Extension builders in Carshalton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (19 reviews)

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Some of our top rated extension builders in Carshalton

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M&C Company
Rating: 5 out of 5
Extension Builder in Carshalton
I am a very hard and an experienced handyman.I and my team have done a lot of renovation work all-over London. My main trade is Painter&Decorator.No job is little or to hard.Most of the projects are done in time and on the budget.
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Latest review:
Painting & Decorating- 5 Sep 2021
Muhamet was very professional and delivered the job on time and in high quality. I would definitely recommend him.
Rojline ltd
No reviews yet
Extension Builder in Carshalton
Rojline Ltd excels in home renovations, handling projects from kitchen and bathroom upgrades to complete property makeovers. We meticulously manage each stage, ensuring a seamless experience and a superior finish that enhances your home. Our expert team is committed to realising your aspirations with dependability and skill.
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Marco ltd
Rating: 4.6 out of 5
Extension Builder in Carshalton
we put effort and commitment into our work so that the client is satisfied with our work
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Latest review:
Hard Flooring- 1 Sep 2026
I WANTED TO LEAVE A MINUS REVIEW BUT THERE IS NONE, THAT IS WHY I HAVE LEFT THE LEAST POSSIBLE SCORE. I PERSONALLY DO NOT THINK THIS GUY CALLED MARCO KNOWS ANYTHING ABOUT BUILDING AT ALL. HE IS A ROGUE BUILDER. HE SAID HE HAS 25 YEARS BUILDING EXPERIENCE, WHICH IS A LIE. I CALLED HIM TO DO MY FLOORING, KITCHEN CABINET, TOILET. PAINTING, FIXING LEAKS. HE RUINED THE WHOLE HOUSE. 8 MONTHS ON, WE ARE STILL REDOING ALL THE WORKS HE DID, HE JUST SPLASHED SILICONE ON THE UPVC TO FIX A LEAK. THE LEAK CAME THROUGH THE CEILING UNTO THE FLOOR CAUSING A BIG FLOOD IN THE HOUSE. HE IS THE MOST UNTIDY BUILDER. HE SAID HE WAS PAINTING, HE SPLASHED PAINT ALL OVER THE HOUSE, HE KEPT SAYING HE WILL TIDY IT UP AT THE END. UP TILL NOW, 8 MONTHS AFTER, I AM CLEARING THE MESS. ALL THE GROUT HE PUT ON THE TILES CAME OFF THE FIRST TIME I MOPPED THE KITCHEN FLOOR. ALL THE TILES HAVE MARKED PAIINT ON THEM AND IT IS EXTREMELY DIFFICULT TO REMOVE THEM BECAUSE THERE IS A LOT OF THEM.
jawad
Rating: 5 out of 5
Extension Builder in Carshalton
Skilled and dependable worker with experience in wood construction and roof installation. I build and install wooden posts, frames, and plastic or timber roofing. I take pride in delivering strong, clean, and professional results. Friendly, punctual, and committed to customer satisfaction.
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Latest review:
Jawad was very professional and hard working. Our corner has said if he could give 6 stars he would! I reccomend him highly!
Marcus’s maintenance
No reviews yet
Extension Builder in Carshalton
A local handyman in the Croydon area who does basic plumbing repairs electrical socket pendant repairs painting and decorating lock changes
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MM Projects Ltd.
No reviews yet
Extension Builder in Carshalton
Lofts, conversions or renovations. Whichever service you choose from MM Projects, please be assured that we are fully trained to respect the environment we work within. All Commercial and Domestic Work is undertaken – No job is too big or small. We offer Free Quotes and advice to all our customers. We offer Call Outs to all our customers. Emergency work is undertaken, making sure help is at hand just when you need it. All work is fully guaranteed.
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J&S Wallington
No reviews yet
Extension Builder in Carshalton
Our company specializes in the construction of lofts and extension, We also make bathrooms and kitchens.
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GH Build Specialists
No reviews yet
Extension Builder in Carshalton
NvQ level 6 construction manager with 20 years construction experience.
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M&M Building
Rating: 4.5 out of 5
Extension Builder in Carshalton
Bathroom and Kitchen renovation, floor and wall tilling, wooden floor, kitchen and bathroom plumbing, painting, wood renovation
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Latest review:
Bathroom Fitting- 19 Jan 2021
Efficient, good service. Work not carried out due to job being bigger than expected but good advice given. Will reschedule.
Knight Building Services
Rating: 5 out of 5
Extension Builder in Carshalton
I'm a builder who has spent many years in training to get my experience along with on site work. I cover all areas of the construction industry with a competitive price for a competitive market. I am hardworking and I aim to please. Customer satisfaction is number 1 priority.
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Latest review:
Joinery & Cabinet Making- 30 Jan 2025
Mark is a top guy. Listened to what we were after, came up with solutions, was punctual, clear in his communications and delivered exactly what we wanted. Excellent quality work, clean and tidy. Using again without hesitation.
Cambridge group
No reviews yet
Extension Builder in Carshalton
We are a trusted construction team with over 10 years of professional experience delivering high-quality building services across residential and commercial projects. Our goal is simple: to provide reliable workmanship, clear communication, and results that exceed expectations. Over the past decade, we have successfully completed a wide range of projects, including: • Home extensions & loft conversions • Full property refurbishments & renovations • Kitchen and bathroom installations • Carpentry and joinery work • Plastering, painting, decorating & tiling • Roofing, brickwork & structural modifications • Driveways, patios & landscaping • General maintenance and repairs Our portfolio includes dozens of completed projects, each finished with attention to detail, high-quality materials, and a commitment to customer satisfaction. We take pride in our craftsmanship and treat every job—big or small—with care and professionalism. Why choose us? • 10+ years of hands-on industry experience • Skilled, fully insured, and reliable team • Transparent quotes and regular updates • Clean, safe, and well-organised working practices • Strong portfolio and repeat customers We work closely with every client to understand their needs,
