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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R Moy Builders LTD
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Experienced builder of a family run business covering a wide range of domestic and commercial work, from handyman jobs to full builds. Reliable and reasonable with recommendations from many happy customers. Plastering Extensions Refurbs Bathrooms/kichens Painting and decorating Conversions Established for over 30 years
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Latest review:
Handyman- 6 Jan 2025
Swift response & fixed fault straight away. Excellent customer service would highly recommend.
KS Construction Group
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We are young, energetic and creative.Our extensive experience and know-how enable us to not only do the right job for you but also to avoid common pitfalls in order to maximize your satisfaction. We pride ourselves on listening to our customers and making sure they are 100% satisfied when a job is completed. We ensure quality workmanship on every project we undertake. We have a great customer service record and enjoy leaving our great work to speak for itself as our best advert.
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Latest review:
Restoration & Refurbishment- 8 Dec 2025
They came to completely refurbish a dated property. The works included full redecoration with some plastering, new flooring, new radiators, some electrical and plumbing work, repositioning of doors, and installing a new kitchen. The whole team are professional, polite, quiet, helpful and reliable, and they were able to stick to the agreed timeline. They managed the whole project to a tight timetable with no delays, all along with good communication and easy resolution of any issues that arose. We thoroughly recommend KS Construction and will be asking for them to return for further work in the garden in the Spring.
Sd brickwork and home improvements
New on MyBuilder
Extension Builder in Letchworth Garden City
Hi I’m Scott from SD Brickwork and Home improvement’s Ltd. I have 25 years experience in brickwork and home improvements projects, including patios and artificial grass installation. I pride myself on delivering quality craftsmanship, whether it’s a garden wall , pointing repair or extension. I focus on reliability, attention to detail, ensuring customer satisfaction. Let me know what’s on your mind and we’re get it done right for you.
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PWD CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Letchworth Garden City
I established my business to meet the needs of homeowners looking for skilled and qualified tradesmen that put trust at the top of their requirements. From small jobs to large extensions and landscaping we can help to make your property dreams come true. Money back guarantees offered.
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Latest review:
Extensions- 26 Nov 2020
Paul was absolutely great to work with on our project. I would have no hesitations in hiring him and his team again, which we plan to do. He was great as the plans changed, and when unexpected things cropped up he communicated with us really clearly and promptly. The quality of the work is really high, and even as there have been (really) minor snags to deal with after he's been great about these too.
Linear Carpentry & Building
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hi, I'm James – with over 15 years of experience in the carpentry and building trade. Based in Much Hadham, Hertfordshire, we take on projects of all sizes, delivering high-quality craftsmanship with attention to detail. We proudly serve clients across Hertfordshire, Essex, and Cambridgeshire, covering any job within a 30-mile radius. Whether it's a small renovation or a full-scale build, we're here to help bring your vision to life.
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Latest review:
James managed our kitchen extension project and took ownership of all carpentry, and we couldn’t have been happier with the outcome. The project was delivered smoothly and to a high standard, and James was a pleasure to have working at our home. We especially loved the outdoor pergola / cinema area and hot tub decking he built too, which was technically quite challenging and looks absolutely fantastic. I would absolutely recommend Linear Carpentry to friends - and have done!
Guga Home Improvement
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hello, My name is Ervin.I’m a general builder who has been in the building industry for more than 15 years. offers a comprehensive range of services including:roofing, brickwork, pointing ,painting and decorating,driveway and patios,waterproofing,renovation. Excellent quality job with no regrets or any issues. Looking forward making customers happy and build a business relationship. I’m a honest and professional person, will never disappoint any client Thank you from Ervin.
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Latest review:
Fit 4 new doors, paint the hallway and stairs. Ervin arrived promptly was courteous, clean working, and very willing. I am pleased with the work he did for me and would use him again, and certainly recommend him to others
O D Thomas Builders Limited
No reviews yet
Extension Builder in Letchworth Garden City
Experienced and reliable local builder with over 15 years building trade experience. Based in Datchworth, Hertfordshire covering all aspects of building work including extensions, new builds, refurbishments, groundwork, carpentry. Established for over 10 years working in the local area.
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PWF CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
FRIENDLY, POLITE AND CONSCIENTIOUS
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Latest review:
PWF construction were never hired to complete my job and the fact that I am now writing a review is an error on my part. Paul Fisher was however very helpful when he provided a quotation for my job and his communication was great.
