The quick way to find a local Builder in Welwyn

Post your job for free. Get quotes. Read reviews.

Over 10,000 rated tradespeople
are ready to help you get your job done

Over 3 million happy homeowners
have found a quality tradesperson

Over 1 million ratings
with 88,000 5* ratings in the last 12 months

Join our group of happy customers

Thousands of 5 star reviews

Read real reviews from customers about their service experiences.

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.

About Our Company: With over 10 years of experience, Hoxha Unity Electrics is built on a foundation of integrity, honesty, and exceptional service. We deliver reliable electrical solutions for homes and businesses, including smart home systems and energy-efficient designs. Our commitment to quality and transparency ensures that every project is completed to the highest standards, fostering long-term trust with our clients. At Hoxha Unity Electrics, we don’t just power your spaces we build lasting connections.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Simon on 30/1/2025

They turned up on time,the workmanship was very impressive,had 2 light fittings fixed and installed new kitchen ceiling put in,and new ??thermostat fitted for the heating.They left know mess,very polite and professional service.Highly recommended

We are at your disposal to help you with Leo pop construction property maintenance Ltd We arrange tiling works, gardens, paving and other interior paint?ing and exterior jobs .

We are a small well established and experienced team,offering a full range of construction and landscape gardening services. No job is too big or too small, with our expertise ensuring that each project is properly organised and efficiently completed to the highest possible standards.We cover all types of construction and garden work. We can transform blank or waste land into a beautiful new garden.Our very competitive prices can save your money,time and effort. All work is carried out by our professional and fully insured team to the highest standards,using quality materials.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ali on 16/4/2025

Adrian and team did a fantastic job on my back garden from it looking like a building site initially! And they did it in less than 1 and a half days, truly amazing! As well as this, the team also fitted in additions to what they thought would look and be better for me overall. Great work, would highly recommend! Am also going to ask for my front garden to be done also.

We are a reliable, friendly company specialising in home improvements and property maintenance. Fully insured, we are committed to providing an excellent service to our customers. Our services include; General property maintenance Painting & Decorating Driveways Fencing Landscaping Mowing and Hedge cutting services And more.. We look forward to hearing from you to discuss your requirements. Contact us today for a free, no obligation quote!

Latest homeowner review
full starfull star
Reviewed by Kylie-ann on 10/4/2025

All keen to quote within hours of posting the job. Exchanged messages and wanted to book him for a quote. Sent the videos of the pipe as requested and then got deafed. Messaged to ask if it was something he could do or not. He apologised and said he'd review the video and come back to me...that was 24th March...now on 10th April and still not replied. Total time waster

Experienced multi tradesman specialising in Gas boiler installation ,boiler servicing and landlord gas safety certification and plumbing, I also carry out the following: •Bathroom/kitchen installation •Emergency work (plumbing gas water electric installation) •Handyman in big or small jobs including painting and decorating •Lighting works •All aspect of plumbing and heating Portfolio and customer feedback from completed work can be shown. Online Free quotations. Covid guidelines followed with strict enforcement.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Mark on 9/4/2025

Fast and efficient, very happy

I am builder I have been working from last 9 years in this building industry And trying to provide quality work to british standard I can do any kind of building job If you need my any help Feel free to contact me

Latest homeowner review
full starfull star
Reviewed by shana on 30/1/2025

AVOID ! At all cost, honestly getting flooring done is so expensive and this company came ruined my new purchase herringbone flooring by laying it completely wrong! They don’t know what they are doing and have no skill. They are messy dust everywhere my walls sofa cushions, curtains everything is a mess. I stopped them and told them not to come back after paying an initial £600 wish I never paid anything now going to open a dispute. Awful is me being nice avoid these people!

