Extension Builders in New Malden

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (22 reviews)

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Some of our top rated extension builders in New Malden

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ANDRII TKACH
No reviews yet
Extension Builder in New Malden
Andrii Tkach All types of work
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Foundations up
Rating: 5 out of 5
Extension Builder in New Malden
I have been involved in the construction, civil engineering for 20 plus years. I have a great knowledge of every aspect from the ground up. I have a portfolio of past projects on request. I relish on problem solving projects, because there is always a solution there is no job that can’t be done, with my clients budget coming first so both parties are completely happy and satisfied with the time and resources available.
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Latest review:
Groundwork & Foundations- 6 Feb 2026
Quick communication, completed work as agreed at a competitive price. Recommended.
RQ Brickwork
Rating: 5 out of 5
Extension Builder in New Malden
bricklayer, undertake new builds, extensions ,garden walls stone work and repointing
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Latest review:
Bricklaying- 21 Jul 2025
Really nice guy to deal with. Job was done on time, looks good. I will definitely work with him again and would recommend.
Right Triangle Build Ltd
No reviews yet
Extension Builder in New Malden
New build • Full House Refurbishment • Extensions & Loft conversions
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Mo
Rating: 5 out of 5
Extension Builder in New Malden
Hi, I’m Mo – a skilled and trusted builder with a team of nearly 20 experienced tradesmen. We deliver high-quality results, fast and efficiently, no matter the size of the job. We specialise in everything from small repairs to full-scale builds, including: • Full house builds from the ground up • House extensions and structural alterations • Loft conversions & dormers • Bathroom & kitchen fitting • Plumbing & roofing • Bricklaying & repointing • Carpentry & joinery • Flooring (carpets, lino, laminate, etc.) • Painting & decorating • Plastering & rendering • Tiling • Windows & doors installation • Paving & landscaping • Damp proofing and more With years of experience and a reliable, multi-skilled team, we take pride in completing work to the highest standard — on time and within budget. We’re ready to take on your project and exceed expectations. Get in touch today for a free quote or site visit.
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Latest review:
Painting & Decorating- 3 Jul 2025
Mo and his team did a good job and when we needed to fix the detail, he was happy to oblige. Will definitely be looking to hire him again
CREATORS 4U LTD
No reviews yet
Extension Builder in New Malden
High standard quality and reasonable price. New buildings Extensions Loft conversions Garden offices and sheds Pavings Outdoor and indoor refurbishment Bathrooms and utility rooms Flooring Doors installation Fence building Plumbing Electricity Drainage + Kitchen installation Furniture assembling Bespoke carpentry FREE QUOTATION
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Nice Design & Build
Rating: 5 out of 5
Extension Builder in New Malden
Quality general builder
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Latest review:
Decking- 16 Apr 2022
Adam is firstly a really lovely guy and we felt comfortable with him from the moment he came and did a very thorough assessment of the job. His work was very neat and clean. The job was done perfectly and we will definitely be using his services for other work on the flat.
First Division Builders Ltd
Rating: 5 out of 5
Extension Builder in New Malden
For the past 10 years i worked as a foreman for a large company, contracted to the Portman Estate in London, I have been responsible for leading a team of 20 ,whilst being committed to completing to a high standard, and running to time. I've mainly specialised in refurbishment and restoration work, but have a broad spectrum of knowledge and skills also. I believe in giving a fair quote and delivering a quality service.
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Latest review:
Conversions - General- 17 Jul 2017
Great comms and reliable. Good timing and happy to work with me to come up with solutions to snags I had caused. Would and have used Saimir again. Highly recommended.
MM
Rating: 5 out of 5
Extension Builder in New Malden
We are a highly experienced kitchen and bathroom design and installation company with over 20 years of proven expertise in delivering exceptional results. We provide a comprehensive, end-to-end service—from detailed consultation and bespoke design through to precise, high-quality installation—or a dedicated installation service tailored to your specific needs. Our work is defined by technical accuracy, refined craftsmanship, and a deep understanding of both aesthetics and functionality. We deliver bespoke kitchen and bathroom solutions across a full spectrum, from well-specified standard projects to luxury, high-end installations, all executed with exacting standards and attention to detail. Operating throughout London and the surrounding areas, we are committed to delivering a consistently high level of service, underpinned by expert guidance and industry knowledge. Every project is approached with a structured, client-focused process, ensuring clear communication, efficient delivery, and outstanding results. Regardless of the size or complexity of the project, we work in close partnership with our clients to accurately interpret their vision and requirements—translating them into expertly crafted spaces that meet the highest professional standards.
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Latest review:
