Extension builders in Southfields

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (20 reviews)

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Some of our top rated extension builders in Southfields

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G G Property Development Limited
Rating: 5 out of 5
Extension Builder in Southfields
We are a friendly hard working company. We pride ourselves on archiving high standards of works in short time periods. We have carried various works from new builds, complete property refurbishments, extension, loft conversion, kitchens, bathrooms, electrical and plumbing works, plastering, rendering. All works are guaranteed and fully insurance. We are a commercial, industrial and domestic company. We have many photos of works and website shall be finished in the near future.
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Latest review:
Loft Conversion- 5 Dec 2018
Firstly the date of job posting and date of completing is all down to me not being ready with finances!! Secondly, and more importantly, GG Property were the most wonderful and professional bunch of lads you can hope to met. The work was done with such enthusiasm and to such a high level of detail. We could not be happier with the finished job. Thirdly, the great building work aside, GG Property were polite, happy, friendly, punctual and great communicators. All emails answered swiftly and with accurate information. No question was to silly and no concern (this was our first major building working) was to small to be addressed. Finally we are so pleased with work we are awaiting a quote for our bathroom and look forward to getting that job completed!! In short my experience with GG Property was nothing but top quality work and customer service. Any fears of the classic 'cowboy builder' could not be further from the truth; GG Property are a hard working truly lovely bunch and we would highly recommend them.
G&j
No reviews yet
Extension Builder in Southfields
I started my career as decorator in 2019 ,my goal is client satisfaction with a fair price and maintain the quality of my work which I intended to continue.
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Brick and mix construction
No reviews yet
Extension Builder in Southfields
At Brick and Mix Construction, we pride ourselves on delivering top-notch professional craftsmanship, backed by 25 years of experience in the building industry. Our experience spans both commercial site work & residential work.
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Cherrywood Design & Build Ltd
No reviews yet
Extension Builder in Southfields
Cherrywood was born from a deep passion for building things that last not just in form, but in feeling. From the earliest days, our work has never been about simply putting up walls or laying down foundations. It has always been about creating spaces that breathe, carry meaning, and quietly stand the test of time. What began as a small practice rooted in hands-on work and honest craftsmanship has gradually evolved into a collective of designers, builders, and visionaries, each bringing their own touch of precision, creativity, and care. Together, we believe that the details matter. That every corner holds intention, every line speaks of thought, and every finish carries a sense of pride.
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Monuk construction group LTD
No reviews yet
Extension Builder in Southfields
We are 3 companies that have merged through successful trading a kitchen specialist bathroom specialist and a structural builder we are approved installers for wren ikea eco Trus we as standard fit light weight steel loft conversion extensions and refurbish properties we are moving towards property development and will soon be building our own properties but for now we are still working on other peoples.
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MILSTRUCT Limited
No reviews yet
Extension Builder in Southfields
At MILSTRUCT Limited, building is more than just our business — it's our family tradition. With over 40 years of combined experience in the construction industry, we deliver high-quality workmanship across both domestic and commercial projects. As trusted, approved contractors for major pub chains and contractors for private clients, we have successfully completed large-scale projects including full refurbishments, extensions, and structural works. Our reputation is built on providing a seamless, professional service while maintaining the personal, hands-on approach that only a family-run business can offer. We are committed to working closely with our clients to bring their vision to life — delivering projects on time, on budget, and to the highest standards. Quality, reliability, and integrity are the foundations we build on every day. When you choose MILSTRUCT, you're choosing a team that values your project as much as you do.
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GUANGDONG GEKE ELECTRONIC TECHNOLOGY CO., LTD
No reviews yet
Extension Builder in Southfields
We are a solar photovoltaic panel manufacturer in China. We design, supply and PM renewable energy project worldwide for customers requested. Kindly drop us email at geket@yahoo.com for further discussion. God bless you
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Calibra damp proofing LTD
No reviews yet
Extension Builder in Southfields
Welcome to Calibra we are a family run company specialising in architectural services , damp proofing , general building & a bespoke design and build services all these services under one roof to bring you a seamless service you will be sure to recommend
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primebrickconstruction ltd
New on MyBuilder
Extension Builder in Southfields
Dreaming of more space? ✨ We're your go-to experts for quality home extensions in London and beyond! PrimeBrick Construction LTD is a trusted name with several years in the building and construction industry. As a family-run business, we're dedicated to bringing your vision to life with exceptional craftsmanship and attention to detail. Your satisfaction is our priority! Let's discuss how we can transform your home.
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dmbuilding
No reviews yet
Extension Builder in Southfields
single bricklayer with 18years experiance in the game! very neat and tidy! professional and clean!
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Gill Construction
No reviews yet
Extension Builder in Southfields
30 years of experience within the construction industry providing experience especially for loft conversions. Do call or quote for all types of types.
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EBS Builders
No reviews yet
Extension Builder in Southfields
I work with other builders running jobs also doing general building work myself. Loft and ground extensions, knocking internal walls down, putting in steels, plastering work and roofing work.
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E&E construction
Rating: 5 out of 5
Extension Builder in Southfields
With over 18 years of industry experience, our construction company specializes in high-quality house extensions and loft conversions across London and Essex. We are committed to transforming homes with expert craftsmanship, tailored design solutions, and reliable project management from start to finish. Whether you're looking to expand your living space, increase property value, or bring new life to your home, we deliver outstanding results that reflect your vision and meet the highest standards of construction excellence.
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Latest review:
Fencing- 9 Sep 2023
Ervin was polite, communicated well and worked hard to get the job done. Would hire again.
DAAS DEVELOPERS LIMITED
Rating: 2 out of 5
Extension Builder in Southfields
We are Specialists in Extensions & Refurbishments, Bathroom designing and installations, Floorings , Painting & Decorating and General Building with 20 years of experience in Building Industry
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Latest review:
Extensions- 8 Jan 2023
Avoid. A total nightmare. Avoid.
Viorel nicoara
No reviews yet
Extension Builder in Southfields
I have more than 15 years experience of the construction
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synergic design studio
No reviews yet
Extension Builder in Southfields
My name is Sanjay Venkatakrishnan and I am an Architectural Assistant (Part 2) with a Master's degree in Architecture (RIBA Part 2) from the University of East London. I have extensive experience working with various architectural software such as Rhinoceros 3D, Autodesk AutoCAD, Autodesk Revit, Lumion, V-Ray, Enscape, and Adobe Creative Suite.
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4.6

Top rated Extension Builders

Our Extension Builders in Southfields, are rated 4.6 out of 5 based on 20 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Southfields?

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

Find extension builders in Southfields with MyBuilder

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

Step 2: Compare different extension builders in Southfields

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

Step 3: Hire Southfields extension builders with confidence

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

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

What to ask a Southfields extension builder before hiring?

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

An extension builder in Southfields 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 Southfields 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 Southfields?

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 Southfields 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 Southfields 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 Southfields

Can an extension builder in Southfields help with planning permission?

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

Many Southfields 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 Southfields help with materials and finishes?

Yes, most extension builders in Southfields 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.