Builders in Welwyn Garden City

Name: Builder
Brand: MyBuilder
SKU: builder
Rating: 4.7 (197 reviews)

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Some of our top rated builders in Welwyn Garden City

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Alter Artistry ltd
Rating: 5 out of 5
Builder in Welwyn Garden City
We are a group of established Coving and Cornice experts based in near central London. We have a combined experience of over 100 years within the industry and an extensive background in Classical Art - employing qualified sculptors. This has giving us a natural ability to provide flare to living spaces; achieving great aesthetic internally and externally.
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Latest review:
Restoration & Refurbishment- 14 Nov 2022
Very professional guys Came in done a great job Coving was installed to a great standard Would use again
Cneg builders ltd
Rating: 5 out of 5
Builder in Welwyn Garden City
CNEG are Insulation and Render Specialists. Trustmark registered and approved by The Insulation Assurance (The IAA). Installing hundreds of External Wall Insulation across London and surrounding Counties, you can be assured of a perfect finish every time.
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Latest review:
Insulation- 20 Feb 2022
The loft insulation in my detached property was old and poorly laid. I also had a lot of rubbish in the loft which needed removing. Jon was very professional through out the process. He gave me a competitive quote, did a video call to see the job (because of the distance) and agreed to remove old insulation and rubbish, vacuum the whole loft and replace with high quality 300mm insulation. All the workers were really polite and courteous and did a really good quality job. Would strongly recommend Jon and team.
HNL Construction Limited
Rating: 5 out of 5
Builder in Welwyn Garden City
Home improvement company. Experience since 2005.Our job is our passion.Let us make Your dream project.Every job its important to us from small to big. We do: -kitchen -bathroom -loft conversion -extension -refurbischments -electric -plumbing -gardening …and many more
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Latest review:
Conversions - General- 23 Mar 2026
Pawel and his team are great - got them in for a few things now, from damp repair, knocking through an internal brick wall, moving a fuse box, installing a wood floor. Always good workmanship, easy comms and decent value! Have recommended to a few friends who are equally pleased.
RF Roofing and Fencing
Rating: 1 out of 5
Builder in Welwyn Garden City
We are a professional company that provides one stop solution for Roofing and Fencing services.
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Latest review:
Fencing- 12 Sep 2024
DO NOT HIRE RENNATO. Rennato is the worst builder I've hired for work in my whole life. I have never been insulted and threatened by someone's demeanour before. He appeared to be intoxicated every time he came for work and one day when we discussed his payment and prices had been agreed on and settled, he went home and started calling/sending me abusive messages telling me that he will trespass into my house and dump rubbish into it. I have picture evidence of his messages. Save yourself the stress and hire someone else instead.
Garnet Construction Ltd
Rating: 4 out of 5
Builder in Welwyn Garden City
Garnet Construction has over 10 years' experience in the industry and specialise in loft conversions, all types of extensions and complete renovations. Priority is given to the design and construction of all our projects with a unique obsession to strive for perfection.
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Latest review:
Extensions- 18 Sep 2019
To start off with the job went reasonably well - we were happy with the workers and the progress. but when we neared completion the work slowed up we waited 3 months for a response from Jordan. we had an issue where his plasterer hid the plumbing access in the wall. - This cost us £500 to sort and re-decorate so we came to an agreement that this was fine and at the time i presumed that Jordan was going to sort out the building control. so we then chased and chased but obviously since he had his money he wasn't interested he answered the phone and hung up. so we called building control and there are 2 small bits to fix which are all due to his work not being up to scratch. obviously i will be paying out for this - so please be careful when using him and dont pay him until you have all of the documents as he will not resolve any issues after being paid. i have had 2 previous building projects and this was by far the worst experience going. avoid dont use him thanks
WMG Building Services Ltd
Rating: 5 out of 5
Builder in Welwyn Garden City
WMG Building Services Ltd is a small building company with 15 years of experience in general building. We cover a wide range of building services to London and surrounding areas, undertaking various projects from kitchen and bathroom installations, plastering and decorating, joinery and tiling to large, full house renovations, extensions, loft conversions, garden houses, garages and structural work.
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Latest review:
Wojciech is a great builder. His work is first class, he puts his heart to his work, he is always courteous and very trustworthy. His prices are also very fair for the quality of the work he produces. The first project Wojciech worked for me was a total refurb of a flat and it was at the recommendation from a colleague. I was so happy with the work that for my second project (a total refurb of a terrace house) I gave it to him without tender and I have wholeheartedly recommended him to my friends and colleagues.
Lcd
Rating: 1 out of 5
Builder in Welwyn Garden City
Hy I am cris more 15 years experience in carpentry and building work
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Latest review:
Joinery & Cabinet Making- 8 Jan 2024
Absolute cow boy 🤬 Don’t even think of hiring So many faults Door not closing Plinth boards cut wrong So much more disgrace
B&K
Rating: 5 out of 5
Builder in Welwyn Garden City
