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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.

JDS Construction is a specialist in domestic interior renovations across the UK. We focus on high-quality home improvement projects, including kitchen and bathroom refurbishments, flooring, painting, plastering, and full room makeovers. Our team is known for attention to detail, clean workmanship, and customer-friendly service. Whether it’s a small update or a full renovation, JDS transforms living spaces with care and professionalism.

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Reviewed by Aaliyah on 24/3/2025

I’m absolutely delighted with the work Cristian did in putting up my summerhouse. From start to finish, he was professional, efficient, and highly skilled. The attention to detail was excellent, and he made sure everything was sturdy and well-finished. He also kept the work area tidy and completed the job on time. I would highly recommend Cristian to anyone looking for reliable and quality craftsmanship. Thank you for a job well done!

I have been in the home improvement market for over 35 years starting out in design, in the bespoke luxury kitchen industry, in most cases in the London areas. Which very quickly evolved onto building Orangeries and extensions to accommodate my Clients dream kitchen. As time went by I found my projects growing to encompass single story and double extensions, loft conversions, wine cellars, pool houses including the swimming pool! Then more recently outdoor kitchens. I have worked on large projects and small whatever the remit,my customers always get 100% from me from inception to conclusion of the project,I help & liaise with design/project management where needed. I work on site every day so am on hand to deal with architects , planning & Building control ,I also make a mean cup of tea! I work with all trades that I bring to the project,listen to customers from design right through to build to ensuring they get the space that they envisioned plus more! Hope to see you soon.

Welcome to DB ARK With over 10 years of experience, we specialise in creating bathrooms, bespoke furniture and kitchens that combine style, functionality, and quality craftsmanship. Whether you’re looking for a modern kitchen upgrade or a luxurious bathroom transformation, we deliver tailored solutions to suit your needs and budget. Our services include: •Full bathrooms and kitchen renovations •Custom cabinetry and fittings •Tiling, flooring, and lighting installation •Plumbing work •Wet rooms and walk-in showers •Bespoke furniture •Carpentry work We pride ourselves on delivering high-quality finishes, attention to detail, and excellent customer service. Check out our portfolio and customer reviews to see how we’ve helped clients turn their vision into reality.

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Reviewed by Richard on 27/1/2025

D Building Ltd is a leader in Rendering and Plastering services. Brickwork repointing With more than 17 years of experience we offer the highest quality decorating, renovation and refurbishment services to domestic and commercial properties.Our priority is to ensure the customer are left satisfied with our service we provide We can offer a 24/7 service always ready to make customers feel comfortable You want to save energy get your house insulated throughout Greater London

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Reviewed by Helen on 6/2/2024

Great service, fast response and flexible on price. Really pleased with the quality of the finish.

ERA Construction Solutions Ltd WHO ARE WE? The story of our team, 16 years and going really strong: For a decade, Era Construction has been leading the way in all aspects of luxury design and build. Whether you're looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment. We also complete home renovations, roofing work and bespoke projects. Our ethos is quality-first craftsmanship for the very best in residential design and build in London. From small touch-ups to full property refurbishment - we make a neat job of it all. WHY OUR BUILDING COMPANY? When it comes to the quality and care that we put into every project, we think of ourselves as one of the leading building companies in London. This means that, as the right builder, we have the team, the expertise and the commitment to a high quality that sets us apart. 1. Fully insured with Public and Employers Liability, Professional Indemnity, Contractors All Risk and high-risk basement works. 2. We offer a 15-year guarantee on all of our structural building work. Proficiency only uses the highest quality building materials ensuring everything is built to standard and will last. 3. We have a large team of office-based staff, including a dedicated project manager providing you with peace of mind and security throughout your project.

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Reviewed by Shanti on 27/7/2024

The job is still going on not completed yet I will rate when the bathroom renovation is completed

I offer a range of home/garden repair needs. I am trustworthy and very reliable, always get the job done to my customers satisfaction. There are no hidden charges. Quotes can be given after viewing of location, where we can discuss your needs.

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Reviewed by martin on 19/3/2019

Guys came on time and completely dug up and re-turfed my garden in one day as they said they would They were competitively priced compared to other people I had spoken to as well Really friendly, really helpful and i will be using them again when I need more work in my garden done

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.

R&B refurbishment ltd For a decade, a Proficiency building company based in London has led all aspects of construction, luxury design and build. Whether you're looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment, our ethos is quality-first craftsmanship for the very best in residential design and build in London. When it comes to the quality and care that we put into every project, we think of ourselves as one of the leading building companies in London. This means that, as the right builder, we have the team, the expertise and the commitment to a high quality that sets us apart. Fully insured with Public and Employers Liability, Professional Indemnity, Contractors All Risk and high-risk basement works. We offer a 15-year guarantee on all of our structural building work. Proficiency only uses the highest quality building materials ensuring everything is built to standard and will last.

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Reviewed by Andrew on 17/4/2025

Had to get police involved after death threat from "Ali" if that is his real name. Fired him from the job for appalling work, not showing up and excuse after excuse. AVOID.

Building -bathroom refurbishment -floor tiles -wood floor -laminate floor -carpentry -plastering -painting -patio paving

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Reviewed by Merton on 16/3/2024

Roofing Direct is an expanding company with over 30 years' experience, operating throughout London, Surrey and the Surrounding areas. The family owned and run business specialsing in all aspects of Roofing, Building and Landscaping Projects. WE ARE YOUR LOCAL NEW ROOF SPECIALISTS WITH 20 -25 YEAR GUARANTEES ISSUED WITH EVERY NEW ROOF INSTALLED.

