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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Marios Brickwork
No reviews yet
Extension Builder in Streatham
Expert in restoring brick and stone walls with precise, durable repointing. Using the right mortar for each property, I ensure walls are weatherproof, structurally sound, and look their best. Free quotes and examples of previous work available.
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JONES CONSTRUCT LIMITED
Rating: 4.9 out of 5
Extension Builder in Streatham
Jones construct ltd is a construction company that offers our service to commercial and domestic properties. We take great pride in our projects from start to finish to create that stress free build to our clients making sure we go that extra mile. Covering from small maintenance works to loft conversions .
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Latest review:
Carpentry- 10 Apr 2026
Extremely efficient and professional. Very responsive and fairly priced.
Rayan and Kevin brickwork
Rating: 4 out of 5
Extension Builder in Streatham
We do extensions , lofts conversions , roofing . gardening, rendering.and much more we have more than 20 years experience .
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Latest review:
Bricklaying- 25 Aug 2024
AVOID. Ernie incorrectly installed my drains under my house which has caused awful smells and sewage to leak under my house causing long term damage to my foundations Three professional drainage company’s have put a camera to see a Dropped pipe from new to old house. They have identified a connection that was never appropriate. Unfortunately, Ernie after being given many opportunities does not accept any responsibility. He is not an expert at all trades so be careful. I’ve asked him to help put right by exposing the floor which has Underfloor Heating. This has now cost me tens of £000s. My fault for not using a professional team at the beginning of my project.
Simply Extensions & Lofts Ltd
No reviews yet
Extension Builder in Streatham
We're specialists in house extensions, refurbishments, and Loft conversions in South West London with the aim to deliver. Everyone that we use for finishing, is a trade. This gives you a very high-quality finish that is seldom achieved by a 'General-trade'. They are fast, clean, and produce showroom quality. These individual professionals are more than just people we work with, they are people we know.
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Denis
No reviews yet
Extension Builder in Streatham
Hi. My name is Denis. I worked as foreman over 10 years, building extensions, loft conversions,etc. I am multiskiled tradesmen ,I do work that involves ground work, bricklaying,roofing, rendering, plastering, screeding and much more. I can provide fotos of the work I have done but also the contact number of my previous boss that can confirm everything I said. I have car also the tools needed for the job. Please do not hesitate to contact me as I am ready to start at any time. Thank you 😊
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Panacea Q Construction
No reviews yet
Extension Builder in Streatham
We are a general contractor and construction company
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London Eco Build Ltd
New on MyBuilder
Extension Builder in Streatham
Welcome to “London Eco Build Ltd”, & we’re proud to provide a collaborative approach with clients every step of the way to achieve their objectives… Fully committed to providing detail-focused strategies tailored for efficiency, while aligning with London’s demanding needs. (Building London's Future); At London Eco Build LTD, we combine advanced technology products with expert craftsmanship to deliver sustainable solutions to residential and retail spaces across the Capital. (Residential Builds); From planning to finish, we craft homes with sustainable materials. (Retail Projects); Efficient, stylish retail spaces built with cutting-edge technology. (Project Management); Careful project management ensures timely, reliable delivery every time. (CERTIFICATION); Whether you’re a landlord, a business, a homeowner or a tenant, we provide a comprehensive certification service for your property requirements at a competitive rate. (Our Story); Every talent compiling our collective team has a proven track record of experience & expertise in their specialised field, resulting in seamless execution & ensuring projects meet deadlines. We hope that the above is satisfactory & anticipate your project enquiry.
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Alexi Construction Ltd
Rating: 5 out of 5
Extension Builder in Streatham
At Alexi Construction, we take immense pride in being your trusted partner for a wide array of high-quality property solutions across the UK. Our commitment to delivering perfection to your proposition and exceeding all expectations is at the core of everything we do.
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Latest review:
Great work from start to finish, Suren was professional, reliable, and delivered high-quality service on time and on budget. Communication was clear throughout the works, and the final results exceeded expectations. Highly recommend Alexi construction to anyone looking for real quality work.
We are Renovation Limited
No reviews yet
Extension Builder in Streatham
We are Renovation. …The key is in our name! We are a team dedicated to high quality renovations, our experience is second to none and we ensure that we satisfy and surpass our clients’ expectations. Allow us to take the immense pressure off your shoulders and bring to life your designs and visions of your dream home. We particularly specialise in full house renovations, loft conversions and extensions. Get in touch today to start your renovation journey with us!
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Eddie&Sons
No reviews yet
Extension Builder in Streatham
23 years of experience in building trade, starting from fitting kitchens, doors, skirtings, walls, ceilings, extensions, lofts, gardening+fences etc etc.
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DMJ Group
No reviews yet
Extension Builder in Streatham
DMJ Group is a Surveying Firm that provides Design & Build services to Clients from extensions, loft conversions through to new build design and build sustainable constructions.
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Waven.costruction and development ltd
Rating: 5 out of 5
Extension Builder in Streatham
20 years experience in all aspects of plastering. Complete refurbishments, extensions and loft conversions.
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Latest review:
Plastering- 21 Jul 2016
Very impressed with John’s work and would highly recommend him. John’s work was very good quality, he recommended practical solutions to problems and had a very positive can do attitude fixing up areas outside of the job I hired him for free of charge. Very happy
AAD building services ltd
No reviews yet
Extension Builder in Streatham
I am builder. I have 20 years experience in construction working.
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SHIVAY DEVELOPMENTS LTD
Rating: 5 out of 5
Extension Builder in Streatham
From Concepts to Creations, Shivay Developments Ltd has combined experience of over 15 years in Construction trade. Our team consist Expert Tradesmen and Experienced Project Managers with a single point of responsibility and accountability throughout the construction process.
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Latest review:
Extensions- 3 Jun 2020
Mohit and his team at Shivay Developments completed extensive improvement work in my house (rear extension, internal structural work, kitchen, toilet, boiler installation, plumbing and electricals, flooring & finishing). The end result exceeded all my expectations in terms of cost, time and quality making me a very happy man. Sharing some pictures would have done proper justice but unfortunately there doesn’t seem to be a way to upload pictures with the feedback. In spite of living inside the property whilst the works were ongoing, we hardly felt any impact owing to how well Mohit had planned the whole thing and the advance notices he used to give us from time to time. All the guys too were very considerate when it came to minimizing the inconvenience all the dust and noise could cause to us and also the neighbours. I also liked the fact that nothing was rushed and a great deal was given to attention for details and the result was just splendid. I guess at the end of the day, it’s what you see that matters most. However amongst everything that hit the right notes for me during the entire process, it was the confidence that I can trust this team to do the job right stood out. It was a bunch of warm and friendly people who had direction and knew what they were doing. A special mention and a big thank you to Kash and Pala to lead the work from the ground up and Mohit for taking up and managing the job and of course for the celebratory rounds of beers :) Do keep in touch
Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in Streatham
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
S.F Building & Landscapes
No reviews yet
Extension Builder in Streatham
Hello. I am Stuart of S.F Building & Landscapes. I have over ten years experience in all apspects of building, construction and landscaping services. I undertake nearly all aspects of the building trade. I believe in customer satisfaction a clean tidy job and take a lot of pride of the finish to every single one of my jobs.
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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.