B.K. Building & Renovation is a family-run building and renovation business based in South Harrow. We provide reliable, high-quality work across extensions, brickwork, blockwork, plastering, painting and decorating, tiling, flooring and general property improvements. We take pride in clean workmanship, clear communication and attention to detail from start to finish. Whether it is an internal renovation, plastering and finishing work, brickwork, flooring or a larger building project, we aim to complete every job safely, neatly and to a professional standard. Customers choose us for our reliable service, respectful approach, tidy working habits and commitment to quality. We treat every property with care and work hard to deliver results our customers are happy to recommend.
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Latest review:
Benjamin and his team did a fantastic job on my property building a 6m by 6m Extension walls in only 2 days, it was done ahead of time and on budget. He was very conscientious and nothing was to much trouble. Done all the pictures of each step along the way needed for Building Control Guy. The quality and workmanship was first class and I would definitely recommend him for all types of building/refurbishment work.”
Alex
Rating: 5 out of 5
Builder in Welwyn Garden City
Hi I offer good quality work which includes general construction works, painting interior, exterior, walls and ceiling repair and wood work I also offer handy man jobs, decking installation and repair,groundwork jobs.
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Latest review:
Painting & Decorating- 6 Jul 2026
Excellent communication and decorating done to a high standard. The rooms look beautiful and Alex was very clear about what needed to be done at all stages. When bits of the job changed, he revised the bill down in keeping with the fact less work was needed.
P O'Brien Builders London LTD
No reviews yet
Builder in Welwyn Garden City
P O’Brien Builders is a trusted, family-run building company with decades of experience delivering high-quality construction services across London. We specialise in home renovations, extensions, loft conversions, and new builds, offering a reliable and professional service from start to finish. Our reputation is built on quality workmanship, attention to detail, and clear communication throughout every project. Whether it’s a small upgrade or a full renovation, we approach every job with the same level of care and commitment, ensuring results that are built to last. As a family business, we take pride in what we do. With the next generation now involved, we combine traditional values with a modern approach to building, giving our clients confidence in both the process and the final result.
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The Carpentry Group LTD
Rating: 4.7 out of 5
Builder in Welwyn Garden City
We are a carpentry and Building company that pride ourselves on our very high quality standards of work, we offer a very friendly and reliable service. We are both fully qualified carpenters. We can offer all aspects of carpentry works both domestic and commercial from big jobs to small jobs, nothing is a problem with our can do attitude.
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Latest review:
Hard Flooring- 16 Jan 2023
Very disappointed with the quality of the work, expecting higher standard from Connor who came across as polite and supposedly experienced. Chipped laminated pieces of flooring were fitted and of no concern to Connor. On request, he came back the next day without arguing to replace the couple of planks damaged (the surface to cover wasn't very large!). Too much gap that even skirting could not cover in some area. Skirting not neatly glued/attached to the wall. Finishing metallic cover to the stairs not fixed in place properly. VAT added to the flooring bought with already VAT added, which on request Connor removed. By that point I didn't have the heart to ask him to come back and redo a proper job. We had more job in mind but didn't pursue it with Connor.
Acme Lofts & Extensions Ltd
No reviews yet
Builder in Welwyn Garden City
Acme Lofts & Extensions specialises in the construction of Loft Conversions & Domestic Extensions. Based in Enfield, covering Greater London & Herts, we have over 30yrs experience & expertise in this industry. Our team of skilled tradesmen, qualified technical engineers, professional architects & surveyors will create the highest quality & most desirable living space for your project. All work is guaranteed, insured, vetted & monitored.
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Milad gharehdaghi
Rating: 5 out of 5
Builder in Welwyn Garden City
I have 15 years of experience working in the Port Authority as a crane repairman and welder. I am an experienced person and a complete handyman. And now I own the company Mil Technic.
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Latest review:
Handyman- 20 Apr 2026
Efficient and effective. Would recommend.
AJ Carpentery
No reviews yet
Builder in Welwyn Garden City
Hertfordshire based carpenter part of a small team of skilled trade's people able to complete electrical,plumbing and plastering to the highest of standards all aspects of carpentry undertaken.
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GB Buildstore Hertfordshire Limited
No reviews yet
Builder in Welwyn Garden City
GB Buildstore Hertfordshire Limited is a Stevenage based New Home Builder company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with new builds, message us so we can assist you and arrange a quote.
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MSG DESIGN LTD
Rating: 5 out of 5
Builder in Welwyn Garden City
Hello I am Simion, the proud owner of Msg Design Ltd , A little about us With many happy and returning customers over the last 7 years, you can be sure of being well looked after. Our aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I work with a small team of trusted colleagues, who communicate and work together well. Our customers are accustomed the outstanding quality of projects we complete, by sourcing quality materials with experienced installers we create truly bespoke masterpieces lasting our customers many years. 2 year guarantees are included as standard on all completed work. Availability We are always contactable via phone throughout the week, including evenings and weekends. If for any reason you are unable to contact us, please send a text message or email. Thank you for taking the time to consider our company’s profile, I look forward to hearing from you. Msg Design Ltd
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Latest review:
Carpentry- 7 Jun 2026
Top carpenter. Will definitely be using again. Neat and great craftmanship.

