Extension Builders in South London

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

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Some of our top rated extension builders in South London

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Garry
No reviews yet
Extension Builder in South London
Hey all of you myself Gurvinder singh (garry) i m the carpet and wood flooring fitter and i will do my work responsibly because if you are happy then i m happy , Thank you 😊
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M&B Civils
No reviews yet
Extension Builder in South London
At M&B Civils we provide all aspects of groundworking and landscaping at a high level of quality. We focus to keep the costumer happy with our job and price.
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Heathrow Scaffolding Ltd
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Extension Builder in South London
Heathrow Development Services Ltd offers a professional and reliable roofing service with competitive prices. Our reputation has been built on strong values, with our company ethos being that we finish projects to perfection. Based in Middelsex we operate in and around the M25. We will always advise you on the best option to suit your personal requirements and provide step by step progress reports, using photographic evidence. Our team of skilled craftsmen cover all aspects of roofing, from carpentry packages, cutting and pitching the roof, to slating and tiling the roof.
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CPS
No reviews yet
Extension Builder in South London
At CPS we are a family run business, with over 50 years experience in the trades industry, holding all relevant NVQ’s and qualifications. We take on all types of works, including but not limited to renovations/refurbishment, demolitions, extensions/conversions and landscaping. We take pride in finishing our works to the highest standard. We strive to be the best.
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HR CHEEMA LTD
No reviews yet
Extension Builder in South London
I am doing this building work from 5 year . I have 10 familys who hiering me for repair work,landscaping,gardening ect.
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J.D.OWEN BRICKWORK
No reviews yet
Extension Builder in South London
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Irwin Building Services
No reviews yet
Extension Builder in South London
We are a small family run business ,city and Guilds qualified and citb lvl 1,2,3 in bricklaying WeHave been trading for the past 8 years and been in the building trade for 12 we thrive on customers happiness and job satisfaction ! The work we undertake varies weather it being a new build or a small garden wall , there is never a job too small
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AJ brickwork
No reviews yet
Extension Builder in South London
Bricklayer extensions and houses all types of walls
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NSV HOMES LTD
No reviews yet
Extension Builder in South London
NSV Homes Ltd is a premier residential construction and procurement firm based in Dagenham, serving East London and the Home Counties. Unlike standard builders, we operate a Direct-to-Manufacture Supply Chain, allowing us to deliver high-specification renovations without the "middleman" markups. With over 15 years of experience, we specialise in Full-House Renovations, Extensions, and New Builds, bridging the gap between design and delivery. Our Competitive Advantage: We hold direct trade accounts with the UK's leading manufacturers, ensuring our clients access premium materials at exceptional value: Kitchens: Direct Partner for Burbidge & Son, & Omega PLC, more. Lighting: Specified Partner for Sensio Lighting, more. Flooring: Direct Partner with Victoria Carpets, Riviera Home, and Hugh Mackay, more. Joinery: Bespoke media walls and cabinetry via HUX London, more. Core Services: Rear Extensions & Structural Alterations: From groundworks to steel sign-off. High-Spec Kitchens & Bathrooms: Supply and installation using our direct procurement channels. Full Property Refurbishment: Project managed from concept to completion. Media Walls & Bespoke Joinery: Custom-built using direct-supply materials. Why Choose NSV Homes: We combine the reliability of a family-run contractor with the buying power of a procurement house. We don't just build; we source, supply, and install the highest quality finishes for your home.
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Buildwise UK Construction Limited
No reviews yet
Extension Builder in South London
At the heart of every successful construction project is a team that understands more than just bricks and mortar. It understands people, purpose, and the importance of delivering on promises. Our company has built its reputation on exactly these principles. We are a trusted construction partner known for reliability, quality workmanship, and a collaborative approach that places our clients’ needs at the forefront of everything we do. With years of industry experience, we have established ourselves as a dependable and professional construction company capable of delivering projects of varying scale and complexity. From residential developments and commercial builds to renovations, refurbishments, and specialist projects, we approach every assignment with the same level of commitment and care. Our reputation has been earned through consistent performance, transparent communication, and a genuine dedication to excellence.
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Malkeet1construcstion
No reviews yet
Extension Builder in South London
“Hi, I’m Gurpreet singh. I’m a qualified builder with 7 years of experience in residential and commercial work. I specialise in all type of building work such as renovations, extensions, and general building. I take pride in quality workmanship and reliable service.”
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YBD Limited
No reviews yet
Extension Builder in South London
Welcome to our Architectural and development solutions team of professionals.We specialize in: 1. Architectural & Development Solutions – From concept to completion, we provide innovative and functional designs tailored to your needs. 2. Renovations – Transform your existing space with expert remodeling and upgrades, enhancing both aesthetics and functionality. 3. New Building – We bring your vision to life with high-quality construction, ensuring durability, efficiency, and modern design.
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Mamre & Partners LLP
No reviews yet
Extension Builder in South London
Mamre & Partners LLP is a trusted construction and home improvement company based in London. We specialize in renovations, extensions, kitchen and bathroom installations, garden work, plastering, flooring, and more. Whether it's a full refurb or small upgrade, we deliver quality workmanship with professionalism and care. Free quotes available—get in touch today to discuss your project.
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CJP LANDSCAPES
No reviews yet
Extension Builder in South London
At CJP Design and Build we cover all aspects of building and landscaping. We are a family run business that is committed to quality. We are fully insured and there is no job too big or too small. We like to work with clients to gain as much possible for a budget that suits. Reputation matters and we thrive from your reviews. All the best!
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Kandola uk construction ltd
No reviews yet
Extension Builder in South London
At Kandola Uk Construction , our mission is to provide high-quality work and exceptional customer service that you can rely on. Whether you're here for the first time or returning as a loyal customer, we’re committed to making your experience smooth, enjoyable, and tailored to your needs. Thank you for choosing us — we look forward to helping you every step of the way.
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Knights roof Ltd
No reviews yet
Extension Builder in South London
Knights Roof specialises in top-quality roofing, loft conversions, and timber work. We’re fully insured, highly rated, and committed to clean, timely work on every job. Fast-track roofing service available – because your time matters. With a focus on lasting craftsmanship and customer satisfaction, we treat your home like our own. We don’t just build roofs—we build trust. Free quotes & honest advice—every time.
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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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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.