Extension Builders in South London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

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Some of our top rated extension builders in South London

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H&S CONSTRUCTION
No reviews yet
Extension Builder in South London
I’m a reliable and hardworking bathroom fitter with experience in installing bathrooms, showers, tiling, and general plumbing work. I take pride in delivering high-quality workmanship and making sure every job is completed to a professional standard. I work across the local area and am happy to travel for the right job. My services include bathroom installations, shower trays, tiling, silicone sealing, pipework adjustments, and general bathroom repairs. I focus on clear communication, keeping the workspace tidy, and making sure customers are happy with the finished result. Whether it’s a full bathroom renovation or a small repair, I aim to provide a reliable, honest, and efficient service.
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Bull&Chisel
Rating: 5 out of 5
Extension Builder in South London
We are an experienced business focusing on all building, renovations, kitchen and bathroom fitting as well as painting. Feel free to view our web page and request a free quote.
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Latest review:
I was planning an extension to my kitchen, which included a complete refurbishment and the addition of a shower room. I also needed somebody to coordinate all aspects of the project, including recruiting the right resources for the building work, electrics etc. I was extremely pleased that Bull & Chisel were recommended to me. From the start, Bryan and Warren gave me the confidence that they were able to complete the project to my satisfaction. They were happy to continue working with me throughout and they liaised effectively with partners they brought in at key stages to ensure that each task was completed to my satisfaction. As for their own work, I cannot fault them. There are always unexpected challenges that arise in these types of project. Bryan & Warren consider these very carefully before providing a solution. They pay close attention to detail and that has resulted for me in a super new space. I highly recommend Bull & Chisel and have already asked them to sign up for more projects in the near future!
Ava Solutions
Rating: 5 out of 5
Extension Builder in South London
Ava solutions is a plumbing and property specialist that offers high standards we have a dedicated plumbing team along with other tradesmen to fulfil your requirements around the house from refurbishments to extensions and HMO’s. Bathrooms are our specialty and where we started out and have a dedicated fitting team. All works are carried out by individual professionals in there field, and not a one man does all giving you the best possible Finnish. We are able to offer plenty more reviews and pics via other sites/socials
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Latest review:
Bathroom Fitting- 21 Aug 2019
Love my new bathroom. Bretts team were helpful and polite. Would recommend Brett and employ him and his team again if needed.
Braestone Construction Ltd
Rating: 5 out of 5
Extension Builder in South London
Professional, trusted and reliable building contractor based in Essex, Braestone Construction is a team of skilled and highly trained construction professionals. Over 20 years experience of planning, building and development. General residential building work including extensions, renovations and new build. Groundworks, carpenters, electrician and plumber all direct employees. We also work with trusted and reliable subcontractors such as bricklayers, scaffolders etc.
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Latest review:
Extensions- 24 Aug 2022
Lovely team of guys who are all very skilled. Damien great to deal with. Would recommend. Nick Bowen
AW BUILDING SERVICE
No reviews yet
Extension Builder in South London
We are hard working and honest team. We do All building works since 2006. We are also NICEIC register. Kind Regards. Adrian Wator.
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Dr Wall Ltd
Rating: 5 out of 5
Extension Builder in South London
we have 15 years of experience we do everything related to walls inside and outside the house If you are looking for a solid company, please contact us, we always perform work to a high standard, we protect floors, windows and other objects from getting dirty, and we leave everything tidy behind us.
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Latest review:
Plastering- 27 Jun 2025
Fabian and Lucas, did an amazing job plastering a large space and completed quickly and left no mess. Highly recommend.
Paul Stevens
No reviews yet
Extension Builder in South London
Friendly, reliable and professional service. All brickwork undertaken. No job too small
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A J Morris Plastering And Construction
Rating: 3.5 out of 5
Extension Builder in South London
A J Morris Plastering And Construction is a company that specialise in all aspects of Construction to small room refurbishments to extensive structual work to landscaping and creating lovely spaces outside. We have over 15 years of experience in the construction industry so no job is to small or to big for the company and the jobs are always completed to all regulations and also to the highest standard. Customer satisfaction is our number one goal.
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Latest review:
Plastering- 15 Jan 2025
Removing my review due to change of opinion.
Core Design and Build Ltd
No reviews yet
Extension Builder in South London
I'm Callum from Core Design and Build Ltd we are based in Hertfordshire, specialising in residential refurbishments, loft conversions, extensions and new builds. We have over 40 years of experience in the construction industry. Our team is made up of a professional team that completes every project to a very high standard.
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Real Hammer
No reviews yet
Extension Builder in South London
We offer a full range of services for the construction of lofts and extensions.
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Prestige facility management ltd
No reviews yet
Extension Builder in South London
A dedicated team of professional tradesmen who specialise in Design, Build and property renovation across the whole sector with all the relevant manpower in each specialised trade, we are sure to accommodate for all building needs.
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Guarded Properties
Rating: 4.7 out of 5
Extension Builder in South London
All works covered by £1m Public Liability All Building Works New Builds Extensions Refurbishments Outbuildings Roofing Bricklaying Electrics Carpentry GRP Roofing Asbestos Roofs Flooring Fascias Guttering Plastering Tiling Painting Decorating Ground Works Patios & Paving Fencing Carpeting Liaising with Building Control & Planning Your one stop construction shop!! High quality works Competitively priced Will beat any formal quotation on like for like basis!
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Latest review:
Extensions- 4 Jun 2022
Danny designed and built us a garden room to fit a challenging space at the bottom of our garden. His communication from start to finish was excellent, and he did an brilliant job on the room, inside and out. I would recommend Danny for any job, big or small.
Jk services south limited
No reviews yet
Extension Builder in South London
We undertake all building work and can supply all trades to complete jobs to a very high standard. We are trust worth and reliable and every job we undertake is done with professionalism and to the best of ours and the customers expectations.
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J C CONSTRUCTION GROUP LTD
No reviews yet
Extension Builder in South London
JC Construction Group Ltd are a building project company built from good family values and years of excellent work and experience. We cover every aspect relating to Building and Construction. From the groundwork through to giving you the keys at the end. Its what we do and its what we do well.
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CIVIBUILD LTD
No reviews yet
Extension Builder in South London
One stop service of design, planning and implementation of your home renovation project.
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Haymore Ltd
No reviews yet
Extension Builder in South London
Built on over a decade of experience across just about every sector of construction, we have the know-how to get your project done. If you're after a loft conversion, rear extension, annex, or even a complete house overhaul, we can do it! Truthfully, almost any builder can do all that, so what makes us stand out from the crowd? We set up Haymore to be different from day 1. Our motto is “Construction Simplified” and we really believe that is what we offer.
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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 19 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.