Neil smith building
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Had my own business for 28 years helping customers change and extend there property's. Also given a maintenance option to my customers for smaller jobs.
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Bee Builders Bedford Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
A family run construction company that has over 20 years of experience in the field. We specialise in conservatories, extensions, porches and fitting windows and doors. We pride ourselves of our work so you can be rest assured that any project will be completed to a very high standard.
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Latest review:
Bee Builders built a conservatory-style extension to our house. It measures 15ft x 9ft with uPVC windows and double doors with a metal, long life sloping roof with two skylights. The build was completed to a very high standard. Stefan and his team were extremely professional, polite and demonstrated amazing attention to detail. The garden was left clear of all rubbish and the build was completed on time at a very competitive price - 5 star performance🥂
Kingsmarque construction and maintenance
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
All building work taken on, slating and tiling, house renovations and extensions. We have a team of tilers, renderers, plumbers, painters and myself and business partner who run each job and manage the multiple trades required.
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Latest review:
Extensions- 25 Aug 2020
Really professional and quick to provide quotes. Unfortunately, due to COVID and our circumstances changing, we have had to cancel the job. We would definitely go back to them in the future though.
Acro design and build
No reviews yet
Extension Builder in Letchworth Garden City
Hi we are new to my builder but certainly not new to the building trade, we have a good team of tradesmen working together for over 20 years,we thrive to achieve and deliver the best possible project for our customers at very reasonable rates.we have experience in all aspects of building commercial and residential and many satisfied customers,please take a look at some of our previous projects not only to see the quality of our works but the scale we can build on Many Thanks John Duncan
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Pgm grup services ltd
New on MyBuilder
Extension Builder in Letchworth Garden City
Welcome to PGM GRUP SERVICES LTD . We are a professional and reliable groundworks and landscaping team dedicated to transforming and maintaining your outdoor spaces to the highest standards. With extensive experience in all aspects of ground engineering and hard landscaping, we pride ourselves on delivering top-quality craftsmanship, durable structural work, and competitive pricing. No matter the scale of the project, we treat every property with maximum respect, ensuring clean, efficient, and precise execution from start to finish. Our Specialist Services Include: Driveways & Paving: Block paving, resin, concrete, and pathways built to last. Fencing & Edging: Secure, high-quality fencing installations and neat perimeter edging. Brickwork & Walling: Professional bricklaying for garden walls, retaining walls, and boundaries. Drainage & Eco Channels: Complete drainage solutions, surface water management, and eco channel installations to prevent flooding. All Groundworks: Excavation, site clearance, foundations, and sub-base preparation. Why Choose Us? Guaranteed Workmanship: Fully committed to structural safety and flawless finishes. Honest & Fair Pricing: Transparent, free, no-obligation quotes with no hidden costs. Reliable & Tidy: We arrive on time, work efficiently, and always leave the site spotless. We are fully insured and ready to bring your project to life. Contact us today to discuss your requirements!
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Hazelco
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Family run Business for 18 years, all works under taken from 3 metres in the ground to 3 floors up. Treating your homes as our own.
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Latest review:
Carpentry- 24 Aug 2025
Shane did a great job fixing the wood that supports our porch. Communication was clear all the way through the process. We have already asked him to do another wood work job for us.
KBS Construction Services
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
In our offer we have a wide range of construction services such as: • Extensions • Conversions • Renovations • Kitchens • Bathrooms-Washrooms • Property Maintenance • Handyman Service • Refurbishment • Brick work etc • Specialist Stone, tiling etc. • Painting & Decorating • Window fitting • Architecture Steel Fixing • Under floor Heating and many more
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Latest review:
Restoration & Refurbishment- 8 Jun 2020
Kamil and his tiler have been excellent. He was able to do the work at short notice, he always turned up on time and stuck to his quote. The quality of the work is excellent with special mention of the tiling which would probably win a competition! Kamil remedied minor problems that occurred as the work was in progress ensuring that the completed work was first rate. I will certainly use Kamil again and have no hesitation in recommending him to others.
Daniel Construction
No reviews yet
Extension Builder in Letchworth Garden City
We are reputable company working in construction on residential and domestic buildings helping other people to build or renovate their dream home. We are offering high quality in all the work carried out at fair price.
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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.