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There are 2231 Builders in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

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GPS plastering & Building Services provides the very best in professional specialist damp proofing /soundproofing wand plastering services across The North herts & beds and surrounding areas. With over 25 years experience across both domestic and commercial sectors, from small households to new builds to large office facilities, GPS Plastering & Building Services are specialists in damp proofing and plastering services, as well as general building works. As a well established company with an impeccable reputation, we understand the value of client satisfaction. From deploying the highest quality products to maintaining our first class cleanliness promise of always leaving your premises clean, free of damage and staining, we believe GPS Plastering & Building Services takes care of your building. So contact us for your next project no matter how big or small.

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Reviewed by Anthony on 24/5/2025

Gordonj of GPS Plastering did a great job . He was very punctual, polite and left the house probably cleaner than it was before he arrived. I would recommend him.

Midlands Maintenance and Construction is a reliable company that specializes in a wide range of building projects, with a strong focus on high-quality plastering and rendering. Based in Wellingborough, they handle both internal and external work, including plastering, plasterboarding, and various rendering finishes. The business prides itself on its experienced and skilled tradesmen who deliver exceptional workmanship and meticulous attention to detail on every project. They work closely with clients, architects, and engineers to ensure a professional finish, whether it's for a small repair or a large-scale renovation.

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Reviewed by Mary on 12/3/2025

The Green Machine will provide you with professional high standards of workmanship with many years of experience and many happy customers so choose us with confidence.

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Reviewed by gavin on 30/8/2025

Fantastic job from Ben. He cleared out and cleaned up the entire back. Built the shed, put on back gate. he cleared up all the rubbish. I couldn't begin to do the job he did for me. Definitely use again!!

Hello, my name is Anthony, but you can call me Tony, I've been working for myself now for just over Ten year's I've only just joined this site. Hence, no ratings trying to recover all old photos of my old phone, which i broke in lock down.ive never needed to advertise work found me.. now everything is online, so I wanted to give this site a try,I don't dress to impress I dress to work...I'm 48 my to kids are now 28,30 two lovely grandkids Tony

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Reviewed by Jason on 16/8/2025

we are a company offering all building works, extensions, lofts, bespoke bathrooms and kitchens to suite your taste. We use only the highest quality products and materials for your job. Only the best design, materials and price will always be provided.

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Reviewed by Anna on 9/5/2024

John Makkar and his incredible team have made the experience of renovating our whole 5 bedroomed house an absolute pleasure ! The enthusiasm and professionalism is outstanding as well as the quality of work and his excellent communication. I can’t rate John and the team highly enough! His ideas are brilliant and creative- always a problem solver and he deeply cares. Thank you so much John and the team!

At KAPA construction , we take pride in building strong foundations—both in our craftsmanship and in our relationships with clients. With years of experience in bricklaying and masonry, we specialize in high-quality brickwork for residential, commercial, and industrial projects. Our skilled team delivers precision, durability, and aesthetic excellence in every job, whether it’s constructing new homes, restoring historic buildings, or creating custom brick features. We use only the best materials and techniques to ensure long-lasting results. From small repairs to large-scale developments, KAPA construction is committed to excellence, reliability, and customer satisfaction. Let’s build something great together. Contact us today to discuss your project!

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Reviewed by Grace on 4/4/2025

Im very happy with their service. After we agreed for the price, they came next day to fix the wall and also I'm very happy with the price. I will recommend to everyone who is looking to have changes on your property. Very friendly and hardworking people. Definitely I will use thir service in my future.

Painter& Decorator with over 15 years experience in UK .All aspects of interior / exterior painting and decorating. Commercial ,domestic ,new construction , luxury flats. Different kind of paints oil base ,water base, varnishing, wallpaper hanging .

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Reviewed by Geri on 20/6/2025

Excellent Handyman Service-Painting & Mold Prevention! Stilyan did ceiling work in my rented home, and I couldn’t be happier with the results. The job involved painting and applying a mold prevention dye to a section of the living room ceiling and the bathroom ceiling. From start to finish, the process was smooth and professional. He arrived on time, brought all the necessary materials, and worked efficiently while keeping everything clean and tidy. The patience and respect towards my landlady was great too

Local joinery company specialising in staircases, windows, doors and bespoke made media units. Ability to manufacture out of all materials including softwood, oak and various other hardwoods.

