Extension Builders in Banstead, South East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Banstead, South East England

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Buildstar limited
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Buildstar Ltd, we provide high quality services to all of our customers. We do extensions, refurbishments, conversions, landscaping, kitchen and bathrooms. Please get in touch and we will do the rest
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Latest review:
Conversions - General- 2 Apr 2025
Rio was very professional and talked us through everything as it happened. Would definitely recommend. No extra charges on top of the original quote, took a few days longer than initially quoted but mainly down to the plaster being slow to dry. Thanks Rio.
Poplar construction UK ltd
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Poplar Construction have been established since the millennium.A local experienced contractor backed by insurance and the piece of mind that the company annually delivers certified company accounts . We have a built up a reputation with Architects and the local Authority . The company has an extensive client base with work ranging from refurbishment/ alterations to extensions . Our carpentry is extensive and we have a website displaying our bespoke range of wardrobes and alcove units / shelving bespoke . Our service is client friendly where we control payments according to the work delivered and do not look for unreasonable deposits . The business delivers good honest estimates at a reasonable cost with a reputation for delivering high quality and punctual work .
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Latest review:
Carpentry- 18 May 2026
Partition stud wall was installed in my log cabin , they turned up on time as stated, work finished within 3 days which was a great time scale , price was reasonable and the standard of the job was 10/10, I would highly recommend them.
Brockandsons
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Family run business 22 years in the building business All types of building from little jobs to big jobs Friendly and prompt service.customer always Comes first.
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Latest review:
Bricklaying- 11 May 2019
Great job and good quality. All has been done as agreed. Trustworthy, always on time and get the job done ! I will use again Thanks a lot
Keaveney Construction
Rating: 5 out of 5
Extension Builder in Banstead, South East England
We are Professional General Builders for both Residential & Commercial customers across All Trades & All Job Sizes. Owned and ran by Paul Keaveney, a builder with over 38 years experience. We have built everything from a tree house to a housing estate on a green field site. We do just about any building works, property maintenance and carpentry that you can think of. Experienced and skilled tradesmen carry out all works with any sub-contract work passed only to trusted and reliable associates.
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Latest review:
Extensions- 10 Nov 2024
Such a great job completed by Paul would highly recommend to everyone. Such clear communication throughout the whole job and very high standard of work. Will definitely be using in the future for any building works.
AG south construction
Rating: 5 out of 5
Extension Builder in Banstead, South East England
I'm qualified bricklayer with 20 year's experience, I'm doing refurbishements and new houses work from start to finishing off in very high standard.
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Latest review:
Extensions- 13 May 2026
Agim completed a ground floor extension for me in 2025 and I would not hesitate to recommend him for similar work. The quality of the work was excellent and the team worked tirelessly for months to ensure it was completed on time and for a reasonable price. Agim was able to adapt quickly when any unforeseen problems occurred, always clearly communicating possible solutions to help keep the project moving. Having people in your home can be difficult but Agim is very respectful and considerate, making sure to put our needs first. The results are fantastic and Agim continues to help snag any minor issues that come up. I couldn’t be happier with how things went, testament to his professionalism. Thanks Agim for all your help on this project.
AH buildings service
Rating: 5 out of 5
Extension Builder in Banstead, South East England
I guarantee you the quality work an the best price
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Latest review:
Bricklaying- 10 Nov 2023
An absolutely excellent job. Both my neighbours went over to ask for AH's contact details after seeing his excellent work. Really pleased I picked him. Great value too. Very reasonable price. Highly recommended.
Walter weir Ltd
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Walter Weir Ltd - established as a design and build contractor for the highest specification projects in residential and commercial developments in London & The South East. Our team of skilled tradesman, project managers & architects cover all scope of works within construction, who are experienced professionals, making the dream a reality for every client. We believe in cementing lasting relationships with clients & this can only be achieved by maintaining a constantly high standard of work.
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Latest review:
Groundwork & Foundations- 19 Feb 2020
Donald Weir was really professional and helpful. They got the work done and handled our queries with patience. We will be soliciting their services again very soon!
