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

Leon builders LTD

Cavity Wall Insulation

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With many happy and returning customers over the last 10 years, you can be sure of being well looked after. Our aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I work with a small team of trusted colleagues, who communicate and work together well. Our customers are accustomed the outstanding quality of projects we complete, by sourcing quality materials with experienced installers we create truly bespoke masterpieces lasting our customers many years. 5 year guarantees are included as standard on all completed work.

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Reviewed by Shamim on 21/4/2025

Leon was punctual and communicative and completed our landscaping job to a good standard and had some good design ideas. The team finished and cleaned up the entire work area in a tidy way. We have no hesitation in recommending him.

First Rate Flat Roofing

Cavity Wall Insulation

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Hi im a fibreglass flat roofer with over 18years experience in the trade, we offer a great service at very competative prices, all our roofing work comes with 25 year guarantee and also offer a 10 year insurance backed guarantee on request.

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Reviewed by TONY on 27/9/2025

What can one say it took a bit ( looking at the ratings I thought it might take a while as I them to be expected to busy ) But when they got to me they did an amazing job in only around 6 hours , completerly removed flat roof over bay window/ front door with all edgings ect, wonderful job. Highly recommend

Nabstar Construction

Cavity Wall Insulation

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Welcome to Nabstar Construction – Your Trusted Builders in Watford We specialise in high-quality building and renovation services across Watford and the surrounding areas. With years of experience in the industry, we take pride in delivering exceptional craftsmanship, attention to detail, and outstanding customer service. Whether you’re looking for home extensions, new builds, refurbishments, or general construction work, our expert team is here to bring your vision to life.

Toma Lup

Cavity Wall Insulation

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We are a small group of professional builders with 15 years experience specialized in building and refurbishment properties for people that don’t want a lot of hassle and headache when dealing with builders, so we are providing all the services from start to finish and ensure everything is done to high standards while keeping the client satisfied on the price.

URBAN MODERN HOMES LTD

Cavity Wall Insulation

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We are a team of highly skilled individuals, with a great sense of professionalism and integrity. Our purpose is to deliver the transition from our customer's vision to reality and strive to bring satisfaction and joy with the results of our work. We aim to offer the best possible service while building trust with our clients. Having over a decade experience in the building industry, gives us the possibility to be quick, flexible and efficient.

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Reviewed by Zillionz on 2/5/2024

bricklayers

Cavity Wall Insulation

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Small bricklayers gang ready for work : Face brickwork,Block work,Garden wall's any design you like. Pointing weather struck,flash. Old stock brickwork,New build brick work, Extensions,driveways.

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Reviewed by Landscapes By Jonathan Stollar on 6/5/2021

If you need any brickwork or pointing done then get Vaides to do it.

CALTOM CONSTRUCTION LTD

Cavity Wall Insulation

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Caltom Construction has 40 years experience in the construction industry.We specialise in reinforced concrete construction.Nationwide but usually in and around London. Thanks Colin Lavelle Caltom Construction limited

Iulian Electrical Services

Cavity Wall Insulation

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We are a small family run business, our services include New builds, lofts, extensions, refurbs, we also take on small refits kitchens, bathrooms, gardens, structural alterations and ground works, plumbing and electrical. We aim to provide a comprehensive build package under one umbrella. Since opening our business in 2016 our main principle is "never cut corners or standards". We have managed to grow the business in the last few years immensely and establish ourselves as a recognised name. We aim to minimise stress for our clients by offering our expertise in all areas of the construction process and undertaking comprehensive project managing services with design consultation service also available throughout your project. We can provide all the services above by our own in-house team not 3rd parties or sub contracting. If you would like to know more about the work we do or would like a quotation for a project, please send us a message from the contact page or give us a call. We aim to respond to all queries within 48 hours.

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Reviewed by nicola on 26/8/2025

i used julian for the job i wanted done. it was completed in a couple days. he was on time and conscientious.really happy with the result.

Claudiu Gabriel

Cavity Wall Insulation

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We are a well established contractor with experience in jobs ranging anywhere between £35 thousands to £400 thousands. We recently completed a side extension with lightwell at the basement and intricate architectural design, with frameless windows system and specialist roofing, as long as underpinning of basement walls. Another recent job was to renovate a restaurant with new glazed bar and ceiling. Also built a conservatory from soil to roof, including all around upvc system. We can offer insurance for works and H&S, we collaborate with trusted third parties from electricians to plumbers, from bricklayers to roofers, landscapers, etc.... We can also offer D&B services and planning applications, please feel free to call us anytime

In Square Construction Ltd.

