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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Buildleader
Rating: 5 out of 5
Extension Builder in South London
Our home refurbishment company BUILDLEADER is based in London. We offer full house renovation requiring extensive electrical, plumbing and structural work. All of our tradesman are professionals with over 15 years of experience who get the job done on time, on budget, and to the highest standard. We handle every project with the utmost competence and respect.
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Latest review:
Bathroom Fitting- 28 Mar 2022
Good plumber, call them in for shower replacement
Andrii
No reviews yet
Extension Builder in South London
Carpenter
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Home Renovation City Ltd
Rating: 5 out of 5
Extension Builder in South London
SKILLS 1 .Plastering 2. Lay Bricks 3. Tiles 4.Renderin 5. Painting decoration 6. Coving 7. Dry Lining 8.Flat Ceilings 9.Renderin 10 Extensions Hello, I am Eneo, proud owner of Home Renovation City Ltd and here’s a little about me: With many happy and returning customers over the last 10 years, you can be sure of being well looked after. My aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I carry out all work myself and will be your single point of contact. My customers are accustomed with the outstanding quality of my projects, by sourcing quality materials with experienced craftsmanship I create truly bespoke masterpieces lasting my customers many years. Year guarantees are included as standard on all completed work.
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Latest review:
Painting & Decorating- 23 Jul 2022
Eneo painted One bedroom flat in a highly professional manner in a very tight schedule. He was very tidy and provided High quality service. Highly recommended
LLOCKBUILDING
Rating: 4.9 out of 5
Extension Builder in South London
"PUTTING THE TRUST AND RELIABILITY BACK INTO BUILDING" At Lock Building London, we specialise in helping you grow your vision by creating the dream home you've always imagined. We understand that your home is a reflection of your aspirations and lifestyle. Our team of skilled craftsmen will turn your ideas into reality, expanding your vision one brick at a time. From innovative designs to quality craftsmanship, we ensure that your home improvement project aligns perfectly with your vision and lifestyle. With our expertise, your dream home will not only meet but exceed your expectations, allowing your vision to flourish and your dreams to come to life
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Latest review:
Conversions - General- 15 Apr 2026
Luke and Diti are both amazing guys for this project. Honestly speaking they aren't the cheapest quote, but they are definitely beyond expectations. Luke was the only builder who gave a full transparent quote on each item and what was needed for the conversion. Really quick work and good planning because I have 2 cats and they did everything with enough people onsite to minimise the time. Speaking of work, it is good, we kept in communication and they were always happy to explain and adjust slightly according to my concern/question. Leave this comment after the work has been done for few months and everything is solid.
D&C Building
Rating: 5 out of 5
Extension Builder in South London
Top quality, reliable team and always in time !
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Latest review:
Fencing- 9 May 2022
Very nice and polite guy. He did his job as promised. The price was fixed and job was done neatly. He tidied away all the rubbish and out back everything in order which I was very pleased with. The communication was great and everything went very well. We enjoy our garden more than before now.
Shpetim troka
Rating: 5 out of 5
Extension Builder in South London
Troka Construction specializes in home refurbishments, extensions, and a wide range of home improvements. With a focus on quality craftsmanship and personalized service, we bring our clients' visions to life with dedication and attention to detail.
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Latest review:
Carpentry- 30 Apr 2026
Great communication and was able to come and do the job quickly after first message. Job was completed to a great standard (skirting boards and some scotia)
M & M ROOFING AND LOFTS LIMITED
Rating: 5 out of 5
Extension Builder in South London
We design for life, as well as style. That's why clients have trusted Mew developments for the past decade. We cover all aspects of the building trade quality is at the heart off everything we do. All of our tradesmen are passionate about creating solutions that are comfortable and useful. They are all individually trained to meet our exacting standards and, more importantly, yours.
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Latest review:
Extensions- 22 Oct 2018
Choosing MM builders was the best decision we could have made. Initial meetings: They took time to ensure they understand our work. They never complicated matters nor tried to hide things in any fine print and provided us with a estimated schedule and explained we would be kept up to date at all stages. Works: Their knowledge and work ethic is amazing and is reflected in their work. They gave us confidence and built trust very quickly. Always willing to go the extra mile and used their expertise to help us rectify issues or make suggestions in areas we would have never noticed ot thought of. Sam, Ross, Bill & Harry were so pleasant to have around the house. They were very conscious of the 3 young children in the house of which one has additional needs. They minimised disruption which is very difficult when doing major work in a areas and were always friendly and polite. We had no issues in having them inside our property which is very important when completing works taking just over 5 months. They work with specialist tradesman (tiler, plasterer, etc.) who are equally good at their trades. MM were very professional when it came to liasing with Building Control and made sure they were involved and visited at all key points. The aftercare we received was as good as we had received throughout the process. I have no hesitation in recommending MM for any building works. If I was to ever undertake any works in the future, it would be by them and only them.