CG Carpentry & Building Ltd
Rating: 5 out of 5
Extension Builder in Banstead, South East England
CG Carpentry and Building Ltd is a family run business that commenced trading in 2008 and have grown from a two carpenter partnership to a company able to undertake large construction projects in London and Surrey.We pride ourselves on providing an excellent service and gaining repeat business through exceeding our clients expectations and their confidence in our ability to deliver the highest standards in terms of our carpentry, material procurement and project management.
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Latest review:
Sean did a full refurbishment on our house. He is the most organised and customer friendly builder I have ever used. From start to finish there was a plan of action and then a great group of qualified tradesman to execute. Like every refurbishment, we asked for changes and he always made us feel like the extras were no problem. I have no hesitation in recommending CG Carpentry. They are now our go to builders and in our next move he will be the first person I call.
EXCLUSIVE BUILDS LTD
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Exclusive Builds Transforming Spaces with Excellence for your new build. Creating your ideal new build space with top-notch construction. With over 13 years of experience in the construction industry, Exclusive Builds Ltd has become a trusted name in the field of construction. Our team of experts has the knowledge, skills, and expertise to handle any project, big or small. We have completed numerous projects ranging from residential homes to commercial buildings, and our clients can attest to our commitment to quality and excellence.
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Latest review:
Raf and Paul were great. We did a massive 6m pitched roof extension - it was a big undertaking but they were both very professional and did a great job. We are absolutely delighted with our new space and can't thank you guys enough!
Douglas carpentry and building
Rating: 4.9 out of 5
Extension Builder in Banstead, South East England
Douglas carpentry and building has over 10 years experience in all aspects of building work. We as a company have very high standards to accommodate all your building work needs from internal doors, skirting, architraves, built in wardrobes to all general building work. Hard working, dedicated, reliable, clean and tidy and here to give you a fair and honest quote. Please look at previous work on my Instagram page @douglascarpentry23
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Latest review:
Carpentry- 14 May 2026
Replaced a rotten external single door. The existing door frame was reused, as per request. This frame wasn't perfectly square which Alex had to compensate for. Alex arrived on time and completed the work without any unresolved issues, taking all offcuts and old door away for disposal.
AT Line Construction
Rating: 5 out of 5
Extension Builder in Banstead, South East England
We are a limited company with many years experinece at construction and usually undertake medium to large size projects like refurbishment, bathroom restoration, loft conversation, extensions and general refurbishment. With high end quality.
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Latest review:
Extensions- 17 Nov 2022
AT Line Construction built our extension and worked on the remodel of the inside of our flat. We are extremely happy with the results. Adison and his team are very professional and friendly. They were able to deal with any changes and problems that came up quickly and sensitively. Part of the build was to renovate a small disused swimming pool - this was a tricky job, and they were able to help us creat an amazing pool. We would definitely recommend them.
Prime Builders Contractor Ltd
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Specialists in home renovations, refurbishment and redesign, Our role is to deliver the renovation of your dreams, within your budget.
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Latest review:
Demolition- 19 Sep 2018
Lukas and his team did an excellent job. They arrived on time, were polite and friendly and worked incredibly hard. Would recommend.
Anything just for you
Rating: 5 out of 5
Extension Builder in Banstead, South East England
We are a trusted home renovation team with over 10 years of professional experience, proudly based in Sutton (SM1). Over the past decade, we have built a strong reputation for delivering high-quality workmanship, reliable service, and personalised solutions tailored to each client’s needs. Our expertise covers a wide range of home improvement services, including kitchen and bathroom renovations, flooring, tiling, plastering, painting, carpentry, and general property refurbishment. Whether it’s a small repair, a full remodel, or a complete home upgrade, we approach every project with care, precision, and attention to detail. Customer satisfaction is at the heart of what we do. We offer clear communication, fair pricing, and a commitment to finishing every job to the highest standard. Based locally in Sutton, we proudly serve homeowners across SM1 and surrounding areas.
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Latest review:
