Extension Builders in Streatham

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

Easily find verified Streatham Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Streatham.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Streatham

3370 Results

Sort by:

Timeless finishes ltd
Rating: 5 out of 5
Extension Builder in Streatham
With over 15 years in the construction industry, I have honed my expertise in managing both domestic and commercial projects. I thrive in high-pressure environments, where my skills in project management and quality assurance lead to successful, on-time project completions. I'm dedicated to sustainable practices and mentoring upcoming professionals in the field.Leading construction firm specializing in both residential and commercial projects. Managed multiple construction projects, overseeing budgets and ensuring projects were completed on time. Implemented quality control procedures that led to a 20% reduction in rework. Coordinated with subcontractors and suppliers to maintain project flow efficiently.Construction company focusing on residential buildings. Conducted site assessments and prepared reports on project feasibility. Supervised daily operations on site, ensuring adherence to safety standards. Fostered relationships with clients that resulted in repeat business
Get in touch
Latest review:
Carpentry- 30 Dec 2025
Did the skirting across the whole house and the wood paint. Did a really good job! Would recommend.
BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Streatham
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
Get in touch
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.
Reli
No reviews yet
Extension Builder in Streatham
Window fitting and painting
Get in touch
South East Renovators Ltd
No reviews yet
Extension Builder in Streatham
At South East Renovators - Your Vision, Our Expertise! We're more than just tradespeople; we're dream builders. With a passion for precision and an unwavering commitment to client satisfaction, we turn your ideas into stunning realities. Explore our range of services, from roofing to extensions and interior magic. Let's transform your dreams into tangible results.
Get in touch
Local Bricky
Rating: 5 out of 5
Extension Builder in Streatham
I have over 10 years experience in the construction industry. My main trade is brick laying but I do undertake different types of work depending on the requirements. I'm a hard working and trustworthy builder and work to perfection and also have a very trained team off carpenters,plumber,electrician plasterer and decorators we been doing many project together and we have achieved our targets with success
Get in touch
Latest review:
Extensions- 17 Jul 2020
Orgert Myrta and his highly skilled team did an exceptional job renovating our Victorian terrace house in under 8 weeks. On meeting Orgert, his warm, friendly and professional manner was reassuring. I immediately thought he was someone I could work with. His initial assessment of our house, he advised on best possible solutions to achieve our aims within budget. He invited me to visit the homes of his recent previous clients & obtain their feedback, which I did. Visiting two clients, they both spoke highly of Orgert & his team, sharing their positive experience and how Orgert has since completed work on their neighbours homes & family members homes too. Judging by the quality of work completed in both client's properties, I knew Orgert was the right builder for me. Responsive & prompt throughout, good communication, providing weekly status updates, even advising on where to source great deals on second fitting items saving us money. To say we are pleased with how well the project has gone & level of workmanship is an understatement! Without hesitation we highly recommend Orgert & his team, who since finishing our house are now doing work on my relatives house. Orgert & his team completed in our home: - Rewiring & new plumbing - Plastering walls & ceiling - Replace old ceilings - Painting & Decorating - Painted exterior front & back - Replaced & repointed brickwork - Installed new kitchen & bathroom - New flooring throughout
Dawoo Design Ltd
No reviews yet
Extension Builder in Streatham
From design to built. Domestic or commercial. We make your ideas come true.
Get in touch
Jas & Savoy Construction ltd
Rating: 5 out of 5
Extension Builder in Streatham
Building work,rear&side extention,loft conversion,kitchen,bath room,drive way, shed all type of work undertaken
Get in touch
Latest review:
Extensions- 27 Jul 2016
I am so overwhelmed with this company after having bad luck with another company I would really recommend Jas & Savoy to everyone I have had a single storey extension- They are very respectable 1000%- The work they do is highly professional- Also at a very good reasonable price- I did not even have to watch them- They stay in contact with the building control, I am lost for words... They follow the drawings, and do exactly what you want... Beautiful work very highly recommended.... Thank you so much for your hard work Jas & Savoy Construction ltd
kensington Construction & Renovation Ltd
No reviews yet
Extension Builder in Streatham
Welcome to Kensington Construction & Renovation Ltd, where we bring new life to old spaces and craft new ones with precision and care. Our expertise goes beyond refurbishments and restorations. We are adept at bespoke furniture design,build and installs, demolition, decorating and all other building trades. When it comes to interior renovations, we leave no stone unturned. From luxury bathrooms to kitchens, our team can transform your property and we approach each project with the care and dedication it deserves. Bespoke carpentry is where our passion meets precision. Our master craftsmen create custom pieces that elevate interiors, from stunning cabinetry to intricate bespoke items. Every detail is meticulously crafted to reflect the unique personality and style of our clients and their ideas. In addition to residential services, we offer comprehensive commercial fit-out solutions. Whether it's creating inspiring workspaces or welcoming retail environments, we tailor our services to meet the specific needs and objectives of each client, delivering results that exceed expectations. At KCR, we pride ourselves on our commitment to quality, craftsmanship, and client satisfaction. From concept to completion, we are dedicated to delivering excellence in every project we undertake. Let us turn your vision into reality and transform your space into something extraordinary. www.kcr.ltd
