Extension builders in Lewes

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

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Some of our top rated extension builders in Lewes

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Usher Carpentry
Rating: 5 out of 5
Extension Builder in Lewes
I cover all aspects of carpentry and building with over 20 years of experience as a sub contractor. Now bringing my services direct to the public.
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Latest review:
Carpentry- 19 Aug 2019
Excellent job, very proffesional. Work carried out exactly as it was planned. Punctual, polite , knowledgable and a tidy worker. I couldn’t ask for more. Even came at a very competitive price! 10/10 !!!
Design build manage ltd
Rating: 5 out of 5
Extension Builder in Lewes
I’m Joe Mitchell, Director of Design Build Manage Ltd, with over 20 years’ experience in the building industry. We specialise in extensions, loft & garage conversions, structural alterations and complete renovations. We can manage your entire project from start to finish, including drawings, planning, structural engineering, Building Control and construction. Professional, reliable and fully managed — from the ground up.
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Latest review:
We had a really positive experience with Joe and the team at Design Build Manage and would highly recommend them. From the outset, the quotation was excellent — very clear, detailed and easy to understand, with a full breakdown of the works and a sensible staged payment schedule. This gave us a lot of confidence going into what was a fairly substantial project. Joe was very hands-on throughout and was on site most days. Communication was always clear and responsive, and we always felt we knew what was happening and what the next stage of the project would be. The whole team were incredibly friendly and considerate, particularly as we were living at the property throughout the works with young children and a dog. They were always respectful of our home, tidy and genuinely pleasant to have around. The project did run a few weeks beyond the original schedule, but this was largely due to unforeseen circumstances that arose during the build, and we were kept informed throughout. Most importantly, we’re extremely happy with the finished work and the way the whole project was managed. I wouldn’t hesitate to recommend Joe and the Design Build Manage team for any building project, big or small.
Ashdown building and brickwork
No reviews yet
Extension Builder in Lewes
All building work brickwork, block work, patios, extensions
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Loft Extension Roofing Ltd
Rating: 5 out of 5
Extension Builder in Lewes
Our complete design and build service will transform your home! Our team works with you to create bespoke designs that suit your needs and budget, ensuring every detail is taken care of. From traditional extensions to modern loft conversions, we deliver exceptional results that add value to your property. Contact us to schedule a consultation with our team .
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Latest review:
Extensions- 9 Feb 2026
Highly recommended professional building services.
Project Property South East Limited
No reviews yet
Extension Builder in Lewes
I am a local builder , we offer all building works from changing a fuse to building a warehouse , I have 20years plus experience in the industry
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ImperialHires
No reviews yet
Extension Builder in Lewes
At Imperial Hires we specialize in professional 360 machine digger services, delivering high-quality groundwork solutions for residential, commercial, and construction projects. With years of experience in excavation, trenching, footings, and garden/site clearance, we take pride in offering reliable, efficient, and safety-first services to our clients. Whether you need precise trench digging for utilities, strong foundations for new builds, or land clearing for landscaping, we ensure every job is completed to the highest standard. Our commitment to professionalism, customer satisfaction, and attention to detail sets us apart in the industry. Our Services: ✔ Trench Digging & Footings – For foundations, drainage, and utilities ✔ Garden & Site Clearance – Removing debris, overgrowth, and unwanted materials ✔ Landscaping & Groundworks – Preparing land for patios, driveways, or new builds ✔ Small Demolition & Excavation – Efficient removal of structures and land reshaping
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Marben Construction
Rating: 5 out of 5
Extension Builder in Lewes
At Marben Construction we undertake all aspects of building and construction. Delivering high quality workmanship, a friendly reliable service to our customers giving them peace of mind they are working with the right company delivering high standards of workmanship and value for money.
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Latest review:
Mark and his team did a full kitchen diner extension for us earlier this year. They followed our plans and even came up with some new ideas that have worked wonders. They turned up every day and worked like troopers. Very precise in their approach and they cleaned up everyday. If you want a reliable hard working team that do the work to an excellent standard, you need Marben Construction. I will be calling them again on my next building project. 10/10
Highgrove construction
Rating: 4 out of 5
Extension Builder in Lewes
Hi my names
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Latest review:
Bathroom Fitting- 25 Aug 2024
Quick, tidy, friendly, polite will definitely use again and recommend
Inter Property Services Ltd
Rating: 5 out of 5
Extension Builder in Lewes
Inter Property Services is a building contractor based in Worthing, we serve West Sussex, London, Surrey and surrounding areas. Inter Property Services specialise in Refurbishments, Extensions, conversions, Bathrooms, Kitchens, Lofts and new builds. Our team of highly skilled and professional tradesmen will complete your project in a clean and tidy manor and to the highest quality with outstanding attention to detail regardless if you project is large or small.
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Latest review:
Tiling- 8 Sep 2022
David did a very nice job tiling around my bath. He was very friendly and helpful. Overall a good experience and thoroughly recommended.
Avant Garde Construction Group Limited
No reviews yet
Extension Builder in Lewes
Avant-Garde Construction Group Ltd is an independent construction company that has a proven track record of delivering high-quality work with superb attention to detail. We specialise in Extensions and New-build homes throughout the South East of England and undertake all aspects of your building project. We pride ourselves on our commitment to provide you with a professional, yet personal service and our goal is to exceed your expectations through our workmanship and passion for construction.
