Extension builders in Mitcham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (20 reviews)

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Some of our top rated extension builders in Mitcham

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Himanshu
Rating: 5 out of 5
Extension Builder in Mitcham
Whether you're looking to modernize your home's exterior, improve insulation performance, or create a stunning brick-effect finish, we provide tailored solutions that combine aesthetics, durability, and long-term value. Contact us today to discuss your project and arrange a free consultation.
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Latest review:
Insulation- 16 Sep 2026
I hired Himanshu to do my external insulation work and I was more than pleased with the work he did. He paid attention to details, he was patient with the job. Himanshu and his team were always on time and fast as well. They did an exceptional job on my property. I am definitely hiring him again for any building and insulation works. I highly recommend working with him.
CHIRO Alliance Limited
Rating: 5 out of 5
Extension Builder in Mitcham
Chiro Construction covers all types of building work including major renovations, lofts, extensions, commercial conversions and bespoke carpentry. We manage all aspects of the build from inception to completion, from demolition to decorating. With a proven track record of delivering a wide range of high-end projects, we have a 98% approval rating from over 50 positive reviews. Most of our work comes from previous client referrals. Call or email us today for a chat to discuss your project.
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Latest review:
Restoration & Refurbishment- 4 Sep 2020
Octavian is a really great guy, very reliable, never disappoint, maintained good communication with us all the time. As a customer, obviously the most important part is great craftmanship, we have used other teams before and you can easily tell the difference between his work and the others. From things such as painting (you can tell they have paint and sand multiple times to provide such great finishing), tile installation (the gap between each tile is tiny, and they are very flat), Octavian’s team can get them all done. This job involves a full flat refurbishment, so the flat was completely stripped, knocked down a few walls, install new pipes / wire etc. During his work he has spotted many things that we have not noticed before. Unlike some other contractors who do not care, they will just finish what they were asked to do and leave. Octavian spotted it and recommend us the best solution for it, to provide the best outcome for the project. It is important to find someone who do care about the customer and the project. We will use him again for our future projects. Thanks. Tommy
LTF Construction Ltd
Rating: 5 out of 5
Extension Builder in Mitcham
Hi there my name is Liam Flanagan. I started my career as a bricklayer's apprentice shadowing and working over a period of 10 years doing general building work, including house extension refurbishments and new builds.
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Latest review:
Very efficient service, thank you.
Plastering and K rendering
Rating: 5 out of 5
Extension Builder in Mitcham
🏗️ General Builder • Roofing • Extensions • Refurbishment – London Looking for a reliable and professional builder in London? We provide high–quality construction and renovation services at competitive prices. ✅ Plastering & Insolation Silicone Rendering ✅ Our Services Include: • General Building & Refurbishment – Full house renovations, kitchen & bathroom fitting, plastering, flooring, painting & decorating. • Extensions – Single & double-storey extensions, side returns, rear extensions, loft conversions, and garage conversions. • Roofing Services – New roof installations, flat & pitched roofs, roof repairs, waterproofing, guttering & fascias. • Structural Work – Brickwork, concrete, foundations, and load-bearing alterations. 💪 Why Choose Us? • Experienced team with over 16 years in the trade • All work guaranteed & fully insured • Competitive, transparent pricing • Clean & reliable service – we treat your home with respect • Free, no-obligation quotes 📍 We cover all London postcodes – Central London,North, South, East & West.
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Latest review:
Plastering- 16 Mar 2020
Almed and his team came over to see the two bungalows and gave me a quote and was more reasonable than other quotes I had previously. Almed started the job and stated exactly what he was going to do from the beginning to the end of the job. He is a very professional and knowledgeable person and he and his team did a outstanding plastering job on my two bungalows and I’m very happy with the job and will highly recommend him for future projects. Thanks Zai
Frank
No reviews yet
Extension Builder in Mitcham
Very precise, clean work and reasonable charge
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A. plastering
Rating: 5 out of 5
Extension Builder in Mitcham
Hi. My name is Fatos. I have been in construction for over 17 years. We undertake rendering, plastering and painting jobs. High standard finish in very competitive prices. We also do loft conversion,roofing, plumbing, electric, tiling, extension ect. Our prioritie is to get the job done in very high quality
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Latest review:
Plastering- 22 Oct 2024
We needed to plaster our house ASAP and Fatos completed it in a short time. The house looks amazing, he was quick, efficient and was a great communicator. I would highly recommend him.
nishan builders ltd
No reviews yet
Extension Builder in Mitcham
More than just builders, we're partners in creating your dream home. As a family-run construction company in the UK, we specialise in extensions, refurbishments, and new builds, offering design and construction services tailored to your specific needs. We pride ourselves on clear communication, attention to detail, and a personal approach that makes the building process enjoyable.
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Reynolds Building and Maintenance Services
Rating: 5 out of 5
Extension Builder in Mitcham
Reynolds Building and Maintenance Services provides professional building, refurbishment, extension and handyman services for residential and commercial clients. We specialise in house extensions, property refurbishments, renovations, structural alterations and general building work, as well as all types of handyman and property maintenance services. From full property renovations and home extensions to small repairs and everyday maintenance, we deliver reliable, high-quality workmanship on every project. Whether you need building work, refurbishment services, or a trusted local handyman, we provide a complete solution under one service.