I recently had my whole kitchen renovated, and I couldn’t be happier with the results. The team was professional, skilled, and incredibly organised from start to finish. They arrived on time every day, kept the workspace tidy, and communicated clearly throughout the entire project. The quality of workmanship is outstanding — from the cabinets and tiling to the plumbing and electrics, everything was completed to a very high standard. They paid great attention to detail and always made sure I was happy with each stage before moving on. What impressed me most was how smoothly everything went. Any small issues were dealt with quickly, and the team was friendly, respectful, and easy to work with. My new kitchen looks amazing, and the whole project was finished on schedule. Highly recommended — a reliable and talented building team that delivers excellent results. I would definitely use them again for future renovations.
UP ABOVE GROUP LIMITED
Rating: 5 out of 5
Extension Builder in Banstead, South East England
Built on a foundation of expertise, Up above roofing and lofts brings a wealth of knowledge and experience to every project we undertake. We are committed to delivering the highest quality of workmanship and service to our clients. Our team is dedicated to providing the best possible experience from the initial walkthrough to the final walkthrough, we take pride in our work and stand behind it with 100% satisfaction guarantee.
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Latest review:
We was searching for builders for a long time, we are so happy we used up above, I have a young family and was worried about the house being disrupted due to the works, but we was pleasantly surprised! Very professional, kept us up to date with the work the whole time and we would highly recommend!
Ash builders and brickwork specialists
Rating: 5 out of 5
Extension Builder in Banstead, South East England
We are brickwork specialists with over 60 years experience between us. We are a family run business and its is ran by my dad and i. We take great pride in our work and always ensure we never leave a mess.
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Latest review:
Bricklaying- 25 Apr 2026
It was hreat pleasure to have rob and his team doing this job.They wre prompt, on time and did an excellent job. I strongly recomnend Ash builders.
A&B Building
Rating: 5 out of 5
Extension Builder in Banstead, South East England
A & Building in association with Home Snag4u. I pride myself on doing a good job and if it is not good enough for me to accept in my own home then it is not good enough for my customers. Advice to all customers when requesting any information regarding building work, alterations or repairs, please provide as much information as possible. Example is it a new home or older home. As you can imagine the difference in work between the 2 can vary due to building methods and materials. Also if possible try and upload some photos that capture the work you wish to have done as this will enable to provide you with the best estimate possible. Facebook Home Snag4u 0*7*8*6 6 7 5 3 0 4 9
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Latest review:
Handyman- 19 Jan 2026
Excellent work from start to finish. Shawn was professional, reliable, and took real pride in his work. The quality of the finish was high, the site was kept tidy, and the job was completed on time. Communication was clear throughout, and I’m very happy with the final result. Will be using them for my other projects.

4.1

Top rated Extension Builders

Our Extension Builders in Banstead, South East England, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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What types of services are offered by local extension builders in Banstead, South East England?

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 Banstead, South East England 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 Banstead, South East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Banstead, South East England?

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

Find extension builders in Banstead, South East England with MyBuilder

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

Step 2: Compare different extension builders in Banstead, South East England

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

Step 3: Hire Banstead, South East England extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Banstead, South East England, 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.

Banstead, South East England extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Banstead, South East England extension builder before hiring?

Before hiring an extension builder in Banstead, South East England or extension building company in Banstead, South East England, 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 Banstead, South East England?

An extension builder in Banstead, South East England 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 Banstead, South East England 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 Banstead, South East England?

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 Banstead, South East England 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 Banstead, South East England 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 Banstead, South East England

Can an extension builder in Banstead, South East England help with planning permission?

Yes, many extension builders in Banstead, South East England 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 Banstead, South East England handle everything from design to construction?

Many Banstead, South East England 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 Banstead, South East England help with materials and finishes?

Yes, most extension builders in Banstead, South East England 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.