes beyond the industry standard. We have full public liability insurance with all risk assessments and method statements in place at all times no matter the size of works for peace of mind for us as a company but more importantly you as our client.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Tom on 3/8/2024

John at Quebuild went above and beyond for us on this job. He completed all the work in a timely manner and for a very reasonable price. He was super knowledgeable and extremely attentive to detail, making sure to leave a high quality finish in terms of decoration - and he came back afterwards to address a few small things that needed doing. He was also a pleasure to have around - and I would highly recommend him for any other work. 10/10.

I have been in the trade for 22 years. I worked for dulux before I set up on my own 10 years ago. I undertake all aspects of internal/external painting and decorating with a professional, friendly and reasonably priced service. I take pride in my work and aim to make my customers happy with the quality of my work. All my work comes with a guarantee. We also do internal wall skimming and plasterboard repairs, waste removal and house removals.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Georgina on 10/3/2025

Pierre and Dee were absolutely wonderful- they painted and stained our stairs for us beautifully and exactly what we had hoped for. They were also very considerate while we were working from home! Will definitely be recommending to our friends and family :)

General builders

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

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