Get in touch
Leon building contractors limited
Rating: 5 out of 5
Extension Builder in Streatham
Hi.Welcome to our profile. We are well established building company working in London and surrounding areas. We are specialists in loft conversion and extension. All kind of building works undertaken.also happy to provide photographs and references of our previous happy customers.We offer free quotes.Fully insured,skilled trades men. Finish projects on time limit to suits you. We are proud member of Association of Master Tradesmen and check a trade. thanks for visiting our page.
Get in touch
Latest review:
Extensions- 25 Apr 2025
we recently had the pleasure of working with Leon building contractors limited, and i cant recommend them highly enough! They carried out a single story rear extension, an internal garage conversion and porch to the front of the house. On top of that they installed our new kitchen and toilet suite downstairs all finished to a high standard. From start to finish Vic and his team were amazing nothing was too much trouble and were always happy to do anything without a fuss. Their attention to detail was first class. It wasn't only us who was impressed but our neighbors commented how friendly, respectful and hard working they all were and have already asked for his contact details. Vic trade contacts also helped us with windows/bi-folds and quartz worktops all high quality at much cheaper prices i could find myself! Thanks again to Vic and the team for doing such a brilliant job, we have no hesitation to use again in the future!
ONIT MAINTENANCE LTD
New on MyBuilder
Extension Builder in Streatham
Onit Maintenance is a reliable, professional maintenance company serving London and the surrounding areas. We take pride in delivering high-quality workmanship, honest advice, and excellent customer service on every job, no matter the size. Our team provides a wide range of property maintenance services for homeowners, landlords, letting agents, and businesses, including plumbing repairs, electrical work, carpentry, painting & decorating, flooring, tiling, kitchen and bathroom installations, furniture assembly, TV wall mounting, door & lock repairs, gutter cleaning, fencing, general handyman services, and emergency repairs. We believe in doing the job properly the first time, keeping our work area clean and tidy, and communicating clearly throughout every project. We are fully insured and committed to providing reliable, punctual, and cost-effective solutions with transparent pricing. Whether you need a small repair or a larger property improvement project, Onit Maintenance Services is ready to help. One Company. Every Trade.
Get in touch
MMDesigns
No reviews yet
Extension Builder in Streatham
ARB/RIBA Chartered Architect with 7 years of experience in residential and educational projects from small to medium-sized. All projects have been UK based on meeting all the building regulations and other relevant standards. It's been amazing to work with private clients as well as local authorities and housing developers. Feel free to contact me if you have any questions or projects that need looking over.
Get in touch
GH Build Specialists
No reviews yet
Extension Builder in Streatham
NvQ level 6 construction manager with 20 years construction experience.
Get in touch
Titan construct
No reviews yet
Extension Builder in Streatham
Over 8 years of experience doing commercial and residential buildings in London. Started by my own to build a business to deliver quality work at the right price on time.
Get in touch
Actonstruction
Rating: 4.1 out of 5
Extension Builder in Streatham
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.
Get in touch
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)...
SSS Brothers Limited
Rating: 5 out of 5
Extension Builder in Streatham
At SSS Brothers we value our customers and work very hard to maintain their trust.With 15 years of experience,You can be assured that we will always provide quality workmanship, professional,courteous and timely service. Our prices are competitive, and our work is guaranteed. We will not be satisfied until you are! What We love most about renovating homes is working with our clients to create something spectacular.Every job comes with new challenges and opportunities to build something special.
Get in touch
Latest review:
Extensions- 26 Aug 2021
SSS BROTHER, They worked incredibly hard to transform our house in a timely and efficient manner, all whilst being responsive to our concerns and preferences. The SSS BROTHER did a great job extending our kitchen and backroom to create a beautiful space that we love hosting family and friends in. The job was completed to a high standard and with good communication. Throughout the work, the workers were calm and knowledgeable and - importantly for us - helpful and offered their opinion of how the extension should be built.
Pqs building ltd
No reviews yet
Extension Builder in Streatham
One call does it all! We are a building and maintenance company we mainly do full refurbishments and extensions. Our maintenance team cover everything from changing lights to painting.
Get in touch

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.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.