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BAU Property Developments Ltd
No reviews yet
Extension Builder in Lewes
Welcome to BAU Property Developments. We specialize in enhancing the value & beauty of homes property portfolios and commercial property, through development, construction & project management. We pride our selves on our dedication to turn your vision into reality. Contact us for a consultation today!
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S&A construction
No reviews yet
Extension Builder in Lewes
Free quote for driveways patios extensions any general building and landscaping with over 15 years experience
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CLD Building & Construction LTD
Rating: 5 out of 5
Extension Builder in Lewes
CLD Building & Construction Ltd is a Kent-based building company providing reliable, high-quality building, maintenance and property repair services throughout Kent and the surrounding areas. We undertake a wide range of residential and commercial works, including general building, brickwork, roofing repairs, plastering, rendering, carpentry, property maintenance, refurbishments and external works. As a fully insured limited company, we pride ourselves on delivering professional workmanship, honest advice and excellent customer service from start to finish. Our reputation is built on reliability, attention to detail and ensuring every project is completed to a high standard. Whether you require a small repair or a larger building project, we are committed to providing quality workmanship at competitive prices. We welcome enquiries of all sizes and are happy to offer free quotations and advice.
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Latest review:
Excellent service from CLD Building. They carried out a roof repair promptly and professionally, with great attention to detail. Friendly, reliable, and reasonably priced. Very happy with the finished result and would definitely recommend.
Henty Building Services Ltd
No reviews yet
Extension Builder in Lewes
Welcome to Henty Building Services Ltd a leading building company established over 35 years ago. Our reputation is synonymous with the highest standards of craftsmanship, service and quality. We pride ourselves on consistently providing a complete, professional, trustworthy and courteous service. We aim to be competitive on pricing and have a proven track record of customer satisfaction, as evidenced by the high levels of referrals and repeat business.
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Oracle glazing & repairs ltd
Rating: 4.8 out of 5
Extension Builder in Lewes
With over 25 years of industry experience, Oracle Glazing is your trusted partner for premium window and door solutions across Sussex. Based in Worthing, we proudly serve homeowners, businesses and trade professionals alike, delivering exceptional dedication to quality. Our partnerships with leading brands, such as Origin and Decorio, allow us to offer cutting-edge solutions, tailored to your needs. We provide a range of glazing services, ensuring every project is handled with the utmost care and precision: At Oracle Glazing, we’re proud to have built a reputation for delivering reliable, high-quality results and outstanding customer care. Every project, whether it’s a minor repair or a full window and door installation, is treated with the same attention to detail and dedication. Whether you want to restore heritage windows or install modern Origin bi-folds, we’re here to help From sleek, modern double-glazed windows to stylish, secure doors, we supply and install a variety of options, tailored to your requirements. Whether you’re looking to enhance the natural beauty of your home or create a stunning storefront for your business, we can help.
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Latest review:
Windows & Doors (uPVC & Metal)- 7 May 2026
Following contact with the trader and resolution of the initial communication issues, this review has been updated as a temporary placeholder while works are ongoing. At present, the customer has confirmed that communication has resumed and the project is proceeding as agreed. As the works have not yet been completed, a final review cannot fairly be given at this stage. The customer remains hopeful that, upon successful completion of the project, this review can be updated to reflect the full experience positively.
JC Kitchens and Bathrooms Ltd
No reviews yet
Extension Builder in Lewes
We are a small company with over 25 years of experience in the trades. Specialising in kitchens and bathrooms but with capacity to take on all kinds of jobs of different sizes from tiling and plumbing to full scale extensions we can do it all
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Top rated Extension Builders

Our Extension Builders in Lewes, 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 Lewes?

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 Lewes 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 Lewes who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Lewes?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Lewes 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 Lewes extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Lewes home extension project is likely to cost.

Find extension builders in Lewes with MyBuilder

Hiring the right extension builder in Lewes 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 Lewes extension builders. Once your job is live, we’ll share it with home extension builders in Lewes who can express their interest.

Step 2: Compare different extension builders in Lewes

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

Step 3: Hire Lewes extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Lewes, 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.

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

What to ask a Lewes extension builder before hiring?

Before hiring an extension builder in Lewes or extension building company in Lewes, 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 Lewes?

An extension builder in Lewes 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 Lewes 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 Lewes?

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 Lewes 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 Lewes 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 Lewes

Can an extension builder in Lewes help with planning permission?

Yes, many extension builders in Lewes 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 Lewes handle everything from design to construction?

Many Lewes 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 Lewes help with materials and finishes?

Yes, most extension builders in Lewes 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.