Extension Builders in Merton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (24 reviews)

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Some of our top rated extension builders in Merton

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Harro Construction
No reviews yet
Extension Builder in Merton
Been doing building work for 18 years plus I sub contract to Duaris limited in east grinstead We - harro construction do there groundwork brickwork patios extensions drives all building work and I'm fully insured - 2million public liability . If you would like a quote for any work please call or email me thanks dave - harro construction
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DJS Construction Ltd
No reviews yet
Extension Builder in Merton
I specialise in the house refurbishment and house extension. 25 years experience in the home improvement industry.The list below is intended to give a indication of the type of work I do:house refurbishment,loft conversion,house extension,bathroom,wet room,kitchen,custom made furniture
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Virtu Projects Limited
No reviews yet
Extension Builder in Merton
Virtu Projects are a family run business with years of experience in residential, commercial, and industrial construction, we deliver reliable, on-time, and on-budget solutions tailored to your needs. From the ground up, we build with integrity, innovation, and a focus on lasting results.
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CIVIBUILD LTD
No reviews yet
Extension Builder in Merton
One stop service of design, planning and implementation of your home renovation project.
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Quality Build Ltd
No reviews yet
Extension Builder in Merton
I am a professional builder with 20 years experience, I specialise in loft conversions and extensions. I have a full team providing customers with a high quality finish every time. I have plenty of references and photos of previous projects if required.
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G.B Building & Plastering
Rating: 5 out of 5
Extension Builder in Merton
We are a team of fully qualified and fully insured bricklayers/plasterers/general builders specialising mainly in extension building and coloured render systems. We undertake all plastering & brickwork jobs whether big or small. We are certified installers of EPDM rubber/GRP fibreglass roofing systems. We pride ourselves in the quality of our work, time-keeping and our tidiness. A Portfolio of our work can be made available to you upon request. IT IS OUR GOAL TO HELP YOU ACHIEVE YOURS
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Latest review:
Extensions- 20 Jun 2019
Gary rendered the back of our house and plastered our hallway, stairway and upstairs landing. He did an awesome job, he had great attention to detail, very skilled and tidy too. He is a hard worker and would recommend him to anyone. Hopefully Gary can come back in 2020 to render the front of our house.
Ambrose Building Solutions ltd
New on MyBuilder
Extension Builder in Merton
At Ambrose Building Solutions we are committed to delivering high-quality construction and building services with a focus on craftsmanship, reliability, and customer satisfaction. With years of industry experience, we specialise in residential, and renovation projects, providing tailored solutions that meet the unique needs of every client.
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BCS Construction Services Ltd
No reviews yet
Extension Builder in Merton
With over 15 years in the construction industry covering most trades BCS Construction is able to provide a reliable and trustworthy service
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R White Home Improvements
No reviews yet
Extension Builder in Merton
Based in Chafford Hundred, Essex we are a small company employing a friendly team that specialise in extensions, kitchens and bathrooms. We also undertake most home improvement projects. We've been a member of my builder since 2016 but have worked from customer recommendations alone to date.
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M&J
No reviews yet
Extension Builder in Merton
I am 29 years old. I really like working in construction. I have been working for 5 years in a company and now I want to do something for myself because I believe that I have all the necessary qualities and I want to start something for myself.
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Wooburn Project Management Ltd
Rating: 5 out of 5
Extension Builder in Merton
Our company is family owned and we work on all property types from small extensions to building new homes and refurbishments containing multiple units, we employ most of our people directly and have built a family atmosphere giving us more control on the program and our main subcontractors have worked with us for many years .
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Latest review:
Extensions- 1 Sep 2021
I have nothing but praise for Michael and his team. The project was managed exceptionally well and Michael kept us apprised of progress, emerging issues (which were dealt with quickly and with some innovative thinking) and he was honest and candid with our choice of kitchen tile (I think his words were do you want to rethink that colour!). Michael quoted in Nov and started work in the Spring (late Mar) and held his price despite a national increase in the price of materials and reduced availability which he managed admirably. Obviously a man with a good eye; his suggestions for additional works were inspired and they have resulted in a high quality finish. Finally, it is worth mentioning the team who did the grafting! Very industrious, skilled, polite and helpful. Highly recommend Wooburn PM to anyone considering building work. :-)
OWV Developments LTD
No reviews yet
Extension Builder in Merton
