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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Orange Glow Energy Ltd
No reviews yet
Extension Builder in Letchworth Garden City
We are Orange Glow Energy Ltd, we have been trading for 14 years in the Construction sector starting in 2010 as a plumbing and heating company. We offer a full construction service, including small and large extensions, full new builds, carpentry, electrics including our original offerings of Plumbing, underfloor heating, UFH Servicing, Boiler installs, Boiler servicing, Bathrooms, Kitchens, heating controls; all small jobs like radiator changes, tap swaps, gutter cleaning mould prevention etc. Please see our website and socials
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BMC Barton& McCormick Construction Ltd
No reviews yet
Extension Builder in Letchworth Garden City
We are a building business. Undertaking all building works from refurbishments to new builds. House extensions and property remodelling is the bulk of our work. We pride ourselves on quality workmanship at realistic prices. We have 75 years of combined experience and can manage small to large projects.
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Dj Russell builders limited
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We are a building company which cover a multitude of trades in the industry. We pride ourselves on quality and good working relationships with all our clients. We have been trading for over forty years and have built up a good reputation with local authorities and domestic clients alike. We cover all building and maintenance aspects in the private and public sector.
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Latest review:
Extensions- 14 Feb 2021
Adam and the DJ Russell team have been great, I cannot recommend them highly enough. The job started on the 3rd of November 2020 and was completed on the 3rd of February 2021. All the neighbourhood have been impressed with the speed and accuracy of workmanship displayed. From the general builders (Bruce, Martin and Steve) to the brickies (Paul, Matt and Steve) and to the carpenters (Paolo and Dominic) through to the electricians (Max and his team) and the plumbers (Mark and Jack) and last but not least the plasterers (Gary and Craig) they all have kept me occupied with producing huge quantities of tea and coffee (-: but most of all they have constructed a quality extension for our home. Thank you for all your hard work and professionalism.
Raghbir Singh
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Carpenter with 15 years of experience providing reliable, high-quality workmanship across Dunstable, Luton, Leighton Buzzard and surrounding areas. Specialising in all aspects of carpentry including first fix, second fix, doors, skirting, architraves, flooring, kitchen fitting and bespoke work. From small jobs to full renovations, all work is completed to a high standard with attention to detail. Reliable, punctual and tidy, with a focus on getting the job done properly and keeping customers satisfied.
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Latest review:
Carpentry- 17 May 2026
Raghbir did an excellent job and completed the work on time, exactly as agreed. What stood out most was his honesty and professionalism there were no hidden charges or unexpected costs, which can often happen with some tradesmen. He also didn’t cut corners and delivered quality workmanship throughout. I would highly recommend him for any carpentry work.
Georgel S. Bangau
Rating: 1 out of 5
Extension Builder in Letchworth Garden City
We know how daunting managing and overseeing your project can be, but we’re here to make the process smooth and easy. We’re a team of fully professionals who tackle everything from complex projects to simpler operations. Fuelled by our commitment to excellence, we go the extra mile to make sure clients are completely satisfied with our work. Get in touch with us today for a free consultation.
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Latest review:
Hard Flooring- 11 Sep 2025
I’m not happy with the job George did for me. Just a day the floor started moving. I contacted him and he cut the call on me like I’m a piece of shit. I am a sick single mum struggling. He took £2500 from me and the job is not good. I’m sad and disappointed in him.😭😭😭😭
Buildsmart Brickwork Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hi my name is Daniel. I’ve been in the building game now for around 15 years. After college I worked for a house builder for 4/5 years before starting my own business. I’m a bricklayer by trade and I take utmost pride in my work and I carry myself as a professional from timekeeping to behaviour from me or anyone representing dth on site or domestic jobs. If you want your job done to a high standard with minimal fuss I’ll await your call.
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Latest review:
Extensions- 3 Jul 2023
Excellent service, great communication. Completed a potentially tricky project excellently. Would definitely hire again. Thanks
Prestige Refurbishment
No reviews yet
Extension Builder in Letchworth Garden City
I pride myself on my work. I'm committed to keeping a high standard when undertaking any task. I feel keeping good communication with the customer is essential throughout the job and like to see myself as someone that is very easy going and easy to work with whilst always maintaining the highest standard possible.