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THE AAKTR GROUP LTD
No reviews yet
Extension Builder in Carshalton
At Aaktr Developments we formulate bespoke design & construction. Residential Properties: From design to refurbishment elegant, tailored homes that blend style, functionality, and innovation. Commercial Spaces: Designing and refurbishing sophisticated offices, vibrant cafes, and standout restaurants that reflect the unique identity of our clients. Churches: Preserving heritage and enhancing functionality through thoughtful redevelopment. Concept Design: Bringing your ideas to life with innovative and inspiring design concepts that set the foundation for your project. Full Architectural RIBA Services: Comprehensive architectural planning and design, adhering to the highest standards of the Royal Institute of British Architects (RIBA). Full RIBA/Construction Services: From initial planning to final construction, we deliver bespoke, high-quality solutions, ensuring every detail is crafted to perfection and on time.
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Baarc Ltd
No reviews yet
Extension Builder in Carshalton
BaArc Ltd is a design led practice, specialising in Home Alterations, Conversions, Extensions and small scale New Build Housing Developments. With nearly 20 years of experience in both architecture and construction the company director has acquired a wide knowledge base which offers a comprehensive Design & Build service. BaArc Ltd can take you from initial concept through the planning process and onto the successful construction of your project.
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House Renovation Services London LTD
No reviews yet
Extension Builder in Carshalton
I am a London based cont actor with over 10 years experience in property renovation and construction. I specialise in delivering high quality building work, from full refurbishments to extensions and new builds. I pride myself on reliable service, clear communication, and excellent workmanship.
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Sky House Construction Limited
No reviews yet
Extension Builder in Carshalton
At the heart of our success lies our CEO & Founder, Spyros. A true visionary, Spyros has successfully brought together a team of passionate professionals, all united by a shared vision for SkyHouse's bright future. His relentless pursuit of perfection and enthusiasm for tackling challenges drive our company forward. Spyros’s leadership and innovative mindset ensure that SkyHouse continues to set new standards in the industry, consistently delivering excellence in every project. Our guiding principle, “The Sky’s the Limit,” embodies our dedication to realizing the utmost potential of your home. We recognize that your dream house is a unique manifestation of your values, and we channel all our efforts into making your vision a reality.
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DS Developments
Rating: 5 out of 5
Extension Builder in Carshalton
My business is offering service in all the aspects of renovation, refurbishment and building work. My team is very reliable and respectful of our client's property. We work hard to make sure that all the work carried out is to the highest standards.
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Latest review:
Garden Maintenance- 17 Sep 2017
I hired DS Developments to completely landscape my small front garden. This involved clearing and levelling the area; moving and re-securing a bike shed; laying a patio and lawn; and a number of finishing touches. The area went from somewhat of an embarrassing eye-sore to an area of pride. One that several neighbours have already made compliments about. David provided a professional service from start to finish. His quote was more than I expected, but his knowledge and vision gave me the confidence to select his services. He provided a selection of options and stuck to budget; adapted well to new ideas/suggestions; and informed in advance where the cost would be impacted. He and his team also were as tidy and considerate as possible and I highly recommend their services.

4.3

Top rated Extension Builders

Our Extension Builders in Carshalton, are rated 4.3 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Carshalton?

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

Find extension builders in Carshalton with MyBuilder

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

Step 2: Compare different extension builders in Carshalton

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

Step 3: Hire Carshalton extension builders with confidence

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

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

What to ask a Carshalton extension builder before hiring?

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

An extension builder in Carshalton 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 Carshalton 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 Carshalton?

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 Carshalton 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 Carshalton 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 Carshalton

Can an extension builder in Carshalton help with planning permission?

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

Many Carshalton 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 Carshalton help with materials and finishes?

Yes, most extension builders in Carshalton 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.