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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

Browse reliable Builders in Knebworth

Take a look at rated Builders serving Knebworth, read reviews and submit your job for free.

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Reviewed by SPENCER on 3/2/2026

Family company who started trading in 2013 .Our mission is to impact lives, offer our greatest services and advice to homeowners and to develop ongoing relationship for the future. In an ever more tough environment which is governed by the big companies we still believe that developing a good relationship with people is paramount. We always give 100% in order to deliver big or small projects on time with a great sense of duty and responsibility. This being said we are here to offer out our five star services to you in a way that we would like any business regardless of their domain to provide . Many thanks and God bless you. Tudor

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Reviewed by Travis on 13/6/2025

Tudor was phenomenal - arrives on time, has quality work, and provides exceptional advice. Would use him and his brother again in a heartbeat.

Sinevir Construction is your trusted partner in construction with over 15 years of experience. We offer a full range of services, including plumbing, tiling, bricklaying, plastering, carpentry, bathroom installations, and building homes from the ground up. We guarantee high quality, adherence to standards, and timely project completion. Our team of professionals uses the best materials and advanced technologies to ensure durability and reliability. We also provide competitive prices, offering an excellent balance of quality and cost. We value open collaboration and consider all your preferences at every stage of the project. Clients choose us for our professionalism, accuracy, and commitment to quality. With Sinevir Construction, your construction dreams become reality, backed by superior results and the best fair pricing.

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Reviewed by Raz on 28/9/2025

Outstanding job. Completely transformed the space. The guys were flexible (with my availability), worked really hard and kept me informed throughout the process. Will definitely get them in again to quote on other work I need to have done.

We provide excellent renovations for Roofing/Flooring/Painting/Kitchens/Tiling with an experience of more than 25 years. Our aim is to exceed customers expectations.We always pay attention to the customer request and try to finish the job within the deadline.

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Reviewed by Philippa on 29/6/2025

Thanks

Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence

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Reviewed by Isaac on 29/11/2025

Install, repair, and maintain pipes, valves, fittings, drainage systems, and fixtures .Collaborate with general contractors, electricians, and other construction professionals.Follow building plans and blueprints.Respond to, diagnose, and resolve plumbing emergencies.Perform routine inspections of plumbing and drainage systems.

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Reviewed by Cathie on 16/1/2025

Zenit LTD. With over 20 years experience in decorating,plastering,carpentry and building works and restoration of old and new buildings. Experienced and well trained tradesmen. We provide high-end work that is unique to customer requirements. Professional, responsible, very accurate and organised team. We do high quality, all tips of carpentry and joinery and a lot more. Finishing NVQ 2 ,Carpentry and Joinery ProQual NVQ 2 Diploma, all operatives are fully CSCS Qualified and have carpentry work experience.

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Reviewed by Prem on 3/11/2025

Bennbrook windows is a well-established FENSA registered installer of UPVC, Wood & Aluminium Windows, Doors & Conservatories. We cover Essex, Herts, Middlesex, London, Cambridgeshire & Kent. All our work is covered by a 10 Year insurance backed guarantee.

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Reviewed by Ulasi on 10/3/2025

Windows completed on time and still look good

17 years of experience and a customer-centric approach, we're proud of every job we do; whether it's fixing electrics, landlord certificates, emergencies, performing repairs or working on major installations. That's why every job includes a minimum 1 year guarantee.

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Reviewed by Leo on 15/12/2025

Good-quality work done to replace the thermostat for electric underfloor heating. Communication was good and the electrician arrived on time, not leaving until he was satisfied everything was working correctly. Recommended!

At Home Counties Roof Care, we pride ourselves on delivering reliable roofing with a local touch. Based in the Home Counties area, we bring years of experience and a genuine commitment to customer satisfaction in every project we take on. Whether it’s a full roof replacement, minor repairs, or preventative maintenance, we offer a friendly, professional service using only quality materials and proven techniques. But we don’t stop at roofing — we also offer a range of exterior services, including fencing, turfing, and exterior painting, to help keep your home looking its best, top to bottom. Why choose us? • Fully insured & experienced team • Free, no-obligation quotes • Honest advice and competitive pricing • Respectful of your home and time • Rated for quality and reliability We take pride in our workmanship and build lasting relationships with our customers. No job is too big or small — your property is in safe hands with Home Counties Roof Care.

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Reviewed by Binesh on 4/8/2025

Great service end to end for Layne, reliable, on time and got the work done as required. Will be using them in the future

I have 16 years of experience working in double glazing industry. 6 years in manufacturing and last 10 years as service engineer. Cscs card and nvq level 2. Public liability insurance. Valid DBS check.

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Reviewed by Jackie on 23/1/2026

Very busy tradesman, did an excellent job of renewing one lock and repairing another for a very reasonable price., checking I was happy with the results as he went along. Highly recommended.

