Extension Builders in South Wimbledon

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (23 reviews)

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Some of our top rated extension builders in South Wimbledon

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FSB Company (UK) LTD
Rating: 5 out of 5
Extension Builder in South Wimbledon
FSB is a well-organized contracting company with a team experienced in large-scale development projects with leading UK construction companies. Based primarily in London, we offer a variety of self delivered services, including complete extensions, and conversions, small works, structural alterations, steel work installations, ground work (foundations, drainage, concrete sub and superstructures), hard landscaping and paving and soft landscaping. We manage our sites carefully and have a digital site management tool kit. Our fully managed service connects skilled tradespeople with experienced construction management directly ensuring attention to detail that begins with our Contractors Proposals and continues through to practical completion and aftercare.
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Latest review:
Extensions- 17 Nov 2025
Freddie, Kaz and Dan are a great team. I felt they were friendly and professional throughout. Any slight niggles were discussed and solutions found, quickly and professionally. They were respectful and went out of their way to get on with all the neighbours. Over all I would say they are a team of very nice people, who care about what they do and take pride in achieving the result their clients are after.
Volodymyr Girkovskyi
Rating: 4.7 out of 5
Extension Builder in South Wimbledon
I am responsible, I do my job carefully, I have extensive experience in building and renovating houses.
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Latest review:
Handyman- 9 Oct 2025
Good job, done as agreed
PB BUILDER LTD
Rating: 4.7 out of 5
Extension Builder in South Wimbledon
I have a over 19 years experience as a multitrader in building industry. From 9 years I have LTD company and few teams of my guys. We do big and small projects like: house extensions, full house refurbishment,loft conversions,kitchen and bathrooms fittings, all type of carpentry work,blocks and pavings,fencing, painting and decorating,plumbing and electric jobs.
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Latest review:
Extensions- 8 Sep 2024
Paulo and his team, was so lovely, they got on with the job, complete it very quickly and was very patience with the delays so had to came back and finish the job. Would definitely call Paulo back for other work around the house
SIM Building Services Ltd
Rating: 5 out of 5
Extension Builder in South Wimbledon
SIM Building Services Ltd is a construction company providing services in Croydon/London and surrounding areas. Our team has over 20 years of combined experience in residential, commercial and interior/exterior construction across all trades. We’re dedicated to a high level of customer service and will take the time to make sure that you are comfortable with the services we are providing.
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Latest review:
Extensions- 18 Sep 2022
Dritan is genuine and a man who keeps to his word. Very happy with him and his team. 100% recommend to others.
WILTON BUILDING SERVICES ENGINEERING
Rating: 5 out of 5
Extension Builder in South Wimbledon
We serve all construction infrastructure; building, electrics, plumbing, carpentry, and more. Our services span from initial planning, through start-up and operations. We have helped customers to complete their projects, and improving their life. Characterized by the quality of our work and our persistent drive to deliver the most successful outcomes, we align our capabilities to our customers’ objectives to create a lasting positive impact.
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Latest review:
We had an excellent experience with Wilton. They made the process straight forward and quite painless from start to finish. Everything proceeded efficiently and we are thrilled with the final results. Two beautiful new bathrooms, finished on time. A great experience from start to finish.
M & M ROOFING AND LOFTS LIMITED
Rating: 5 out of 5
Extension Builder in South Wimbledon
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.
Home Renovations Ltd
Rating: 5 out of 5
Extension Builder in South Wimbledon
We're a building company specializing in house extensions, loft conversions and refurbishments. Our clients come from New Malden, where we're based, but also surrounding areas. The vast industry experience enables us to provide valuable advice, professional services and individual approach, benefiting our customers. As we understand trust and credibility are crucial when undertaking such projects, we arrange viewings and provide customers with references and photos of our most recent projects.
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Latest review:
Extensions- 24 Jun 2017
We had a large piece of work done by Johan and his team. It was a 4m single storey rear extension with new kitchen installation, converting the old kitchen into a downstairs bathroom and utility room, plus other bits and bobs like new boiler, rear patio. We got quotes from a few builders, Home Renovations weren't the cheapest, they were actually towards the higher end. But we went and saw their previous work and spoke to some of their other clients. The work was done to a high quality and the clients seemed to be happy so we decided to go with them. Johan's team are very hard working, professional and polite. Pawel and his team of builders, bricklayers, plumbers, electricians, etc. would turn up before 8am and finish at 6pm working solidly throughout the day. There is Magda as the project manager who keeps you in the loop, and answers any of your questions (which we had many). There is Michaela on the finance side who keeps you up to date with the budget. Our budget went over by 5% with "variations" (extra work or materials) but it was always communicated why and the work wasn't done without our approval. Pawel would give his recommendations but the final word would always be ours. But these things can add up. Overall we were very happy with the build, it was done to a very high standard. They also finished it before time. They said it would take 12 weeks in fact they finished it in 10 weeks which was amazing as you would normally expect these things to go over.
PROHAUS LTD
Rating: 5 out of 5
Extension Builder in South Wimbledon
We have a number of years experience of working in the industry, we have done a range of different projects over the years including domestic work along with commercial work and shop fitting. We can take on projects of all sizes, from small renovation works to project managing your new extension.
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Latest review:
Extensions- 18 Oct 2017