4.7

Top rated Builders

Our Builders in Welwyn Garden City, are rated 4.7 out of 5 based on 197 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local builders in Welwyn Garden City?

If you’re looking for a builder in Welwyn Garden City, MyBuilder is here to help with a directory of verified tradespeople that offer a wide range of building services.

Whether you need help with a small building project or a complete home renovation, you can start obtaining quotes from Welwyn Garden City building contractors on MyBuilder within a few clicks.

Services offered by Builders in Welwyn Garden City include:

Home extensions
Loft or room conversions
Garage installations or repairs
Building or repairing garden walls
Installing dividing walls
Building structures such as annexes or outhouses

Post your job for free on MyBuilder and describe the work you need. Then, builders in Welwyn Garden City who are interested will get in touch. Review profiles, see photos of their previous work, read customer feedback, and get quotes, all before deciding who to hire!

What are the hourly rates of builders in Welwyn Garden City?

Most builders in Welwyn Garden City charge a project fee rather than an hourly rate. For example, average building costs in Welwyn Garden City might look like this:

A standard home extension could cost around £30,000
Building a single garage with a pitched roof may range from £40,000 to £50,000
Constructing a new 3-bedroom house can run upwards of £300,000 depending on specifications and location

Project fees are usually defined by various factors, including:

The builder’s expertise, location and experience
The materials used
The size and scope of the project
How urgently the work is required

If you want to talk to a building contractor in Welwyn Garden City and request a quote, just post your job on MyBuilder today, and let local builders get in touch to discuss the job and how much it may cost.

