Extension builders in South London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (21 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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SY DESIGN STUDIO LTC
No reviews yet
Extension Builder in South London
The SY Design Studio provides its clients with innovative design solutions that are both functioning and inspiring. We provide a full range of architectural design services for residential builds from concept to completion including extensions, conversion, redesigns, and new builds. Our services include Architectural designs and concepts Photo-realistic Renders Planning Applications Building Regulation Applications Local Authority Planning & Building Control management
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Rahul boxer
No reviews yet
Extension Builder in South London
HELLO! I'm Rahul Punia ,with a dynamic and innovative team BOXER's GROUP of skilled professionals committed to turning your houses into homes you've always dreamed of. With a wealth of experience, we specialize in a wide array of services from ground-breaking extensions 🔨to flawless plastering and paintwork 🏡 , sturdy roofing , precise brickwork🏠 ,⚡ seamless electrical and 🚿plumbing solutions , functional kitchen and 🛁bathroom fittings, robust flooring and innovative partitioning .
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Arcadia Construction and Security Limited
No reviews yet
Extension Builder in South London
Our success comes from over 20 years of experience in delivering quality tradesmanship on timely basis, with our management skill sets ensuring best performance and economies. Our goal is client’s ultimate satisfaction and loyalty. We offer house extensions, loft conversions, interior/exterior refurbishments, bathroom/kitchen renovation, tiling, decorating, carpentry, joinery, landscaping, bricklaying, paving, plastering, rendering and roofing. Security systems installation, CCTV & alarms.
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CMO CONSTRUCTION LTD
No reviews yet
Extension Builder in South London
Any work
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Corinth Contractors Ltd
Rating: 5 out of 5
Extension Builder in South London
Corinth Contractors is a residential contracting firm celebrating growing success from inception. Corinth Contractors undertakes residential renovation and extension projects allowing their clients to experience a hassle free, professional service with emphasis upon communication, execution and quality.
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Latest review:
Corinth Contractors from the beginning was a delight to work with upon our project. Some issues arose through the works as it was a fairly large project but quick solutions were presented! The service and quality of work was great and their project programme really helped us keep track throughout especially when we needed to supply items! Very happy with the final product and we have recommended to friends and family when/if they do their houses in the future.
Rathour
No reviews yet
Extension Builder in South London
All building work
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Abdel haja ltd
No reviews yet
Extension Builder in South London
Hello my friend : we are a home and property maintenance company provides comprehensive services to keep properties in top shape, ensuring a safe and comfortable environment for living or working.
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Lanext Group Ltd
No reviews yet
Extension Builder in South London
We are a family-run British building firm offering high-quality workmanship rooted in traditional building practices. With generations of experience and a strong commitment to craftsmanship, we undertake a wide range of projects, both large and small. We pride ourselves on delivering dependable, professional services with a personal touch, offering free quotes, competitive pricing and guarantees for complete peace of mind.
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Easy floors Europe Ltd.
New on MyBuilder
Extension Builder in South London
EasyFloors UK is the new British arm of a flooring business with over 25 years behind it in Europe. We import SPC, herringbone, WPC, laminate and engineered oak direct, so you get quality flooring at keen prices without the high street mark up. We supply both homeowners and trade right across the UK and deliver straight to your door. Because we work direct, we keep our prices sharp and can send a sample out so you can see and feel the floor before you commit. Whether you need a few packs for one room or enough for a whole house, we will help you choose the right floor, work out quantities and get it to you quickly. We are also happy to work alongside your fitter so everything arrives on site ready to go. Friendly, straightforward, and here to make getting a great floor easy. Get in touch and tell us about your project.
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Radu Mutescu
No reviews yet
Extension Builder in South London
I'm qualified electrician I do domestic and commercial work
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DA BUILD LTD
No reviews yet
Extension Builder in South London
"DA Build. LTD is a construction company owned by Albert Dauti, a professional carpenter with 13 years of experience. We are committed to excellence in all that we do. We believe that on-time delivery of the highest quality projects for the best value is only part of the equation. The experience of the construction process is just as important as the results. We create positive, memorable experiences and lasting relationships because our actions are guided by our core values.We are known for our collaborative approach and problem-solving skills and working with our clients to develop a optimum build solutions to ensure best value. Our projects includes new build, loft extensions, refurbishment and summer houses."
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Warwick property maintenance ltd
No reviews yet
Extension Builder in South London
We are a multi trade company, we have worked for various main contractors and I have worked for various developers over a 20 year period and are looking to branch out in to residential work
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Anthony Williams
No reviews yet
Extension Builder in South London
Qualified Plumber and Heating engineer with years of experience with 1st/2nd fix plumbing, reactive maintenance, bathroom installations , boiler installations / full heating systems, breakdowns and repairs, boiler servicing , Gas safety checks. Also with multi trade experience
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Singh's site ltd
No reviews yet
Extension Builder in South London
We are a full-service construction company committed to delivering high-quality projects on time and within budget. With a strong focus on safety, innovation, and craftsmanship, we specialize in residential, commercial, and infrastructure development. Our experienced team works closely with clients to ensure every project meets the highest industry standards and exceeds expectations.
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jr4construction
New on MyBuilder
Extension Builder in South London
At JR4 Construction, we are a highly experienced and dedicated team of professional builders with over 6 years of experience working across London, as well as previous projects completed in Scotland. We specialise in all aspects of construction, from house extensions and new builds to complete property renovations, electrical installations, plumbing, roofing, kitchen fitting, bathroom renovations and structural building work. With a large team of skilled tradespeople, we have the knowledge, experience and workforce to take on projects of all sizes. Whether it's a small home improvement or a full property development, we are committed to delivering high-quality workmanship and outstanding results. We take pride in our attention to detail, reliability and professionalism, ensuring every project is completed to a high standard. Our goal is to provide our customers with a smooth, stress-free building experience from start to finish.
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Jk fine finish limited
New on MyBuilder
Extension Builder in South London
🏠 JK Fine Finish Limited – From Foundations to Fine Finishes At JK Fine Finish Limited, we provide professional building, renovation, and home improvement services, delivering quality workmanship from start to finish. We cover all aspects of building work, including: 🔹 Loft Conversions – Transforming unused lofts into beautiful, practical living spaces. 🔹 Home Extensions – Creating extra space to enhance your home and lifestyle. 🔹 Foundations & Structural Work – Building strong foundations for lasting results. 🔹 Electrical Work – Electrical installations and upgrades. 🔹 Plastering & Decorating – High-quality finishes to bring your space to life. 🔹 Bathroom Installations – Modern, stylish bathrooms tailored to your needs. 🔹 Kitchen Installations – Beautiful kitchens designed around your home. 🔹 Full House Renovations – From initial groundwork to the final finishing touches. ✅ From foundations to final finishes, you can count on us. At JK Fine Finish Limited, we take pride in our attention to detail, reliable service, and commitment to quality. Whether you’re planning a loft conversion, a new extension, or a complete home renovation, we’re here to turn your ideas into reality
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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 21 reviews from customers like you.

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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.