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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Fire Safety Works Limited
Rating: 5 out of 5
Extension Builder in Streatham
Lofts ,extension, Full refurbishment plastering Painting and decorating wallpaper and much more on commercial and domestic properties 12 years of experience
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Latest review:
Painting & Decorating- 4 Jul 2017
Andi and his team did a fantastic job including removal of wallpapers, skimming and repainting walls and ceilings in no time.... the team worked wonders day and night handing back the property ahead of our move in day!! Andi is easy to talk to, extremely hardworking, keeps his promise and does it all with a smile! I wish I was like that at work when my boss gives me job :) Very pleased we hired Andi
Phoenix Logis Limited
Rating: 1 out of 5
Extension Builder in Streatham
We have many years experience in the UK market in refurbishment and domestic and non domestic property alterations. This includes heavy structural alterations and house extensions and reconfigurations for very high end clients delivering in the range of Prime and Super Prime Projects for very high end clients. This getting the projects from cradle to grave making sure we meet our targets on time and budget making sure the clients are happy with the results we deliver. Our works starts with the assistance of making all the necessary paperwork for the client, ground works, internal refurb, heavy and light structural alterations, in a few words all trades in our hand for internal and full external works this including scaffolding.
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Latest review:
Restoration & Refurbishment- 1 Feb 2026
The WORST experience I have ever had with a tradesman. I would strongly advise others to stay clear. There was no schedule of works at any stage. Adrian failed to plan, failed to communicate agreed works, & did not even tell his own workforce what they were meant to be doing. There was no evidence of professional oversight or management, resulting in chaos & extreme delays. I was repeatedly misled. He stated that Building Control had been contacted & paid for; but when I contacted them directly they confirmed no application or payment had been made. He damaged my property & instructions were ignored. He was rude, aggressive & shouted at me in my own home, which I found intimidating as a woman. Neighbours also complained about his behaviour. Despite multiple extensions, the job was left unfinished with little communication. He caused significant stress & a serious loss of time & money. The matter is now being resolved through the courts. I would NOT recommend him under any circumstances
Mhhomeworkz
No reviews yet
Extension Builder in Streatham
Hi I'm matt new to my builder and recommended by a friend to hopefully using my 20+ years in the industry to help and service new my builder customers. Experience in refurbs, extensions, loft conversions,bathrooms ,kitchens, roofing ,carpentry electrics and plumbing. using all these skills to both projects manage my own projects bought from auction and for customers when needed.A keen eye for detail and design and also very meticulous work ethic with an almost OCD approach to finishing details and touches.
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Jobbs
No reviews yet
Extension Builder in Streatham
We do all different types of work, best work is interior flooring, wood, laminate, vinyl, concrete and self levelling screeds all types of interior and exterior painting, wallpapering , decorating and handyman jobs. We have been working with mainly residential properties but have also done some office dilapidations and office fitouts in commercial buildings too. Our strengths are on working with our clients to help them achieve their vision. We are a different type of builder.
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FDT Construction Services Limited
No reviews yet
Extension Builder in Streatham
Construction company specialising in home extensions, loft conversions, patios, driveways and other construction services. You name it, we are here to help!
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First Plan Design and Construction
No reviews yet
Extension Builder in Streatham
At First Plan Design and Construction we offer the highest of standards in building your home and garden from the boarder lines to the completion of all the exterior and interior fittings and fixtures to create your modern life style environment. With over 20 years of experience we are proud to put our expertise and knowledge to work in creating your building requirements. Please refer to our website for more information and get in contact with us to discuss your project. Thank you
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LDK BRICKWORK
Rating: 5 out of 5
Extension Builder in Streatham
Brickwork ,extentions, restoration, pointing , retaining walls
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Latest review:
Bricklaying- 13 Aug 2021
We agreed on a price which was satisfactory, Keaton and his team were very professional job completed , brick laying to a good standard. Very happy would recommend friends.
Onyx Interiors London Ltd
No reviews yet
Extension Builder in Streatham
Onyx Interiors London (OIL), is an all-inclusive creative platform dedicated to private clients, property investors and developers, who require a specialized or ongoing service designed to their specific needs.
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MSG DESIGN LTD
Rating: 5 out of 5
Extension Builder in Streatham
Hello I am Simion, the proud owner of Msg Design Ltd , A little about us With many happy and returning customers over the last 7 years, you can be sure of being well looked after. Our aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I work with a small team of trusted colleagues, who communicate and work together well. Our customers are accustomed the outstanding quality of projects we complete, by sourcing quality materials with experienced installers we create truly bespoke masterpieces lasting our customers many years. 2 year guarantees are included as standard on all completed work. Availability We are always contactable via phone throughout the week, including evenings and weekends. If for any reason you are unable to contact us, please send a text message or email. Thank you for taking the time to consider our company’s profile, I look forward to hearing from you. Msg Design Ltd
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Latest review:
Carpentry- 7 Jun 2026
Top carpenter. Will definitely be using again. Neat and great craftmanship.
Tp building
No reviews yet
Extension Builder in Streatham
Quality work
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Restful Abodes Ltd
No reviews yet
Extension Builder in Streatham
Construction company based in London
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London Bespoke Homes Ltd
No reviews yet
Extension Builder in Streatham
General construction company offering maintenance, repairs, extensions , lofts and refurbishment to both commercial and domestic clients.
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Croft Garage Conversions
No reviews yet
Extension Builder in Streatham
Fixed price – what’s included Planning Drawings when required undertaken by ourselves A contract that protects you All works undertaken to Building Regulations and above Always on-site until we complete your conversion High quality of work – ask and see our past Clients conversions No unnecessary deposits £5M insurance Dust Control Management What is different, is that 11 years ago we set out to specifically offer a quality service to all.
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A&R Construction services
Rating: 5 out of 5
Extension Builder in Streatham
We are a construction and development company based in West London, specialising in high-end residential refurbishments With over 15 years of experience, We take pride in our building works, so when you choose A&R Construction for your project, you will work directly with us and we’ll ensure to get you the best rates possible from suppliers, including: kitchens, tiles, wooden flooring, bi-fold doors, and sanitary ware.
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Latest review:
Roofing (Pitched)- 5 Apr 2024
I recently had the pleasure of working with the A&R company for roof repairs and transformation, and I must say, I couldn't be more impressed. Not only did they do an exceptional job with the repairs and transformation of my roof, but Amar and Jatinder went above and beyond by assisting with other minor fixes. Their friendly demeanor and professionalism made the entire process smooth and stress-free. I highly recommend A&R for their top-notch service and exemplary team members.
dream build construction
No reviews yet
Extension Builder in Streatham
Extensions,general building work,loft conversion, Garden walls, patios
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Elite plumbing and heating
Rating: 5 out of 5
Extension Builder in Streatham
We do quality work, at reasonable price
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Latest review:
Bathroom Fitting- 15 Nov 2023
Sandeep is very good and finish the job within the time he given and always answer the call. Work done better then my explanation and also clean everything after finish the work.

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.

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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.