Find a builder in Welwyn Garden City with MyBuilder

Save the scrolling and endless hours of research and let MyBuilder do the heavy lifting when it comes to finding a builder near you. If you need to hire a builder in Welwyn Garden City, just follow these simple steps:

Step 1: Post your building job on MyBuilder

Whether you need a small renovation, an extension, or a complete new build, simply post your job on MyBuilder to find building contractors and companies in Welwyn Garden City.

Once your job is posted, it will be shared with our directory of MyBuilder verified builders in Welwyn Garden City who can express their interest.

Step 2: Compare different builders in Welwyn Garden City

When Welwyn Garden City builders respond to your job post, take the time to compare their profiles, previous work, and customer reviews.

You can also ask them about their availability and request quotes before making your decision.

Step 3: Hire Welwyn Garden City builders with confidence

Now you’ve got the information you need, you can make a confident decision about which building contractor in Welwyn Garden City to hire!

On MyBuilder, every Welwyn Garden City builder that registers is verified through checks of ID documentation, company details, and skills assessments. This can help to give you peace of mind when hiring a builder for your project.

What to ask a Welwyn Garden City builder before hiring?

Hiring a builder is a big step to making your house a home, and before hiring one in Welwyn Garden City, it’s important to ask some key questions to help you find the right fit for your project:

What building qualifications do you hold?

Ask your Welwyn Garden City builder about any professional memberships or construction-related qualifications they have, such as NVQs or Level 2/3 diplomas in building trades. Proof of their health and safety training, like a CSCS card, is also useful to get.

Will all work comply with building regulations and planning permissions?

Make sure your builder is ready to meet all relevant building regulations and standards in Welwyn Garden City, throughout your project. They should explain how they’ll communicate with building control and approvals, too.

Have you completed similar projects in Welwyn Garden City before?

Understanding if a builder in Welwyn Garden City has worked on projects like yours can give insight into their familiarity with challenges specific to your type of build and location. It’s also quick to view images of a builder’s past works on their MyBuilder profile.

What is the estimated timescale to complete the project?

Ask your Welwyn Garden City builder for a detailed schedule. This should include important milestones in your project, like site preparation, foundation completion, structural framing, roofing, installation of utilities, interior finishes, and final inspections.

Do you provide guarantees or warranties for your work? Most building contractors and companies in Welwyn Garden City provide warranties covering their workmanship and materials for a specified period, offering reassurance that issues will be addressed post-project.

If you are still unsure on whether a builder is right for you, you can read this detailed guide on how to hire a new build specialist with all the tips and tricks you may need to find the right building professional in Welwyn Garden City!

FAQ: Common questions about builders in Welwyn Garden City

What types of building projects do you handle in Welwyn Garden City?

Builders in Welwyn Garden City typically undertake a range of projects, from home extensions and loft conversions to full new builds and renovations. It’s important to confirm that your builder has experience with the kind of work your project requires to ensure a smooth process.

Will you manage the entire building project in Welwyn Garden City, including subcontractors and scheduling?

Yes, many builders in Welwyn Garden City coordinate the whole project, managing subcontractors and scheduling all phases of work. This allows for streamlined communication and ensures that all trades work together efficiently, reducing delays and misunderstandings.

How do you ensure compliance with Welwyn Garden City building regulations and inspections?

A builder in Welwyn Garden City should be up to date with building regulations and arrange all necessary inspections and approvals for your project. They manage compliance from start to finish, helping avoid legal or safety issues.

Are building contractors in Welwyn Garden City insured?

Welwyn Garden City builders should hold public liability insurance and employer liability insurance. This protects you from financial risk should accidents or damage occur during construction.

Can builders in Welwyn Garden City provide a clear, detailed quote including materials, labour, and VAT?

A detailed quote breaks down the cost of labour, materials, permits, and other expenses. This transparency allows you to understand where your money is going and helps prevent unexpected costs during the build. It’s important to request a written quote from prospective Welwyn Garden City building contractors on MyBuilder before you proceed with hiring.