Extension Builders in Streatham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (18 reviews)

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Some of our top rated extension builders in Streatham

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MJV Extrem Construction Ltd
Rating: 5 out of 5
Extension Builder in Streatham
MJV Extrem Construction specializes in refurbishments, extensions, loft conversions, new builds and complicated structural alterations.We are ready to help with any of electrical,plumbing and Gas desigh and installations included all aspect of different heating systems and UFH systems. We also undertake smaller projects like kitchen/bathroom Installation’s ,gardening and all your property needs from A to Z. Fully insured. Free quotations
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Latest review:
Plastering- 20 Jun 2025
Rerendering, repairing and redecorating front of house. Vic and his team were excellent. Highly skilled, respectful and trustworthy. Job was completed to a very high standard at a fair price. Couldn’t be happier. Will definitely use him again and would not hesitate to recommend him to others.
A.R.Renovators
Rating: 5 out of 5
Extension Builder in Streatham
We are a family-run team made up of an experienced Architectural Technician and a skilled site manager and builder with over 20 years of experience delivering high-quality renovation services across London. Combining technical expertise with hands-on construction knowledge, we’re committed to providing reliable, professional service with attention to detail at every stage. We take pride in meeting deadlines, staying within budget, and exceeding client expectations through clear communication and quality workmanship.
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Latest review:
Conversions - General- 31 Jul 2026
Alonso was fantastic , very knowledgable . Still using him on other jobs currently
elexitech ltd
Rating: 5 out of 5
Extension Builder in Streatham
elexitech ltd is a Morden based Painter & Decorator, Bricklayer, Bathroom Fitter, Repointing Specialist, Decking Specialist, Electrician, Extension Builder, Landscaper, Handyman, Kitchen Fitter, Loft Conversion Specialist, Plasterer, Plumber, Restoration & Refurbishment Specialist, Flat Roofer & Pitched Roofer company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with bathroom fitting, bricklaying, repointing, decking, landscaping, plumbing, roofing (flat), roofing (pitched), painting & decorating, restoration & refurbishment, plastering, electrical, extensions, handyman, loft conversion & kitchen fitting, message us so we can assist you and arrange a quote.
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Latest review:
Extensions- 27 Jun 2019
Frank is extremely trustworthy, reliable and professional and cares for a job done to the highest standard. He is accommodating, flexible and excellent at communicating with his clients to find the best possible and most suitable outcome. We are very happy with the final result and will definitely use again and recommend (already have!) to anyone in need of a reliable and skilled professional. Thank you Frank (and team!)
Aldo
Rating: 5 out of 5
Extension Builder in Streatham
Hi I’m Aldo , I work as a plumber. I’ve got 4 years experience on plumbing working for a big company. Now I’m on freelance private trader. I am able to undertake any job on plumbing, first and second fix. For any emergencies I’m available 24/7.
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Latest review:
Plumbing- 2 May 2019
Aldo was prompt, helpful, and completed job competently. Price was very reasonable. Pleasant chap to deal with.
R G Property Maintenance
Rating: 4 out of 5
Extension Builder in Streatham
My name is Richard I have been in the building trade for over 20 years doing Extensions loft conversions carpentry kitchen fitting and bathroom fitting. I am reliable taking pride in the work that I carry out.
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Latest review:
Carpentry- 8 Jul 2020
Richard completed an excellent job at our school, reliable, efficient and has loads of knowledge.
Ncc maintenance ltd
Rating: 5 out of 5
Extension Builder in Streatham
We made, electricity, plumbing, landscaping, building renovation, carpenter, tiling and paving
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Latest review:
Carpentry- 13 Jun 2022
Highly skilled and excellent work.
Bono Construction
Rating: 4.9 out of 5
Extension Builder in Streatham
BONO CONSTRUCTION is a family run building and construction company based in south east. 20 years experience in business we pride ourselves in the service we offer. We have our own in house drawing office and structural engineers. BONO construction will guide you through your project from very start to finish. ********We design cafes, shops restaurant from start to finish include extractor systems electrical fire cctv and even logo printed on your plates,cups get in touch for a quote
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Latest review:
Bathroom Fitting- 25 Sep 2018
Mustafa is excellent! He did a fantastic job on our bathroom - so much so, that when we decided on a more extensive construction project, he was our first call. He is communicative, friendly, and hardworking. All his team are sweet guys and they did a great job for a great price. I cannot recommend him enough.
Areebahmad
Rating: 4 out of 5
Extension Builder in Streatham
Professional & Trustworthy We are a full-service handyman company providing reliable, high-quality home repair and maintenance solutions. From minor fixes to larger improvement projects, our skilled professionals handle every job with precision, honesty, and care. We pride ourselves on clear communication, fair pricing, and getting the job done right the first time. Friendly & Local Your go-to local handyman for all the little (and not-so-little) things around your home. Whether it’s repairs, installations, or general maintenance, we show up on time, treat your home with respect, and leave things better than we found them. No job is too small—just honest work you can count on. Modern & Marketing-Focused We make home repairs simple. Our handyman services are designed to save you time, stress, and guesswork. Backed by experience and attention to detail, we deliver dependable results for homeowners and small businesses who want quality work without the hassle. Short & Punchy (Great for a website header) Reliable handyman services for repairs, maintenance, and home improvements—done right, on time, and at a fair price.
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Latest review:
Following a leak and subsequent water damage, the bathroom floor needed extensive repair due to damage caused to the joists, tile grouting and floorboards. Consequently, the Joists and flooring needed removing and then replacing which included cutting out the rotten timber and rebuilding the floor. It was a messy job but Areeb and his team worked through meticulously with great attention to detail - making sure that the correct floorboards and water tight materials were used to ensure a strong, stable and secure floor that could withstand the weight of the tiles as well as daily use. Areeb and his team are reliable, professional and extremely hardworking. They are respectful of the client and their home leaving all areas clean before leaving. Communication was excellent at every stage of the process and they even checked if I was happy with the work at different stages. They come highly recommended and I would not hesitate to use them again. They are now 'my go to' builders and I have in fact, already had another project carried out by then which has also gone seamlessly well.
