Extension Builders in Letchworth Garden City

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (4 reviews)

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Some of our top rated extension builders in Letchworth Garden City

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DRJ Homeimprovements
Sponsored
Rating: 4.9 out of 5
Extension Builder in Letchworth Garden City
DRJ Home Improvements Ltd provides reliable and trustworthy service completed to a high level of standards because I believe you don't need to move, Just improve. I have got 20 years experience in the building trade satisfying clients. We are a team that will get your job done from start to completion.
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Latest review:
Extensions- 17 Mar 2026
I would not use Dan again. Complete lack of expertise on certain aspects of this build resulting in a lot of stress for me. Failure to gain necessary permissions despite Dan's reassurances at the time. An error on Dan's part related in the entrance to my property having to become much smaller than I needed. Disappointed overall.
Zak longthorpe
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I’ve been in the building industry for 12 years. Originally building/ renovating different projects in wales Untill I moved to London 7 years ago. Up until recently I was a project manager for a large brickwork company building projects across central London. I have recently bought a house and moved to letchworth so now relocating my work. with a close team of guys we ensure all work is done to an extremely high standard. Would be happy to give a quote. reliable!
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Latest review:
Extensions- 1 Jan 2022
Definitely the best tradesperson I have ever had to deal with. Zak took great pride in every stage of the job and advised on changes required as the job progressed. Nothing was too much trouble. The quality of the work was really good and we are really pleased with the completed job. We would highly recommend Zak to anyone requiring building work done. Additionally the price quoted and paid was extremely competitive. Zak is also very easy to deal with and always has a friendly face to brighten your day.
M. A. B. S. Building Solutions
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hi Me business is based on the trust and 20 years experience in trades, they are small and large projects. Mainly Bathrooms and kitchens, electric and plumbing also I am very involved in the projects entrusted to me. I value quality of me services. Me pride is the satisfaction of me client. I can say that because I am straight person and I love that what I do. Thank you for watching me, MABS Maintenance And Building Solutions
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Latest review:
Plumbing- 12 Feb 2021
I could not have refurbished our new home and been able to move in without Marcin and his help. I think he joined us in December and he is still helping with small things etc. He is A GENIUS. He came in to knock through a wall joining a small room with the kitchen but he has since just done everything! He is a master builder PLUS PLUS PLUS. He has built us a beautiful bathroom. Sorted out the plumbing and heating with a new boiler. Plastered, done electrical work, put up blinds, doors, windows, you name it. He has amazing ideas. He is friendly and very communicative and reliable. It is just a pleasure to have him around and being part of the team.
ELCarpentry
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We specialise in bespoke carpentry , home extensions,renovations,commercial projects and property maintenance
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Latest review:
Conversions - General- 17 Jun 2025
Project was a little more difficult than I think was expected - but persisted and got it done. Thanks!
CJ Property Improvements
Rating: 4.7 out of 5
Extension Builder in Letchworth Garden City
Here at CJ Property Improvement we pride ourselves on being reliable, friendly and clean. Our most used tool is the vacuum cleaner, it is always the first tool off the van and the last back on. We ensure every job we carry out is to the highest standard and to your complete satisfaction, no matter how big or small. Although we are a new company we have plenty of experience. Below is just a sample of the work we have carried out since we opened in 2017. There are plenty more pictures to see
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Latest review:
Bricklaying- 8 Oct 2022
Good comms, quick and tidy work.
J Howard Construction
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
J Howard Construction covers all aspect of building work to a high standard and Customer satisfaction is our main priority. We offer free no obligation quotes and advice.
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Latest review:
Joinery & Cabinet Making- 23 Oct 2023
I was excited about working with Josh as he had such great feedback from other clients, and he did not disappoint. Excellent communication right from the off and very clear about what was involved, so was able to provide a detailed quote all of which made sense. He thought through what was needed in advance so there were no surprises or delays on the day. His price was reasonable although I’d have been happy to pay a bit over the odds for someone who didn’t mess me around, as has sadly so often been my experience in the past. He arrived on time to do the work, did it, cleaned up - and even did a few extra little jobs for me around the house (putting up shelves and a guitar hanger) while waiting for the paint to dry. A lovely guy, clearly skilled at what he does, and definitely someone I’ll be calling on again. Don’t hesitate to hire him!
Evanescence builders
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Evanescence Builders is a proud, family-run business with over 10+ years experience in the trade. Dedicated to delivering exceptional craftsmanship and a personal touch to every project. We treat every job as if it were our own, striving for perfection from start to finish, providing guarantees on all work completed and fully insured. So give us a call to get your free quote today!
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Latest review:
Bricklaying- 26 May 2026
Nice guy, did a nice job. Responded quickly and communicated well.
Eddy Brickwork
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
With 10 years of experience in bricklaying, I provide top-quality craftsmanship for both residential and commercial projects. From building sturdy foundations to creating stunning brick facades, my work combines precision and durability. I take pride in delivering results that meet your exact specifications and exceed your expectations. Whether you need new construction, repairs, or custom brickwork, I'm dedicated to providing reliable and efficient service. Let's bring your vision to life with expert bricklaying skills!
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Latest review:
Bricklaying- 4 May 2026
Eddy came to do the job as arranged but unfortunately it turned out to be a much bigger job than planned. We agreed a new price and the work was completed a few days later to a very high standard. Eddy was very helpful and he and his colleagues worked hard and cleared up afterwards. Excellent job thanks.
Alpine Building Solutions
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Alpine Building Solutions is a well established, reliable and trustworthy Company with over 30 years experience in the Building Trade. Our quality of workmanship and client satisfaction is always our main priority. We offer a professional and complete all round service from planning to completion.
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Latest review:
Extensions- 10 May 2020
Dave and his team built a side extension over our existing garage and converted our garage into a TV room. The project went well with no real issues and was very efficient. The build and finish was done to high standard and the site was kept tidy. Dave would question the designs if he thought something could be done better. I would definitely recommend Dave for any building projects.
LV Building Solutions Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We are a family run business, working hard and to high standards to give us a great reputation as quality builders. We specialize in the following: • Extensions • Garage and loft conversions • Full refurbs • Kitchens and bathrooms • All carpentry work We are Fully insured, trustworthy and reliable.
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Latest review:
Hard Flooring- 4 Jun 2026
LV went above and beyond to work on my job. I didn't all the materials needed for the job. He went out of his way to get them and completed the job. Very friendly as well My floor looks immaculate. I would hire him again and recommend to family and friends.
JR Brickwork
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I take on work covering all aspects of bricklaying, repointing, patio laying and any general maintenance work.
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Latest review:
Jack was punctual and professional and finished the work to a high standard. I will happily be recommending him to friends and family.
BBS Building Services Limited
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We understand how important your home is to you and your family and how important it is to have the perfect environment for your lifestyle. That's why we are putting the customer at the heart of what we do. We plan, prepare and taking care of the detail while heading towards your goal – a beautifully crafted home. BBS Building Services offers exceptional quality, bespoke customer service, the expertise of the skilled team and outstanding works practice.
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Latest review:
Extensions- 6 Nov 2020
Side Extension- Utility & Cloakroom Matthew & his team gave a first class service from initial meetings to finish build Matthew was always available to discuss issues, proved suggestions & solutions The team were professional throughout the build, they were a pleasure to have in the house The finish build is first class, to a high standard. I would have no hesitation in recommending Matthew’s services - Thanks Matt
Jay T building
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I have 10 years experience with building work.
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Latest review:
Bathroom Fitting- 31 May 2026
VERY HAPPY. Jay was very efficient in his work. While the the quality of his work was very good, what surprised me was the speed with which he completed it. The cost was very reasonable too.
Rosewood Contracting Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
At Rosewood Contracting, we specialise in high end residential and listed buildings. Our team is dedicated to ensuring the successful completion of every project we undertake, with a focus on quality craftsmanship, attention to detail, and timely delivery.
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Latest review:
High-quality work on site, no issues with building control, all signed off straight away with no remedials. Would use again on future projects.
SJM Bespoke Carpentry & Construction
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hi, my name is Stuart Milner and I am a carpenter by trade with over 25 years experience and have taken on many roles during that time from site foreman to project manager and have picked up many different skills and knowledge that cover most of the building industry. I would like to say I am precise in my way of working and always work with the Customer through the different processes to make sure we arrive at the result they want.
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Latest review:
Extensions- 18 Jul 2023
We used Stuart to carry out some alterations to our kitchen, convert our garage & construct a link between the two. From the moment Stuart quoted us for the work I was struck by how diligent he was, coming back to discuss his quote & being very clear in everything he had included & equally anything that wasn't. We were delighted that his diligence & care extended throughout the project & to the work that he did, he clearly cared that everything was done correctly, as if it were his own home. He put thought into everything he did & the sequencing of the work, making sure there was as little disruption to us as was possible. He also communicated to us throughout about his plan and any issues he encountered. We are thrilled with the end result, Stuarts work is of a high standard & competitively priced too, I couldn't recommend him highly enough.
imsbuilders
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I have over 40 years of experience in the industry. I am a fully qualified bricklayer and also a fully qualified carpenter. I have had the pleasure of constructing many extensions new builds and home renovations for my clients, ensuring the whole project runs smoothly and safely
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Latest review:
Carpentry- 28 Apr 2024
Great experience. Bill was very nice, knowledgable and quickly fixed an issue with our unsupported floorboards, for excellent value too. Would definitely recommend!
Reece hewett
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I have been in the building trade over 8 years since leaving school.After working for a few builders over the years ive decided its time to venture out on my own. I cover all areas of the building trade, plastering, drylining and overskimming, plumbing, flooring, brickwork and much more. I carry out all my work to a very high standard and take pride in what I do.
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Latest review:
Plastering- 28 Nov 2020
Great experience with Reece. Responded quickly to my job, came to quote in a couple of days and did a great job on our garden room. Super polite and tidy. Top chap 👍🏼

