Extension Builders in South London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (18 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

3422 Results

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Marius
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Extension Builder in South London
Multitrader
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Capital Construction Projects Ltd
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Extension Builder in South London
Loft Conversion Extensions Refurbishment New Build All aspects of building work
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Brati Construction Ltd
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Extension Builder in South London
At Brati Construction we have over 15 years of experience working on a wide range of refurbishment projects. o.2.o3.3.7.0.1.3.3.3. We work across London on contracts of varying sizes. Please contact us to discuss any project you would like us to look at.
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Mian builders london limited
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Extension Builder in South London
We are a professional builders
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Max Building Ltd
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Extension Builder in South London
Life warranty
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Equity Eco Services
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Extension Builder in South London
In the world of construction and bespoke carpentry, experience isn’t just an asset—it’s the foundation upon which lasting quality is built. For over three decades, Richard Parker has exemplified this principle, bringing his passion, skill, and unwavering commitment to every project he undertakes. As a master carpenter and general builder, Richard’s career is a testament to the value of traditional craftsmanship, steady innovation, and the importance of family legacy.Comprehensive Services: Carpentry, Joinery, and General Building Richard Parker offers a comprehensive range of services that cover every aspect of domestic and light commercial construction: Bespoke Carpentry: From custom shelving and wardrobes to hand-crafted staircases, doors, and windows, Richard creates pieces that are both beautiful and built to last. Joinery: Precision joinery for both structural and decorative purposes, including timber framing, roof structures, and intricate moldings. Extensions and Renovations: Complete home extensions, loft conversions, and property refurbishments that enhance both space and value. Kitchen and Bathroom Installations: End-to-end service for modernizing and upgrading the most important rooms in your home.
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UKA BUILDS LTD
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Extension Builder in South London
Hello and welcome! We are UKA BUILDS LTD, your trusted partner in building dreams and shaping the future through exceptional construction services. With years of experience in the industry, we specialize in providing high-quality, reliable, and innovative construction solutions tailored to meet the unique needs of every client. Whether you’re looking to build a new home, undertake a commercial project, or renovate an existing space, we offer expertise that ensures your vision becomes a reality. Our team is dedicated to delivering projects on time and within budget, all while maintaining the highest standards of safety and craftsmanship. We pride ourselves on our attention to detail, open communication, and a commitment to excellence at every stage of construction. Let us bring your ideas to life. Together, we can build something that lasts. Feel free to reach out with any questions or to discuss your upcoming project. We look forward to working with you!
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Lukas Builder Team
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Extension Builder in South London
14 years of experience in construction in central London. High-quality work. Excellent references from every previous client. Work completed on time. No hidden costs. Many photos of previous work. Free quote.
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Pro House&Office Fit Out
New on MyBuilder
Extension Builder in South London
We are a highly reliable and experienced construction company known for delivering top-quality workmanship. Our team focuses on precision, durability, and customer satisfaction in every project. We take pride in meeting deadlines and exceeding expectations.
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Tech-Team Construction
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Extension Builder in South London
Professional interior and construction photographer with vast experience. My clients are construction companies, interior designers, architects and craftsmen who want to have a good portfolio of their work and proper website.
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JH Building Works Ltd
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Extension Builder in South London
JH Building Works Ltd carry out all construction, maintenance, repairs and alterations work. We provide a general building service and undertake work all of scales and types.
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Fisher construction ltd
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Extension Builder in South London
We do large construction work, new builds large extension and swimming pools.
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Newstar Building Services Ltd
Rating: 4.9 out of 5
Extension Builder in South London
HI my name is Bill and I run a building company. All our work is base on recommendations costumers We work all around London.
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Latest review:
Hard Flooring- 22 Oct 2025
Enea did an incredible job, and we’re beyond happy with the final result. He was very accommodating, helped us choose the right tone of varnish beforehand, and kept us updated throughout the day by sending pictures of his progress (as we were both at work). Enea is trustworthy, and even though we didn’t have the chance to meet him in person, he left the flat securely, taking care of our keys and door. We highly recommend Enea!
LMD Build LTD
No reviews yet
Extension Builder in South London
We are a ‘shell building team’ who carry out brickwork, structural alterations, steelwork and groundwork for private clients, general builders and developers. We are currently carrying out brickwork contracts for new build developments and extension shell work for various builders which includes the structural element from demolition to roof plate. (Just before the roof is cut) We pride ourselves on providing a professional, caring and high-quality service and always meet our customers needs.
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Argo Building Services Ltd
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Extension Builder in South London
We are a small to medium sized company operating within the M25 Orbital, with years of experience in all common aspects of construction & maintenance works. We always take a proactive and detailed approach to all projects we undertake, with a tidy, professional, and friendly workforce. As well as a very loyal private client base we work closely with a number of the market leading management and sales & lettings agencies in London and its outer boroughs.
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DHARAM BUILDERS LTD
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Extension Builder in South London
Welcome to Dharam Building Services, your trusted partner in construction and home improvement for over 15 years. With a passion for quality craftsmanship and a commitment to exceptional customer service, we specialize in turning your home improvement dreams into reality. Whether you're planning a renovation, need repairs, or want to enhance the functionality and beauty of your living space, we’ve got you covered. Our expert services include tailored consultations, drywall repair, exterior and indoor painting, flooring installation, and custom garage designs. We also offer general repairs and maintenance to keep your home in top shape, home extensions for added space, water fixture repairs, and tile work installation for lasting aesthetics. For those looking to maximize space, we specialize in loft conversions and extensions, providing you with more room to grow. At Dharam Building Services, we combine over a decade of experience with attention to detail to ensure every project is completed to the highest standards. Our satisfied customers speak for us, and we invite you to read their reviews on Google. Contact us today to discuss your next project—we look forward to helping you transform your home!
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3.9

Top rated Extension Builders

Our Extension Builders in South London, are rated 3.9 out of 5 based on 18 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.