Extension builders in South London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (22 reviews)

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Some of our top rated extension builders in South London

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ZORKUN LIMITED
No reviews yet
Extension Builder in South London
Welcome to Zorkun. We guarantee quality, professionalism and integrity. We are new to MyBuilder.com and you should chose us for your project because: 1. We have been in the construction industry for three generations and possess the experience and quality that comes with it. 2. Our team includes the same skilled and trustworthy members for the last 15 years. 3. We will assist you every step of the way which includes value engineering to save you money. Thank You
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B N CONSTRUCTION WISE LTD
No reviews yet
Extension Builder in South London
We are Experienced builder well equipped to take up New Build House and Flats, Loft Conversions, Side and Rear Extensions and general Renovation of a Property
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MCAF Consulting Ltd
No reviews yet
Extension Builder in South London
We are trusted builders in London and Berkshire with over 15 years of experience delivering exceptional results on both residential and commercial projects. Our team specialises in house extensions, loft conversions, and full property refurbishments, combining skilled craftsmanship with clear communication and professional project management. From small domestic renovations to large mansion houses, we take pride in providing a reliable, high-quality service that meets deadlines and exceeds expectations. Every project is handled with attention to detail, transparency, and respect for your home. If you’re looking for experienced, fully insured builders to transform your property, MCAF offers complete design-to-completion solutions tailored to your needs. Quality workmanship, honest pricing, and client satisfaction are at the heart of everything we do.
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Healwell
No reviews yet
Extension Builder in South London
We deliver exceptional quality of work throughout the UK 🇬🇧. Our services are competitively priced, ensuring you receive excellent value without compromising on quality. We pride ourselves on our swift turnaround times, allowing you to enjoy our services without unnecessary delays. With a track record of satisfied customers and no negative reviews, you can confidently choose us to experience the high standard of craftsmanship we provide. Let us show you the remarkable results that set us apart in the industry!
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RRV Construction
No reviews yet
Extension Builder in South London
Hello ,my name is Radu,i am bricklayer,i do any construction job around your house
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Daljeet Singh
No reviews yet
Extension Builder in South London
We specialize in high-quality bathroom fitting, plumbing, electrical and new home build workmanship. We also do expert fencing and electrical work, ensuring every project is completed to the highest standard.
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On
No reviews yet
Extension Builder in South London
General building work jobs experience 16 years within the construction industry. I have completed Varius extensions of all kinds. we have a great team here that can provide the quality and reassurance you are seeking.As we pride ourself in only high end and professional works for all my customers.
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PBL Building
No reviews yet
Extension Builder in South London
PBL Building is a company with over 25 years of experience in the construction industry, we pride ourselves on customer satisfaction, cleanliness, reliability and punctuality. Always there for any customer enquiries at any time. PBL Building have completed many small to major properties developments and refurbs over the last 25 years plus ,with full customer satisfaction. Always happy to assist and compromise with ideas and additions to any project undertaken Extensions,Loft conversions,Patios,Full landscaping,Rendering,Plastering Full refurbs, Bathrooms and kitchens Ive been a plasterer for 30 years now and building for just under 25 years ,so come with a lot experience and happy to pass on my knowledge to make your life easier and stress free
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HMR Builders Ltd
Rating: 5 out of 5
Extension Builder in South London
I have 19 years experience in the building trade. We can fit new bathrooms, kitchens, build extensions, plumbing, electrical work, staircases, tiling, plastering and most other jobs you may require doing around your house. We have also completed HMO’s, worked with many letting agencies and landlords directly. We are reliable and trustworthy and will work with our customers to make their ideas and dreams a reality. I provide free quotes and am fully insured. I can come and look at a job at a time to suit you including evenings and weekends.
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Latest review:
Conversions - General- 11 Sep 2026
Hired HMR Builders for my HMO project in Gillingham. Melvin did great quality work, gave great advise, guided through the whole process and has become a trusted partner I have engaged with him on other projects. I would highly recommend.
Gabhru brickwork
No reviews yet
Extension Builder in South London
Hi, I’m Yatin, a skilled and reliable bricklayer with years of experience in all types of brickwork — from garden walls and extensions to repairs, repointing, and decorative features. I take pride in delivering high-quality workmanship, clean finishes, and friendly, professional service on every job — big or small.
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Cgk construction
No reviews yet
Extension Builder in South London
I am doing building work from last 15 years. I am doing all the work professionally. We will provide you best quality of work.
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Pearsons Brother Builder and Contractor LTD
No reviews yet
Extension Builder in South London
Hi we are builders and contractors and we do all sort of building job like renovation, extension, loft conversions etc
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Bricklayer paving concrete kerbs
No reviews yet
Extension Builder in South London
Professional Bricklayer based in London with 15+ years experience in construction, Fully qualified (CSCS Blue Card, NVQ Level 2). Experienced in managing small teams and delivering projects safely and efficiently. Services include:• Brickwork & Blockwork• Extensions & Structural Work• Garden Walls & Landscaping Brickwork• Repairs & Repointing I focus on quality, precision, and customer satisfaction. Clean and tidy work guaranteed. Available for private and subcontract work. Competitive prices and free quotations.
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Hog builders
New on MyBuilder
Extension Builder in South London
At Hog Builders we transform existing houses into homes tailored to how you live. Specializing in residential renovations, kitchen and bathroom transformations, and full-home remodeling, we combine expert craftsmanship with a seamless, stress-free process. We know that remodeling your home is a major investment. That is why we prioritize honest communication, accurate timelines, and transparent pricing from the initial consultation to the final walkthrough. Whether you are updating a single room or completely re-imagining your floor plan, we deliver modern functional updates and lasting quality built around your daily life.
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Geni Renovation
No reviews yet
Extension Builder in South London
Looking for a reliable team to deliver high quality renovation? Look no further! Here at Geni Renovation we overtake all jobs, and can count on dedicated teams with excellent skills which can renovate at high standards, on budget and time without ever compromising on quality.
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Pal
No reviews yet
Extension Builder in South London
For a strong Thumbtack company description, focus on being professional, clear, and personable. You want to convince potential customers that you are the best person for their specific job.
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4.5

Top rated Extension Builders

Our Extension Builders in South London, are rated 4.5 out of 5 based on 22 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.