At First Class Decorators we focus on providing you with a high quality service for high expectations . With over 10 years of experience & 5star Rated People Member Our knowledge will help you achieve the results that you want for your home, office or other type of buildings. We specialise in interior & exterior decoration, wallpaper and other stylish wall designs. Just ask us for anything really. We will always ensure the best finishes and first class customer service experience. Our reviews from happy customers speak for themselves, we won’t disappoint . Alain our professional Team leader painter and decorator , will be happy to assist you with any inquiries via WhatsApp, email or mobile .

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by sabrina on 18/4/2025

Alain did a fantastic job fixing the paintwork in our bathroom (ceiling and walls). He was able to advise on the correct paint to use and worked super quickly over the 2 days he was with us. He left the area clean and tidy when finished. I would definitely use him again and recommend him. Thank you!

We are a family run company which specializes in flat roofing, all chimney repairs Loose bricks, re-pointing work, roof repairs, lead work, leaking roofs, pitched roof's   Replacing Chimney Caps Repairing flat roofs etc  We have experience on private and commercial contracts, Learning avast experience in the roofing trade  there are very few problems we haven't come across before and would be happy to give you a free, no obligation quote for fixing any problems big or small.  We are fully insured for your peace of mind. We pride ourselves on our reputation. Most jobs we take before and after  photos so you can see exactly what we are doing We pride ourselves on customer satisfaction For a free no obligation quotation and advice please feel free to call. Kind regards,Andrey We can provide the following services: Flat roof repairs and replacement GRP fibreglass roofing  Firestone rubber roofing Guttering cleaned, repaired or replaced Ridges repointed  Fascia’s, soffits & guttering Exterior painting All roof repairs Pitched roofing Roof leaks  Repointing  New roofs  Moss removal  All Chimney repairs  Replacing broken tiles slates etc We are also skilled in services such as: Shed roofs re-felting guttering cleaning service. High pressure cleaning roofs walls, etc. All exterior maintenance Bricklaying Wall repairs  Cleaning facias and soffits Andrey ,free quotation

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Sam on 28/3/2025

Andrey was prompt to quote and get started. We had a few jobs, for us Andrey completed some roof work, knocking down part of a wall and building new roof to fill in tiles to our existing roof. The job looks very smart and Andreys guys were happy to finish off exactly to my requirements. Site left nice and tidy. Highly recommended.

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.

Latest homeowner review
full starfull starfull starfull starfull star
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.

Building Contractor & Commercial Builder in Radlett, St Albans & Surrounding Areas | S.T. Contracts Welcome to S.T. Contracts, your reliable domestic building contractor and commercial builder with a proud history of excellence since 2009. As a family-run business based in Watford, we bring over 50 years of combined industry experience to every project, serving clients across Watford, Radlett, St Albans and surrounding areas with professionally executed property refurbishments, solar panel installations, garden rooms, garage conversions, kitchens and bathrooms and more. For high-value projects, we also offer nationwide coverage. Our company motto, “A company built on its reputation,” reflects our unwavering commitment to delivering top-notch results on time and within budget. We are fully insured and proud members of the Federation of Master Builders (FMB) and the Guild of Master Craftsmen, with all trades provided in-house. Our team of fully trained and qualified professionals, with certifications such as City & Guilds in plastering and SMSTS, are all DBS checked to ensure safety and reliability.

Hello and welcome to Three Counties Fencing and Decking. We cover all aspects of fencing for domestic and commercial customers We also cover a wide variety of other projects including •Decking •Gates •Landscaping •Paths And Patios •Garden Rooms •Brick Work •Drainage And much more Please feel free to have a look through our profile to see past jobs and the customers reviews. We are fully insured and have over 12+ years experience. We look forward to hearing from you. Kind Regards Paul Warren Three Counties Fencing And Decking

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Lee on 5/12/2024

We're both really happy with the work Paul and his team did. He was really knowledgeable and did a great tidy job. Arrived when he said he would. Finished up on time and left everything nice and tidy. Exactly the kind of contractor you want to find when doing a job like this. Would absolutely work with him again. Great work.

