Extension Builders in Letchworth Garden City

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (8 reviews)

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Some of our top rated extension builders in Letchworth Garden City

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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
Ridgewell Roofing and Building Ltd
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Ridgewell roofing and building ltd is a family owned and run business, we strive for perfection in the quality of our work , competitive pricing and customer satisfaction , no job is too big or too small , we do all types of roofing , from flat roofs in felt rubber fibreglass, pitched roofs repointing leadwork valleys and general maintenance feel free to get in touch
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Latest review:
Roofing (Pitched)- 10 Sep 2026
James was very prompt and gave a competitive quote and was professional in his response. Gave quotations for repointing a valley gutter and for replacing it if there was damage. James arrived promptly with his assistant and did a very good job with repointing the valley gutter as the valley itself was fine. He also replaced 4 damaged roof tiles at no extra cost. Would be happy to use Ridgewell Roofing for future roof work.
B&K
Rating: 5 out of 5
Extension Builder in Letchworth 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.”
Ascent Building Solutions
No reviews yet
Extension Builder in Letchworth Garden City
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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)
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!
Alex
Rating: 4.9 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:
Carpentry- 13 Aug 2026
Alex did what I asked and did a great job installing the awning. He also installed a metal shed and put up a beam to cover part of a wall. Overall, the work was good, although a few small details were missed in the shed, which seemed to be due to a lack of attention to detail. I found the price a little expensive, but overall I’m happy
HWA Building & Renovations
No reviews yet
Extension Builder in Letchworth Garden City
My Dad and I set up the company at the beginning of this year with ambition of building our own company, instead of working for others. We work in Hertfordshire, North London, Essex and Lower Bedfordshire. My dad has worked in construction for over 30 years, doing surveying for main contractors, as well as his own property development projects. I have now completed my degree apprenticeship in construction quantity surveying achieving a building science second class honors. I have also ran my own jobs for a main contractor in London and surrounding areas worth up to £4 million. Our lads on the tools all have CSCS cards, and have achieved the relevant carpentry qualifications. We specialize in bespoke garden rooms with our in house labor, and build extensions, refurbs, conversions, and new builds.
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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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Gabriel Slavik
No reviews yet
Extension Builder in Letchworth Garden City
I’m doing building work for last last 23 years. I always try to do precise work, I am happy to help and advise the customer.
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Pro builders
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
Got 10 years experience in kitchen and bathrooms installation, plumbing and internal renovation
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Latest review:
Plumbing- 9 May 2019
Helpful, polite, tried best to resolve the mixer shower issue but the root problem is still to be sorted.
MarioM Construction Ltd.
Rating: 5 out of 5
Extension Builder in Letchworth Garden City
We have spent 15 years in the construction sector. Having experience both in the private sector and commercial sector, we use innovative and modern technology to complete your work. In effect, we achieve higher precision, shorter work times and due to this a lower cost for you. Our deal with a builders’ merchant allows customers to access unique deals which are not available elsewhere. You can learn even more about us by looking at our past projects
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Latest review:
Extensions- 18 Jul 2016
Mario is a brilliant guy with full knowledge of the job. His workers were very punctual and hardworking and finished the job well. I would definitely recommend Mario to my friends and relatives and will use him in the future. Excellent Finish!!!
Bbs construction ltd
No reviews yet
Extension Builder in Letchworth Garden City
All jobs undertaken, no job too small or big, 30 years experience in the building and restoration, plus roofing, Whether its hanging a picture hook or a conversion
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4.5

Top rated Extension Builders

Our Extension Builders in Letchworth Garden City, are rated 4.5 out of 5 based on 8 reviews from customers like you.

Quality screening

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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.