Extension Builders in New Malden

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 New Malden

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MJ Carpentry and Build
Rating: 5 out of 5
Extension Builder in New Malden
hi i’m matt im a carpenter and builder working on site for 26 years really enjoy it got a eye for detail have to be clean and tidy got a great team of all trades check out my website!
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Latest review:
Carpentry- 1 Dec 2024
Matt and his team did a great job building my Summer House. At every stage they checked that their work was fulfilling my needs, and took on board my suggestions. The whole job was completed within budget and time. I would have no hesitation to engage them again, should the need arise. Thanks Matt.
MM Tiling Services
Rating: 5 out of 5
Extension Builder in New Malden
Hi, I’m Michal, a professional bathroom fitter specialising in complete bathroom renovations from start to finish. I provide a fully managed service, covering everything from strip-out and preparation to plumbing, tiling, installation, and final finishing touches. Whether it’s a full bathroom refurbishment, a modern upgrade, or a bespoke design. I work cleanly, efficiently, and always aim to minimise disruption to your home. Clear communication, reliability, and customer satisfaction are at the heart of every project I take on. From small updates to full transformations, I ensure every bathroom is completed to the highest standard — on time and within budget. If you're looking for a skilled and dependable bathroom fitter, I’d be happy to help bring your vision to life. Recommendations from previous clients are available.
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Latest review:
Tiling- 11 Oct 2015
Tiled floor good job
M.H Brickwork
Rating: 5 out of 5
Extension Builder in New Malden
Welcome to M.H Brickwork. We are a family run business of skilled and qualified bricklayers who have over 30 years experience in all aspects of the bricklaying trade. We pride ourselves on the quality of all our work. You will find our pricing very competitive.
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Latest review:
Michael did a number of jobs for us including a front wall, small garden walls either side of the front path and restructuring the path to include front steps. Michael was reliable and able to give us ideas on what could be done. He is polite, his work is of a high standard and he approaches his work with real professionalism. We are very happy with his work and would recommend him.
Nenad Jevtic
Rating: 5 out of 5
Extension Builder in New Malden
I've start working in the building industry 15 years ago. Over the years working in the industry I have moved up the lader and for last 4 years worked as project manager for different building company's . I have vast experience in designing and working on projects to highest standards to meet deadlines and within the budget . I have team of highly experienced tradesman and we always go extra mile to meet customers needs.
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Latest review:
Conversions - General- 6 Feb 2019
Nanad and his team have been wonderful from day one. We have had them with us a number of weeks doing all the jobs they quoted for and more, they are fast efficient and courteous of the fact we lived in for a lot of the work. Everything has been finished to a great standard and we are thrilled with our house which has been completely transformed. We have already recommended them to friends and will continue to do so and hopefully have them back in future. They are creative, solve issues that crop up easily and without fanfare extremely hardworking and all round an excellent team! Thank you for everything! Emma and James
Handyman
Rating: 5 out of 5
Extension Builder in New Malden
Welcome to handy paul, your go-to experts for all your home improvement needs in the heart of Mitcham serving the vibrant community of sutton Merton, London. With a wealth of experience under our belts, we specialise in transforming spaces with our comprehensive range of services, including Bathroom Fitter, Kitchen Fitters, Flooring, and Painters & Decorators etc.Our commitment to quality and customer satisfaction is second to none, ensuring that every project we undertake is completed to the highest standards.Choosing handy paul means choosing a partner who values your input and works tirelessly to exceed your expectations. We believe in open communication and collaboration, ensuring that you're involved in every step of the process. Our team is not only skilled but also friendly and approachable, making your renovation journey as smooth and enjoyable as possible.So, if you're in Mitchamor anywhere in <Merton, sutton,London, and you're ready to embark on a home transformation journey, look no further than handy paul. .manny thanks paulo
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Latest review:
Fencing- 27 May 2026
Excellent service from start to finish. Replaced 5 fence panels quickly and professionally, arrived exactly on time and had everything completed by 2pm. Friendly, hardworking and no fuss at all. Also removed and cemented in a fence post after finishing the fence work. Left everything tidy and did a great job, reasonably priced — highly recommend!
Nick the Brick
Rating: 5 out of 5
Extension Builder in New Malden
