Extension builders in South Croydon

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (16 reviews)

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Some of our top rated extension builders in South Croydon

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Alfa style LTD
Rating: 5 out of 5
Extension Builder in South Croydon
Specialists In Loft Construction,house extension and renovation . We can convert your loft to maximise your living space,by converting it to create a new bedroom,bathroom,office or playroom. Alfa style ltd the primier home conversions company you can trust for reliable,honest and quality workmanship. Here at Alfa style ltd we offer high quality loft conversion in South West London and surrounding areas.
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Latest review:
We had the pleasure of working with Alfa Style Limited on our loft conversion and we can recommend them highly and without reservation. Their work is incredible, attention to detail outstanding – our build was done with care and precision. They turned up on time every day, worked incredibly hard and quickly. In addition, they were extremely clean and tidy in the workplace – they never left the worksite in disarray. This is the first time we have done such a big project – Ruslan, Slava and their team were amazing. They were brilliant at explaining what was going to happen, day by day, week by week and translated the more technical information! No question or query was too much. The service after the build had finished has also been great, calls to check everything is OK and any queries we have, they are only a phone call away. We have had so many compliments from family and friends who have seen the finished build … it has made a huge difference to our house, we could not be happier.
Venus Constructions Ltd
Rating: 5 out of 5
Extension Builder in South Croydon
Hi, thanks for taking time reading.. our team at Venus Constructions specialises in all types of residential works and our range of services covers complete refurbishment, conversions, external buildings, patio, turf, driveway, decking, fencing, brickwork, blockwork, rendering. Depends of team member we have years and the necessary experience based on the works needed. Listening to the clients needs we assure with punctuality high quality results and workmanship of our friendly team.
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Latest review:
Landscaping- 28 Mar 2022
Gianni and his friend did an amazing job on our garden grass and planter. They came to see the garden before providing us with the quote. They were very professional, punctual thorough and quick. We were very impressed that they started the job the following day and that they were able to provide all the materials. We will definitely recommend them to friends and family.
JM Building Service
Rating: 4.7 out of 5
Extension Builder in South Croydon
Hi my name is Joe from JM Building Service and I would like the opportunity to come and have a look at any works you require my services for. I look forward to meeting you. Thank you.
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Latest review:
Bathroom Fitting- 14 Mar 2025
My previous bathroom fitters did a very bad job with the bathroom and cloakroom toilet and left it unfinished. I am so glad I went with JM Building service as Joe and Martin completely transformed both rooms. They rectified the previous fitters errors and completed the rooms. Joe didn’t just rush through the job to get it done quickly—he took his time, ensuring every detail was finished to a high standard. He worked meticulously, making adjustments until everything looked exactly as it should, rather than settling for ‘good enough.’ His dedication to quality and precision was evident throughout, and the end result speaks for itself. As well as being very good at what they do, they are friendly, reliable, trustworthy and hardworking. I have already booked them in for another job and requested a quote for another. I highly recommend JM Building services for their professionalism and craftsmanship.
Warthog Group Ltd
Rating: 5 out of 5
Extension Builder in South Croydon
At PSP, previously named Warthog Group, we deal with all manners of construction, both domestic and commercial, specialising in bespoke interior fit outs and joinery. We have recently started property developing on behalf of clients; taking it from planning stages through to the completion of multiple new builds, handling all the project management. We pride ourselves on working closely with our clients in order to ensure total customer satisfaction and finished projects of the highest quality.
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Latest review:
Joinery & Cabinet Making- 31 Jul 2018
Overall great bespoke cupboard however some final touch should have been done after Xmas period but builder never answered back
Jwolfconstruction ltd
Rating: 5 out of 5
Extension Builder in South Croydon
My name is George and I'm running J Wolf Construction building company. I can provide a lot references from happy customers in sw London.
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Latest review:
Extensions- 26 Nov 2019
Great on delivery, good on project management....rate them very high on integrity and transparency
ARPconstruction
Rating: 5 out of 5
Extension Builder in South Croydon
New on My builder not in bussines. Hello I am Alex, after 13 years working on the construction site 4 years ago i opened my own building company.At the moment I have 12 workers within these 12 works we cover a wide variaty of highley skilled services.I am the director of EvoBuild, and i will be responsible for the work that is carried out.We work monday to sunday to get the job done to a high standard.I will come out and discuss the job in person and endever to answer any questions you may have
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Latest review:
Handyman- 23 Mar 2022