OWV Developments Ltd is a trusted, NHBC-registered building and development company based in Camberley, Surrey. Established with a strong foundation in practical construction expertise, we specialise in delivering high-quality residential projects from concept to completion. With over 15 years of hands-on experience in the industry, our team has successfully completed a wide range of building works, including new builds, extensions, renovations, repairs, and civil engineering projects. We combine the agility of a local builder with the resources and standards of a professional development company.
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AGbuilds
No reviews yet
Extension Builder in Merton
We provide high-quality, durable, and stylish solutions for homes and businesses. Our expertise covers modern windows and doors, security installations, and outdoor structures, ensuring safety, efficiency, and elegance in every project. We prioritise expert craftsmanship, top-grade materials, and customer satisfaction, helping you enhance your property with reliable and aesthetically pleasing solutions
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T bush carpentry
Rating: 5 out of 5
Extension Builder in Merton
I am Carpenter who know runs a building company with my buisness partner liam, we are both from a carpentry background with extensive knowledge within the building industry, covering all aspects of building, including renovation, new builds, extensions etc We have a tight network of electricians and plumbers we bring together to create a streamlined process from the first visit of site, to the turn key of your finished property or work space. We have carried out projects all over the country and pride ourselves in a true passion for our industry, our team will work tirelessly around clock to meet the expectation and needs of all our clients, please check us out on instagram 'Bushandgrimesconstruction' and our website 'bushandgrimes' for all ongoing and completed projects
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Latest review:
Carpentry- 24 Feb 2020
The repairs to the conservatory proved to more involved and time consuming than originally thought. Tom has been excellent in finding solutions and has shown persistence and skill. He has been a pleasure to work with and I highly recommend him.
DW Brickwork
Rating: 5 out of 5
Extension Builder in Merton
Hi, I’ve been a Bricklayer for 20 years. All brick and blockwork undertaken from garden walls extensions new builds etc. All work is high quality and neat. I also have building insurance covering up to 1 million pounds of damage. Company Name: Simply business. Policy number: ASB14059198XB2
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Latest review:
Bricklaying- 26 Nov 2025
perfect highly recommend
ERW Building Services
Rating: 5 out of 5
Extension Builder in Merton
General builder covering all aspects of exterior and interior works. This includes groundworks from footings, drainage, paving, to conversions and interior maintenance and decoration. With over 20 years of proven experience using quality materials and tradesmen. My aim is to work with my customers to provide a service that fits to their plan and budgets giving sound advice on what would work best to give a lasting finish.
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Latest review:
Conversions - General- 17 Mar 2019
Elliott has to be the best decorator/ builder I have used. On time with works and no lies or excuses!!! After posting my job he call me within 30 minutes to arrange a visit. This was the following day. When Elliott arrived he understood my requirements and saw my ideas and advised when he thought from his experience, would work better. He was very polite and professional. I needed the work done within 2 weeks due to carpet being laid. He completed the works within 7 working days. The works involved, Removing a wall, Removing all woodwork, Boxing out pipes, Plastering, New coving, New skirting, New architrave 2 doors, Building an under stair shelving unit, Moving a socket, sky cables, internet box, Removing radiator, Painting of all new plastered walls ceiling and woodwork to my chosen colours. I was even able to get him to squeeze in some additional works. This was creating shelves in my airing cupboard upstairs and boxing out pipes in my hallway. Elliott’s communication throughout the works was great. Even if he was unable to get round my house he would let me know at his earliest opportunity. Very very tidy during works. I have a 3 year old and Elliott made sure it was left safe every night. The finished works are to a high standard and he even popped back to do a bit off snagging on a Saturday morning. When I say snagging it was a few paint marks, re-laying my old carpet and dropping my keys off. I will be using Elliott in the future.

4.3

Top rated Extension Builders

Our Extension Builders in Merton, are rated 4.3 out of 5 based on 24 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Merton?

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

Find extension builders in Merton with MyBuilder

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

Step 2: Compare different extension builders in Merton

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

Step 3: Hire Merton extension builders with confidence

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

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

What to ask a Merton extension builder before hiring?

Before hiring an extension builder in Merton or extension building company in Merton, 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 Merton?

An extension builder in Merton 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 Merton 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 Merton?

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 Merton 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 Merton 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 Merton

Can an extension builder in Merton help with planning permission?

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

Many Merton 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 Merton help with materials and finishes?

Yes, most extension builders in Merton 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.