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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 Welwyn

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

Mbg builders ltd is a professional building Company. We have been helping domestic Clients across the West London since 2012. We specialists in… Bathroom installation and repair Electric and plumbing and heating Painting and decoration Carpentry work Plaster and skimming Property maintenance Tiles floor and walls Emergency drainage Electric underfloor heating Also we provide very reasonable price Basins . Taps .bathtub.shower tray . Radiators.tiles .showers.all bathroom Material.

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Reviewed by Jigar on 2/2/2026

Harvinder from MBG Builders completely transformed my dated bathroom into a modern, well-designed space. He was professional, knowledgeable and offered smart layout and design ideas that made a real difference. The workmanship was excellent, with great attention to detail and the work area was kept clean throughout. Communication was clear from start to finish, the project stayed within budget. I’m very happy with the result and would highly recommend Harvinder and MBG

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Reviewed by Amit on 16/9/2025

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.

M25 Plumbing & Heating is your reliable solution for all your plumbing needs. Specializing in bathrooms, kitchens, and central heating systems, we offer comprehensive services to ensure your home's plumbing is running smoothly. From basic plumbing installations to emergency repairs, our team has plenty of experience to handle any situation efficiently and effectively. With a commitment to quality workmanship and customer satisfaction, you can trust M25 Plumbing & Heating to deliver exceptional service every time.

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Reviewed by Spencer on 20/12/2025

Very strong recommendation for Adam. My shower temperature has not been great for a while. A previous plumber scared me by implying it was a major job - replacing, retiling, expensive, destructive - so I put it off. Charlie, however, managed to sort it by just correctly fitting the cartridge. No fuss, minimal cost. Brilliant.

Welcome to DW Plastering & Damp Proofing Services — your trusted plastering and damp proofing specialists based in Houghton Regis, proudly serving Luton, Dunstable, Leighton Buzzard, and surrounding areas. We provide a full range of professional services, including internal and external plastering, rendering, damp proofing, and dot and dab work. With years of experience and a strong reputation for quality, we’re committed to delivering smooth finishes, reliable protection, and exceptional results on every project. Whether you’re renovating your home or improving your business premises, DW Plastering & Damp Proofing is here to help — with friendly service, expert advice, and workmanship you can trust. “Quality Finishes That Last” “We’ve Got You Covered — Inside and Out”

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Reviewed by Peter on 21/11/2025

DW Plastering just re pebble dashed our porch. Did an amazing job. Well blended in with the rest of the house. Would highly recommend. Not easy to find someone with this skill.

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.

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Reviewed by Tunji on 7/10/2024

Great price, prompt and professional.

Welcome to GRS Building Services, where craftsmanship meets commitment. With a decade of unwavering dedication, we have been providing top-notch construction services across a spectrum of specialties. From robust brickwork and blockwork to seamless extensions, solid substructures, captivating landscaping, and durable fencing – GRS Building Services is your trusted partner for all your construction needs. Our exceptional team is the backbone of our success, ensuring that each project is executed to the highest standards. Whether it's crafting intricate brick details or constructing expansive extensions, our skilled professionals bring precision and expertise to every job. Operating from Chelmsford to Cambridge, we have established ourselves as a reliable and efficient construction partner in the region. Our commitment to excellence is reflected in the quality of our work and the satisfaction of our clients. At GRS Building Services, we understand that your project is not just a construction endeavor; it's a vision brought to life. That's why we take pride in our ability to deliver results that not only meet but exceed your expectations. With a focus on brickwork, blockwork, extensions, substructures, landscaping, and fencing, GRS Building Services is the solution for those seeking a dependable and skilled construction partner.

We are small independently owned joinery. We use only the highest quality materials, incorporating Accoya, the world's leading high tech timber and install our timber box sash windows to exacting standards. We also offer a full joinery and design services.

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Reviewed by Georgina on 8/12/2015

We haven't actually started the job yet but we've seen examples of his work and are in no doubt that he will be doing a good job. Very friendly and professional and got back to us with a quote and information extremely quickly.

Welcome to Sparks fabrication where we combine over 15 years of industry expertise with a commitment to exceptional customer service. We provide free quotations, ensuring transparency and informed decision-making for all projects. Our focus on reliability, trustworthiness, and quality of work sets us apart, with references available to attest to our dedication. Specializing in grills, gates, railings, bespoke furniture, staircases, mezzanine floors, and more, we pride ourselves on bringing your vision to life. Contact us today to experience craftsmanship and service of the highest standard.

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Reviewed by Nicholas on 11/4/2024

Reliable and excellent work.