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Latest review:
Carpentry- 4 May 2026
Quick, easy and tidy. Very professional
Simple Building Solutions
Rating: 5 out of 5
Extension Builder in Mitcham
Simple Work Solutions is your trusted local building and property maintenance specialist. We provide reliable, high-quality building services, including renovations, garden rooms, kitchens, bathrooms, decorating, flooring, carpentry, landscaping and general property maintenance. We take pride in delivering exceptional workmanship, clear communication and a professional service from start to finish. Explore our recent projects and see the difference for yourself.
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Latest review:
Garden Maintenance- 19 Jul 2026
Professional service from this business and Anthony. They came at the time they promised, done a great job with the removal and kept me up to date with the progress. Really honest business with whom I plan to do more work in future. Keep it up!
SEASOUTH BUILDS LIMITED
Rating: 5 out of 5
Extension Builder in Mitcham
At Seasouth Builds, we bring over 5 years of hands-on experience in the building and construction industry. Known for our loyalty, reliability, and attention to detail, we take pride in delivering high-quality workmanship on every project
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Latest review:
Tiling- 24 Sep 2025
I hired seasouth builds because not only did he give a really reasonable quote, but he also had knowledge of tiling over retrofit underfloor heating - which other tilers seemed to be really hesitant to work with. The job was done to an excellent standard - he’s a real perfectionist. It did take a bit longer than expected, due to some floor level issues which he didn’t account for when he quoted. I was really worried about the price increasing out of my budget when we started running over time, but I was so grateful to find that he was a really honest guy who stuck to the agreed quote and didn’t try to make it my problem one little bit. He was polite and friendly throughout the whole job, turned up whenever he said he would, and kept in constant contact. Really honest (I happily left him unattended in my property). Customer service was excellent, nothing was too much trouble. 10/10 would recommend.
MGR Construction
Rating: 5 out of 5
Extension Builder in Mitcham
Hi i have 12 years experience on this sector jobs that we undertake are full house renovation ,loft conversion Extension and Landscape.
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Latest review:
Fencing- 7 Oct 2018
Straight forward, easy to deal with, tidy, even removed an old shed for us. Would definitely use again.
POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in Mitcham
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
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Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez
RnRbuilders
No reviews yet
Extension Builder in Mitcham
I have been in this business for years now. Within those years gained valuable skills that has enabled my business to grow graciously within the building trade. No job is too small or too big from changing a lightbulb to building an extension all our within our capabilities. We always put the customers first.
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B&D Construction London Ltd
Rating: 5 out of 5
Extension Builder in Mitcham
Hi Our company undertake jobs ,Loft Conversion, Extensions, Carpentry, Gardens, Plumbing/Electrical , Plastering and Decorating,
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Latest review:
We’ve had multiple jobs done by Silviya. The first was a small extension and downstairs and partial upstairs refurbishment with new kitchen and 2 bathrooms fitted. This large job was completed within 16 weeks and looks exactly as we hoped. Given the extent of works we moved out for the build. The second was the construction of an outbuilding and garden redesign (patio and astro fitted). Again the results are great. We lived in during this project and I worked from home without disturbance. The latest has been the re-fit of new windows, front door and fixing the front render. Again, the results are very professional and minimal disturbance while the work took place. Will definitely use him and his team again, should we need any more building work and recommend them to others
Walter weir Ltd
Rating: 5 out of 5
Extension Builder in Mitcham
Walter Weir Ltd - established as a design and build contractor for the highest specification projects in residential and commercial developments in London & The South East. Our team of skilled tradesman, project managers & architects cover all scope of works within construction, who are experienced professionals, making the dream a reality for every client. We believe in cementing lasting relationships with clients & this can only be achieved by maintaining a constantly high standard of work.
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Latest review:
Groundwork & Foundations- 19 Feb 2020
Donald Weir was really professional and helpful. They got the work done and handled our queries with patience. We will be soliciting their services again very soon!
Silva
Rating: 5 out of 5
Extension Builder in Mitcham
Hello, my name is Thiago, and I am a carpenter specializing in custom furniture, installations, and high-quality finishes. With years of experience in the field, I always strive to combine quality, precision, and excellent craftsmanship in every project. I work with shelf installation, doors, flooring, custom furniture, and more, ensuring a well-executed service with high-quality materials and a perfect finish. My priority is always customer satisfaction, delivering solutions that blend functionality and aesthetics. If you’re looking for a reliable and professional carpentry service, get in touch, and let’s transform your space with durable and well-crafted work! 📍 Serving London 📩 Contact me for quotes and inquiries
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Latest review:
Joinery & Cabinet Making- 1 Feb 2025
Brilliant job done, made it look easy, would definitely recommend

4.4

Top rated Extension Builders

Our Extension Builders in Mitcham, are rated 4.4 out of 5 based on 20 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.