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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Capital Prime Ltd
No reviews yet
Extension Builder in Letchworth Garden City
Capital Prime Fit Out Solutions is a building contractor providing a range of construction services to commercial and residential fit out and refurbishment projects across London. Our projects range from supply and install of bespoke kitchens and built-in furniture to complete turnkey shopfitting solutions.
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ajjloftcreations
No reviews yet
Extension Builder in Letchworth Garden City
We have 15+ years experience of all building works undertaken. No job is too big or too small. We aim to give the clients a high end quality finish and work with the clients day to day throughout any project we take on.
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ArhiTERRA design and build
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We are a family business with a dedicated team specializes in works of any size ranging from the design through to building process. Our experience is vast and we stand for fast and high quality services beeing in construction industry for over 10 years . The following services are available: -design and build of extensions and lofts, -refurbisments, -swimming pools and outdoor spaces -landscape design More details can be found on our website.
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Latest review:
Architecture- 5 May 2018
Contracted to provide options for a new garage office and storage solution. They turned up promptly and were very polite and professional. Through many discussions they ultimately offered up a very good bespoke solution for our situation and once planning is approved we will have no issue with looking to them to complete the actual build. We have had a lot of issues in the past finding reliable trades but with ArhiTERRA design and build we felt confident in their ability to both visualise and implement the build as well as follow through on their promises. I would say that for anyone considering discussing a project with them that it is worth your time to at least have a meeting with them and judge for yourself.
Martini builders
No reviews yet
Extension Builder in Letchworth Garden City
My is Aaron Martini been in building game for thirty years learned great deal ..I love bricklaying ,extension ,garden walls ,patio, pointing ...always give 100 percent to every thing I do
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MJG
Rating: 4.7 out of 5
Extension Builder in Letchworth Garden City
I have been working in the building industry a long time now and we have carried out many contracts big or small from extensions to bathrooms. I have a small group of guys that i always work with and trust to always deliver a great job for the customer.
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Latest review:
Extensions- 8 May 2025
Matthew is not good on communication but the work his team do is outstanding
Paul Stevens
No reviews yet
Extension Builder in Letchworth Garden City
Friendly, reliable and professional service. All brickwork undertaken. No job too small
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AP Smith Building Services
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hello my name is Adam. I am an experienced general builder in all aspects of construction. There is no job to big or to small my work ranges from brick and block work to full extensions, brick work repairs and repointing,all aspects of carpentry, new patios, patio relays, block paving, roofing, fencing, all aspects of landscaping, block paving, full garden makeovers, floor screeding, flooring,facias and soffits, guttering, kitchen fitting bathroom fitting, small plumbing and electrical works.
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Latest review:
Repointing- 5 Nov 2020
Adam responded to our advert within a couple of hours and came over the same day to provide a quote which we accepted. He was very professional in his approach and explained what was needed to be done. His workmanship was exceptional and he ensured that the areas were kept clean and tidy once he had completed the job. We would highly recommend him and would have no hesitation in using him again.
HEXAFORM CONSTRUCTION LIMITED
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
HEXAFORM is a London based multi-disciplinary design and build company that has the experience, work ethic, communication tools, and systems in place needed to bring any scale project from a virtual blueprint to reality. Historically the architect-contractor relationship has been one of an ‘us versus them’ mentality. But we’re 'both'. Having a design team under the same roof as a construction company means that the eccentricities of each project are rendered opportunities, rather than obstacles.
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Latest review:
Architecture- 12 Jun 2023
Lots of ideas, step by step explained. Easy to work with. Highly recommend
Alex
Rating: 5 out of 5
Extension Builder in Letchworth 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:
Decking- 22 Jun 2026
From quotation to completion Alex could not be more helpful or efficient. His advice on selecting the correct decking timber was much appreciated. I would have no hesitation in recommending him.
Shpetim troka
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Troka Construction specializes in home refurbishments, extensions, and a wide range of home improvements. With a focus on quality craftsmanship and personalized service, we bring our clients' visions to life with dedication and attention to detail.
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Latest review:
Carpentry- 30 Apr 2026
Great communication and was able to come and do the job quickly after first message. Job was completed to a great standard (skirting boards and some scotia)
Ascent Building Solutions
No reviews yet
Extension Builder in Letchworth Garden City
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Florin Pascu
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hello, I'm florin and welcome to my profile! I've been working in construction and building for the past 15 years, and have made all my customers happy, completing work to a high standard very efficiently. I'm available to talk anytime if you are interested to take a hard working person like me. Don't hesitate to contact!
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Latest review:
Plastering- 15 Dec 2025
Excellent. Definitely asking Florin to come back for the next two rooms.
Star 5 construction ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Hi everyone,Star 5 construction Ltd provides best quality of work with affordable price and finish your project with in giving time. For coustmer satisfaction we will provide you our liability insurance details. Our services: New build Extension. New loft conversation and new Roofing. Supply and fit new double glazed windows and doors, with K silicone rendering or Standard plastering. All types interior and exterior design and build. All types supplied and install steel beams. Free quotes and estimate. Many more offers if you need any information feel free to send us email with your plan, happy to provide you all the information.
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Latest review:
Mr singh and his team have done an excellent job,couldn’t have been more happier.Mr Singh’s experience and advice has saved me some serious money.really happy with the final product. It was big and complex task but it was completed in very efficient and professional manner.without any hesitation I’ll be recommending their services to friends and family
EEOC Ltd
No reviews yet
Extension Builder in Letchworth Garden City
Emilian has been in construction for over 20 years. Starting out FROM solving steps to FIXING things right after high school, he HAS learned in UK how to build a house from the foundation up. Few years ago he turned his passion AND KNOWLEDGE into a business that focuses on the long-term goals and satisfaction of his clients. As a Building , Refurbishing Construction , EEOC LTD can be defined as a complex construction projects.
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Dizzain Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
The multi trader with excellent skills and consistently good in work performance. If you need help with your house project, such as internal structural changes, rear extensions, loft conversions or any other house structural issues, please don't hesitate to contact. Happy to help and discuss suitable solutions regarding structural design, and to comply with building regulations. A fair and good fees.
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Latest review:
We used Andrius recently and were very happy with the service. Inspected our house and spent a lot of time discussing everything in detail. He completed the drawings very quick and communication was good. Good value for money. He even helped amending something later on as needed. Thank you!
Innovex Projects
No reviews yet
Extension Builder in Letchworth Garden City
Trusted Builders for Your Home Projects We’ve spent years delivering top-quality commercial and residential builds — from major developments to custom homes. Now focusing on domestic projects, we bring expert craftsmanship, reliable service, and a friendly, hands-on approach to every job. Whether it’s a renovation, extension, or new build, we’ll make sure it’s done right, on time, and with care.
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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.