Top rated Extension Builders

Our Extension Builders in Letchworth Garden City, are rated 4 out of 5 based on 4 reviews from customers like you.

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

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Letchworth Garden City for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Letchworth Garden City who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Letchworth Garden City extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Letchworth Garden City?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Letchworth Garden City will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Letchworth Garden City extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Letchworth Garden City home extension project is likely to cost.

Find extension builders in Letchworth Garden City with MyBuilder

Hiring the right extension builder in Letchworth Garden City with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Letchworth Garden City extension builders. Once your job is live, we’ll share it with home extension builders in Letchworth Garden City who can express their interest.

Step 2: Compare different extension builders in Letchworth Garden City

When you start receiving interest, review profiles of local Letchworth Garden City extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Letchworth Garden City extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Letchworth Garden City, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Letchworth Garden City extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Letchworth Garden City extension builder before hiring?

Before hiring an extension builder in Letchworth Garden City or extension building company in Letchworth Garden City, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Letchworth Garden City?

An extension builder in Letchworth Garden City should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Letchworth Garden City extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Letchworth Garden City?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Letchworth Garden City extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Letchworth Garden City extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Letchworth Garden City

Can an extension builder in Letchworth Garden City help with planning permission?

Yes, many extension builders in Letchworth Garden City can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Letchworth Garden City handle everything from design to construction?

Many Letchworth Garden City extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Letchworth Garden City help with materials and finishes?

Yes, most extension builders in Letchworth Garden City can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.