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

3372 Results

Sort by:

M&M Building
Rating: 4.5 out of 5
Extension Builder in Streatham
Bathroom and Kitchen renovation, floor and wall tilling, wooden floor, kitchen and bathroom plumbing, painting, wood renovation
Get in touch
Latest review:
Bathroom Fitting- 19 Jan 2021
Efficient, good service. Work not carried out due to job being bigger than expected but good advice given. Will reschedule.
Cekamaintenance ltd
Rating: 5 out of 5
Extension Builder in Streatham
With over 20 years in carpentry, plumbing, kitchen and bathroom fittings, and general building maintenance work.
Get in touch
Latest review:
Carpentry- 2 Aug 2025
Excellent service from start to finish, tradesman as they should be!
Bricklayer
New on MyBuilder
Extension Builder in Streatham
Hi, my name is Alexandru. I am an experienced bricklayer with over 8 years of experience in the construction industry. I have worked as a supervisor for several established companies, including Daniol Brickwork Ltd, Mason Brickwork Ltd and Mercon Brickwork Ltd. I have now decided to start working independently and take on my own projects. I am based in the Hounslow, London area and I am available for both large and small projects. I take pride in delivering high-quality workmanship, working professionally and completing projects to a high standard. If you are looking for an experienced bricklayer or a reliable team for your project, please feel free to contact me. Thank you, Alexandru
Get in touch
Innovation Construction Design & Build Ltd
Rating: 5 out of 5
Extension Builder in Streatham
Innovation Construction Design & Build are a reliable & professional business dedicated to designs and finishes of the highest quality, tailored personally for the customer. We offer a friendly, methodical, personal and tidy service. Client care, satisfaction, reliability and being trustworthy is our company ethos and we ensure our company adheres to these core values as our basis for each project we are working on from small domestic projects to large commercial contracts
Get in touch
Latest review:
Extensions- 5 Oct 2020
Billy, Darren & the team have just finished the single side and rear extension & refurb works on my house, and they've done a brilliant job! From the start, quotations we're received promptly and competitively priced. Communication for commencement of works (during COVID-19) was always going to be uncertain but, Billy dealt with this really well and scheduled the work in as soon as was achievable. From the first day on site it was clear the team have worked with each other for years and are willing to put the extra time in to get the build done quickly, but correctly. Communication throughout build was processed well and the guys are on hand to respond to queries and questions at all times. We had a delay in the project which was unforeseen, but we sat down and came to an agreement and the extra work was carried out quickly and the project was wrapped up in really good time. I wouldn't hesitate in recommending Innovation for any building or decoration work to friends and family as the end result of our place is stunning! Special shout out to Jordan, Fog, Florin (wood work wizard) & Joy for their hard work throughout. Thank you Innovation!
Albjon Demiri
Rating: 5 out of 5
Extension Builder in Streatham
Hi, I’m Albion, and I provide high-quality flooring, kitchen fitting, fencing, decking and bathroom fitting services. I specialise in all types of flooring, including laminate, hardwood and wood flooring, with a focus on high-quality workmanship and attention to detail. Whether you’re looking to update your flooring, renovate your kitchen or bathroom, or improve your outdoor space with new fencing or decking, I’m here to help. I take pride in delivering reliable, professional work and making sure every job is completed to a high standard.
Get in touch
Latest review:
Hard Flooring- 16 Sep 2026
Excellent parquet work, highly recommend I hired Albjdon and his collegue to lay parquet on our first and second floors, and we couldn't be happier. The quality is excellent. They also fixed a poor job left by a previous builder, which made a big difference. They take their work seriously. They showed up on time every day (8am sharp!), were clearly motivated, and worked very efficiently. The second floor (27 m²) was prepped and finished in just 2 days. On top of that, their price was very fair and honest. It's rare to find tradespeople who are quick, careful, and reasonably priced all at once. Highly recommend, no need to look further. We're already planning to hire them again for our bathroom renovation.
Mikhail
No reviews yet
Extension Builder in Streatham
Hi , I’m a professional bricklayer with big experience, can do any type of projects
Get in touch
Sapphire Renovations
No reviews yet