Shemeck Builder
Rating: 5 out of 5
Extension Builder in Streatham
We are a small team working in building industry for many years. We are experienced in all aspects of building like: Kitchen fitting, bathroom fitting, carpentry, tiling, plastering, painting and much more. Any project, any idea we can help you and you will be happy.
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Latest review:
Bathroom Fitting- 26 Jun 2022
Excellent recent bathroom project delivered by Robert and Shemeck. Everything delivered on schedule. Very tidy and considerate of working in a family home. Competitive rate, great attention to detail, completely trustworthy. I'd recommend anyone to speak to them about your project.
edildue
Rating: 5 out of 5
Extension Builder in Streatham
Groundworks, Fromwork, steel fixing, casting , general builders, carpentery , tiles , concrete , wood floor
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Latest review:
Handyman- 6 Nov 2023
Michele and his team did an excellent job of improving the external area of our property. Very professional communication, job was done to a high standard at a fair price. Done in a very timely manner and would highly recommend.
DC Brickwork
Rating: 5 out of 5
Extension Builder in Streatham
Dear Customers I am honest trustworthy reliable and hardworking and I have over 25 years experience in the industry.
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Latest review:
Bricklaying- 29 Jun 2017
I would recommend Damian. Did a good job, good communication and was on site when he said he would be. Polite and friendly. I would be happy to use again.
Sorin Marian
Rating: 5 out of 5
Extension Builder in Streatham
I have been working in the construction industry for over 16 years, gaining experience across a wide variety of projects. My work has ranged from bathroom and kitchen installations, through to full refurbishments, extensions, and even new builds such as small blocks of flats and luxury multi-million-pound houses built from the ground up. I am based in Sutton, Surrey, and take on projects across the local area as well as surrounding parts of London and the South East. My skills cover all aspects of building and renovation, including structural work, high-quality finishes, and complete project management. Over the years I’ve built a reputation for reliability, problem-solving, and delivering projects to a high standard. Clients choose me because I treat every job with the same attention to detail, whether it’s a small home improvement or a large new build. My philosophy is simple: to provide honest, dependable work that adds long-lasting value to every property.
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Latest review:
Driveways (Paved & Loose)- 6 Dec 2025
So happy with drive sorin done the best job so happy with drive so professional and cleaned everything after he finished i will definitely be hiring him again A ********
TA Bhatti constructions Ltd
Rating: 5 out of 5
Extension Builder in Streatham
Right now we r doing flats,extensions, loft conversion, refurbishment, bathroom & toilet, kitchen electric & plumbing , rendering, decorating, driveways work undertaken
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Latest review:
TA Bhatti constructions did an excellent job in renovating my house, it was a 6 months long job where they pulled apart all the internal parts of the house and rebuilt it all. They did an excellent job in putting a new Kitchen, 2 bathrooms, new wiring, new plumbing and everything else. The thing I liked most was their finishing which was next to none. I will happily recommend TA Bhatti constructions to anyone looking to renovate their house or looking to do extensions or Loft conversion.
Builder
Rating: 4.7 out of 5
Extension Builder in Streatham
Hi we are specialize in all type of plastering and decorating thanks
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Latest review:
Painting & Decorating- 10 Aug 2026
not happy at all
Al Costa Construction LTD
Rating: 5 out of 5
Extension Builder in Streatham
WHO ARE WE? With over 25 YEARS OF EXPERIENCE with AL Costa Construction, you will find the best services provided by professionals that understand and have the knowledge of the process of construction and renovation that best suits your project. It does not matter how big is your project, we work with excellence and dedication to reach perfect results. We try to merge trends with innovating materials and processes in each project, in order to achieve high standards results in every project. OUR TEAM Our team is formed by professionals that are able to perform your project with quality, so your dream project can get out of paper and become a dream come true. Our professionals are always concern with the client’s wishes and try to combine it with them expertise, in order to achieve a final result above expectations, functional and with premium quality. OUR GOAL We try to come up with the best solutions in construction and renovation to provide ours clients an excellent experience. Our main goal is to offer services that match ours clients needs, with an excellent quality.
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Latest review:
Hard Flooring- 11 Dec 2018
Did my 3 bedroom house wooden flooring for full house. Had a wonderful experience with Alex, great job and completed on time with good standards. He gave some good suggestions which improved the quality and neatness of work. highly recommending will work with him again.
alpha green construction
Rating: 5 out of 5
Extension Builder in Streatham
I have 25 years experience in the trade.specialise in innovation and reliability. Trade built company generally around masonry , roofing and all other structural undertakings. We specialise in loft conversions and house extensions , masonry and landscape gardening. We also provide design and build schemes for the above topics.
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Latest review:
Extensions- 14 May 2019
We love Berry, he has followed our project from the beginning to the end and he has been there all the steps of the way. He listened to our ideas and enriched them with more of his adding his special attention to details skills. For every problem, we had along the way he talked to us making sure we were happy with alternative solutions. Plus he is able to create a friendly working environment which makes the invasion of your house less intrusive, he has been very respectful of our space. We can genuinely say that he has gone beyond our expectations, and will be very happy to do future works with him. Luca and Nick

3.9

Top rated Extension Builders

Our Extension Builders in Streatham, are rated 3.9 out of 5 based on 18 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.