Extension Builders in Streatham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

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Some of our top rated extension builders in Streatham

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Next Vision Development
Rating: 5 out of 5
Extension Builder in Streatham
For over a Decade, Next Vision Development has been delivering high-quality property refurbishment and construction services. Our dedicated team takes pride in its professionalism, reliability, and exceptional craftsmanship. We work with both homeowners and businesses, providing tailored solutions that bring your vision to life. Our Services Include: - Complete Property Renovations & Refurbishments - Kitchen Fitting & Full Renovations - Bathroom Renovations - Painting & Decorating - Flooring (Laminate, Engineered, Vinyl, Solid Wood & more) - Plumbing & Heating Solutions - Carpentry & Joinery - Paving & Patios - Property Extensions - New Builds At Next Vision Development, we combine expertise, attention to detail, and a commitment to excellence to ensure every project is completed to the highest standards. Whether it’s transforming a single room or managing a full-scale property development, we deliver results that exceed expectations. *WE ARE CURRENTLY UPDATING OUR PICTURE PORTFOLIO, SO PLEASE DO NOT HESITATE TO ASK FOR MORE PHOTOS OF PREVIOUS PROJECTS THAT WE HAVE COMPLETED* THANKS IN ADVANCE.
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Latest review:
Restoration & Refurbishment- 3 Jun 2020
Very Harding working and conscientious. They have done an outstanding job with which both me and my wife are very pleased with
MB Building & Management Ltd
Rating: 5 out of 5
Extension Builder in Streatham
We are building company with a focus on energy efficiency, air tightness and excellent build quality. Within the company there are two main areas of trade. One side predominantly focuses on high end full refurbs. The other is property management for landlords. Hence, we undertake a variety of jobs, ranging from handyman jobs and small roof repairs to basements and full new builds. We are mainly active in Battersea, Wandsworth, Clapham, Chelsea and Fulham.
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Latest review:
Extensions- 23 Jan 2023
Monika, Mario and the team were excellent! Finished the job to a very high standard. Monika was all over the details and Mario was highly skilled and just got things done. Despite the project overrunning by a month or so (really not that bad vs target), we can not wait to work on another project with Monika again.
KG BUILD
Rating: 5 out of 5
Extension Builder in Streatham
With your specifications and our expertise, we happily take on any building work and produce excellent results. Extensions, Loft conversions, kitchens, bathrooms, garden rooms/studios/outbuildings, roofing, flooring, carpentry and joinery etc
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Latest review:
Carpentry- 13 Dec 2025
Kwame did a great job and was thoughtful, communicative and very skilled with the work he was carrying out on our joists. I would recommend KG build to anyone looking for a good price and a high standard of work.
swlbc ltd
Rating: 5 out of 5
Extension Builder in Streatham
SWLBC Ltd is an established, family run, local building company in SW11. We really care about our clients and aim to provide the highest quality, cost effective service, however large or small the project. From home improvement to renovation or extensions to your property, we can provide a comprehensive service. Please contact us to see if we can help you today and provide a free quote for your works.
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Latest review:
Conversions - General- 3 Jul 2023
We chose SWLBC to refurbish a two-bedroom flat. This entailed complete redecoration, replacement of the flooring with a new engineered wood floor, moving old and installing new electrical sockets and light switches, running some new piping and replacing the heating system with a more modern and efficient one. The quote from SWLBC was very competitive and we are really happy with the quality of the work. The flat is transformed and it looks terrific. Ben Toone who is the proprietor of the company is very professional and helpful. He was easy to contact and responded to our questions quickly and thoroughly. We met some members of his team during the works and they are hard working and competent. They also cleaned up the site beautifully after they had finished. Thank you Ben and your team. We are delighted with your work and highly recommend SWLBC.
O&C General Construction ltd
Rating: 4.2 out of 5
Extension Builder in Streatham
O&C General Construction is a construction company that specializes in renovations and general construction. The company has a wide range of experience, from renovations to new construction, and is able to provide a high level of service and quality workmanship. What inspired us to start our own business is adding value to people’s lives, by creating the perfect home for each client, by listening to their needs and create a project that’s perfect for them.
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Latest review:
Restoration & Refurbishment- 19 Apr 2026