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Reviewed by mohammed on 25/2/2025

Excellent service

Hello. My names Luke. From Allsop construction. I am a carpenter and all round general builder, we are friendly and happy to help with any problem you may have. Looking forward to hearing from you. Many thanks

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Reviewed by Alistair on 3/4/2025

Luke did a garage conversion for us and we are very pleased. He and his trades were professional, considerate, tidy and very efficient. Luke communicated with us and was completely trustworthy. AND the job he quoted was good value and did not change. He ended up doing some extra (paid) bits for us on request. We would highly recommend and use him again.

Innov8 Projects is a forward-thinking construction company dedicated to delivering high-quality, modern, and innovative building solutions. With a focus on craftsmanship, efficiency, and sustainability, we bring visionary projects to life—whether residential, commercial, or bespoke. Our commitment to excellence ensures every build stands the test of time. Building the Future Today

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Reviewed by Philip on 16/9/2024

At present, our work is still in its early stages, rectifying 90 years worth of previously bodged jobs. The CBA Team have been excellent so far, they arrive on time, work hard and do things the right way. I will be using them again once this project completes.

We are a period/listed property restoration company. We specialise in traditional materials and methods. - Lime rendering & plastering with horse hair. - Lime pointing. - Masonry repairs. - Paint removal using the Thermatech hot steam cleaning system. - Brick/stone feature walls. - lime wash - Breathable Painting. - lime plaster/render We often work with conservation officers from the authorities to ensure our works are of the highest standards.

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Reviewed by Alexandra on 10/5/2025

Marcus and his team did a great job for us reseating our period porch stone paving and repointing with lime mortar, including matching a reclaimed stone slab to replace a broken one

THE ONLY CHOICE FOR YOUR HOUSE!!! We work with homeowners and their partners to solve the unique challenges of managing house improvments.

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Reviewed by Andre on 19/11/2024

Prestige Construction recently renovated four bathrooms in our home to an outstanding modern standard. Flavius and his team showcased exceptional professionalism, delivering impeccable workmanship without compromising quality. Flavius remained calm and solution-focused throughout, ensuring a stress-free experience. His attention to detail and ability to handle challenges seamlessly resulted in a flawless transformation. We are thrilled with the results and highly recommend them for top-tier renovations!

Djc Contractors has been in business for 15 years, we have carried out many, extension, loft conversions, new build and total refurbishments in the London,Hertfordshire and Essex areas. We have many previous clients that we would be more than happy to show off are work.

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Reviewed by Theresa on 8/3/2023

Living 100 miles from the job, I needed a reliable contractor I felt I could trust. David and his team more than lived up to my expectations. He renovated a complete one bedroom flat from re wire, re plumb, new boiler bathroom, kitchen, flooring, fitted cupboards etc the list goes on. All work was carried out by qualified trades people and certificates of work issued where necessary. He started the job when he said he would, worked long hours and most importantly finished ON TIME, ON BUDGET.

I am an Interior Designer / Project Manager with a great team of builders who are skilled and possess good, positive, can-do type of attitude. We are in the construction industry since 2002 with residential & commercial projects in the UK and other European countries. We take projects from kitchen refurbishment to full house refurbishment or extensions, loft converssions & office building in the back yard. Our values are: RESPECT HONESTY EFFICIENCY Do not hesitate to contact us for your project! We understand the importance of purchasing a home or improving it hence will help you go through a smooth, great experience.

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Reviewed by eric on 8/5/2023

Very professional, competent and reliable builders. I highly recommend A'tudori and I will definitely use them again for any future projects.

Do not pay attention that we are new on this website...the experience is ours! We do: rendering, painting and decorating, floors and carpeting, woodwork,tiling and flooring, plumbing, windows and doors, brickwork, electrics.

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Reviewed by Ellisha on 3/4/2025

I recently had my bathroom floor tiles replaced. Chris was tidy, efficient and communication was transparent throughout. Happy with the end result and would recommend Chris to others.

We can offer with confidence a professional and innovative service . Regardless of size or difficulty we will fulfill and exceed all criteria within your budget and time allocated.

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Reviewed by PATRICK on 4/8/2024

I am the proprietor of riverside property services. we are a family run business since 1973.We specialise in all types of specialist removal,building works and all types of roofing works undertaken Licences to take and carry all types of rubbish from household to bi hazard and asbestos. We specialise in all types of demolition works private and commercial. We are a reliable company with offices based in Surrey and covering all areas. No obligation free quotation for all works. Fully insured tradesmen

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Reviewed by Lyndsey on 28/7/2025

Excellent communication, competitive quote. Steven arrived on time, was courteous and professional. He removed a garage and asbestos roof. Work was completed and cleared. Excellent service. Thank you Steven.