Extension Builder in Streatham
Our company was first established in 2014 but we have a vast amount of knowledge and a great deal of experience in the Building trade. We also build and manage our own portfolioof high-end rental estates in London. We have a friendly team of professional and are highly recommended for our high standard of work. You will find our company provides 100% satisfaction to both residential and commercial customers. Our team of professionals are well trained and fully equipped to handle any size job. Our company is London based, so naturally most of the clients we work with come from London. However, we still deal with customers in a number of surrey areas just outside of London and can accommodate going further.
Get in touch
fd2build
No reviews yet
Extension Builder in Streatham
We provide Bricklaying that is High-Quality and Competitively Priced All types of brick and block work are undertaken. New builds, Extension, General Brickwork. Full supply and fix, Labour and mortar, Labour only. Please do not hesitate to contact me if you have any questions.
Get in touch
Paul Thorn and Associates Ltd
No reviews yet
Extension Builder in Streatham
Hi my names Paul Thorn,my Company name is Paul Thorn and associates Ltd we are based in Warlingham Surrey, we can carry out the complete project .from a site visit to arrange an architect to the finished job .we cover extension ,lofts, kitchen bathroom ,wet rooms , we can help you to get your ideas into reality
Get in touch
Trueframe Digital Ltd
No reviews yet
Extension Builder in Streatham
We provide reliable, high-quality building and renovation services, specialising in extensions and residential improvement projects. Our experienced team takes pride in delivering excellent workmanship, clear communication and a professional service from start to finish. We work closely with every customer to understand their needs and complete each project to a high standard, with reliability and attention to detail at the heart of everything we do.
Get in touch
Amazing constructions limited
Rating: 5 out of 5
Extension Builder in Streatham
we are specialised-Loft conversion, Extension, Brick work, Plumbing, Electric, Roofing, Bathroom, Tiling, kitchen, Flooring, Paint, and have experience of 15 years.
Get in touch
Latest review:
Extensions- 10 May 2021
Very Professional and diligent service, even though was hard to get materials because the job was done at the peak of the pandemic, still they managed to sort things out. The job was so nicely done that all the tenant who viewed the house wanted to rent it. I have even given them another job would certainly recommend.
MN Building Solutions
No reviews yet
Extension Builder in Streatham
We are company with over 15 years of experience in construction industry. We provide exceptional services and high-end residential refurbishment. Our qualified team undertake projects around London. The type of work we undertake includes: - Extensions - Loft conversions - Plumbing and Electrical Services - Kitchen and Bathroom refurbishment - Carpentry - Painting and Decorating
Get in touch
Michael
No reviews yet
Extension Builder in Streatham
My name is michael and I specialize in bathrooms fitting and kitchen fitting.
Get in touch
Sterling Developments Group Ltd
No reviews yet
Extension Builder in Streatham
provides professional property maintenance, repairs, renovations and building services across London. We specialise in plastering and skimming, delivering smooth, high-quality finishes for walls and ceilings. We also provide painting & decorating, general property repairs, carpentry, flooring, tiling, kitchen and bathroom refurbishments, as well as all types of day-to-day maintenance work. Alongside smaller jobs, we undertake house extensions, loft conversions, structural alterations, garden room construction and full property refurbishments, working to a high standard from start to finish. Whether you need a minor repair, a single room redecorated or a complete renovation, no job is too big or too small. We pride ourselves on quality workmanship, attention to detail, honest pricing and clear communication, ensuring every project is completed to the highest standard and every customer is completely satisfied.
Get in touch
Curly Sister Limited
Rating: 5 out of 5
Extension Builder in Streatham
Architectural, Refurbishment, kitchen installation, bathroom installation, wardrobe installation, carpentry, electrical, plumbing, landscaping, ongoing maintenance
Get in touch
Latest review:
Handyman- 4 Jun 2021
Hired FineUnDandy Developments to get garden shed repositioned and they did an excellent job..reasonable quote and work promptly carried out..no fuss..overall a very positive experience.
Zahid
No reviews yet
Extension Builder in Streatham
Plastering
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.