Extension Builders in Brentford

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 Brentford

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Thiara Construction LTD
No reviews yet
Extension Builder in Brentford
Thiara construction. All sort of building work undertaken. Specialist in paving. Free quotes given.
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HK GREWAL CONSTRUCTIONS LTD
New on MyBuilder
Extension Builder in Brentford
About Us With many years of experience in the construction industry, HK Grewal Construction Ltd has built a strong reputation for reliable service and high-quality workmanship. We have successfully completed a wide range of projects, from smaller renovation and repair jobs to full property refurbishments, extensions, loft conversions and structural alterations. Where We Work We cover South London, Surrey and surrounding areas, and are happy to travel for the right project. Please get in touch to discuss your location and requirements. Our Expertise Our specialist services include extensions, loft conversions, structural alterations and steelwork, brickwork, plastering, roofing, bathrooms, kitchens, flooring, painting and decorating, and complete property refurbishments. We can manage individual trades or provide a complete project service from start to finish. Why Choose Us? We believe in doing the job properly, paying attention to detail and keeping our customers informed throughout the project. We take pride in our workmanship and aim to provide a professional, honest and reliable service on every job. Whether you are planning a small renovation or a complete home transformation, we work closely with you to understand your visio
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Wayne
No reviews yet
Extension Builder in Brentford
I have been a bricklayer for 10years. I can do Extensions, pointing and more
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Efficient construct ltd
No reviews yet
Extension Builder in Brentford
Efficient Construct prides itself on their extensive experience in construction management, with over 15 years of successfully completing various projects. Our team of professionals are dedicated to delivering high-quality results, ensuring that every project is completed with precision and attention to detail. We specialize in managing all aspects of the construction process, from design and planning to project completion.
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Huseco Limited
Rating: 3.7 out of 5
Extension Builder in Brentford
HUSECO Limited is a well-established family business specialising in domestic renovation and construction projects. Our portfolio of skills also includes architectural design, interior design, and planning, which allows for stylish renovations, extensions, lofts, and modern living spaces. We have a loyal team of highly skilled builders, and the dedicated project manager personally oversees all our projects
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Latest review:
Extensions- 14 Sep 2025
How long should a 3m extension take if drawings were approved in April, the conservatory was demolished, the foundation completed, and the steel structure was already on site by May.?
Anjelina
Rating: 5 out of 5
Extension Builder in Brentford
Hello, my name is Krasimir Dimitrov i am a tradesman, i deal with loft conversions, demolitions, new builds, extensions. I have been in the trade for over 10 years.
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Latest review:
Demolition- 17 May 2025
The team was great They did everything as they promised The job was finished on time Thanks for the help, it was much appreciated.
Standard Double Glazing
No reviews yet
Extension Builder in Brentford
Welcome to Standard double glazing profile we provide services like , Glass installation,Glass restoration& repair,Broken window,Door repair, Double Glazing Repairs,Emergency Repairs,Lock replacement,Patio Door,Triple Glazing, window Repair,composite Door, windows & Door, Lanter Roof , sky Roof, Aluminium windows & Door All work Under fully Guarantee we provide Guarantee Certificates To all customers
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SCO ELECTRICAL & BUILDING LTD
No reviews yet
Extension Builder in Brentford
SCo is a family run business with experts in multiple trades. With a focus on electrical work, we offer 24/7 call outs for electrical problems. We cover all aspects of electrical installation, additions, and maintenance. We also offer building related services, such as, complete property renovations, maintenance, and additions. Please don’t hesitate to contact us.
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Pro Construction London Ltd
No reviews yet
Extension Builder in Brentford
Pro Construction London is a trusted London-based building company with over two decades of experience delivering high-quality renovations, refurbishments, and property maintenance. We pride ourselves on our professionalism, reliability, and attention to detail, ensuring every project is completed to the highest standard. From full property renovations and loft conversions to bespoke finishes and one-off repairs, we provide a seamless service from start to finish — clear communication, transparent pricing, and a tidy worksite every time. Our reputation is built on satisfied clients who return to us for future projects, knowing they can rely on a skilled and dedicated team to bring their ideas to life.
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S.G carpentry
Rating: 5 out of 5
Extension Builder in Brentford
SG carpentry & construction is a quality building company working in the south London and surrey area. We specialise in property refurbishment , kitchens , bespoke cabinetry and wardrobes , extensions , loft extensions , garden offices ,flooring and doors. We take pride in our professionalism , punctuality and attention to detail and use a wide variety of materials to suit all budgets. We aim for 100% customer satisfaction every time and provide you with the workmanship that you deserve.
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Latest review:
Extensions- 31 Oct 2019