Richard Group
No reviews yet
Extension Builder in South London
We are a trusted company providing a comprehensive range of repair, maintenance, and improvement services for residential and commercial properties. Our skilled team handles everything from everyday fixes and general upkeep to larger projects, always delivering high-quality workmanship with efficiency and care. We pride ourselves on reliability, professionalism, and clear communication, ensuring every job is completed on time, within budget, and to the highest standard.
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SJR Total Build Ltd
New on MyBuilder
Extension Builder in South London
SJR TOTALBUILD LTD
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Sirius Construction Surrey Ltd
Rating: 5 out of 5
Extension Builder in South London
We are professional builders with 20 years of work experience. We do extensions, loft conversions, new houses from foundation to the final touches. You get quality and quantity at the same time as we are perfectionist in our work and also hard worker. We have many reference work upon request.
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Latest review:
Extensions- 15 Jul 2019
Norbert and his team have transformed our house to the most amazing standard, we would recommend them to all our friends and family. The work schedule was managed so well, with minimal disruption to us with two young boys. We had a loft conversion, main bathroom renovation, utility room, downstairs toilet and a 4 meter kitchen extension. We stayed in the house whilst the work was being completed and Norbert and his team fitted in so well, it actually feels weird not seeing them in the house. They are such a lovely bunch of people. We are over the moon… on time, on budget and finished to a high standard. If we ever undertake renovation work again, Norbert and his team would be our 1st call!
Building life uk limited
Rating: 4.8 out of 5
Extension Builder in South London
My skills are :Tiling :brickwork :extensions :loft conversions :partition : painting :carpentry E.t.c :you name it we do it I've got a team together who are hard working men who are very motivated on working together with our clients we always keep everyone who we do work for happy and still get recommended I work references that I can provide (We haven’t been online at my builder over a year now but we have been working out from my builder we got lots of work to prove)
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Latest review:
Bathroom Fitting- 9 Oct 2018
Ozay arrived on time and finish the job to a high standard I've used the shower for over a month now and no leaks! Would use again!
KK Construction London Ltd
Rating: 5 out of 5
Extension Builder in South London
Hello my name is Robert and I have 27 years of experience in all fields. When it comes to business, I have done a lot of work all around England including loft conversions, extensions, electrical work, refurbished houses inside and out, plumbing, gas safe boiler installations, partitions, ceiling, doors, kitchen, bathrooms, painting, tiling, double glazing, flooring.
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Latest review:
Bathroom Fitting- 14 Sep 2021
Robert and his team were fantastic very happy with the end result that was finished within the promised time I would certainly use them again
One Take Solutions Ltd
Rating: 5 out of 5
Extension Builder in South London
Experienced plumber and handyman. Happy to provide fixed price, guaranteed work for tenants and homeowners alike.
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Latest review:
Plumbing- 4 Aug 2018
Able to fit an outside tap for us quickly and finished to a high standard. Very professional and passionate about the job. Also took a look at another plumbing issue we had and gave us an honest reply on what our best options were.
Dos kapas
No reviews yet
Extension Builder in South London
New building , extensions, remodelation , maintenance, bathroom refurbishment, kitchen refurbishment painting and decorating plumbling restouration etc
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Property3574
Rating: 5 out of 5
Extension Builder in South London
i have been in the building industry since 1980. Carpentry & Joinery is not my only trade. Electrical, Plumbing, Locksmithing,Security Alarms, & General Maintenance. All my work is to a very high standard with a very good eye for detail.
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Latest review:
Electrical- 13 Jun 2017
Aksel came and inspect our dishwasher socket that wasn't working. It was a fairly straightforward job and he came on a short notice which we appreciated.
Ndoci construction ltd
New on MyBuilder
Extension Builder in South London
We are a dedicated construction and renovation company delivering high-quality work across residential and commercial projects. From small repairs to full-scale builds, we handle every stage with precision, reliability, and attention to detail. Our goal is simple: to bring your vision to life on time, on budget, and to the highest standard.
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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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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.