Alex and his crew did a fantastic job on my property. They did the work on-time, to budget and to a very professional standard. The work required a wide variety of skills from painting, carpentry, plumbing and electrics. As I was unable to be on site Alex constantly kept me updated on progress with photos and videos. All in all I would highly recommend Alex and his team.
professional polish builder(london)
Rating: 5 out of 5
Extension Builder in South Croydon
I'm a builder (carpenter) with 19 years of experience in England. I do loft conversions and extensions - all building works. Carpentry and joinery is my main profession. I have a qualified bricklayer, electrician, plumber and others on my team who are happy to help. All works done by us coming with warranty and insurance.Dear potential client beware that we do not undertake structural building works without architectural drawings, structural engineer calculations etc. No time wasters please!
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Latest review:
Extensions- 26 Apr 2018
Professional Polish builders (london) ltd,?this is a suitable name for this company. They built an extension and loft for me in the time standards set. They aren’t a cheap service but the professionalism of this boys goes beyond and above. I’ve seen a lot in my life and it was the third extension I designed for myself as I’m architect. It is hard to find an honest builder who will tell you the truth about what is waiting for you during the works. The job was done relatively quickly even when I changed my mind a few times and the weather this winter was cruel but Adam and Martin were always positive so do not believe any one who gives a fixed price and time - it’s impossible to do. Adam and Martin are fantastic organizers and skillful professional builders, his team are friendly,very funny and hard working guys. Open minded guys who will tell you straight on what things you can save money on and what not to. My dog has fallen in love with them. Safety and common sense is a priority to the crew. I would recommend these boys to everyone. thanks for your help and hard work!
l.d Construction
Rating: 4 out of 5
Extension Builder in South Croydon
Always on time hard-working tidy and clean will work weekend's if need be
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TT solutions
Rating: 5 out of 5
Extension Builder in South Croydon
Welcome to [ TTsolutions ], where craftsmanship meets creativity. With over [ 12 years ] of experience in the industry, we specialize in delivering top-notch carpentry and joinery services tailored to meet your specific needs. #### Our Services Include: - **Custom Furniture Design:** We create bespoke furniture pieces that blend functionality with aesthetics, perfect for any space in your home or office. - **Cabinet Making:** Our skilled craftsmen design and build high-quality cabinets that are both stylish and practical, providing you with ample storage solutions. - **Interior Joinery:** From doors and windows to staircases and architraves, we provide exquisite joinery work that enhances the beauty and functionality of your interiors. - **Outdoor Structures:** We also specialize in designing and constructing outdoor furniture, decks, and pergolas that elevate your outdoor living experience. #### Why Choose Us? - **Expert Craftsmanship:** Our team is dedicated to quality, ensuring every project is completed to the highest standards. - **Personalized Approach:** We work closely with you to understand your vision and bring it to life, ensuring complete satisfaction. - **Timely Delivery:** We respect your time and strive to complete all projects efficiently without compromising on quality. - **Sustainable Practices:** We prioritize eco-friendly materials and practices, ensuring our work is not only beautiful but also responsible. #### Experience You Can Trust With a passion for woodworking and a commitment to excellence, [ TTsolutions ] has established a reputation for reliability and quality. Our portfolio showcases a wide range of successful projects, demonstrating our versatility and attention to detail.
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Latest review:
Windows & Doors (Wooden)- 12 Jul 2026
Great job, professional, punctual and efficient. Will definitely hire again in the future!
RS Homes
Rating: 5 out of 5
Extension Builder in South Croydon
We offer an affordable and competitive service locally for: Landscaping, Gardening & Garden Maintenance, Decking, Restoration & Refurbishment, Extensions, Conversions - General, Loft Conversions. With over 15 years experience in the construction and landscaping industry you can rely on us to provide a professional, punctual and trustworthy service. No obligation quotations provided upon request.
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Latest review:
Landscaping- 3 Jun 2021
On our first meeting I felt comfortable and was glad of input from Robin. Agreed to a plan and only had to wait a few weeks before work could start. All preparations made to protect my drive before skip arrived. All work carried out in a very professional manner and team were very polite and friendly. Even though weather was against ground works they provided shelter so work could continue. I’ve been very pleased with their approach and can’t fault the outcome. Although met with a couple of delays on garden furniture, (nothing to do with Robin and his team, circumstances outside control)all other aspects of this job have met with my approval. Was apprehensive of having people in but can honestly say there have not been any issues and when the skip was removed within an hour, Robin was back on site to clear and wash down the drive. So looking as good as new. It’s been a pleasure having them on my property and will look at using their services again in the future should the need arise. Nothing too much bother. So my thanks to them all.
New Design
Rating: 4.7 out of 5
Extension Builder in South Croydon
My name is Carlos, I have a construction company alongside my business partner and daughter Claudia. We are dedicated in everything related to painting, decorating, plastering, tiling, landscaping, flooring, interior finishings and general building works. We are professional, honest and hard-working individuals. Flexible and reliable builders with over 30 years of experience (operated in Spain and currently operating in London for more than 10 years). We guarantee we will not disappoint you. We offer ‘no obligation’ quotes. Photos and references upon request.