Hello everybody, my name is Nico and I’m a bricklayer with Diploma and NVQ in bricklaying, I been working as a bricklayer for the last 10 years and after been working for all the main high standard bricklayer company I have decide to start my own company. In those years I always been appreciate for my professionalism and the quality of my work, including my obsession with details,I’m confident to say that I can take any expects of brick/block work. please feel free to contact me anytime.
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Latest review:
Demolition- 26 Aug 2025
Nico did an amazing job on emptying, demolishing and clearing the shed. It was much harder than anticipated but Nico and his team went above and beyond to do the job, leaving everything clean and tidy. Thank you for your hard work. Nico was always polite, courteous and super prompt. I will be using Nico’s services again and can highly recommend him to others.
TMS Solutions
Rating: 5 out of 5
Extension Builder in New Malden
Based in Ewell TMS provides the highest standard of property services throughout London and the surrounding area. I am a time served carpenter. Starting as an apprentice on a small building company, which has led me to experience all aspects of the building trades.
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Latest review:
Handyman- 5 Apr 2019
Work was done to a good standard as agreed.
alpha green construction
Rating: 5 out of 5
Extension Builder in New Malden
I have 25 years experience in the trade.specialise in innovation and reliability. Trade built company generally around masonry , roofing and all other structural undertakings. We specialise in loft conversions and house extensions , masonry and landscape gardening. We also provide design and build schemes for the above topics.
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Latest review:
Extensions- 14 May 2019
We love Berry, he has followed our project from the beginning to the end and he has been there all the steps of the way. He listened to our ideas and enriched them with more of his adding his special attention to details skills. For every problem, we had along the way he talked to us making sure we were happy with alternative solutions. Plus he is able to create a friendly working environment which makes the invasion of your house less intrusive, he has been very respectful of our space. We can genuinely say that he has gone beyond our expectations, and will be very happy to do future works with him. Luca and Nick
edildue
Rating: 5 out of 5
Extension Builder in New Malden
Groundworks, Fromwork, steel fixing, casting , general builders, carpentery , tiles , concrete , wood floor
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Latest review:
Handyman- 6 Nov 2023
Michele and his team did an excellent job of improving the external area of our property. Very professional communication, job was done to a high standard at a fair price. Done in a very timely manner and would highly recommend.
KEVIN CONSTRUCTION SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in New Malden
Kevin Construction is a London-based, well-organised construction company specialising in large-scale developments alongside leading UK firms. We offer a full suite of services—from extensions and conversions to structural alterations and landscaping. With a dedicated team, digital management tools, and a focus on quality, we guide every project from planning to successful completion.
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Latest review:
Fencing- 13 May 2026
Kevin turned up on time and did a solid job on my fence. Would use again
SW Heating & Refurbishments Ltd
Rating: 5 out of 5
Extension Builder in New Malden
SW Heating & Refurbishments is a local refurbishment company specialising in complete property refurbishments, extensions and loft conversions, new heating systems and boilers. We take pride in all of our work and our aim is to provide you with a quality finish, tailored to your budget. With over 19 years experience, we have built up an extensive team of tradesmen allowing us to provide an outstanding service. We are fully insured and all our work is gas safe and NICEIC certified.
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Latest review:
Conversions - General- 20 Mar 2024
Charlie & Richard did a great job. They visited my property to get an accurate quote. They let me visit another property they are developing which gave me confidence that they were more than capable of my job. They carried out the work quickly and to a high professional standard. Wouldn't hesitate to use them again.
Lto construction
Rating: 5 out of 5
Extension Builder in New Malden
We are a family run building company with years of experience. We fully commit ourselves to each and every project and try our hardest to exceed our clients expectations.
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Latest review:
Bricklaying- 23 Oct 2018
Tony and his team were phenomenal! Professional, courteous, reliable, tidy and quick. Tony's communication throughout the build was consistent, clear and precise. Tony really listened to me throughout the process; provided advice and options but most of all completed the project the way I needed it. The whole build went exceptionally smoothly, was finished ahead of schedule and on budget. Tony's workmanship is excellent and the final finish spot on. I was really worried about finding the right builder for my project... I simply could not have found better. I got several quotes from different providers and Tony's represented the best value for money. I highly recommend Lto builders, you will not be disappointed.