At Surrey Hills Extend & Renovate we promise Quality and Craftsmanship. We take pride in delivering superior quality in every detail of our work, ensuring long-lasting and visually appealing results. We have a Customer-Centric Approach and your satisfaction is our top priority. We work closely with you, understanding your needs and preferences, to create spaces that truly reflect your vision.

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Reviewed by Julia on 27/6/2025

Very good and profesional

At DavTom, we're all about upgrading your home experience through top-notch doors and windows. With over 10 years in the business, our small, dedicated team—supported by reliable subcontractors—ensures quality and craftsmanship in every project. We don’t just install; we transform spaces, offering a variety of high-quality options to suit your style. Our services include: Doors: Whether you’re drawn to the timeless appeal of traditional front doors, the space-saving charm of bi-fold doors, or the seamless integration of sliding doors, we have the perfect solution to suit your taste and lifestyle. Skylight: Transform your interiors with the magic of natural light. Skylights are designed to bring the beauty of the outdoors inside, creating a bright and airy atmosphere that enhances your home’s ambiance. Conservatories: Meticulously designed to seamlessly integrate with your home, our conservatories offer a tranquil retreat, connecting you with the outdoors while adding a touch of timeless elegance to your property. Glazing: Our double and triple glazing options not only enhance insulation but also minimise noise, creating a serene and energy-efficient environment. Outdoor spaces: Upgrade your backyard with our all-in-one service, covering pergolas, sheds, and decking. Enjoy the cosy charm of pergolas, practical storage with our sheds, and the perfect gathering spot with our decking options. Repair Service: Cover everything from hinges and handles to glazing issues, ensuring your windows and doors remain in peak condition. Trust us for swift and effective solutions that stand the test of time. Let us redefine the way you experience your home!

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Reviewed by Christina on 9/9/2024

Hi, This is Alphatec ltd. We have specialised team to take all types of building jobs. We are specialised in Bathroom fitting, Plumbing , electric , new builds & renovations

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Reviewed by Katy on 10/6/2025

Inder did a very good job of upgrading our upstairs bathroom and installing a toilet downstairs. He worked tirelessly and was very punctual. Great on communication too!

Here at P&D building solutions we have years of experience in all aspects of paving, and roofing, and understand the importance of using the best materials, working to the highest standards and fulfilling the needs of our customers. Our attention to detail, affordable prices and great results are just some of the reasons our customers choose our paving and roofing, services. No deposits required, and we offer a full 7 year Guarantee on all work

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Reviewed by Judith on 28/2/2025

Patrick returned today to clear the mess left behind by the previous workers. He also improved a wooden barrier that was too small. This was a refurb job rather tha new project and I thin k he found it challenging.

Previously known by E.Z.P.Z. Construction Ltd. This company was founded in 2022 and was named after my late father and my newborn son. With over (now) 15 years experience, I started work with my father as well as working for other firms. The content you see on my page are all from current or previous projects.

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Reviewed by David on 24/8/2023

Excellent workmanship on both the fence and the patio. The team were very prompt and gave a competitive quote and helpfully sources materials and guided our choices. Very pleased to have chosen them and we would definitely have the back for further work. We'd recommend them.

Good afternoon we due all types of work : Carpentry , Tiling , Woodfloor , Painting , Plastering - Render . Can you contact me for free quotes. Thank you

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Reviewed by Tony on 21/8/2025

OUTSTANDING WORK I'm absolutely thrilled with the fantastic work done by Cad Building Limited . After an unfortunate experience we’ve been lucky having Dan and his team completing the project in under 2 weeks, which was impressive, and the quality of work is top-notch. They put my idea to life and their professionalism, attention to detail, and communication were exceptional. Highly recommend them for any building project

We deal with insurance claims handling, reinstatement and repairs to any type of reinstatement including damage caused by escape of water, flood and fire damaged properties. We also completed works involving: Non-evasive leak detection. Insurance surveying / Schedules. Damp mapping and drying. Refurbishment and repairs to residential commercial buildings. Replacement kitchens and bathrooms. Plumbing. Plastering. Roofing. Painting and decorating. Asbestos surveys and removal. Carpentry. We are also a member of the The British Damage Management Association (BDMA)

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Reviewed by John on 4/3/2023

Shield Maintenance A1. Consist of multi skilled tradesmen with a vast amount of experience. From carpenters plumbers roofers, electrians,groundwork. We cover all services in the building trade and take pride in our work and service that we provide.

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Reviewed by Hubert on 30/7/2024

Really positive experience overall so far.

