Extension builders in Mitcham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (21 reviews)

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Some of our top rated extension builders in Mitcham

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A C PARKES LTD
Rating: 5 out of 5
Extension Builder in Mitcham
We are family run building company for more 20 years. We undertake any type of extension and renovation projects todo with domestic properties.
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Latest review:
Kitchen Fitting- 12 Nov 2019
Darren was punctual and efficient and work was carried out to our satisfaction.
Helder Aguilar
No reviews yet
Extension Builder in Mitcham
I like to be responsible, clean and tidy with my work and with good finishes to give the best service to the customers
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Loft Haven Ltd
No reviews yet
Extension Builder in Mitcham
We specialise in a wide range of loft conversion types tailored to different property styles. Whether you’re considering a space-enhancing Dormer, a bright and airy Velux loft, or a full Mansard transformation, we offer bespoke solutions to suit your needs. Our expert team will guide you through every option – including Hip to Gable and L-Shaped Dormers – to find the ideal fit for your home, layout, and lifestyle goals.
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Ng builders
No reviews yet
Extension Builder in Mitcham
NG BUILDERS we undertake all types of building work and always complete to the highest standards
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buildhub
No reviews yet
Extension Builder in Mitcham
About Me Hi, I’m Joe. I specialize in creating custom paintings that bring life and personality to any space. Whether you’re looking to transform a room or add a unique touch to your home, I’m here to make it happen—quickly and hassle-free. I’m all about making the process easy for you, from idea to finished piece. Let’s get it done!
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Smart Environment Services Ltd
No reviews yet
Extension Builder in Mitcham
At —Smart Environment Services— we look after all your -domestic & commercial- Gas , Heating and Control systems. <<Our goal is to provide 1st class services with full customer satisfaction>>
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Delta Alpha Building Services
Rating: 5 out of 5
Extension Builder in Mitcham
Delta Alpha Building Services is a family run business with 35 years experience in domestic construction services. We undertake works from smaller jobs (eg. Door hanging) to large construction works (eg. Extensions and conversions).. All our tradesmen are fully qualified and insured. Free phone consultations and estimates, prompt reply and service. We treat your home as if it were our own.
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Latest review:
April 2025 Delta Alpha built a raised decking to the back of my garden. We were very happy with the work and would definitely use this company in the future.
SHIVAY DEVELOPMENTS LTD
Rating: 5 out of 5
Extension Builder in Mitcham
From Concepts to Creations, Shivay Developments Ltd has combined experience of over 15 years in Construction trade. Our team consist Expert Tradesmen and Experienced Project Managers with a single point of responsibility and accountability throughout the construction process.
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Latest review:
Extensions- 3 Jun 2020
Mohit and his team at Shivay Developments completed extensive improvement work in my house (rear extension, internal structural work, kitchen, toilet, boiler installation, plumbing and electricals, flooring & finishing). The end result exceeded all my expectations in terms of cost, time and quality making me a very happy man. Sharing some pictures would have done proper justice but unfortunately there doesn’t seem to be a way to upload pictures with the feedback. In spite of living inside the property whilst the works were ongoing, we hardly felt any impact owing to how well Mohit had planned the whole thing and the advance notices he used to give us from time to time. All the guys too were very considerate when it came to minimizing the inconvenience all the dust and noise could cause to us and also the neighbours. I also liked the fact that nothing was rushed and a great deal was given to attention for details and the result was just splendid. I guess at the end of the day, it’s what you see that matters most. However amongst everything that hit the right notes for me during the entire process, it was the confidence that I can trust this team to do the job right stood out. It was a bunch of warm and friendly people who had direction and knew what they were doing. A special mention and a big thank you to Kash and Pala to lead the work from the ground up and Mohit for taking up and managing the job and of course for the celebratory rounds of beers :) Do keep in touch
GH Build Specialists
No reviews yet
Extension Builder in Mitcham
NvQ level 6 construction manager with 20 years construction experience.
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Bogdan Pana
No reviews yet
Extension Builder in Mitcham
TOP QUALITY MAINTENANCE & CONSTRUCTION delivers internal and external works, adapted to our clients’ needs and specifications, providing top quality maintenance, refurbishment and repairs, all work being executed by our skilled and experienced team of technicians.
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Terry Agyeman
No reviews yet
Extension Builder in Mitcham
Am Terry and a general builder
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Tecktōn Consulting
No reviews yet