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Reviewed by Phillip on 31/7/2024

Arrived for the quote on time. Work started as first mentioned with scaffolding. Roof work delayed one day due to weather. Roof completed within 36 hours from start to finish. Neighbours all commented on a good job. All wanted contact details. Good communication throughout, I knew what was going on at all times. Recommending to family in area.

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.

We are a cleaning service that is London-based business offering a wide range of cleaning services for homes and offices throughout all London boroughs and anywhere within the M25. We provide an exellent service as our customer have shown that. Any more info please contact us.

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Reviewed by Michael on 29/3/2025

Hire cancelled as tradesman unable to attend premises at pre agreed time to complete work. Customer service could be significantly improved by keeping client informed by direct phone call as opposed to via Whatsapp message.

Rushmore Roofing is a local independent roofing company with over 33 years of experience. We are a family business that takes pride in our workmanship. We specialise in roofing and have hundreds of satisfied customers across the south-east who have requested our services, from replacing a broken tile to installing a roof window or complete re-roofing. We provide our services at an affordable price without cutting corners, using only the very best tools and equipment. Please note that we do not employ any sub contractors nor any bodies claiming to be sister companies and it will only ever be myself that comes to quote your job. We pride ourselves on a first class workmanship and do not settle for second best. We offer 24/7 aftercare so you do not have to worry! Please get in touch today! We also offer 24hr Emergency service

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Reviewed by Margaret on 16/4/2025

Daniel ltd Team is built on traditional values, which is shared by all of my employees. You will receive the best service and quality in every phase of your project. Making the Ordinary, Extraordinary.

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Reviewed by Jane on 20/3/2025

Daniel and team did a superb job in a tight time frame. Excellent work.

Residential and commercial building contractor specialising in kitchens, bathrooms and full renovations. With over 12 years experience in the building industry our attention to detail is paramount.

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Reviewed by David on 23/7/2024

Very quick, well priced and they did a great job. Thank you

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 David on 16/1/2025

Well so far Robbie has been great honest and straight to the point not getting job done till March but very happy with him not many like him.

Windowell is not your typical glazing company. Why? Because we genuinely care about our clients and the quality of work that we do. We specialise in all things glazing and offer a range of products designed to suit every requirement and budget. Whether you are looking for straight-forward PVC windows or you would like to discuss some architectural glazing please allow us the opportunity to provide a quote where we will demonstrate why Windowell is the perfect partner for you. No matter your glazing requirements, Windowell can offer you the solution. Our product range includes: - PVC Windows & Doors - Aluminium Windows & Doors - Timber Windows & Doors - Composite Doors - Bifold Doors - Sliding Doors (including new slim sightline range!) - Porches & Conservatories - Extensions & Sunrooms - Cupolas & Roof Lanterns - Velux Windows - Glass Balustrades & Composite Decking - Garage Conversions - Commercial Glazing & Curtain Walling So if you have an upcoming project - no matter how big or small - please allow us the chance to provide you with a quotation. We know you won't be disappointed.

Ernest Stelmach established the company after extensive research into the flooring market and particular wood flooring . In general the quality of cheap imports and lack of home grown products mean there was an opportunity the develop high quality hardwood flooring jointly with interior designers and architects. Flooring Services Suitability& Preparation The survey will outline all wood flooring fittings costs based on: • the state of the subfloor • if any furniture needs to be moved • the state of any skirting boards and architraves •if an old carpet has be removed • the levels of humidity and moisture Also providing outstanding floor Sanding and restoration services all over London . • sanding &renovation -floorboards -herringbone floor / chevron -gap filling -stairs -hearth removal finishing -lacquer - hard wax oil -staining -paiting -floor maintenance -garden decking

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Reviewed by Victoria on 23/12/2024

Ernest made a lovely job of our floors, he was super helpful and made sure that we were happy with the colour and the finish! Would definitely recommend!

An accomplished business where customer needs comes first. We are a dependable team with 25 years experience. Our aim is to attain positive communication with our customers as well as providing reasonable prices for all our clientele. Our specialties expand to various qualities, and we are profoundly able in achieving and carrying out plastering and rendering, painting, boiler installations, unvented cylinders, gas safe checks, bathroom renovations and all home improvements. Collectively, our main goal is to ensure our customer is content and that our work reaches their full expectations.

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Reviewed by Chandrakant on 14/4/2025

An appointment was rearranged for Lewis and his Adrian to come and give me a quote for my driveway. They arrived on time.

we do a wide range of works. in the past ive been fitting kitchens and Bathrooms for B.Q Howdens and wren's directly so theres not much i dont know about kitchens bathroom fitting I also can supply and fit Granit or Quartz worktops. We take great pride in are work and refurbishe to a high quality finish and we do tiling, all types of wood laminate and vinyl coverings, in the summer we take on landscaping decking slabs fencing to much to mention look forward to meeting you and working for you.

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Reviewed by ROGER on 27/6/2024

Pasa and Chris carried out a refurb of our kitchen this week. New quartz worktops, new sink, hobs, tiling etc. All carried out without fuss in less than three days. Work done to very high standard in a clean and tidy manner. Kept us fully informed throughout of work being done and any issues arising for our agreement. Can't praise Pasa and his workmates highly enough and fully recomend their work. Very well done. Would not hesitate to use Pasa again.

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