Extension Builders in Merton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (21 reviews)

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Some of our top rated extension builders in Merton

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SM Tech Ltd
No reviews yet
Extension Builder in Merton
Home Improvement Experts | At SM Tech LTD, we specialise in transforming homes with expert renovation services that enhance both beauty and functionality. Our skilled team is committed to delivering high-quality, cost-effective solutions tailored to your needs. Whether it’s a kitchen makeover, a full home remodel, or small home improvements, we bring your vision to life with precision and care. Trust us to make your home renovation experience smooth, reliable, and rewarding. Let’s create the space you’ve always dreamed of!
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Qimi
No reviews yet
Extension Builder in Merton
My name is Bri decided to open my self up a construction company Qimi Building I have a passion for seeing homes come to life I have 2 very dedicated individuals who have a passion for building we offer all kinds of services please just ask me and I will give you the information any questions you would like to know regarding a job your wanting done and prices ect.
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KSG Comfort Ltd
No reviews yet
Extension Builder in Merton
Your reliable partner in creating safe and comfortable facilities! We create environments where comfort and safety are the basis for your success, guaranteeing reliability and quality at every step. ksgcomfortltd
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MGB SOLUTIONS LTD
Rating: 4.4 out of 5
Extension Builder in Merton
Professional Kitchen Fitter with 20 years experience.
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Latest review:
Kitchen Fitting- 18 Nov 2025
Original timeline stretched a bit due to his other jobs but this was fine. Mario started work early and finished early which suited us. He came to visit and we agreed a price at the start and he stuck to it even when he realised some additional plumbing would be needed. He was honest about some accidental damage. Attention to detail is good and he has all the kit. I would have given 5 stars- he's a proper professional and I enjoyed working with him. 3 stars only because as soon as the work was done he became incommunicado (I messaged a week later to ask how to lift door which had dropped down a few mm on fridge). The warranty advertised is one of the reasons I went with MGB which was £200 more expensive than contenders so this was disappointing. I would have asked him to do my parents' new kitchen too otherwise.
NV Constructions LTD
No reviews yet
Extension Builder in Merton
New build house , extensions ,renovation, loft convention all Bulding work undertaken
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ALbuild
New on MyBuilder
Extension Builder in Merton
SHUTTERING CARPENTER | FORMWORK | CONCRETE | GENERAL BUILDING With over 20 years of experience in construction, I specialise in shuttering carpentry, formwork and concrete work, with experience across a wide range of building projects. 🔨 Shuttering carpentry & formwork 🏗️ Concrete work 🏠 Roofing 🧱 General building & construction work 🔧 Repairs, alterations and other building jobs I’m experienced, reliable and take pride in delivering quality workmanship and a professional finish. 📍 Based in East London 📍 Available for work across East London and surrounding areas For enquiries or to discuss your project, please send me a message with the details
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As2 construction Ltd
No reviews yet
Extension Builder in Merton
AS2 Construction Ltd , where craftsmanship meets innovation. As a leading construction company, we specialize in delivering high-quality projects tailored to meet your vision. Our dedicated team of experts ensures excellence in every detail, making us your trusted partner in construction solutions. Explore a seamless blend of expertise, reliability, and creativity with AS2.
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Bpm Contractors Ltd
No reviews yet
Extension Builder in Merton
BPM contractors are a reputable company, known for our cost-effective prices. Our company offers both competitive pricing and flexibility to the needs of our customers. Some of our services include:General Maintenance,Refurbishment,PlumbingElectrical,Painting,Decorating,Carpentry,Flooring,Windows.
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Swiftbuid Solutions Ltd
No reviews yet
Extension Builder in Merton
An experienced and dedicated builder with over 10 years of hands-on experience in residential, commercial, and industrial construction projects. Proficient in a wide range of building techniques, including loft conversion, house extension, house renovation etc, with a focus on quality, safety, and client satisfaction
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Ecdl group ltd
No reviews yet
Extension Builder in Merton
From new builds to full renovations thats what we do. We design, we build we maintain.
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Nc property services
New on MyBuilder
Extension Builder in Merton