Here at Prestige building contractors we cater for an array of different services from waste removal to full renovations and extensions or even maintenance for your existing property. Please don’t hesitate to contact us for a free friendly quotation or any assistance.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Clare on 11/4/2025

SV Heating & Plumbing is a trusted plumbing service provider with 27 years of industry experience. Specializing in both private and commercial projects, we deliver top-quality workmanship tailored to meet the unique needs of each client. From the heart of North London to Stevenage, we offer reliable and efficient solutions with a commitment to excellence. Gas safe qualified and fully insured we bring expertise in all aspects of plumbing and heating, ensuring the highest safety and quality standards. Operating as a Limited company , we also have the capacity to bring in additional skilled professionals for larger projects. With 24/7 availability, SV Heating & Plumbing is here to provide prompt and professional service whenever you need it most. Whether it's a routine repair, a complex installation, or an urgent emergency, we are ready to help. Trust us to keep your plumbing and heating systems running smoothly.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by nigel on 10/3/2025

Vio and Sam kept me informed of what work I needed easy to communicate with and the job was done quickly and efficiently I wouldn't hesitate to recommend this company to anyone

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

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Merton on 16/3/2024

We aim to be a world class Construction Company providing efficient affordable, sustainable, cost effective services of highest level of quality. We undertake all projects, big or small and specialise in major renovations including; Extensions – Loft Conversions – Restoration & Alterations Garage Conversions – Landscaping & Patios – General Building Work Renovating a property can bring a new lease of life to your home with the feeling that you live somewhere new without having moved. Whether it's a major remodel by knocking down walls and building new ones to change the entire look of your home, to simple and subtle updates and upgrades like new floors, new doors, a modern new kitchen or a stunning bathroom, using modern materials we can help you create your ideal living space.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Alvaro on 8/3/2025

Dragos was very efficient, reliable and flexible, 100% would recommend

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.

Over 15 years in trade Fully qualified gold ECS CARD Managers black card ESC CARD Very honest and reasonable prices

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Emmanuel on 17/4/2025

Miles of MJB Electrical is coming to do the job tomorrow. I will be in a better position to do a rating afterwards.

Our family has been mastering our trade for over 25 years, with two generations currently involved. We take pride in offering extensive knowledge and assistance to our clients, covering a wide range of areas when it comes to renovations and refurbishments. From the start of the project to its final completion, we offer help, guidance, advice, and assistance to create the perfect interior and exterior. Our services include comprehensive flooring solutions such as tiling, laminate installations, underfloor heating, and more. We also specialize in drywall/plasterboard installations, including unique shapes with hidden lights, cornices, and wallpapering. We are experts in every aspect of painting and decorating, and our true passion lies in creating bespoke, one-of-a-kind decorative plastering designs that offer limitless possibilities. From silky-smooth, polished, or shiny finishes to bold pearly effects, rough 3D-looking designs, and much more. We can even create custom-made paintings on almost any surface, including walls, ceilings, and mirrors. You can trust us to bring your vision to life with our exceptional craftsmanship and attention to detail.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by James on 16/2/2025

we are experience refurbishment contractors. we are reputable and reliable builders, established since 2010 and over 20years experience in building trade. using our skill and materials, we are eager to ensure that our customers are completely satisfied.

Latest homeowner review
full starfull starfull starfull star
Reviewed by Vinoth on 5/3/2025

Did not received the quote / response after sent the details.

I’m a professional experienced roofer and tiler with 18 years of work behind me covering multiple projects around various sections of the household. My services are: Roofing, ie (guttering, fascia and soffits, roof cleans De moss tiles or slate. Chimney rebuilding, pointing, weather shielding. Bathroom tiler, walls, floor, etc. Plastering Fencing Demolition Flooring and external building works.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Steve on 13/4/2024

Excellent service from Mo. Very prompt, and job done quickly and without any fuss. Would recommend!

Post your job for free

app-icon

Get our app for homeowners

  • Send messages and get notifications from tradespeople
  • Add photos to get more accurate quotes
  • View tradespeople's profiles