CCL Roofing consists of 6-9 roofers with years of experience in the industry. Able to carry out a range of services which consists of flat roofing & pitched roofing.

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Reviewed by James on 19/8/2024

Did a good job manufacturing and installing some coping on my extension and cladding round an external window frame.

Here at Bluecrest Property Developments , we are dedicated to providing top-notch roofing and building services that exceed our customers expectations. With years of experience and a team of expertly trained professionals that pride ourselves on customer’s satisfaction, we understand the importance of top quality work let it be a small roof repair or a large new roof or let it be a small repointing repair or a new wall build.

I have been in this business for 10 years. I am a very hard worker at what I do. I love putting a smile on my customers faces by doing a good job for them.

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Reviewed by Lyn on 21/5/2025

Very happy with service received Attended 1.5 hours after I spoke to him and did the gardens there and then Will definitely use again

Vanish Waste Management is a comprehensive waste management service dedicated to providing efficient, sustainable, and reliable solutions for residential, commercial, and industrial waste disposal for 3 years. Our services include curbside pickup, emergency same day call outs , hazardous waste disposal, and tailored waste management plans designed to meet the unique needs of our clients. With a commitment to punctuality and reliability, we ensure that your waste is collected on time, every time, allowing you to focus on what matters most to you.Experience the difference of working with a waste management partner that truly cares about the environment and your community.

Well established family run building company based in London,we have built a strong relationships with well known building societies across the London due to our quality and trustworthy service High quality levels of work in major building projects,we specialise in planning and design,project management and general building services

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Reviewed by john on 9/11/2025

5 star

With over 20 years combined in the building trade and serving the whole of the UK, we are a family run business that offers all types of general building maintenance. We are specialists in all types of conservatory roof replacements, repairs, leaks, cleaning and insulation keeping your conservatory warm in the winter and cool in the summer, saving huge amounts on energy/heating costs. We also offer loft insulation and boarding

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Reviewed by Stephen on 24/6/2025

LR great company to work with, excellent service from start to finish, Lee and his sons did a excellent job at a competitive price, would have no problem recommending them to anyone.

About SPD Roofing & Building - SPD Roofing & Building is a professional and reliable roofing company with unrivalled expertise in the industry. Drawing on over 10 years’ experience, we specialise in all types of roofing repairs and maintenance, providing every customer with outstanding quality service and a high-quality finish designed to last. Whether you are looking for a full re-roof, minor repairs, or general maintenance, we apply the same high standards to every project, no matter how big or small. We believe that everyone deserves a great service that will protect their property for many years to come. Our roofing contractors offer a comprehensive range of services, including: • Domestic & Commercial Work • Replacement Joists & Rafters • New Roofs & Re-roofs • Roof Repairs • Chimney Work • Lead Work • Lead Roofs • Flat Roofs • Felt Roofs • Pitched Roofs • Garage & Extension Roofs • Fascias, Soffits & Guttering • UPVC • Slates • Tiles • Repointing • Ventilation • Stone Tar & Chip Coatings • Moss Removal & Roof Cleaning • EPDM / Rubber Roofing • Fibreglass Roofing • General Building Work Our skilled team is always on hand to help with any queries you may have. We are happy to offer free advice, along with non-obligatory quotes and estimates.

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Reviewed by Andrea on 4/12/2025

We are a family run business, that pride ourselves in making your roof stand out from the rest. Tom has over 15years of experience in tiling, slating lead work, flat roofs and zinc work No job is too big or small.

Hi there I'm a Scottish Painter&Decorator living in Barking Essex past 12 years..I am qualified to City& Guilds Advanced Craft Certificate standard.I have been Painting & Decorating over 30 years.Im very easy going and trustworthy and leave a nice job.

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Reviewed by Lorraine on 6/2/2026

First class service from start to finish. Painted hallway to a fantastic standard. Paintwork ceiling and walls look stunning. Professional and efficient. Highly recommend. Started as decorators left as friends. Two lovely guys.

SKY KITCHENS AND BEDROOMS LIMITED , Bespoke made to measure height,width and depth,18mm carcasses side,top,bottom and back. color matched carcasses. Once your furniture has been fitted it is guaranteed for 10 years. Free no obligation estimate

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Reviewed by H on 28/1/2026

100% would recommend Sky Kitchens & Bedrooms. From start to finish, Inder was very friendly, knowledgeable and keen to help me find the best solution possible. His quote was very competitive for my fitted wardrobe, offering customisations other businesses weren’t suggesting and his team were excellent. He’s very skilled and went above and beyond for my satisfaction. A genuine pleasure to do business with!

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

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