We initially hired Michael to convert a bathroom into an office. After meeting him and discussing our longer-term plans, we quickly felt confident moving forward with him on much wider renovation works across the property. Michael worked closely with us throughout the entire process—from early ideas and structural planning through to execution. He consistently provided insightful, practical advice that added real value. His ability to anticipate issues early not only prevented problems but also helped us save money by refining the plans to maximise our goals and avoid unnecessary costs. Michael’s broad knowledge and skill set were hugely beneficial on a project of this size and within a tight budget. He made the process far less stressful and, at times, genuinely enjoyable. He kept me informed and involved at every stage, which gave me a great deal of confidence in both the quality of the work and the decisions being made throughout. Michael helped us renovate every corner of our four-bedroom maisonette in West London—from bathrooms and structural opening-up works to a full kitchen renovation, hard landscaping, flooring, and carpentry. The list goes on. His wide skill set and depth of knowledge were truly impressive and exactly what we needed, particularly as we chose to stay closely involved in the renovation rather than hiring a larger construction and project management company. We genuinely don’t feel we could have made a better choice. It’s not always easy to find a builder who is reliable, honest, and trustworthy, so I feel very fortunate to have worked with Michael. I would recommend him without hesitation and will absolutely continue to work with him on future projects, big or small.
LZS Building Service LTD
No reviews yet
Extension Builder in New Malden
Hello, my name is Leszek, I have been a construction worker for 25 years. I registered my company 13 years ago, I have never been bankrupt. To make a project, I need good architectural plans and steel calculations from an engineer. We do construction work, renovation works, we make extension, we make Lofts , landscaping. If you want recommendations from my previous clients, no problem. I can give you the phone number. If you decide, I invite you to cooperate
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Meadway
Rating: 5 out of 5
Extension Builder in New Malden
Meadway offers a friendly, efficient and affordable service Examples of our work include: All aspects of Carpentry work, including kitchens, flooring, doors, decking, fencing, landscaping, skirting and architraves, building furniture, fitting cupboards, wardrobes and much more.. - Maintenance services - Plumbing - Roofing - Plastering - Tiling - Brick/Blockwork Please don't hesitate to call, we will be happy to answer any of your questions.
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Latest review:
Carpentry- 25 Jun 2022
Meadway was brilliant did the job quick and sufficiently. Will be using Meadway going forward.
LJ construction
Rating: 5 out of 5
Extension Builder in New Malden
I run a small building firm, I'm a bricklayer by trade but do most things in the building trade I've been in the building game for 24years now so I'm very experienced at all types of building work
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Latest review:
Extensions- 30 Aug 2024
Great work by Luke and all his team. The work is to a really high standard and aesthetically pleasing. Luke's attention to detail is second to none. His brickwork is amazing. He listens to any questions or concerns and makes sure that he answers and resolves them. The finished product is way beyond what we had expected. The site was managed well and all members of the team were respectful and they worked well together. I would certainly recommend Luke for any building work you need doing as he makes sure that the job is done well and stress-free.
3D Design And Build LTD
No reviews yet
Extension Builder in New Malden
We specialise on extensions / loft conversion/ full property conversion and refurbishment / kitchens & bathrooms Plumbing and electrical Flooring and tiling Patios and drives and much more give us a call for free quote with no obligation All our reviews are on Google
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Ioan Hrit
Rating: 5 out of 5
Extension Builder in New Malden
With over 13 years experience I'm confident in all aspects of groundworks including new build and extensions from footings up to damp course, drainage and the slab construction, kerb laying, block paving; drives paths, slab laying, septic tank installation and soakaways.
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Latest review:
Groundwork & Foundations- 31 Oct 2025
Fantastic all round service. Ioan is very hard working, very knowledgeable in his field and is very well organised and experienced with the logistics and execution of all types of groundworks. I would highly recommend.
Garry builders
Rating: 3 out of 5
Extension Builder in New Malden
Hi I am garry I have 9 years experience in building work and I done lot of projects by myself in reasonable cost you can check profile pictures and contact us for quotes
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Latest review:
Painting & Decorating- 13 Jul 2023
Garry done nice work .
Gas plumbing service construction
Rating: 5 out of 5
Extension Builder in New Malden
We are offering more range and types of building works such as New builds ,extension, loft conversions, gas and plumbing work ,electrical, full refurbishment . All the work comes with warranty ,comply building regs ,gas and electrical work certified by registered gas safe and electrical engineering .Our Clean ,reliable and friendly team are more than happy to help you out with any kind of project you have regardless small or big
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Latest review:
Plumbing- 20 Nov 2023
Petru was really quick and helpful and resolved my issue, no complains at all!

4.2

Top rated Extension Builders

Our Extension Builders in New Malden, are rated 4.2 out of 5 based on 22 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.