Extension Builders in Streatham Vale

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Streatham Vale

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Paul Millard Design Ltd.
Rating: 5 out of 5
Extension Builder in Streatham Vale
I provide architectural design and project management services from my base in Surrey, typically carrying out residential work, including new build housing, extensions and conversions. I have over 30 years experience within the sector and offer a quality service at competitive rates.
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Latest review:
CAD / Drawings- 14 Jun 2020
Paul has been great to work with and produced drawings and a plan we're really happy with. We're continuing to work with him on planning permission. Thanks!
Jaspal
Rating: 5 out of 5
Extension Builder in Streatham Vale
Hi,i work very well and im very carefull about thier work.
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Latest review:
Plastering- 3 Aug 2022
Very good job and kept tidy, would recommend.
Cambridge group
No reviews yet
Extension Builder in Streatham Vale
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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Actonstruction
Rating: 4.1 out of 5
Extension Builder in Streatham Vale
Actonstruction as one of the premier builders in London carries out all aspects of building work including extensions, loft conversions, renovations, roofing, joinery and much more. We are focused on providing high-quality service and customer satisfaction.
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Latest review:
Extensions- 2 Mar 2017
I used the firm's services to build an extension. Darek himself seems to be a hardworking and reliable individual. Problem is - he surrounded himself by some not very professional people, including close family members, who make things much worse for him. The other problem was that most of his team members do not seem to have much loyalty to the firm and are ready to jump to a different job any time. We had a terrible delays with our project and some things we had to completely re-do using 3rd party services. If you can ensure Darek is 100% committed to your job - could be a good project, if not - please await problems (just like I had)...
Restora Developments LTD
Rating: 5 out of 5
Extension Builder in Streatham Vale
Hi! Here at Restora Developments we pride ourselves in having a diverse range of skills. Our bread and butter is new build homes and large developments, however we have formed a sub division aimed at end clients and home owners for smaller taks. With all in house; - carpenters - roofers - plumbers - electricians - brick layers - landscapers Etc. We take on all work from simple bathroom refurbishments to building your dream property from the ground up!
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Latest review:
Groundwork & Foundations- 18 Feb 2022
they did for me a good job and very high standard and price wise
Amritpal singh
Rating: 4.5 out of 5
Extension Builder in Streatham Vale
We are here to assist you and provide you the work you dreamt off on very reasonable prices so trust us with your house and we will do the best for you .please do understand that we have to pay to get contact details of customers so it’s important being a customer to check the portfolio before short listing a tradesman just to be sure that we won’t just be paying for nothing .
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Latest review:
Extensions- 4 Jan 2026
I hired Amrit based on positive reviews, but my experience was extremely poor. The work showed all the signs of a cowboy builder. I’m sharing this to help others avoid the stress, delays, and financial risk I went through. 1: No Respect for Contract or Deadlines Contract deadline was 15th September, which he completely missed. Despite delays, he demanded money almost daily. When I referred him to the payment and work schedule he signed, his response was: “I didn’t read it, I just signed it.” 2: Dangerous and Unprofessional Working Practices Brought in unqualified workers, many of whom could not speak basic English. He ignored safety standards throughout the project and wanted to use the same unqualified workers for gas work, which is extremely dangerous. When I objected, his response was: “Don’t worry, you will get a new house if it blows up as you have insurance.” 3: Work failed multiple building control inspections. He eventually refused to cooperate with the building inspector.
Rosa Construction
No reviews yet
Extension Builder in Streatham Vale
From internal renovations that breathe new life into your space to building extensions that expand possibilities, and loft conversions that elevate residential and commercial structures—we have the experience and skill to handle it all.
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BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Streatham Vale
Hello, We are Build Safe ltd-professional Construction Company 20 years of experience. We are proud members of Federation of Master Builders! Providing a wide range of services: Design, planning, Structural calculations, all aspects of Building works- New builds , Extensions, Loft conversions, kitchen and bathroom fitting, Window installation,refurbishments, electrical, plumbing etc. 10 years warranty and, 1m public, 5m employers liability and 1 million indemnity insurance. Please get in contact for a free quote. Thank you! Build Safe ltd
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Latest review:
Very professional. We had quite a lot of work done. It was done in time as promised, and with great attention to detail and quality. Very happy with the results. Highly recommended.
Ionut
Rating: 5 out of 5
Extension Builder in Streatham Vale
Hello, I'm Ionut handyman, I also do tile and floor work, as well as paving and driveway work.
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Latest review:
Landscaping- 7 May 2026
“We recently had our landscaping redone along with new turf installation, and the results were excellent. The team was professional, punctual, and paid great attention to detail from start to finish. They completely transformed the garden, leaving everything neat, tidy, and looking amazing. The new turf was laid perfectly and has already made such a difference to the overall appearance of the space. Communication throughout the project was clear and friendly, and the workmanship was top quality. Highly recommend to anyone looking for reliable and skilled landscapers.”
Mama jones industries
No reviews yet
Extension Builder in Streatham Vale