Didn’t return to finish the job, respond to calls or messages in response to finishing the job. Sadly wouldn’t hire Ovi & Mihai (O&C) again. Friendly & responsive initially. Worked well, on time, eager to please, did a good job - not perfect but adequate, average attention to detail but corrected when asked. We initially had a faux chimney put in, they touted for more work & provided alcove shelving/cabinet ideas which we subsequently hired them for. They worked intermittently (dad around for first half of job then left for Romania) as this was agreed as best for both parties. However they left the job incomplete once paid (were paid on time, each time, with no bargaining). Didn’t respond to texts or calls, leaving cabinet doors unfinished, large chips & cracks unfilled. Laminate was also poorly cut around hearth stone, left chimney cutout unfinished with no cement to the base. Lack of respect and wouldn’t hire again as cannot trust they won’t disappear. Note previous reviews.
Hampton Equity Ltd
Rating: 5 out of 5
Extension Builder in Streatham
Hampton Equity is a specialist home refurbishment company delivering high-quality bathroom fitting, kitchen installations, and full residential property renovations. With a strong focus on craftsmanship, detail, and client satisfaction, Hampton Equity transforms living spaces into functional, stylish environments tailored to each homeowner’s vision.
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Latest review:
New kitchen fitted. Happy with the job would recommend.
Tim's Painting
Rating: 4.9 out of 5
Extension Builder in Streatham
Hi! My name is Tim.I have been working in the building trade for a very long time which has helped me a lot to gain lots of experience in different trades. We are based in Sutton but work allover the place in Surrey area. Quality of our job has helped our company to expand our business.
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Latest review:
Painting & Decorating- 21 Apr 2026
I could not recommend Tim enough. From when he came to quote for the job to completion he was very professional. We had our whole flat painted and he and his work colleague did the whole thing in 4 days. He kept us updated as he went and suggested things that needed extra work or extra coats of paint to protect the walls better. I really was very impressed by Tim and am very happy to recommend him for your painting needs.
Molina & Hofmann Ltd
Rating: 4.6 out of 5
Extension Builder in Streatham
We are a small but long-standing team of experienced trades men. We have done extensions and conversions, and all jobs around renovation projects. Our detailed quotes explain the costs. We do not sub-contract jobs and if you have any questions, I will always be your main contact person.
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Latest review:
Restoration & Refurbishment- 14 Dec 2016
Ended with a great result
Viranna Professional Building and Cleaning Service Ltd
Rating: 4.4 out of 5
Extension Builder in Streatham
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.
Rose and Stone Limited
Rating: 5 out of 5
Extension Builder in Streatham
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.
Zhu Construction LTD
Rating: 5 out of 5
Extension Builder in Streatham
We are a family run construction business that undertakes numerous building works. Our team comprises of skilled individuals with our lead project manager holding over 20 years building experience. The most common types of work we carry out are: loft conversions; single story extensions; full internal and external house refurbishments.
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Latest review:
The works were for a full house refurbishment. This included bathroom and kitchen installation. Also, each room was brought to a high standard. The works were done in a timely manner and the staff were super friendly. If you had any questions they would assist with no problem. Definitely builders I recommend.
Matt Spooner Carpentry
Rating: 5 out of 5
Extension Builder in Streatham
Over 15 experience in all aspect of Building works from domestic to commercial, including extensions and loft conversions. All interior works covered for example fitting doors, architrave, skirting, flooring. All exterior works covered for example all first fix carpentry, roofing, decking. All work carried out to a professional, tidy and to a high standard. Please do not hesitate to contact me.
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Latest review:
Carpentry- 26 Aug 2020
Matt did a fantastic job for us fitting a kitchen and boarding out the attic. He was professional, courteous and really helpful in figuring out how best to help us. He listened to what we wanted and really understood what we were trying to achieve. As a result we were very happy with the result and plan to use his services again in the near future. Highly recommended.
Huseco Limited
Rating: 3.7 out of 5
Extension Builder in Streatham
HUSECO Limited is a well-established family business specialising in domestic renovation and construction projects. Our portfolio of skills also includes architectural design, interior design, and planning, which allows for stylish renovations, extensions, lofts, and modern living spaces. We have a loyal team of highly skilled builders, and the dedicated project manager personally oversees all our projects