Fully qualified electrician and multi-trade specialist with over 13 years of hands-on experience delivering single-storey extension builds, complete kitchen and bathroom refurbishments, and commercial refits. Based in Loughton, I serve clients across London and the Home Counties. Experience Over 13 years of trade experience spanning domestic extension builds, structural wall modifications, full kitchen and bathroom transformations, and co-founding a 39-strong engineering firm. Services & Expertise Extensions & Structural Builds: Single-storey extension framing, structural wall openings, carpentry, and flat roof repairs/installations. Kitchen & Bathroom Refurbishments: End-to-end fit-outs, floor laying, plumbing, electrical integrations, and space layout modifications. Electrical Compliance: CSCS card holder with Inspection & Testing certification for rewires, fault finding, testing, and consumer units. Maintenance & Repair: Planned preventive maintenance, disrepair remediations, and general trade upgrades. Areas Covered Loughton (IG10), Greater London, Essex, and surrounding Home Counties. Why Choose Me I offer direct, approachable communication and strict attention to detail on every project. From structural extensi
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Bjorn brickwork and groundwork’s LTD
No reviews yet
Extension Builder in Merton
We are a family run construction business based in Dormansland, Surrey specialising in brickwork extensions and new builds . We have been operating in surrounding areas for a number of years and have 40 plus years of experience in the trade We provide services to customers and to builders in the local area where we have built our reputation for our services . We are a reliable, hardworking and friendly team.
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Adeleon
No reviews yet
Extension Builder in Merton
Design services including architectural design, interior design and landscaping: - Work Drawings. - 3D Rendering. - Building materials calculation.
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ECOFRAME DIRECT LTD
No reviews yet
Extension Builder in Merton
EcoFrame Direct specialises in the supply and installation of high-quality windows and doors, including uPVC and aluminium windows, composite doors, sliding doors, and modern glazing solutions such as rooflights and roof lanterns for residential properties. We work across London, Surrey, Kent, East Sussex and West Sussex, delivering carefully planned installations with a strong focus on quality, compliance, and customer experience. Every project is approached properly — from accurate measuring and specification through to professional installation and aftercare. Our team has extensive hands-on experience within the glazing and construction industry, and all installations are carried out in line with current Building Regulations. We work with trusted manufacturers and proven systems to ensure excellent thermal performance, security, and long-term reliability. We’re happy to advise on design, layout, glazing options, and energy efficiency, taking the time to explain everything clearly before work begins. Finance options are available where required, and all work is backed by product and workmanship guarantees for complete peace of mind. Free quotations, clear pricing, and reliable communication from first enquiry to completion.
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Arcus Construction Ltd
No reviews yet
Extension Builder in Merton
Arcus Construction was formed with the view to deliver the highest quality standards alongside exceptional customer service, making the construction process simple, seamless, well managed and entirely positive for our clients. As refurbishment & construction specialists, our multi-skilled team covers all trades, enabling us to provide a complete in-house, end-to-end service, which is managed & completed to our own impeccably high standards
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Adamantium roofing & brickwork contractors
No reviews yet
Extension Builder in Merton
First impressions matter, so here’s a little about me and what I bring to the table 👇 With over 10 years of hands-on experience in the building industry, I take real pride in delivering quality work that stands the test of time. Whether it’s a small repair or a full project, I approach every job with the same level of care, attention, and professionalism. For me, it’s not just about getting the job done — it’s about doing it right. I believe in being reliable, honest, and easy to work with. Clear communication, respect for your home, and keeping things clean and organised are just as important as the build itself. Customer satisfaction always comes first. I listen, I care, and I make sure you’re happy every step of the way. If you’re looking for someone trustworthy, skilled, and committed to high standards, feel free to get in touch — I’m always happy to discuss your project and help where I can. 🔨 Quality work🤝 Honest service🏡 Respect for your home Let’s build something great.
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4.2

Top rated Extension Builders

Our Extension Builders in Merton, are rated 4.2 out of 5 based on 21 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.