We’re a reliable, full-service construction company built on quality workmanship, honesty, and pride in every job we deliver. From start to finish, we handle it all — with a particular specialism in loft conversions, bathroom installations, plumbing work, and complete home improvements. What sets us apart is our people. Our team of experienced, skilled, and genuinely friendly tradesmen and women bring not only technical expertise, but professionalism, charisma, and respect into every home we work in. We believe great results come from clear communication, attention to detail, and doing things properly — no shortcuts. We’re known for being on time, transparent, and fair with our quotes, so there are no surprises along the way. Every project is approached with care and precision, ensuring the final result meets — and often exceeds — our clients’ expectations. Whether it’s transforming unused space into a beautiful loft, creating a modern bathroom, or taking care of essential plumbing work, we treat every job as if it were our own home. Your vision matters, and we’re committed to delivering results to your perfection.
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O G Electrical
Rating: 5 out of 5
Extension Builder in Streatham Vale
O G electrical is based in Belvedere and Part P registered with Napit and the Electric safety register. All electrical work undertaken, with 25 years knowledge and experience. Re wires , fuseboards , under floor heating , Cctv , lighting , fire alarms , garden and drive lights,commercial fit outs, 3 phase, extract fans all Electrical installs carried out. Installations to new build houses/apartments throughout London and Kent Inspection and testing Eicrs All work guaranteed.
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Latest review:
Electrical- 1 Dec 2020
Olly was cheerful even though confronted with an ancient wiring system and a difficult problem. He came back for a second day and sorted it. There was a callback which he sorted quickly and without complaint
Hys Contractors
Rating: 5 out of 5
Extension Builder in Streatham Vale
We are a very experienced company with over 25 years in the building industry. We undertake all building works from refurbishment, extensions, painting and decorating, tiling, plastering, electrics and plumbing. We operate all around London.
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Latest review:
Restoration & Refurbishment- 14 Mar 2022
Albert and his colleague were both very friendly, they completed the work within the time scale they said they would and to a high standard. I am very pleased with their work and will be using them again!
AXM Construction (London) Ltd
Rating: 5 out of 5
Extension Builder in Streatham Vale
Hello We are a team which we’re happy to help make your work easy and nicely done. Our first priority is the Client. We try our best to get the job done in the right way, and soon as possible.
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Latest review:
Carpentry- 18 Dec 2024
Excellent work. Finished the job on time. Tidy and neat finishing and reasonably priced.
JR OP LIMITED
No reviews yet
Extension Builder in Streatham Vale
We specialise in high-quality home improvements, with a strong focus on landscaping, extensions, and loft conversions, offering a complete design and build service from start to finish. Whether you’re looking to transform your outdoor space, expand your living area, or unlock the potential in your loft, we provide tailored solutions designed around your needs. From initial concepts and planning through to construction and final finishes, we pride ourselves on clear communication, reliable project management, and attention to detail. Our goal is to create practical, beautifully finished spaces that add real value to your home.
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vms dynamic construction limited
No reviews yet
Extension Builder in Streatham Vale
We do Loft conversion, kitchen extensions ,full house electrical work and plumbing work, House renovation, bathrooms, driveway work, CCTV installation,
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GM DESIGN & BUILD
No reviews yet
Extension Builder in Streatham Vale
GM Design & Build is an independent architectural practice offering tailored design services with a focus on residential projects. I provide high-quality, cost-effective architectural solutions for homeowners and small businesses, with expertise across a range of property types, from new builds to commercial spaces. As a sole practitioner, I offer a personal, hands-on approach to every project, ensuring your ideas and needs are fully understood and translated into thoughtful, practical designs. My services include everything from planning and building regulation drawings to the planning application process, guiding you smoothly from concept to completion. Core services include: -Single & Double Storey Extensions -Loft Conversions -Interior Remodelling -New Build Design -Small Commercial Projects -Garage Conversions -Outbuildings I also provide additional services such as party wall advice, tender packages, and procurement. For those who prefer a comprehensive solution, I ensure high standards and a streamlined experience from start to finish. If you're ready to bring your vision to life, get in touch for a discussion or consultation.
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Top rated Extension Builders

Our Extension Builders in Streatham Vale, are rated 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 Streatham Vale?

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

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

What are the hourly rates of extension builders in Streatham Vale?

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

Find extension builders in Streatham Vale with MyBuilder

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

Step 2: Compare different extension builders in Streatham Vale

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

Step 3: Hire Streatham Vale extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Streatham Vale, 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 Vale extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Streatham Vale extension builder before hiring?

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

An extension builder in Streatham Vale 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 Vale 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 Vale?

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 Vale 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 Vale 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 Vale

Can an extension builder in Streatham Vale help with planning permission?

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

Many Streatham Vale 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 Vale help with materials and finishes?

Yes, most extension builders in Streatham Vale 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.