Extension builders in Crowborough

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (7 reviews)

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Some of our top rated extension builders in Crowborough

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KINVEK CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Crowborough
We are a family run business, established January 2005, Kevin is a carpenter with over 40 years in the building industry, my son Matthew, who is a plumber, has been working with me for the last 10 years and wife Julie has been in the office since the start We pride ourselves on being friendly polite and trustworthy We do all types of building work, extensions, kitchens, bathrooms, carpentry, plumbing, electrics and decorating, fencing, decking
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Latest review:
Carpentry- 19 Aug 2026
Kevin was very competent supplied all the materials needed and did a thorough good job .I was very pleased and will be hiring him again when he is available
CMR Building and design Ltd
Rating: 5 out of 5
Extension Builder in Crowborough
We at CMR are a property renovation company that has over 7 decades of combined experience within the real estate sector coupled with home-grown knowledge of West Sussex. We ensure the management team in place at CMR have all the tools required to facilitate any size project, encompassing everything from consultancy with an experienced architect and designers as part of our in-house teams. We specialise in all areas of renovation, loft and extensions.specialising in bathroom fitting and pitching fitting. This is to include working with foundations, building structure, window and door installation, kitchen and bathroom fitting, all electrical works and plumbing. We work with building control, architects and designers and structural design teams and our in house specialist building team. We have full liability insurance and references upon request. We offer a fully insured protection service on all building projects. We also offer an advisory service to start a project and facilitate the first stages of all works.
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Latest review:
Carpentry- 30 Jan 2026
Richard worked tidily and thoughtfully and did a great job of making our stairs safe. Including some extra support under more treads and really finishing off well. Very personable and professional.
Rc builders
Rating: 5 out of 5
Extension Builder in Crowborough
Family run company with 20+ years experience using time served and fully qualified tradesmen Finishing to a high standard regardless of your budget. All work fully guaranteed
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Latest review:
Restoration & Refurbishment- 30 Apr 2026
Job was completed quickly and to a great standard. Reasonably priced and we would definatley use them ahain
dream build construction
No reviews yet
Extension Builder in Crowborough
Extensions,general building work,loft conversion, Garden walls, patios
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Eastbourne Construction Ltd
No reviews yet
Extension Builder in Crowborough
We are a highly skilled experienced team with an eye for detail and the capability to address all aspects of construction, be it, new builds, refurbishments, loft conversions, extensions and so much more. Clean and tidy workers who are always prompt. We pride ourselves on completing each and every project to the highest standards, on budget and on time. We value the trust we build with our clients.
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Ideal construction
Rating: 5 out of 5
Extension Builder in Crowborough
Hi my name is Paul, my company has only just started as a business, but we have been in the building game for nearly 40 years working for previous companies.
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Latest review:
Extensions- 11 May 2022
Excellent work, everyone on site was professional and let the neighbours know what was happening. Completely the job to a high standard on time and on budget. Would use again without a doubt.
Cjc construction south coast limited
No reviews yet
Extension Builder in Crowborough
Hi I’m Charlie Cunningham, I set up CJC Construction 8 years ago and take a lot of pride in our work. We have been working mainly in and around London for many years building extensions and loft conversions. We’ve only just started using my builder so if you wish we have many references of previous jobs. Our team are fully qualified and we work to the highest standard. Please don’t hesitate to ask for a quote.
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L&t brickwork
No reviews yet
Extension Builder in Crowborough
Experienced local lads looking to create a good rep always worked for other people now time to work for us
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Absolute Building Services
No reviews yet
Extension Builder in Crowborough
We are a friendly, family run business from Brighton, who work all over Sussex. We take pride in making sure the jobs are done to perfection and the customer is always happy. We specialise in extensions, refurbs and loft conversions. There is also no job too big or too small for us to undertake. We look forward to hearing from you.
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PJ Builders
Rating: 5 out of 5
Extension Builder in Crowborough
Over 30 years of history, in the Construction industry, working in both the Commercial & Domestic sectors. I work on recommendation and word of mouth and have many repeat customers and happy client's. I am an Approved Applicator with EWI and can offer a guarantee for any Exterior Wall system on the market.
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Latest review:
Conversions - General- 26 Apr 2024
A veritable small nugget of gold amidst an enormous cascade of falling rocks.........Peter and his team were amazing....no fuss, no drama, no add-ons or extras, an honest job, at an honest price, by an honest man.
10x group ltd
Rating: 5 out of 5
Extension Builder in Crowborough
a team of highly experienced tradesmen operating through out sussex , surrey and london
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Latest review:
Carpentry- 13 Jun 2024
Job went perfectly. Even the weather was good. They are a good company to do business with.
Maclondonbuilding
Rating: 4.9 out of 5
Extension Builder in Crowborough
