Extension builders in South London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (20 reviews)

Easily find verified South London Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in South London.

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Some of our top rated extension builders in South London

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FM CONSTRUCTION
No reviews yet
Extension Builder in South London
Hi
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Emil Lungu
No reviews yet
Extension Builder in South London
17 years Experience in Groundworks, foundation,extension,etc.
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Blue Mark Construction ltd
No reviews yet
Extension Builder in South London
We are a trusted and reliable building services company, offering a wide range of construction and renovation solutions. With our expertise and commitment to quality, we deliver satisfactory results for all types of building works Our building company boasts a remarkable 12-year track record in delivering exceptional building services. With a wealth of experience under our belt, we have honed our skills and expertise to provide top-notch construction solutions. Throughout the years, we have successfully completed numerous projects, ranging from residential properties to commercial developments. Our commitment to quality and attention to detail has earned us a stellar reputation in the industry. Clients can trust in our ability to deliver projects on time and within budget, while ensuring the highest standards of craftsmanship. From start to finish, our team of skilled professionals work diligently to bring our clients' visions to life. With our extensive knowledge and proven experience, we are the go-to choice for any building project.
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GS builder
No reviews yet
Extension Builder in South London
Good morning! My name is Gurnam Singh , and I’m a professional carpenter with 3 years of experience in custom woodwork and furniture making. I take pride in delivering high-quality craftsmanship and making sure every detail meets your expectations. I’d be happy to learn more about your project and discuss how I can help bring your ideas to life
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Tung Developers ltd
No reviews yet
Extension Builder in South London
Hi, I'm Malkit Singh – a professional bathroom fitter and general builder with over 5 years of hands-on experience transforming homes across the UK. Whether you’re dreaming of a sleek, modern bathroom or need reliable building work done with precision and care, I’m here to help make it happen. If you're looking for a reliable, friendly, and skilled tradesman who gets the job done right the first time – get in touch. I’d be happy to provide a free quote and chat through your plans.
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SCME Builders Ltd
Rating: 5 out of 5
Extension Builder in South London
SCME Builders Ltd are a family run business for over 35 years.We are happy to give a free no obligation estimate on all types of building work. A NHBC registered company we can provide testimonials and references on all works large or small
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Latest review:
Extensions- 29 Aug 2020
Marvellous. Will always recommend Gary owner SCME Builders Ltd.
Braham Glazing Ltd
Rating: 5 out of 5
Extension Builder in South London
Finance Available : We are "Braham Glazing Limited" a reliable family company in London. We provide our customers with high class and excellent quality designs and build services whether it's windows, doors, conservatory or a porch throughout the UK. We respect the individual expectations of each customer and provide tailor-made solutions with bespoke products designed specifically for each customer. We work with passion and dedication towards every job big or small.
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Latest review:
Windows & Doors (uPVC & Metal)- 3 Apr 2025
Garry and team were very knowledgeable about how the windows should be installed. They managed to retain the Victorian features of the existing windows and were perfectionist when it came to finishing each window. I am very happy with my windows and would highly recommend them.
Luna
No reviews yet
Extension Builder in South London
Luna is a small local run business who is big enough to cope but small enough to care. We are dedicated to producing the highest standards for our customers with over 20 years experience of electrics and building. What ever the problem, however large or small we will do our best to come up with the right solution for you.
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Konsw ltd
New on MyBuilder
Extension Builder in South London
We provide professional exterior rendering service to improve the appearance,durability and wheather resistance of your property.we offer a range of finishes to suit your home,with careful preparation,quality materiale and attention to details.
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SDW Carpentry Ltd
New on MyBuilder
Extension Builder in South London
SDW Carpentry is a reliable and professional carpentry business providing high-quality workmanship for domestic and commercial projects. We take pride in delivering a friendly, dependable service with attention to detail and a strong focus on customer satisfaction. From general carpentry and joinery to bespoke projects, renovations, repairs and finishing work, we work closely with our customers to understand their requirements and deliver a quality finish that stands the test of time. We believe in working to a high standard, keeping customers informed throughout each project, and leaving every job clean, tidy and completed with care. Whether it’s a small repair, a home improvement project or a larger building job, SDW Carpentry approaches every project with the same level of professionalism and attention to detail. Quality workmanship, reliable service and customer satisfaction are at the heart of SDW Carpentry.
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Ajmo Construction ltd
No reviews yet
Extension Builder in South London
Your Dreams , Our Priority 🏡
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Bajwa construction
Rating: 5 out of 5
Extension Builder in South London
Welcome To Bajwa Construction Ltd. We Specialise in Bathroom Design & Installation, we are a family run business with numerous years’ experience in the trade. We provide all types of bathroom fitting and tiling services. We Also Offer the following Services: - · Bathroom Refurb · Bathroom Installations . House refurbishment · Tiling . Extension, side extension , back extension · Plumbing · Plastering/Rendering
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Latest review:
Gurpreet built my utility room in March 2023 and throughout the work he was very professional, puntual, consistent and accessible. Thank you
Master Brickwork London Essex Ltd
No reviews yet
Extension Builder in South London
Master Brickwork undertake repairs, brickwork, patios, driveways, extensions and new builds. We are focused on providing excellent services with the highest levels of customer satisfaction – we will do everything we can to meet your expectations.
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Blue Brickwork Ltd
No reviews yet
Extension Builder in South London
Blue brickwork has over 20 years experience in construction, were hard working, professional and reliable. We will work with you every step of the way to bring your dream project to reality. No job is to big or to small and we give 100% to every job.Give us a call for a quote or if you just need some professional advice.
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Affixx ltd
No reviews yet
Extension Builder in South London
We recently joined on my builder. Com but in Construction Industry working for 25 years . Currently working on new build house in High Wycombe. Got great deals on materials from my supplier so can do the project on very competitive price
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Taya Construction Ltd
No reviews yet
Extension Builder in South London
Taya Construction Ltd provides a comprehensive service to home-owners looking to extend, repair loft conversion,Kitchen,Bathroom,Roofing ,home extension or refurbish their homes. Having worked in the building industry for 10+ years, we have extensive experience of managing and implementing projects of any size.
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4.4

Top rated Extension Builders

Our Extension Builders in South London, are rated 4.4 out of 5 based on 20 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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 South London 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 South London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in South London?

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

Find extension builders in South London with MyBuilder

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

Step 2: Compare different extension builders in South London

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

Step 3: Hire South London extension builders with confidence

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

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

What to ask a South London extension builder before hiring?

Before hiring an extension builder in South London or extension building company in South London, 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 South London?

An extension builder in South London 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 South London 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 South London?

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 South London 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 South London 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 South London

Can an extension builder in South London help with planning permission?

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

Many South London 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 South London help with materials and finishes?

Yes, most extension builders in South London 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.