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Latest review:
Extensions- 14 Sep 2025
How long should a 3m extension take if drawings were approved in April, the conservatory was demolished, the foundation completed, and the steel structure was already on site by May.?
Console Building Solutions LTD
Rating: 5 out of 5
Extension Builder in Streatham
Trusted builders who turn your ideas into reality – from small fixes to full renovations. Quality workmanship, honest pricing, and a team that treats your home like their own.” You dream, we build – reliable construction and property care you can count on
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Latest review:
Console Building Solutions Ltd recently completed my rear extension along with a new bathroom and kitchen installation. We were living in the property throughout the project, and the team carried out the work professionally without causing us any hassle or disruption. The quality of the finish and workmanship is immaculate, and the whole project was completed to a very high standard. Highly recommended.
Building Dimensions
Rating: 4.9 out of 5
Extension Builder in Streatham
Family run company with 25+ years experience in Building/ Decorating. Registered member of Fairtrades since 2002, guaranteeing a high standard of work. Our company provides a friendly, reliable, and professional service
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Latest review:
Extensions- 10 Oct 2022
Gary and Keith are excellent builders who know what they are doing. The did a great job building our extension and stuck to the brief, bearing with me changing my mind. They are not the quickest, but the job will be good when it gets done eventually.
London project contractors ltd
Rating: 5 out of 5
Extension Builder in Streatham
Welcome to London Project Contractors LTD – Your Trusted Home Transformation Experts At London Project Contractors LTD, we specialise in bringing your property dreams to life. Whether you're looking to expand your space, upgrade your interiors, or improve your home's energy efficiency, we've got you covered. Our core services include: House Extensions – Seamlessly add space and value to your home. Loft Conversions – Turn unused lofts into stylish, functional living areas. Bathroom Fittings – High-quality installations designed for comfort and elegance. Insulation Services – Energy-saving solutions to keep your home warm and efficient. Property Conversions – Expertly transforming spaces to suit your lifestyle. With years of experience and a commitment to quality craftsmanship, we ensure every project is delivered on time, on budget, and to the highest standard. Let us help you build better – get in touch today for a free consultation!
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Latest review:
We recently had a loft extension completed along with wooden flooring throughout the house, underfloor heating installation, and a full silicone render — and we couldn’t be happier with the results! The team were an absolute pleasure to work with from start to finish. Their innovative and creative thinking really set them apart — they found smart solutions to challenges and helped us maximise space and style in ways we hadn’t even considered. What impressed us most was their attention to detail and how clean and tidy they kept the site throughout the project. It made a huge difference knowing the work was being done to such a high standard, without the usual mess and disruption. Whether it was a small detail or a big task, nothing was ever too much trouble. No job was too big or small — they approached everything with the same level of care and professionalism. If you’re looking for a reliable, forward-thinking team who take real pride in their work, I couldn’t recommend them more highly!

3.9

Top rated Extension Builders

Our Extension Builders in Streatham, are rated 3.9 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 Streatham?

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

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

What are the hourly rates of extension builders in Streatham?

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

Find extension builders in Streatham with MyBuilder

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

Step 2: Compare different extension builders in Streatham

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

Step 3: Hire Streatham extension builders with confidence

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

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

What to ask a Streatham extension builder before hiring?

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

An extension builder in Streatham 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 Streatham 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 Streatham?

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 Streatham 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 Streatham 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 Streatham

Can an extension builder in Streatham help with planning permission?

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

Many Streatham 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 Streatham help with materials and finishes?

Yes, most extension builders in Streatham 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.