I asked Prohaus to undertake a ground floor side return and rear extension as part of the refurbishment of my flat in Putney. I have used many builders before on development projects but was especially impressed with Naz and his team on this build. It was the first time I used them and won’t be the last. Naz was great to work with, the whole build went smoothly and he always had a positive attitude and solution to any unexpected issue. The build came in on time and budget which was very impressive in itself. All in all I would highly recommend him.
Sirius Construction Surrey Ltd
Rating: 5 out of 5
Extension Builder in South Wimbledon
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!
Revolutionary Spaces Ltd.
Rating: 4.3 out of 5
Extension Builder in South Wimbledon
We are a famiy run building firm who specialise in basements & extensions,loft conversions,renovations and refurbishments and also bespoke kitchen and bathroom fitting.Combined we have over 45 years experience with me personally having 19 years as a Carpenter and Joiner.We also specialise in Roofing works. Flat roofs, pitched roofs. Dormers,mansards. Asphalt and specialist lead work. We also have specialist heritage joinery and roofing experts with appropriate heritage qualifications.
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Latest review:
Extensions- 10 Nov 2020
An outstanding team who clearly take pride in their work, it is the little things they think of that make a massive difference. We kept progress notes and any issue discussed and resolved proactively. Carried out some additional work that wasn’t initially quoted and did not charge extra. Shane himself has a fantastic desire to work and deliver. Even through the Covid, with most shops closed, Shane delivered. Would not hesitate to recommend.
Sergiu B
Rating: 5 out of 5
Extension Builder in South Wimbledon
first and second fix of carpentry, furniture, plumbing, ...
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Latest review:
Job well done. I am very happy with the outcome. He gave good advice, knows his business, does good work and also helped out with other little things in the house. 100% positive I would recommend him to friends and neighbours
Proto Technica - Building Solutions Ltd
Rating: 4.8 out of 5
Extension Builder in South Wimbledon
An established LIMITED company with a professional and flexible approach to clients. We deal with jobs such as home refurbishments, painting/decorating, plastering, renovations, extensions, outdoor works, etc. We have an experienced team specializing in a wide range of trades ready to tackle your jobs!
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Latest review:
Restoration & Refurbishment- 28 Dec 2024
We are impressed with our new kitchen and bathroom, such a transformation. Receiving so many compliments. Very dedicated and skilled team. Will definitely recommend.
B&CE CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in South Wimbledon
I am versatile carpenter with a background in residential, commercial, and municipal construction and remodeling. With a strong foundation in carpentry and woodworking, I have expertise in framing, trim, windows, doors, and siding. I possess in-depth knowledge of the construction process, from material selection and techniques to tools and equipment.
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Latest review:
Carpentry- 14 Apr 2026
Great
Dan Stevenson
Rating: 5 out of 5
Extension Builder in South Wimbledon
I have been running my own business for 9 years and I specialise in construction carpentry and building. Over the last 4 years I have mainly focused on extensions and refurbishment work, but have also worked for contractors that undertake small maintenance jobs through to large new build projects. I undertake any size of job, such as 1st and 2nd fix carpentry and kitchen fitting, through to refurbishments and extensions.
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Latest review:
Carpentry- 2 Dec 2018
Great experience with Dan. Completed the work to a really high standard.
Muresan Construction LTD
Rating: 5 out of 5
Extension Builder in South Wimbledon
I am a general contractor with over 15 years of experience in construction industry. My company's specialty is residential fit out and refurbishing. No matter how big or small is the project, we can take a project from inception to the final stage, from new additions to simple room designs. Our motto is "customer satisfaction first ".
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Latest review:
Bathroom Fitting- 8 Oct 2018
Lucian and his team are great, he was so helpful in the planning stages of our bathroom I wasn’t sure exactly how we wanted it but lucian offered his expert advise and the bathroom looks amazing. He was transparent with his prices and no surprise costs, quality of work was amazing! Highly recommend.
London Builders & Decorators
Rating: 5 out of 5
Extension Builder in South Wimbledon
London Builders & Decorators has been operating since 2016 in London. We our general builders who carry out Extensions, Lofts and Full Renovations. Why not shortlist us and come visit one of our sites. We run 5-7 sites at once so there will be one nearby. We try to keep things simple so the customer knows what is being done. Building work should be explained and expectations should be managed. We are a Member of the Federation of Master Builders & Gas Safe Registered
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Latest review:
Tiling- 22 Mar 2018
very professional work, the team was very flexible, patient and helpful with me adding some ideas along the way. I am very happy with the results.

4.3

Top rated Extension Builders

Our Extension Builders in South Wimbledon, are rated 4.3 out of 5 based on 23 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in South Wimbledon?

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

Find extension builders in South Wimbledon with MyBuilder

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

Step 2: Compare different extension builders in South Wimbledon

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

Step 3: Hire South Wimbledon extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in South Wimbledon, 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 Wimbledon extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a South Wimbledon extension builder before hiring?

Before hiring an extension builder in South Wimbledon or extension building company in South Wimbledon, 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 Wimbledon?

An extension builder in South Wimbledon 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 Wimbledon 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 Wimbledon?

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 Wimbledon 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 Wimbledon 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 Wimbledon

Can an extension builder in South Wimbledon help with planning permission?

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

Many South Wimbledon 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 Wimbledon help with materials and finishes?

Yes, most extension builders in South Wimbledon 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.