We’re a fast growing Roofing and Gutter company based in Oxford, South East England. We are committed to providing a professional and efficient service at all time whilst maintaining the highest standards of work. Our extensive experience in the industry make us the go to company for roofing and gutters work throughout Oxfordshire, Buckinghamshire, and surrounding areas. With a vast array of expertise and experience, our workforce specialise in a variety of roofing services, from small repairs to a full re-roofing. Our roofing services are suitable for both residential and commercial properties. All our roofing services are fully insured during the duration of the work carried out by our team and covered by our 10 year guarantee once completed. We also offer other specialised services including: Guttering and Fascia protection, Tiling, Roof system protection, Roof re-pointing plus more. Praised for exceptional professionalism and services, the company is known for delivering the highest quality of work, and with over 20 years of in-field experience, you can trust Premier Roofing & Gutters and its team of experts with all types of roofing, gutters & fascias and driveways projects you might have. With Premier Roofing & Gutters as your business partner, you can expect only the highest level of craft and customer service. Most of our trade comes from our past clients recommendations. Our pricing is very competitive, and every single client is important to us.

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Reviewed by Mark on 4/2/2025

Prompt response but still waiting for a quote.

Wallace Roofing Ltd — Reliable, high-quality roofing services you can count on. Specialising in roof repairs, replacements, and new installations. Fully insured, dependable workmanship, and customer satisfaction guaranteed.

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Reviewed by Kate on 15/1/2026

I am so pleased with the work that Alfie has done. He started work quickly, was trustworthy and very reasonably priced. I will definitely contact him again if I need further work on my house. Highly recommend.

We Specialise in External Wall Insulation / External Rendering systems. Qualified Renderers. Johnstone’s Storm-shield Approved. We offer different ranges of Render - Silicone Enhanced Render - Full Silicone Render - Brick Slips - Pebble Dashing. - K-Rend

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Reviewed by ANTHONY on 24/2/2025

Had a brilliant conversation with Robbie regards options about my job and what it would entail. Unfortunately at this moment due to costings I will have to wait a short while before proceeding, which Robbie understands.

Am a handyman who is specialised in different trade like plumbing roof works both new and repairs,kitchen specialists, bathroom fittings, painting and decorating, gardening, brickwork, plastering, drainage, guttering, And I have trading for 2o years in construction industry. I treat my costumers with care and respect.

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Reviewed by David on 4/11/2025

Great job and service. Thank you

Greetings. My name is Hughie. I have over 20 years of experience in plumbing, leak detection, and bathroom installations. My team and I pride ourselves on delivering the best quality work to our clients and ensuring all clients are happy with our work and service. We also have Tradesmen who can undertake any work you may require, who always look to go the extra step for our clients. Our main focus is leak detection, we have all the necessary high-tech equipment to efficiently diagnose and quickly repair ANY leak, blockage or drainage issue, we are available 24/7 to come out to your premises to swiftly resolve any issue you are facing. We have full Public Liability Insurance, and offer discounts to the vulnerable and OAPs, Hope to be in contact shortly, Hughie

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Reviewed by Kike on 23/12/2024

AVOID AT ALL COST and it is the right company. Don’t pay him or his partner Nick Moules any money. Nick will probably visit your home within a couple of hours of posting the job (making you feel confident that your job will be finished as quickly as you need it to be) send you links to the materials to be purchased, ask for deposit and then stop all forms of communication. They will quote +/- £20 to the other tradesmen. Should be banned on this site.

We have over 12 years experience in internal plastering and external rendering. We cover all aspects of plastering including Venetian (polished plaster) and microcement.

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Reviewed by Viktors on 18/11/2024

the worst job ever i have seen i hired anthony as a professional to do some finishing touches on venetian plaster but he didnt do it he took a deposit then he disappeared for three weeks telling stories that he was sick or he didn't have time when he finally came to do the job he did it even worse than before came with one can of filler and made my walls a ugly color arguing that they couldn't be done better didn't return the deposit! i don't recommend it to anyone, do not pay deposit this person

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.

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Reviewed by Zafar on 8/12/2025

We had the delight of having Pierre and Jean redecorate our entire apartment. I have used decorators several times over the last few years, and these guys are by some margin the best. Not only are they extremely knowledgeable about paint, finishes and even colour selection, they are also a pleasure to have in the home. They work to an exceptionally high standard and take real pride in their craft. I would have no hesitation in recommending them.

At Jsk Roofing we specialise in all aspects of roofing from a single slate to a full roof, Fascia, soffits, guttering. No job to small. Local friendly and reliable, Honest Tradesman with no hidden charges. Available 7 days a week no

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Reviewed by john on 23/1/2026

Arrived promptly and identified the problem. Fixed there and then with no hassle. Job well done with no fuss

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