Sam built a 9 meter by 4 meter ground floor extension for us, it has 2 rooms, 2 large sky lights, french doors and a patio. The build came in on time and on budget, Sam and his guys where always friendly and courteous, would explain what was going on and made sure we where happy with everything. We have autistic boys, one of them likes to know whats happening at all times and wanted to help and ask question non stop, the guys where absolutely brilliant with them, even letting them lay some bricks. I could not have asked for better workman when it came to my boys! We are very happy with our extension, it has made a massive difference to our home and lives. We have no problem at all in highly recommending Sam to anyone!! Shel & Jim Aitken
Swift Construct and Maintenance Ltd
New on MyBuilder
Extension Builder in Brentford
About Us: Swift Construction Ltd is a premier construction and maintenance company based in the UK, committed to delivering high-quality building solutions with unparalleled efficiency and precision. Our name, Swift Construction, encapsulates our ethos of providing swift, reliable, and expert services to meet all your construction and maintenance needs. Our Services: At Swift Construction, we offer a comprehensive range of services tailored to both residential and commercial clients across the South East and M25 area. Our expertise includes: Construction Services: • Residential Construction: From custom homes to multi-family units, we build spaces that are not only functional but also aesthetically pleasing. • Commercial Construction: We cater to businesses of all sizes, creating office spaces, retail establishments, and industrial facilities that meet your specific requirements for clients across the South East and M25 area. • Renovations and Extensions: Our team excels in transforming existing spaces through innovative renovations and seamless extensions, enhancing both value and utility Maintenance Services: • Preventive Maintenance: We offer scheduled maintenance plans to keep your property in top condition,
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Sterling Developments Group Ltd
No reviews yet
Extension Builder in Brentford
provides professional property maintenance, repairs, renovations and building services across London. We specialise in plastering and skimming, delivering smooth, high-quality finishes for walls and ceilings. We also provide painting & decorating, general property repairs, carpentry, flooring, tiling, kitchen and bathroom refurbishments, as well as all types of day-to-day maintenance work. Alongside smaller jobs, we undertake house extensions, loft conversions, structural alterations, garden room construction and full property refurbishments, working to a high standard from start to finish. Whether you need a minor repair, a single room redecorated or a complete renovation, no job is too big or too small. We pride ourselves on quality workmanship, attention to detail, honest pricing and clear communication, ensuring every project is completed to the highest standard and every customer is completely satisfied.
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NIRVAIR LONDON LTD
No reviews yet
Extension Builder in Brentford
All forms of domestic and commercial property builder services including extensions, new build, refurbishment, flooring, bathrooms, roofing, electrical and plumbing. We provide a reliable, high quality and price competitive services in and around London
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AH Builder
Rating: 5 out of 5
Extension Builder in Brentford
AH North Builder Ltd specialise in all types of building we are professional and very determined to ensure our clients expectations are met. we have worked on many different building projects for more than 10 years experience.
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Latest review:
Extensions- 13 Nov 2020
Well, I do not usually write reviews, but this time is an exception. So after getting a number of quotations, I decided to go ahead with Fredi. The process was very smooth throughout, Fredi is a great individual and a reliable professional. The plan was to build a rear extension, but working with Fredi, we decided to commission him for the patio, changing all house flooring, kitchen, and two bathrooms. All have been delivered to completion with top-notch results. Most importantly, we have now a new family friend...Fredi the builder!!.. my kids say :)
Statecraft Building Ltd.
Rating: 5 out of 5
Extension Builder in Brentford
We strive to provide the best building services posible within and outside London. Our company has been built on continuous recommendation, repeat custom and quality workmanship. We offer full building services and you can be sure we`ll take care of the job.
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Latest review:
Milen, initially came as I had a leak in my ensuit where the tiles had lost their grout. He was very honest in giving me advice, and regrouted at a very reasonable price. He then came a month later to remove the tiles in the shower and replace the plaster protection board, then retiled. He purchased all the products and gave me advice on the most valuable sustainable tiles. The work was carried out a to very high level, I would most definitely hire Milen in the future, and highly recommend him.
Acaciaroofing Ltd
New on MyBuilder
Extension Builder in Brentford
acacia Roofing & Building Services We specialise in all aspects of roofing, with particular expertise in pitched roofs, slate roofing, tiling, roof repairs and complete re-roofs. We provide a reliable and professional service for domestic customers, covering everything from slipped or broken tiles and minor repairs to full roof replacements, leadwork, chimneys, fascias, soffits and guttering. We pride ourselves on high-quality workmanship, attention to detail, honest communication and leaving every job completed to a high standard. Our services include: Pitched Roofing | Slate & Tile Roofing | New Roofs | Re-Roofs | Roof Repairs | Leadwork | Chimneys | Flat Roofs | Fascias | Soffits | Guttering | General Building Services. Quality work. Professional service. Roofs built to last.
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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.

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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.