Extension builders in Carshalton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (18 reviews)

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Some of our top rated extension builders in Carshalton

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Michal Palucki
Rating: 5 out of 5
Extension Builder in Carshalton
I am a carpenter from trade, with 15 years of experience. My services include: new window installation /replacement /repairs, Internal and external door installation /replacement /repairs, Lock installation/change, glazing, adjustments, secures
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Latest review:
Windows & Doors (uPVC & Metal)- 20 Aug 2019
Great quality work and super accommodating! Highly recommend.
London Homez ltd
Rating: 5 out of 5
Extension Builder in Carshalton
We are Experienced but young passionate and dedicated Builder/Contractor. Don’t ask if we can do this or that just ask when we can do it. We carry out all type of works for residential and commercial properties. We provide all certificates as well. We are one door shop to carry out every type of work. You would be relieved from contacting different people for one project. We do welcome small and big jobs.
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Latest review:
I had my double side and single rear L shape Extension which had kitchens and bathrooms with bedrooms. It was turnkey project and didn’t know them before but they are Pro Contractor as they got all planning permission approved with structural calculations. They completed work in time with high standard quality and regulations and got my certificates from council. I would recommend them as Pro builder all the time.
FLYNN properties
Rating: 5 out of 5
Extension Builder in Carshalton
With over 10 years experience and always producing high quality finishes. From kitchens, bathroom to extensions and always with a good positive happy attitude. let us work with you to design and achieve exactly what you’re looking for.
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Latest review:
Tiling- 7 Aug 2023
Paul was great. Easy regular comms. Arrived early on the day and fit me in as best he could. Straight to it, great work, very professional and sorted out some other problems as they were discovered. Talked me through options and did what was asked to a very high finish. Would highly recommend and use again.
Edi
Rating: 5 out of 5
Extension Builder in Carshalton
Hello my name is Edi.I am a general builder with 10 years experience.Renovation,Extension,Roofing, Kitchen,bathrooms,Wood Flooring,Gardening,Driveway etc
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Latest review:
Helpful; will hire again
Ian Cameron
Rating: 5 out of 5
Extension Builder in Carshalton
I have been working within the building industry for over 25 years, I trained as a roofer with a roofing company, after that joined with my dad in a family run building firm gaining experience and knowledge in a wealth of trades. We undertake a variety of work within the industry, extensions, lofts, kitchens and bathrooms and all the consequent work involved within these aspects of building done to a quality standard. We aim to keep our clients happy with a friendly professional service.
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Latest review:
Guttering- 7 Oct 2018
Ian came and quoted by far the best price for a small gutter job. He was quick and efficient and would definitely use him again.
Swami Builders Ltd
Rating: 5 out of 5
Extension Builder in Carshalton
General Builders - Extension - Loft conversion - Painting - Bathroom - Kitchen - Flooring - Roof work - Double glazing - Gutters and Fascias - Garden paving - Plumbing and Central Heating - Electric
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Latest review:
Fitted new bathroom Fitted new kitchen Plumber and tiling
Morris Carpentry & Construction ltd
Rating: 5 out of 5
Extension Builder in Carshalton
Morris Carpentry & Construction are a family run business with over 40 years experience within the building industry. All our team are fully qualified in their own individual trades, which covers all aspects of building projects. We take the upmost pride and satisfaction in all of our work and treat your home like our own. We are more than happy to provide free estimates for any work you may require.
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Latest review:
From start to finish perfect, very good communicator, no hidden extras, very clean, can't knock him or the lads at all Many thanks Jack for a job egoless done Highly recommend
Rose and Stone Limited
Rating: 5 out of 5
Extension Builder in Carshalton
Whether it is an extension or large-scale scheme, we take dignity in taking the client’s vision through to delivering a quality project at the right time and cost. This is made possible by the company being excelled by a Chartered Architect with broad construction experience and a fine eye for detail. A valuable understanding of both traditional and modern techniques along with a firm grasp of materials enables us to provide the client with opportunities to make their concepts a reality.
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Latest review:
New Builds- 7 Jun 2022
Sohail worked closely with me on this project. Providing detailed costings, work schedules and build timelines. Filling my knowledge gaps with his extensive experience he was able to assist over and beyond what I expected from him. Unfortunately due to circumstances out of my control this development project didn’t go ahead. However when the next opportunity for a new build comes up I will definitely be using Rose and Stone. I did have another job going at the time where the other builder badly let me down and left me with a big problem on my hands…. Sohail and his team stepped in and took on the project. The team finished the job exceptionally well, which was a full on top to bottom conversion, some internal reconfigurations and with the addition of a loft and new downstairs WC. The workmanship and overall quality of the job was excellent. My wife is over the moon with the results, taking the house from a three bed one bathroom to a four bed 3 bathroom house. We would definitely recommend Rose and Stone for this type of extensive refurbishment/loft conversion work and look forward to working with them in the future on bigger development projects.
Muhammad virk
Rating: 5 out of 5
Extension Builder in Carshalton
We undertake all kind of work. And our priority is to provide quality work
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Latest review:
Restoration & Refurbishment- 1 Mar 2023
Mohammed was very helpful and understanding I was very impressed about his work
NuuHome
Rating: 5 out of 5
Extension Builder in Carshalton
We at Nuuhome are highly motivated & experienced Multi-traders/Builders. We usually create our own work by developing and renovating property’s but We’ve now decided to use all our expertise and highly skilled tradesmen to do general maintenance. -New Builds -Extensions -Bathrooms -kitchens -plumbing -Electrics -Handyman jobs considered We only use the best people with all the relevant qualifications and stride to do the job within a reasonable timeframe where possible.
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Latest review:
Floor and wall tiles in bathroom
W&P Building Services LTD
Rating: 5 out of 5
Extension Builder in Carshalton
Here at W&P Building Services we pride ourselves with providing excellent service, expertise and pay close attention to details. We to offer all aspects of carpentry and joinery. As a company we confidently aim to offer our professionalism and ability to meet the demands and expectations of our customers. Please feel free to get in touch for a free consultation and quote.
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Latest review:
Joinery & Cabinet Making- 22 Jan 2025
Absolutely incredible work. We've used W&P several times over the last 18 months and each time we've had something different and unique, delivered to perfection as we wanted. They are extremely versatile in their work, best we've worked with and couldn't recommend enough
Viranna Professional Building and Cleaning Service Ltd
Rating: 4.4 out of 5
Extension Builder in Carshalton
Viranna Brickwork Contractors are actively looking to take on more work and would like to be in your tender list. We are based in Surrey, South Croydon, but travel and work all over the South East. We have over 10 years’ experience in the Building industry and taking pride in the job. Looking forward to work with you on your next project. Viranna Professional Building and Cleaning Service LTD
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Latest review:
Bricklaying- 26 May 2020
Very professional and reliable. Quality of work is very high standard and will definitely use their services again. Come highly recommended.
L.A.Building Services Ltd
Rating: 5 out of 5
Extension Builder in Carshalton
We have 20 years of general building experience. We take pride in our work and strive for the best results to provide an efficient and professional service. £5 million public liability insurance and all work guaranteed for one year and comply with British build standards.
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Latest review:
Conversions - General- 21 Mar 2026
Arturas and his team have done an outstanding job in a complex, full-flat renovation involving structural work, floor levelling, complete electrical rewire, complete re-plumbing including pumps and heater, full bathroom and kitchen fitting, basically everything. I honestly could not have hired a better builder. Quality: the team is exceptionally dedicated and diligent, following the design to the millimetre, reading every specification and installation instruction, being exceedingly careful to ensure everything is done at a high standard. The result speaks for itself - everyone who visited the flat is in awe about the quality of workmanship. Expertise: the team really knows what they are doing. There was nothing they can’t handle, and they found very smart solutions to every problem. They advised me at every step of the way, with patience and clarity. Honesty: Arturas, Vasyl and Vova are excellent people, honest to the bone, trustworthy and principled. In summary, top class builders.
Tee&Zee
Rating: 5 out of 5
Extension Builder in Carshalton
Hi, we are a reliable, efficient team who love what we do. With 8 years of experience in the building industry, we offer a various type of work, from Loft Conversion, Rear Extension, Side Extension, Full Refurb, Kitchens, Bathroom, Even As Small As Putting A Picture Frame On The Wall. We take pride in our work, and ensure the work is 10/10. We are on time, friendly and trust worthy. We are the team to choose!
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Latest review:
Kitchen Fitting- 1 Jan 2023
I have to say that Tyrone who carried the work out for is very professional and commendable. He was always on time and eager to get the work done. His attention to detail is simply quite impressive. Having completed the work i was rather surprised to learn that he called back the next day only to complete a very small detail that he forgot. A small detail that was not exactly noticeable, thus leaving us with satisfactory results. I’m certainly going to recommend their services to anyone who might require their services. Many thanks 👏👏👍
A-level building services
Rating: 5 out of 5
Extension Builder in Carshalton
Welcome, thank you for looking at my listing. We have been helping customers for more than 15 years to convert their houses into homes. It is understanding how difficult it can be sometimes to make the right decision-so let us help you. Get in touch for a chat and arrange a free quote.
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Latest review:
Bathroom Fitting- 7 Nov 2024
Wouldn’t hesitate to work with Alex again, or recommend to others. Good communication, with all trades (plastering, tiling, electrics, plumbing etc.) completed to a high standard. Reliable and always on time. Reasonably priced.
F&G Design and Build ltd
Rating: 5 out of 5
Extension Builder in Carshalton
With a solid foundation of 15 years in the construction industry, our company has established itself as a beacon of excellence and reliability in transforming spaces Specializing in loft conversions, extensions, general building work, and renovations, we take pride in our ability to merge innovative design with impeccable craftsmanship.
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Latest review:
Bathroom Fitting- 14 Jun 2026
From start to finish, Darren and Aldi were completely professional and we are really happy with the finished result. They made design suggestions to help us make choices based on their vast experience and worked positively with us. The work was completed skilfully and with care. We would definitely recommend them without hesitation.

4.3

Top rated Extension Builders

Our Extension Builders in Carshalton, are rated 4.3 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 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.