Cavity Wall Insulation

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*INSQUARE CONSTRUCTION LTD – Trusted Experts in Comprehensive Building Solutions* At INSQUARE CONSTRUCTION LTD, we specialise in delivering high-quality construction services across a wide range of projects, both large and small. Whether you’re looking to expand your home with a loft conversion, add an extension, or completely redesign your bathroom, our experienced team is here to bring your vision to life. With a dedicated team of skilled builders, electricians, plumbers, and interior specialists, we provide everything from design and installation to final finishes such as painting and decorating. Our expertise extends to exterior works as well, ensuring your property looks exceptional both inside and out. Having gained years of experience working for various firms and as independent contractors, we decided to combine our skills and knowledge to create a company that prioritises quality workmanship, reliability, and customer satisfaction. By collaborating with trusted subcontractors for larger projects, we ensure that every job is completed on time and to the highest standard. At INSQUARE CONSTRUCTION LTD, we pride ourselves on offering a comprehensive service tailored to meet the unique needs of each client. From initial consultation to project completion, you can trust us to provide professional, efficient, and cost-effective solutions for all your construction and renovation needs.

BATEKRIS LTD

Cavity Wall Insulation

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We are a company with years of experience in many trades. We have done commercial and domestic construction and have learned many trades.

midland builders

Cavity Wall Insulation

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ACCOMPLISHED PLASTERING AND BUILDING SERVICES. SPECIALISING IN BUILDINGS. LOFT CONVERSION. PATTEN CONCRETE. PLASTER RESTORATIONS. CELLAR TANKING.FOR BEAUTIFUL ROOMS. SOVEREIGN APPROVED DAMP PROOFING. EMERGENCE.ROOF.REPAIR. FULL PUBLIC LIABILITY INSURANCE

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Reviewed by Mark on 26/11/2023

Clear communication detailed quote and did exactly what was asked,friendly and helpful towards my tenants,would use again and wouldn’t hesitate to recommend.

S 2 PROPERTY SOLUTIONS

Cavity Wall Insulation

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With 15 years of experience we are a small building firm which values customer satisfaction above all else. We specialise in bifold installations, double glazing installations, repairs and finish carpentry. Our experienced team is able to fulfil all of your domestic requirements, from painting your home to complete extensions and renovations.

KALSANA ROOFING & CONSTRUCTION LTD

Cavity Wall Insulation

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All kind of work undertaken with the experience of 14 years !!

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Reviewed by Jonathan on 13/5/2025

Help with a job in the garden removing bushes. Very helpful, friendly and punctual with completion of the job. Would recommended for further use.

KABAKU GENERAL SERVICES LTD

Cavity Wall Insulation

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Family-run property maintenance company with over 12 years experience

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Reviewed by Kandappan on 6/12/2019

He has given the estimate clearly and have done the works reasonably. Any rectification identified was done.

Rivers & Building Services

Cavity Wall Insulation

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My name is Dean. I am a good reputable builder. I am a bricklayer & roofer by trade. I am reasonable on price but we don't cut quality we only use the best materials.Being a general builder I offer all services , roofing, brickwork , groundwork, fencing

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Reviewed by Al on 11/7/2024

We are very pleased with the work that was done. There was a quick response to the job that day via a telephone call. An appointment was scheduled for a couple of days later and the work was started early that day & completed that same day. The workers were on time, polite, knowledgeable and proficient. They promised to make a visit a week later to remove the supportive structure and did exactly so yesterday. I am very pleased with the work and their professionalism.. i highly recommend them. Well dodone

Can Construction

Cavity Wall Insulation

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CAN Construction ! ALL aspects of R.S.J. Work. Fabrication.Alterations,Steel and lintels. Knock through specialists. . FULLY INSURED. We won't let you down.

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Reviewed by Alonzo on 7/5/2026

Chris and John and crew were hard working and brilliant. They turned up on time and made light work of putting in double steels making sure everything was done. When building control requested added work, they had no problems getting it sorted. Hard working team cleaned up each evening. Great job. Price was reasonable.

Five Stars Builders

Cavity Wall Insulation

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We always operate under strong values aimed at exceeding client needs. Our communication channels are always open – our relationship with our clients begins on the first day of contact and only ends once they’re fully satisfied with our work. When you hire our services, you can count on us for the results you want and need. Get in touch today, and discover the advantage of our work.

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Reviewed by Luke on 12/10/2023

Excellent work, timely and clean. Arrange for us to have full use of the bath during the work. Very happy with the results. I will be asking for the guys to do more work for me in the future.