Whether for commercial or domestic projects, we provide a friendly and professional service that includes all aspects of design, planning, construction, building repair and maintenance. With extensive experience in the construction industry, our team of fully qualified tradesmen guarantees a high standard of workmanship. We are completely committed to every project we undertake and all are properly managed to keep writhing budget and in schedule. We are punctual, reliable, tidy and and the good relationships we build with customers means a high level of repeat business and recommendations. Facebook & Instagram unico develop

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Reviewed by Paul on 3/11/2022

Too Inexperienced

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Reviewed by adam on 20/5/2023

Unprofessional

CB ONE Solution Ltd is specialise in Waste Removal-Demolition-Strip Out-Builder Waste-Commercial Waste-Garden Waste-Office Waste,Friendly and professional with all the costumers,experience over 5 years

Latest homeowner review

Reviewed by brian on 10/3/2018

V pleased with work V pleasant man

Step up plastering is based in Dunstable. We specialise in all aspects of plastering and offer reliable, respectable and professional plastering services throughout Bedfordshire, Buckinghamshire and hertfordshire. At Step up plastering we pride ourselves with being clean & tidy and have an eye for detail to ensure your latest project or home improvement meets your requirements. We are fairly new to this site so don’t have much feedback at present but references can be given if required.

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Reviewed by Sarah on 12/8/2019

Mathew did a really good job, on what was a very tricky project due to the poor state of my walls. Would certainly recommend Step up Plastering.

AL Home Improvements we provide good quality work and service at a very affordable price. services range from extensions, loft conversions to house refurbishments no job to small. professional reliable experienced we get the job done at a good price for more information please visit our website tlhomeimprovements

Latest homeowner review

Reviewed by Sophie on 15/3/2019

Very happy with my tiling. Thank you so much

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Reviewed by David on 25/2/2012

Job was a new uPVC window for a bathroom. It was quoted for and fitted very efficiently and exactly to spec.

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Reviewed by Ian on 26/9/2008

I'd highly recommend John. He managed our expectations well from the start - turned up on time to quote, delivered a quote the next day as promised, provided references when we asked for them (who backed up that he's a good builder), found a space in his schedule quickly to fit our job in, did it quickly, efficiently and leaving no mess afterwards. And charged us a reasonable amount for the work. Couldn't speak more highly of him, and will definitely ask him to quote on our extension when we progress with the planning.

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Reviewed by Danny on 23/6/2012

Wes is a top bloke. He did a good job,worked hard and tidied up after himself. The price was reasonable also. He fitted a front door for us. I would recommend him highly.

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Reviewed by KEVIN on 17/1/2011

We have been very pleased with all aspects of Chris's work, the job was started on time and completed as scheduled. The en suite and downstairs loo being done before Christmas and the Main Family bathroom in the New Year. Any Snags were overcome and a high quaility finish in all rooms bringing our bathrooms upto date. Chris arrived when he said he would often 7.30 in the morning and even Saturdays. We would recommend Chris to family and friends without question, and have him back in the future - Fiona Kevin and Family

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Reviewed by lucy on 4/10/2009

Very quick,efficient, if not a little bit steep financially.

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Reviewed by Warren on 31/8/2008

Excellent job. Excellent Value. 2 really nice guys as well. Would recommend them with no reservations at all and they will do you a superb job.

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Reviewed by andrew on 3/4/2012

Very reliable, honest, skilled and reasonably priced. I would highly recomend him

Latest homeowner review

Reviewed by Brian on 10/7/2012

Very reliable and exemplary wirkmanship

Welcome to KP building contractors Ltd trading as KP Projects

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Reviewed by sunny on 11/6/2018

Great workmanship. I had previously hired Kam about two years ago for a loft conversion and extension at one of my other property. I'd lost his contact details. Very honest man. Thanks Rated People!

DJM Building Contractors are reliable, friendly and a family run business and we are always willing to go the extra mile to keep our customers happy We have been in business for over 10 years and can assist with anything to do with your property We have full public liability insurance up to £2 Million for my clients peace of mind and for there records We work with a wide range of estate agents and property management companies and assist there day to day needs so will be more than happy to assist yours

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Reviewed by Ben on 3/4/2021

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We are a small landscaping and maintenance company reliable and friendly and willing to go the extra mile :)

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Reviewed by Beatrice on 16/7/2021

Very good service

My name is Andrei , I’m a sole trade with vast experience on joinery and carpentry work . I’m in construction industry for more then 10 years and all the skills I learn over the years lead me to this point where I can deliver a high quality standards for all my work .

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Reviewed by Nigel on 15/4/2022

Andrei cut and fitted an interior door. Very happy with the job, the price and the fact he was able to do the job the day after I posted it.