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Latest review:
Painting & Decorating- 3 Sep 2024
Great, reliable contractors. Had a full flat repaint job with some minor repairs (blinds fixing, handle replacement). Claudia was very efficient and responsive in communication. All was arranged pretty quick, appointment attended on time and kept to time schedule agreed. Had done a great job with repaint and provided reasonable rates. Also helped out with few minor repairs so I didn't have to get someone else. Very happy with the service , will certainly hire again. Thank you guys.
M & M ROOFING AND LOFTS LIMITED
Rating: 5 out of 5
Extension Builder in South Croydon
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.
IDL Contractors Ltd
Rating: 5 out of 5
Extension Builder in South Croydon
I am in the building industry for more than 20 years, nevertheless, my company was registered in 2017. Our team is specialized in doing extensions, house conversions and refurbishments.
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Latest review:
I can't recommend IDL highly enough, Lubo and his team were efficient, on time and completed the work quickly with no fuss, plus they gave us a payment plan and time frame that suited us. Our garage conversion has transformed our house, it feels so open and light, thanks Lubo xx
Coppermill Projects
Rating: 5 out of 5
Extension Builder in South Croydon
Coppermill Projects is a building company that offers high standards of work for competitive prices. Our main area of work is South East London and surrounding Kent areas. We have 20 years experience in the industry. The main works we undertake are extensions and property refurbishments although we take on smaller works as well.
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Latest review:
Conversions - General- 24 Apr 2019
Ben is a very kind person. I am very happy to have Coppermill Construction to do the jobs. His quotation is well defined with all the details about the job and the services he will provide from start to finish. He has done a fantastic job together with his team workers and has completed the job on time. He is reliable and professional. He always leave the property tidy and clean at the end of the day for the next day start.. I will not hesitate to offer him to do my next building project. I will highly recommend Coppermill Construction to others. A big thank you to Coppermill Construction Team. Well done guys and keep it up.
Biggin Renovations Group Ltd
Rating: 5 out of 5
Extension Builder in South Croydon
Biggin Renovations Group Ltd is a family run business, we strive to undertake all aspects of building works to exceptional standards. Working alongside clients to bring their vision to life is our top priority & we pride ourselves in being honest, efficient, reliable & professional whilst doing so. We carry out all types of building works from new build projects to installing kitchens & bathrooms. Our ambition is to continuously evolve, we are always looking to take on innovative designs.
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Latest review:
Extensions- 3 Jun 2025
From start to finish, Connor, Andrew and their team at Biggin Renovations Group Ltd provided exceptional service. We had a double storey side extension and garage connection to the house that included 2 new bedrooms and an en-suite completed. The team confirmed a 12 week timescale, and a week by week expectation of work to be completed, along with the payment plan which was all confirmed via contract. They stuck to their time schedules and completed on time. The price was within our budget. Along with Connor and Andrew, their team of subcontractors were very kind, helpful, polite and professional in the way they presented themselves. Very happy with the work that was completed, we will call them for our planned single storey extension in the near future. Highly recommend them.
AH buildings service
Rating: 5 out of 5
Extension Builder in South Croydon
I guarantee you the quality work an the best price
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Latest review:
Bricklaying- 10 Nov 2023
An absolutely excellent job. Both my neighbours went over to ask for AH's contact details after seeing his excellent work. Really pleased I picked him. Great value too. Very reasonable price. Highly recommended.

4.3

Top rated Extension Builders

Our Extension Builders in South Croydon, are rated 4.3 out of 5 based on 16 reviews from customers like you.

Quality screening

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

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

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

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

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

Find extension builders in South Croydon with MyBuilder

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

Step 2: Compare different extension builders in South Croydon

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

Step 3: Hire South Croydon extension builders with confidence

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

What to ask a South Croydon extension builder before hiring?

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

An extension builder in South Croydon 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 Croydon 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 Croydon?

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 Croydon 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 Croydon 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 Croydon

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

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

Many South Croydon 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 Croydon help with materials and finishes?

Yes, most extension builders in South Croydon 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.