XTEND LONDON LTD
Rating: 5 out of 5
Extension Builder in New Malden
Hello, we are XTEND London LTD. We have over a 100 years combined experience as a team in the building industry specialising in extensions, roof conversions, plastering, house refurbishments and decoration, We have got a hardworking and skilful team of qualified trades men including electricians and gas safe plumbers ready to meet your building needs and ideas! We look forward to working with you to build your dream home. Many thanks, XTEND LONDON LTD.
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Latest review:
Extensions- 8 Mar 2026
We had a fantastic experience with Xtend London Ltd and couldn’t be happier with the work carried out. The whole project was handled very professionally from start to finish. The team worked at a great pace without ever compromising on quality, and the price was very fair for the standard of work delivered. Throughout the process they gave us really helpful advice and guidance, which made everything much easier and ensured the best decisions were made along the way. Communication was also excellent – whenever the team wasn’t on site, messages and questions were answered very quickly. A special thank you to Lucas, Dean, Eldi and the rest of the team for all their hard work and dedication. It’s clear they take a lot of pride in what they do. We would absolutely recommend Xtend London Ltd to anyone looking for a reliable and professional building company, and we would definitely use them again in the future.
Vpbuildesign ltd
Rating: 4.5 out of 5
Extension Builder in New Malden
We skilled and experienced team are dedicated to building your vision into reality and we aim to cater for all your building requirements from design work to refurbishments. We have a huge extent of Construction services available dependent upon client needs, therefore, it is always worth giving us a call to see how vpbuildesign Ltd will be able to assist in bringing your property projects to life.
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Latest review:
Plastering- 21 May 2026
Great experience. Quick to respond. Easy to deal with and did a great job. Recommended!
Agnuss Construction Ltd
Rating: 5 out of 5
Extension Builder in New Malden
We are a construction company that operates in the local area mostly, but we can also cover all the other areas of Greater London. Our Services include Extensions, Loft Conversions, Refurbishments, and basically all the aspects of building work. We specialise in residential and business projects.
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Latest review:
Agnuss Construction carried out and completed our house renovation, kitchen extension and loft extension successfully. Elio and his father, Mario were very communicative throughout and very reliable. The works were carried out on time and on budget. I would be happy to recommend Agnuss Construction and use them again in the future.
HJ Contractors Limited
Rating: 4.7 out of 5
Extension Builder in New Malden
HJ is a small friendly local company. We take on all sizes of jobs from as little as hanging curtain poles to as big as extensions. HJ is made up of a team of people with the combined experience of 35+ years in the building trade. Our company goals are to supply high quality work at affordable prices and excellent customer service.
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Latest review:
Handyman- 9 Sep 2018
Finished the job quickly. Will hire again.

4.3

Top rated Extension Builders

Our Extension Builders in New Malden, 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 New Malden?

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 New Malden 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 New Malden who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in New Malden?

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

Find extension builders in New Malden with MyBuilder

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

Step 2: Compare different extension builders in New Malden

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

Step 3: Hire New Malden extension builders with confidence

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

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

What to ask a New Malden extension builder before hiring?

Before hiring an extension builder in New Malden or extension building company in New Malden, 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 New Malden?

An extension builder in New Malden 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 New Malden 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 New Malden?

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 New Malden 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 New Malden 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 New Malden

Can an extension builder in New Malden help with planning permission?

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

Many New Malden 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 New Malden help with materials and finishes?

Yes, most extension builders in New Malden 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.