Extension Builder in Mitcham
Helllo I am a kiwi builder that has moved to London with 10 plus years of experience. I've spent my time building decks/fences to multi-million dollar homes. I am a fully NZ qualified level 4 Carpenter. The capability to do foundations first fix, second fix decks etc. I would be very excited to have the opportunity to take on your project Kind regards Dj Tecktōn Consulting
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Hills builders
Rating: 4.7 out of 5
Extension Builder in Mitcham
Hi I'm Lee a general builder with 25+ years experience, specialising in: * Landscaping * Groundwork’s * Brickwork * Roofing * Carpentry * Extensions/ Refurbishments * Emergency call outs I pride myself on being being highly knowledgeable and reliable, focusing on clear communication from the start to enable projects to be completed exactly what is envisioned by you, on time and within budget. Get in touch for a free no- obligation quote Regards Hill's builders
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Latest review:
Guttering- 28 Oct 2026
Lee installed a new downpipe and checked and cleared our existing gutters. Lee was really thorough and went the extra mile to ensure everything was working smoothly after. Very friendly chap and excellent communication. Highly recommended.
Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in Mitcham
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
13-13 BUILDERS LTD
Rating: 4.5 out of 5
Extension Builder in Mitcham
I do plastering, plaster board, carpentry, partition, roofing, groundwork’s, driveways, gardening, extension, loft conversions
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Latest review:
Carpentry- 25 Apr 2026
Very helpful, fixed my front door sill and other odd jobs around the house. Would call again and good quality
House2Home
Rating: 5 out of 5
Extension Builder in Mitcham
House to Home Atelier is a local building company based in Abbey Wood, South East London. We specialise in end-to-end home renovations and construction, from initial design and planning to final finishes. Our team delivers loft conversions, house extensions, full refurbishments, bathrooms, kitchens, and bespoke interior solutions, always with a focus on quality, efficiency, and maximising space. We combine traditional craftsmanship with modern solutions, ensuring every project is completed on time, on budget, and to the highest standards. With our experience and carefully selected team of skilled tradespeople, we take care of everything from structural work and plumbing to carpentry, plastering, and finishing touches. We are local, accountable, and hands-on, so you always know who is managing your project. Your home is your investment, and we treat it as our own. Whether it’s a small repair or a full-scale renovation, we deliver solutions that maximise space, enhance character, and provide lasting quality.
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Latest review:
Works consisted of hip to gable loft conversion under permitted development and a refurbishment of the first floor of a semi-detached house into a four bedroom/bathroom layout, including new windows, balconies, wiring and plumbing as well as sound proofing the walls. With 100m2 of works this was my first introduction to a major building project and I was worried by the horror stories I have heard about builders. From the outset Monika set my mind at rest, listening to what I wanted, making helpful suggestions, offering tips for instance on how to save on the scaffolding and always asking me when choices needed to be made. She took the trouble to ensure that I knew what was happening, with daily photos of progress without the need for me to climb scaffolding. I was working to a tight timescale and budget, which Monika understood, and even having accommodated a number of changes including some additions, the project came in on time and on budget. All of the workers on the site were very professional and the quality of the work and the attention to detail was exceptional. I have no hesitation in recommending Monika and her team - I went into this project apprehensive and not sure what to expect; thanks to Monika, I came out the other side delighted by and looking forward to working with her and her team again to renovate my ground floor.

4.4

Top rated Extension Builders

Our Extension Builders in Mitcham, are rated 4.4 out of 5 based on 21 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Mitcham?

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

Find extension builders in Mitcham with MyBuilder

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

Step 2: Compare different extension builders in Mitcham

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

Step 3: Hire Mitcham extension builders with confidence

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

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

What to ask a Mitcham extension builder before hiring?

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

An extension builder in Mitcham 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 Mitcham 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 Mitcham?

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 Mitcham 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 Mitcham 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 Mitcham

Can an extension builder in Mitcham help with planning permission?

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

Many Mitcham 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 Mitcham help with materials and finishes?

Yes, most extension builders in Mitcham 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.