Extension Builders in Southwark

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (17 reviews)

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Some of our top rated extension builders in Southwark

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CLEMPTON BUILDING SERVICES
Rating: 5 out of 5
Extension Builder in Southwark
We are based in Crawley, West Sussex and we cover a radius of 80 miles. We offer domestic and commercial building services. Fully insured. We not only want to ensure you are completely satisfied with the end result, but we would also like you to enjoy the process along the way. Whatever your budget we offer a comprehensive tailor-made service. All our own full-time staff is industry professionals with years of experience behind them.
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Latest review:
Bathroom Fitting- 10 Jul 2023
Zolton was very professional and completed all the work in timely manner. Kept job very tidy all the time and no rush at all.
Karnail singh
New on MyBuilder
Extension Builder in Southwark
I am a self employed. I have worked in building works more than 7 years. I can design and build and can do almost every work. Plumbing, electrician, carpenter and I can do every handyman work.
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Poles Apart Construction
No reviews yet
Extension Builder in Southwark
Hi all My names is Gracjan Im from Poland . I have 17 years experience in carpentry Joinery 1 and 2 fix .This is my passion so I can do anything made of wood. Thank you
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Wg 1 ltd
No reviews yet
Extension Builder in Southwark
Hi we are a experienced building company that takes all building work from garden walls to new house builds, refurbs and extensions. We also specialise in flood and fire damage insurance work We deal with the whole process from getting you the quotes to drying out the damaged property to fill repairs and dealing with the insurance and loss adjuster direct to save you the hassle.
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Gh building
No reviews yet
Extension Builder in Southwark
Gh building have over 25 years of building experience, completing a variety of projects. All brickwork undertaken. Ground works Driveways Extensions Garden walls Landscaping
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B H Construction
No reviews yet
Extension Builder in Southwark
B H Construction can assist you with all aspects of the building trade including extensions, refurbishments, structural alterations and all other trades. We pride ourselves on our high standards of work and have many years experience in the trade. We work closely with a kitchen company if you require a kitchen refurbishment and we also fit bathrooms from fairly basic installations, to very high spec. Fully insured
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Contempo interior ltd
Rating: 5 out of 5
Extension Builder in Southwark
Highly skilled kitchen fitter with extensive knowledge of kitchen,bed room and living room furniture.I can help you create your dream space from design,acquisitions of suitable units to completion of your project in a timely and most cost efficient way.
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Latest review:
Kitchen Fitting- 8 Mar 2025
Spoke with Contempo and they stated they would be able to attend to do the job that evening as they would be in the area, they arrived at the time stated and carried out the works there and then as required and expected. Provided a demonstration of the fan working and also installed the cupboard door to the face of the extractor unit. Cleared up and charged the amount that was agreed. Great, reliable and professional service.
JC Bricklaying And Building Contractors
No reviews yet
Extension Builder in Southwark
I started my business in 1997 as a bricklayer/builder. I am highly experienced in all aspects of building as i have been in the industry for 32 years. I carry out extensions, roofing, carpentry, structural steel alterations, driveways, patios, garden walls, landscaping and any other works.
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Nobel LUX LTD
No reviews yet
Extension Builder in Southwark
We have 10 years experience in fitting kitchen and furniture for brands as Wren kitchen, Schimdt and other brands furniture and kitchen. As we are doing any extra jobs . We are doing most of the building works. We doing as well extension and refurbishment of your dream house .
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Eisa construction services LTD
No reviews yet
Extension Builder in Southwark
Welcome to Eisa Construction Services! We are a trusted and experienced construction company committed to delivering exceptional quality, safety, and value in every project we undertake. With years of expertise, our team specialises in residential, commercial, and industrial construction, handling everything from new builds to complex renovations and custom designs. Our mission is to exceed client expectations with a combination of innovative solutions, top-tier craftsmanship, and unparalleled customer service. From the first consultation to project completion, we focus on clear communication, precise execution, and timely delivery, ensuring every step is handled with the utmost care and professionalism. We pride ourselves on being reliable, transparent, and passionate about what we do. Whether you're planning your dream home, upgrading your business space, or starting a large-scale project, we bring your vision to life with dedication and attention to detail. Let us make your construction experience smooth and successful. Reach out today to discuss how we can help with your next project!
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Warren
No reviews yet
Extension Builder in Southwark
We are a father and son team 35 years experience in the the building industry.we mainly do carpentry and Drywall systems all our work is done to a very high standard which makes us different from most out there
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Quality Build Ltd
No reviews yet
Extension Builder in Southwark
I am a professional builder with 20 years experience, I specialise in loft conversions and extensions. I have a full team providing customers with a high quality finish every time. I have plenty of references and photos of previous projects if required.
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Happy
No reviews yet
Extension Builder in Southwark
I have experance for building job nearly 20 year
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LBT ENGINEERING LTD
No reviews yet
Extension Builder in Southwark
Comprehensive, practical and cost-effective engineering solutions.
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Ausvydas
No reviews yet
Extension Builder in Southwark
Home renovations,house extension Loft conversions
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Go Plumbing services LTD
No reviews yet
Extension Builder in Southwark
Here at Go Plumbing Services we offer a huge variety of services from tap repairs, bathroom installations to full property maintenance. Established in 2005 Some of our recent works have included: Full bathroom rip outs and installation Toilet/sink/tap changes Re tilling small and large areas Fully high quality painting of walls and wood work. Full re wiring of electrics to single socket changes. Tap repairs Out side tap installation Carpet cleans using organic cleaning products only. Internal Door changes/repairs. Full End of tenancy cleans. Our company is fully insured. All our staff are fully DBS checked. Thank you for reading Joe
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3.8

Top rated Extension Builders

Our Extension Builders in Southwark, are rated 3.8 out of 5 based on 17 reviews from customers like you.

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

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 Southwark 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 Southwark who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Southwark?

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

Find extension builders in Southwark with MyBuilder

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

Step 2: Compare different extension builders in Southwark

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

Step 3: Hire Southwark extension builders with confidence

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

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

What to ask a Southwark extension builder before hiring?

Before hiring an extension builder in Southwark or extension building company in Southwark, 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 Southwark?

An extension builder in Southwark 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 Southwark 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 Southwark?

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 Southwark 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 Southwark 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 Southwark

Can an extension builder in Southwark help with planning permission?

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

Many Southwark 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 Southwark help with materials and finishes?

Yes, most extension builders in Southwark 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.