Extension Builders in Brentford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

Easily find verified Brentford Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Brentford.

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 Brentford

3469 Results

Sort by:

BUILDING ANDREW & GREG LTD
Rating: 5 out of 5
Extension Builder in Brentford
Welcome to our profile, we are a company specializing in all kinds of renovation and construction works, all the works shown in the photos are made by us, we are diligent and open to all kinds of innovative ideas of our clients, in our opinion there are no impossible things to do, you have to Just think and take action, all the best A&G
Get in touch
Latest review:
Bathroom Fitting- 2 Mar 2021
Greg and Andrew are nice guys and got the job completed to a good standard.
Platinum Star Constructions
No reviews yet
Extension Builder in Brentford
Here at Platinum Star Constructions our goal is to build and perfect your dream home to your specifications carrying out any work you desire from building extension, renovations, driveway paving, property maintenance and remodelling inside and out.
Get in touch
Adv construction group
No reviews yet
Extension Builder in Brentford
Hello, I’m Detion. I have a building team with 20 years’ hands-on experience with building works and renovations across London and the surrounding area. I manage full installations from site survey to fitting. I have a highly experienced team all with 25 years experience. I’m tidy, punctual, and communicate clearly with clients throughout the project. I offer competitive quotes, reliable scheduling, and quality workmanship, happy to provide photos of past projects and client references on request.
Get in touch
MMC Mesi’s Maintenance LTD
Rating: 5 out of 5
Extension Builder in Brentford
Renovating houses extensions quarters decorating bathrooms instalment kitchen instalment
Get in touch
Latest review:
Bathroom Fitting- 5 Apr 2022
A good experience, a quality job at a competitive price
Pan Capital Building and Maintenance Ltd
No reviews yet
Extension Builder in Brentford
We have been trading since 2015 and have a wealth of experience in: redevelopment, refurbishment, new build, demolition, steel frame structures and much more.
Get in touch
BEAM Construction Ltd
No reviews yet
Extension Builder in Brentford
Established building company branching out to domestic housing and small businesses alongside large commercial properties. We have worked on major projects within the aviation and public sector and now building a small works team to give a fair and competitive service. Most of our trades are timed served with over 30 years + in their respective trades.
Get in touch
London Home Improvements LTD
No reviews yet
Extension Builder in Brentford
With over 15 years experience on the trade and with on going projects to express the quality of work we carrying on every single project with a very friendly and respectful team we are specialist in the following: New Build, Extension, Loft Conversion, House Renovation
Get in touch
iko 16 ltd
No reviews yet
Extension Builder in Brentford
IKO 16 ltd is a general contracting company specializing in residential renovations and additions. We are a full-service company dedicated to quality construction and client satisfaction. Our goal is to provide our clients with a high-quality finished product and a positive remodeling experience.
Get in touch
Bicaku construction limited
Rating: 5 out of 5
Extension Builder in Brentford
Hi my name it's andi: I bean as a general builder for over 6 years I bean working for big company and finally I'm starting my one . I like to give a good service and a good finish on every single job like it is my one house .
Get in touch
Latest review:
Painting & Decorating- 4 May 2021
On visiting to quote Andi impressed us with his professionalism so he was awarded the job over two other applicants. The job was completed on time and to an agreed specification. He was not the least expensive quote but we are happy that we chose him. If I had any further work I would happily employ him again.
Charge utilities
Rating: 5 out of 5
Extension Builder in Brentford
Experience machine Operator. Who comes with digger and sum tools breaker petrol saw cable locater. Digging foundations for buildings and drive ways and garden levelling also i can prepare for utilities such as gas water electricity and drainage etc
Get in touch
Latest review:
Groundwork & Foundations- 17 Aug 2026
The guys arrived on time, worked the entire day without a break. They were polite, respectful and courteous. Nothing was too much trouble. They went above and beyond to help with what I needed. Great job and honest guys. Really happy with the result. Would definitely recommend. 😊
GURPREET SINGH
No reviews yet
Extension Builder in Brentford
Professional bathroom tiling. Laminate flooring. Bathroom installation and second fix. Other diy plumbing and small extension jobs.
Get in touch
INNOVATE BUILD GROUP LTD
Rating: 4.8 out of 5
Extension Builder in Brentford
I have over 20 years of experience in the construction industry. I am highly customer-focused and quality-driven, always aiming to complete jobs to the highest standards. My key goal is to ensure every project meets /exceeds customer expectations, delivering outstanding results every time.
Get in touch
Latest review:
Extensions- 7 Jun 2026
Zilvinas and the team at Innovate Builders were outstanding from start to finish. We hired them to build our two-storey side extension. Zilvinas was open, professional, and fully committed throughout the project. He was always available to answer questions, offer advice, and guide us through each stage of the build. His team worked hard and delivered a high-quality finish, all while keeping the project on schedule and within budget. As this was our first major building project, we relied heavily on Zilvinas's expertise and guidance. His knowledge, practical advice, and problem-solving skills were invaluable and made what could have been a stressful experience feel smooth and manageable. We are absolutely delighted with the result and would not hesitate to recommend Innovate Builder. As I said it was our first ever big project, we had heard many horror stories but are so grateful to have found Zilvinas and his team.
Sigma star carpentry ltd
No reviews yet
Extension Builder in Brentford
Hi all I have my own business company, we do just from A to Z or doing part jobs, depending on clients necessity. Our first thing it’s the quality and time schedule on time, to have a good relationship with the clients. All best Serge
Get in touch
Friesian Group Ltd
No reviews yet
Extension Builder in Brentford
We are a reliable construction and refurbishment company specialising in bathroom and washroom renovations, as well as all types of home repairs and refurbishment work. Our team delivers high-quality workmanship, attention to detail, and a professional service from start to finish. Whether you need a full washroom makeover or small repairs around your home, we are here to provide fast, trustworthy, and affordable solutions.
Get in touch
MC HandyMan
No reviews yet
Extension Builder in Brentford
Hello, I'm Martin, and I've got hands-on experience in the construction industry ranging from general handywork, building works and lanscaping. I've most recently been building garden rooms, laying flooring, tiling, cladding. I can fit doors, hardware/ironmongery and kitchens and am constantly assembling furniture, painting and decorating for my interior designer partner who is redesigning our flat. Whilst I’m new to this platform, I have successfully completed numerous projects within the residential sector and within hospitality where I worked for a number of years - in cafes, wine bars, and restaurants. Whether it’s a full build, a home improvement project, or smaller handywork, I take pride in my problem-solving skills, attention to detail, and honesty. Don't hesitate to get in touch and let me know what I can help you with.
Get in touch
Autumn Landscapes
No reviews yet
Extension Builder in Brentford
Bricklaying, general building and landscape specialist's We undertake various types og building work from extentions to new builds. Landscape specialists with over 15 years of experience completing all types of jobs such as: Re design and complete new gardens or changing space you already have. Driveways and patios
Get in touch

3.9

Top rated Extension Builders

Our Extension Builders in Brentford, 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 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.