I love the quality

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Reviewed by Steven on 20/2/2023

George was really helpful. All complete to a good finish. Thanks!

Hello, and welcome to our Rated people profile, We are also members of Checkatrade if you’d like to take a look at some of our reviews! Guardian Roofing Ltd are a family run company with over 50 years’ experience in the roofing industry. Our company is a very proud member of the Confederation of Roofing Contractors. All roofing team members are trained to ensure a professional roofing service. Guardian Roofing Ltd offer free Quotations are fully insured, uniformed staff. Guardian Roofing Ltd offer the following services: New Roofs. • Pitched Slate roofing. • Pitched Tiled Roofing. • Flat roofing systems such as GRP, EPDM and bitumen felt. Roof Repairs. •Missing/Broken tile or slate •Ridge pointing •Timber repairs •Felt repairs •Flat roof repairs •Lead work •Chimney repairs •Gutter repairs We take on all roof related projects, so if you can’t see something above please call us to ask. By calling Guardian Roofing Ltd you are on the way to securing your roof for years to come and ensuring the well-being of your property. It shouldn’t be a case of ‘let’s put it off until next year!’. Sometimes when it comes to the weather, tomorrow is late enough.

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Reviewed by Neville on 15/11/2022

Cleaned gutter and moss replaceced 5 broken tiles, price charge price quoted cleaned up after gave quoted for my shed to be built( explained best way to do it)

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Reviewed by Emma on 24/9/2019

Excellent, would recommend.

Construction & Interior Fit Out Specialist

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Reviewed by Shahnaz on 24/8/2019

Really impressed. Pleasant, reliable and prompt as was his colleague. They worked efficiently and I would happily recommend them to family and friends.

We offer a friendly, reliable bricklaying service, covering Herts, Essex and Beds. We offer competively priced quotes in high quality brickwork .

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Reviewed by S on 13/9/2013

Dan and his colleague built a rather large red brick wall for me which I am very pleased with. They were fast, tidy and efficient. They were also able to give advise on the best way to finish off the top of the wall. Secondly, they used the right mix of cement and lime to continue with the same colour mortar. They were also able to calculate exactly the quantity of bricks, cement etc. I would need so therefore there was very little wastage. I would definitely use them again.

A customer focused builder who provides a professional, reliable old fashioned service. FULLY INSURED & ALL WORK GUARANTEED. call & i will be happy for you to take a look at my work,

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Reviewed by Phil on 18/3/2020

Efficient service, reasonable price. Quality of work was very good.

I am a carpenter who also does handyman jobs, I do fit blinds, either you can supply them or I can do supply and fit.

Latest homeowner review

Reviewed by Sebastian on 19/12/2020

Job well done and great communication from start to finish.

I have been in rhe building trade for over 45 years as carpenter/joiner, foreman carpenter and site manager until i branch out in building extensions/ loft and garage conversions, refurbs ect. Since 1986.

Latest homeowner review

Reviewed by Moise on 6/12/2021

Robert and his team were excellent. Work done to a great standard

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Recently completed jobs

Here's what's been happening in and around your area

Moving internal...

Hi, we are looking widen our kichen by moving an internal wall or via extension into the patio outside/and conservatory. We will need a new kitchen...

Roof Tiles, Plaster & External...

1) Replace 5 - 10 broken and missing plain clay roof tiles - There is a leak in the roof. 2) Repair of medium sized settlement cracks to the rear...

Repair Areas that need to be...

Repair Areas that need to be repaired: wall / ceiling Work relates to the following room(s): bathroom, dining room, kitchen 17ft x9ft ceiling...

put on chimney cowl

I need a chimney cowl to stop birds coming down the chimney but I want to be able to use the chimney as I have a gas fire

Repair Replace bathroom...

Repair bathroom plasterboard ceilings; Plaster and paint; Fit LED downlighters; Fit extractor fans - including isolator switch to both main and...

A sizable two story extension...

A sizable two story extension to the rear of the property, with a further extension over a side garage and a complete reconfiguration of the existing...

Size of extension: 4 rooms...

Size of extension: 4 rooms Height of extension: 2 floors Room(s) to be in the extension: bathroom, bedroom(s), kitchen, toilet Piling...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: flooring, Remove existing floor coverings and dispose of and lift off floorboards to remove and...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: I need a wall taken down Work relates to the following room(s): kitchen Need a wall taken...

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 1 floor Room(s) to be in the extension: bedroom(s), lounge/living room There is an brick shed...

How our service works

  1. Create a job - it's free

    We'll connect you with the right tradespeople, from over 30 different trades.

  2. Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  3. Check ratings

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  5. Job done

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