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T.G & Sons Construction Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
I have worked in Construction since 1990. I have owned and run my own Business since 1998. We undertake projects from £1k to £2M. New Builds, renovations, Extensions, Loft Conversions, Conservatories, Outbuildings, full Refurbishments and Modernisations. We have all trades available and take on every aspect of the building trade. We also provide Architectural and Maintenance services. We Plan, Design, Build & Maintain.
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Latest review:
Restoration & Refurbishment- 6 Aug 2019
We are so pleased with the result. All the guys were friendly, helpful and hard working. They did exactly what they said and kept us fully informed. We should have done this years ago. I fully recommend them. A great bunch.
MB Construction
Rating: 4.7 out of 5
Extension Builder in Letchworth Garden City
MB Construction has been in the construction industry for over 10 years. Helping clients improve their home and garden space at a reasonable price and to a high standard of work.
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Latest review:
Conversions - General- 27 Jul 2024
Michael is professional and diligent
JMK Construction
No reviews yet
Extension Builder in Letchworth Garden City
Local building company covering all aspects of construction including extensions, refurbishments and loft conversions and much more to a very high standard. We can take your project from design to completion working with both architects and designers to complete your dream. We use only the best tradesmen to make your sure you get the best finish available.
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DMS Home & Gardens Ltd
No reviews yet
Extension Builder in Letchworth Garden City
Covering all aspects of building work from groundworks up to roofing, alterations, renovations, conversions, Landscaping & property maintenance. I am a reliable builder/tradesman, who is professional, tidy and committed to ensure your project runs as smoothly as possible. Covering all of Hertfordshire and surrounding areas. Get in touch today for a free quotation
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UK NAMA Constructions Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Garden Fencing, Garden Decking, Artificial Grass, Wooden Floor Laminating, Decorating, Partitions.
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Latest review:
Carpentry- 28 Jan 2026
Ali did an exceptional job designing and building our staircase, and I couldn’t be happier with the result. From start to finish, he was a complete gentleman — polite, respectful, and a pleasure to deal with. Ali is clearly a true specialist at what he does. His knowledge, attention to detail, and confidence in his craft really stood out. He was able to design and install the entire staircase in just one day, which was genuinely impressive given the quality of the finish. He worked efficiently, kept the area tidy, and took great pride in his work. It’s rare to find someone who combines skill, professionalism, and good nature so well. I would highly recommend Ali to anyone looking for a high-quality staircase installed by a true expert.
S J Brookes Bricklaying & Building Services
No reviews yet
Extension Builder in Letchworth Garden City
Family run business with over 30 years experience. We have undertake all rennovations, extensions single/double storey, orangerys, conservatories, loft conversions, patios and block paving
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Aarbuilders
No reviews yet
Extension Builder in Letchworth Garden City
Hi I'm Glenn, a builder for over 25 yrs. From starting at the bottom and making my through all the main trades a builder needs and learning from some of the best in the business, I'm proud to say Aarbuilders was built by me but for you. Free quotations, advice and help when needed, we care and want to make your dreams a reality. No job too big or small.
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CNR Bricklaying & Building Services
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
CNR Bricklaying & Building Services. A friendly, family run brickwork business who speialise in all types of brickwork and restoration.
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Latest review:
Bricklaying- 19 Apr 2016
We have always found it a problem trying to match the correct tradesman to any work we have needed doing, so much so that many jobs have been left undone. You either end up with a personality clash, or just plain bad workmanship, well not this time. The entire process was a joy from start to finish, from the initial quoting process, to the completion and the standard of work was exemplary. Nothing seemed to be a problem for them and they were very pleasant to have around. We are busy drawing up a fresh list of jobs we need doing and would certainly thoroughly recommend them. If you have had any bad experiences in the past, give them a try, you will be very satisfied.
Buildway construction Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We have been in the construction industry for around 10 years with a portfolio of developments and refurbishments there’s not much we can’t do. We work in beds, hearts, cambs and bucks currently. See our previous works it speaks for itself
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Latest review:
Top notch service from start to finish couldn’t fault it cost effective and quality- every step of work we was updated with visibly and with photos always on time polite and friendly. Definition of professionalism

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.