Extension Builders in Brentford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in Brentford

3316 Results

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Executive Constructions Ltd
No reviews yet
Extension Builder in Brentford
Hai , We are from Executive construction, we will help you to make New build homes , Roofing , Foundations , Landscaping, Rennovations and Driveways installer . Moreover , we will share with you new trending ideas and will work with full experience
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Hannaby & Hannaby
No reviews yet
Extension Builder in Brentford
We are experienced loft converters and cover all aspects of building including bathroom and kitchen fitting . No jobs are too small and quotes are free
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Singh j construction Ltd
No reviews yet
Extension Builder in Brentford
Building work Loft conversion Rear extension Roofing pitch/ fibreglass like all the buildings work
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Langley Groundwork Ltd
Rating: 5 out of 5
Extension Builder in Brentford
Welcome to Langley Groundworks Ltd I’m Rich Langley, founder of Langley Groundworks Ltd, and we’re proud to offer a reliable, experienced service in all aspects of groundworks, foundations, drainage, demolition, and site clearance. With years of hands-on expertise and a strong reputation for quality, we ensure every project—big or small—is completed safely, efficiently, and to the highest standards. In addition to our core groundworks services, we also manage full property refurbishments and alterations, offering a complete start-to-finish solution tailored to your needs. Whether you’re preparing a new build site, upgrading existing infrastructure, or transforming a property, Langley Groundworks Ltd brings the right skills, equipment, and attitude to get the job done properly. We’re here to make the process as straightforward and stress-free as possible—reliable, professional, and ready to deliver.
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Latest review:
Groundwork & Foundations- 3 Aug 2025
Richard was incredible- excellent at his craft, very precise and very hard working. He knows his concrete! We couldn’t recommend him enough!
Golden kye uk construction
No reviews yet
Extension Builder in Brentford
A construction company, reconstruction, repair and maintenance
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GDM BUILDING SOLUTIONS
Rating: 5 out of 5
Extension Builder in Brentford
With forty years of construction experience we are qualified tradespeople Our range of construction projects include kitchens & bathrooms, refurbishments, loft conversions and extensions. We project manage our work and believe that good clear communication with our clients is key to a successful project- from our first consultation visit, the quotation and build process. We want our clients to be delighted with both the quality of our work, and the manner in which it is carried out.
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Latest review:
Extensions- 13 Jan 2019
George was excellent throughout - would highly recommend. Although I did not hire George to complete the whole job (as someone in my family is a bricklayer) he was instrumental in completing the build. A few points to demonstrate: - Fair and transparent quote (which was stuck to); - Flexible throughout delays caused by me (planning, etc.); - Supportive (advice on what he would do if he was running whole job); - Professional (including team). I will use him again.
Thiara
No reviews yet
Extension Builder in Brentford
Be a good gud person and we do all kind of job such as loft extension door bathroom electric plumbing tiling kitchen everything
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StructurAll Ltd
No reviews yet
Extension Builder in Brentford
We started our company as an engineering consultancy. We developed over the years to provide in-house architectural services, interior design, structural design, project management and asset management capabilities. We believe in client service and support throughout the life of a project, rather than just providing a design solution. So we have gained a reputation of being a one-stop-shop amongst our clients; who include private individuals, contractors, and local authorities.
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LONDAMEXP
No reviews yet
Extension Builder in Brentford
Established by industry experts, LONDAMEXP Construction is a London based home refurbishment business. LONDAMEXP Construction combines more than a decade of experience and expertise to provide commendable refurbishment services. We have been in service since the past 15 years in the UK and NL!
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Irz construction ltd
Rating: 5 out of 5
Extension Builder in Brentford
Irz construction ltd was created 5 years ago always were recommend to costumers all around London Type of jobs we do Refurbishments Extension Loft conversation Gardening Driveways Painting decorating All projects we did are available to visit and see It in person also ask the owners about their experience with us The director has been 7 years on this industry previously managing another successful construction company
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Latest review:
Restoration & Refurbishment- 19 Nov 2019
Iljaz and his Team were brilliant! I was slightly concerned having no reviews. They found the leak, fixed it and patched up the wall in very tidy and professional manner. He did say he wouldn't be able to come today and updated me, however he made time to come in-between his day to sort out my issue. Not many true trades people like this and very honest and stuck to his word. I would definitely recommend him and would not hesitate to use his team again. Thank Iljaz!
Jaches construction
Rating: 5 out of 5
Extension Builder in Brentford
Architectural Engineering drawings. Construction. Ground and first floor Extensions. Loft conversions. Interior design. Painting and decoration. Boiler installations.
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Latest review:
Conversions - General- 28 Jul 2023
I had Tony in to do my ballastrade, he also ended up doing a lot more work including my driveway, have recommend him to several people and all have used him, highly recommend
ART BUILDING & SERVICES LTD
Rating: 5 out of 5
Extension Builder in Brentford
ART Building & Services is a Slough-based building company carrying out construction services, property maintenance and installation work across Berkshire and London areas. As one of a few prime building companies, our main strength is based on providing complete solution, from initial concept right through to planning applications and to the final build.
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Latest review:
Extensions- 9 Nov 2021
Artur and his team are very professional and polite. The single storey extension was built to a very good standard. The building site was always kept tidy. Artur kept us informed throughout the process. I strongly recommend using Art Building Services.
L&B Brickwork
No reviews yet
Extension Builder in Brentford
Good quality professional workman, 25 years experience in the building trade in both site work and extensions. Approachable and easy to deal with, endeavor to do work with the minimum of disruptions to clients and happy to explain anything as required. Expertise in brickwork, block-work, flint-work, specialist pointing. Any job from garden walls up to extensions and new builds, we are fully qualified and experienced in all fields.
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Hounslow west construction limited
No reviews yet
Extension Builder in Brentford
I do loft conversion,extension,kitchen.bhatrooms,fencing gardens etc
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Lan Lin
New on MyBuilder
Extension Builder in Brentford
We are a team of qualified civil engineers with more than 10 years of experience in building construction and property improvement services. Our work includes house builds, extensions, loft conversions, shed , greenhouse construction, furniture installation, repairs, and a wide range of handyman services. We are reliable, hardworking, and committed to delivering quality results for every project. Customer satisfaction, professionalism, and punctuality are always our priorities.
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JAY Executions LTD
No reviews yet
Extension Builder in Brentford
What makes us different is that we care about our clients and keep in touch with them even after finalising the project, and solve the future problems if any will exist. We are committed to delivering the highest levels of quality and service to our clients across all sectors, always embracing new ideas and methods of construction.
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4.2

Top rated Extension Builders

Our Extension Builders in Brentford, are rated 4.2 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 Brentford?

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 Brentford 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 Brentford who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Brentford extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Brentford?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Brentford 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 Brentford extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Brentford home extension project is likely to cost.

Find extension builders in Brentford with MyBuilder

Hiring the right extension builder in Brentford 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 Brentford extension builders. Once your job is live, we’ll share it with home extension builders in Brentford who can express their interest.

Step 2: Compare different extension builders in Brentford

When you start receiving interest, review profiles of local Brentford extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Brentford extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Brentford, 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.

Brentford extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Brentford extension builder before hiring?

Before hiring an extension builder in Brentford or extension building company in Brentford, 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 Brentford?

An extension builder in Brentford 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 Brentford 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 Brentford?

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 Brentford 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 Brentford 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 Brentford

Can an extension builder in Brentford help with planning permission?

Yes, many extension builders in Brentford 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 Brentford handle everything from design to construction?

Many Brentford 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 Brentford help with materials and finishes?

Yes, most extension builders in Brentford 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.