MACLONDONBUILDING specialist in general construction and renovation services. All kind of house conversions . Our works are performed at the highest standard with attention to the details. Professional team always happy and enjoyed of the work.
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Latest review:
Tiling- 16 Jan 2026
Mac was fantastic and went above and beyond to do the job to a high standard, working well into the evening to get it done. I’d recommend him without hesitation for any work you need doing - big or small. We’re delighted with the finished product.
D A Lynch Building Services Ltd
Rating: 5 out of 5
Extension Builder in Crowborough
Hi my name is Dwight. I'm here from D A Lynch Building Services Ltd. I am here to provide you with excellent building work and whatever else you have to do around your home. My company carries out work to the highest quality with professional workmanship.
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Latest review:
I was very pleased with this company so much so that they are starting a new job for me November 15. The building firms carried out a full loft conversion for me installing bathroom, brickwork, joinery, plastering, Roofing and installation of windows and double glazed doors. I have high standards and want everything to be completed in the same way, the workmen respected my home and always left if clean. My main contact was with the owner of the company Dwight Lynch, he was very flexible and Nothing was too much for him to do. He has an attitude which I like in a builder "customer not always right but must be happy" he provided me with ideas along the way and where things did not go to plan due to my own instructions he worked around the issue and provided suitable alternative options. I was very happy with the pricing of the job and feel that certainly I would recommend him and also I would use him again. He and his workmen were all trust worthy and I gave them keys to my house to carry-out work whilst I went on holiday. I had no concerns when I came back everything was as I left it.
Walia construction
Rating: 4.6 out of 5
Extension Builder in Crowborough
Good finishing Contact me this number O seven 4 double 6 eight 3 five one double three contact me this number thanks
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Latest review:
Kitchen Fitting- 9 Oct 2026
Walia replaced our kitchen tap with a new one and did a fantastic job. The work was done to a high standard and the new tap looks and works great. Really pleased with the result and would happily use Walia Construction again. Highly recommended!
Building Contractors UK
Rating: 5 out of 5
Extension Builder in Crowborough
Commercial and domestic building company ,that cover all types of works . Exstentions Kitchens Bathrooms Structural steels
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Latest review:
Extensions- 5 May 2020
Amazing !!!!! From start to finish !!! Clear communist at all times , approachable , friendly .. treats you like a client not just a job . Pricing was sensible . Attention to detail was second to none . Finish was just amazing . Was so impressed have already recommended to my clients and a job has been acquired .. I will be having back to do remainder of extension and a few more rooms in house . Could not be happier and nor will you !
Aspects project management LTD.
No reviews yet
Extension Builder in Crowborough
Aspects Building & Project Management provides professional construction and project management services across East Sussex, West Sussex and Kent. We specialise in home extensions, loft conversions, refurbishments, renovations, new-build homes and residential developments, delivering projects with exceptional workmanship, careful planning and complete transparency. Our experienced team combines practical construction expertise with professional project management, ensuring every project is delivered safely, efficiently, on time and within budget. Whether you require a trusted building contractor to carry out the works or an experienced project manager to oversee your existing contractor, we tailor our service to suit your individual requirements. We pride ourselves on honest advice, clear communication and attention to detail from the initial consultation through to final completion. Every project is managed with quality, value and customer satisfaction at its core, giving our clients complete confidence throughout the construction process. At Aspects Building & Project Management, our goal is simple: to deliver outstanding construction projects while making the building process straightforward, stress-free for every client
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3.9

Top rated Extension Builders

Our Extension Builders in Crowborough, are rated 3.9 out of 5 based on 7 reviews from customers like you.

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What types of services are offered by local extension builders in Crowborough?

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

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

What are the hourly rates of extension builders in Crowborough?

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

Find extension builders in Crowborough with MyBuilder

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

Step 2: Compare different extension builders in Crowborough

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

Step 3: Hire Crowborough extension builders with confidence

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

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

What to ask a Crowborough extension builder before hiring?

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

An extension builder in Crowborough 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 Crowborough 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 Crowborough?

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 Crowborough 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 Crowborough 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 Crowborough

Can an extension builder in Crowborough help with planning permission?

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

Many Crowborough 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 Crowborough help with materials and finishes?

Yes, most extension builders in Crowborough 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.