Extension Builders in Clapham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Clapham

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Euro Elite Projects Ltd
No reviews yet
Extension Builder in Clapham
We are Euro Elite Projects, a London-based construction company established in 2024, we stand out for our experience, expertise, and commitment to excellence. Our seasoned team of contractors, with over 20 years in the industry, brings unparalleled skill to every project. From quality craftsmanship to great customer reviews, we prioritize attention to detail and fresh perspectives. Trust us as your partner in building dreams.Choose us for top-tier construction services that turn your vision into reality! Always here for you! Euro Elite Projects
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Atika
No reviews yet
Extension Builder in Clapham
As the Director of our Family business Atika Construction, I have been in the Building industry for over 8 years and was trained by a contractor who had over 25 years experience. I also have past experience in the carpentry trade. Myself and my partner have undertaken all different types of building and landscaping work.
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Lalji vekaria
No reviews yet
Extension Builder in Clapham
Hi I'm a experienced carpenter with 25 years experience
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Phoenix Logis Limited
Rating: 1 out of 5
Extension Builder in Clapham
We have many years experience in the UK market in refurbishment and domestic and non domestic property alterations. This includes heavy structural alterations and house extensions and reconfigurations for very high end clients delivering in the range of Prime and Super Prime Projects for very high end clients. This getting the projects from cradle to grave making sure we meet our targets on time and budget making sure the clients are happy with the results we deliver. Our works starts with the assistance of making all the necessary paperwork for the client, ground works, internal refurb, heavy and light structural alterations, in a few words all trades in our hand for internal and full external works this including scaffolding.
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Latest review:
Restoration & Refurbishment- 1 Feb 2026
The WORST experience I have ever had with a tradesman. I would strongly advise others to stay clear. There was no schedule of works at any stage. Adrian failed to plan, failed to communicate agreed works, & did not even tell his own workforce what they were meant to be doing. There was no evidence of professional oversight or management, resulting in chaos & extreme delays. I was repeatedly misled. He stated that Building Control had been contacted & paid for; but when I contacted them directly they confirmed no application or payment had been made. He damaged my property & instructions were ignored. He was rude, aggressive & shouted at me in my own home, which I found intimidating as a woman. Neighbours also complained about his behaviour. Despite multiple extensions, the job was left unfinished with little communication. He caused significant stress & a serious loss of time & money. The matter is now being resolved through the courts. I would NOT recommend him under any circumstances
Mat's Group Limited
No reviews yet
Extension Builder in Clapham
Mat’s Group Ltd is an experienced construction and refurbishment contractor delivering high-quality residential and light commercial projects across London and the South East. We specialise in extensions, loft conversions, structural alterations, full refurbishments, and new build developments. Our team combines practical site expertise with strong project management, ensuring works are delivered safely, on time, and within budget. We regularly undertake structural works including foundation construction, steel installations (RSJs), underpinning, roofing, and complete internal fit-outs. As a Principal Contractor, we operate in full compliance with CDM 2015, maintaining high standards of health and safety, workmanship, and communication throughout every project. We pride ourselves on reliability, transparent pricing, and attention to detail. From small residential improvements to larger developments, we work closely with clients to achieve quality results with minimal disruption. Mat’s Group Ltd – Building with confidence.
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G n r design and build ltd
No reviews yet
Extension Builder in Clapham
we have 14 years experience, All building work undertaken, loft conversion, extension, plaster,plumbing,electrical,painting,decorating,carpentery, joinery, flooring, tiling,roofing, brickwork, ground work
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Ledi Gjata
No reviews yet
Extension Builder in Clapham
Experienced In: Full Extensions Loft Conversation All internal alterations and installations Work with landlords and privately owned properties.
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Price and Perkins Ltd
No reviews yet
Extension Builder in Clapham
Principal Building Contractor. New Build, Refurbishment and Fast-Track Fitting-out. Contract values £100K to £3Million. Fully insured, Employer’s, Contractor’s All Risks, Professional Indemnity and Public Liability to £10Million. Bonafide formal quotations and tender submissions within 5 working days. Highly skilled workforce and professionally qualified management team.
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Gowlain Building Group Contractors Ltd
No reviews yet
Extension Builder in Clapham
CONTROL THE COST AND QUALITY OF YOUR PROJECT. At GBGroup we provide a detailed specification for your project, this means your contractors all provide a quotation for the same schedule of works. Your specification will give you control over payments, quality of the works, completion.
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L holah
No reviews yet
Extension Builder in Clapham
All building work 35 years experience No job too small
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Sureform Construction Ltd
No reviews yet
Extension Builder in Clapham
Hi, My name is Tom Mc Hugh, I have been in the construction industry for over 30 years. I originally started in the field of Architecture but later moved into the construction side of things forming Sureform Construction Ltd (SCL) in 2009. We have great experience in ground works and Temporary works and we have completed several new basements and total renovations within London including some high end projects in, Kensington, Chelsea, Notting hill areas. We are experts with anything relating to concrete, underpinning, Superstructures, foundations, RC slabs etc. We also carry out general groundworks, drainage, remedials and full hard landscaping including tarmac, paving etc. We work on commercial & domestic projects. We generally work within the London area but we have carried out Projects further afield such as Oxford, Cambridge, Bishop Stortford, Stevenage. At Sureform Construction we pride ourselves on professionalism and commitment to Safety and quality Workmanship and attention to detail. We have several Customers and Main contractors that we have worked with on a continual basis over the years. We look forward to hearing from you and seeing how we can help with your project.
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4 brothers brickwork
No reviews yet
Extension Builder in Clapham
We are a professional bricklaying company determined to offering our clients the utmost quality at competitive rates. Our projects include both new construction and repairs/restorations. From a wall to a new build project. No job is too small.
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MR BUILDING
No reviews yet
Extension Builder in Clapham
Hi we are professional builders experience more than 10 years we do all building work such as bathroom and kitchen renovation tiling flooring and loft,extensions.
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SGW CARPENTRY AND CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Clapham
SGW carpentry and construction provide a great professional service to all customers. Providing all first fix and second fix carpentry as well covering all forms of construction services. A business looking to grow and focused on providing a good standard of work and service to all our customers.
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HEATHROW build and design ltd.
No reviews yet
Extension Builder in Clapham
Looking to add space, comfort, and value to your home? I’m a professional builder specializing in home extensions—from extra bedrooms and kitchens to modern living spaces. I deliver custom designs, top-quality materials, and hassle-free construction. Every project is handled with care, attention to detail, and on-time completion. Let’s make your dream home a reality! Contact me today for a free consultation.”
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G&B Welding
No reviews yet
Extension Builder in Clapham
Welder Fabrication steel work for extension house,building garage workshop…!
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4.1

Top rated Extension Builders

Our Extension Builders in Clapham, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Clapham?

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

Find extension builders in Clapham with MyBuilder

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

Step 2: Compare different extension builders in Clapham

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

Step 3: Hire Clapham extension builders with confidence

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

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

What to ask a Clapham extension builder before hiring?

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

An extension builder in Clapham 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 Clapham 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 Clapham?

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 Clapham 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 Clapham 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 Clapham

Can an extension builder in Clapham help with planning permission?

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

Many Clapham 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 Clapham help with materials and finishes?

Yes, most extension builders in Clapham 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.