Extension builders in Isleworth

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (23 reviews)

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Some of our top rated extension builders in Isleworth

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Abdel haja ltd
No reviews yet
Extension Builder in Isleworth
Hello my friend : we are a home and property maintenance company provides comprehensive services to keep properties in top shape, ensuring a safe and comfortable environment for living or working.
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TJ Elite Building Services LTD
Rating: 5 out of 5
Extension Builder in Isleworth
We have a team of qualified builders, electricians, plumbers, roofers to mention a few covering all aspects the building services we offer. Accumulating over 10 years of experience, covering all requirements of our customers, we aim to deliver a high quality service for your requirements We can provide all aspects of job to be covered from start to finish, from drawing plans, approval to the high quality finish of the job.
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Latest review:
Diligent, professional and finished job to a high standard. Only needed flooring done in all rooms but after seeing the quality of work, had further work carried out in gardens front and back. Have had no issues since and hes the one family goes to for any jobs that need doing, as know work gets done and we can trust that it will be of high standard.
tm solid core
No reviews yet
Extension Builder in Isleworth
Hi, I’m a skilled and reliable multi-trade construction specialist with several years of hands-on experience across a wide range of domestic building work. I originally started as a handyman and have since developed a strong all-round skill set through practical on-site experience. My main areas of work include kitchen fitting, bathroom installations (including toilets, showers and fittings), tiling, flooring, media walls, patios, and painting & decorating. I also have experience in general building and repair work, which allows me to take on a variety of projects from start to finish. I hold qualifications in bricklaying and plumbing from City & Guilds, which support the practical experience I’ve gained working on real projects. This combination allows me to deliver work that is both structurally sound and finished to a high standard. I take pride in being punctual, tidy, and easy to communicate with. I understand how important it is for customers to feel confident in who they hire, so I always aim to be clear with pricing, honest about timelines, and committed to delivering quality results. As I’m currently building my profile on MyBuilder, I’m focused on providing excellent workmanship and earning strong customer feedback.
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Maclondonbuilding
Rating: 4.9 out of 5
Extension Builder in Isleworth
MACLONDONBUILDING specialist in general construction and renovation services. All kind of house conversions . Our works are performed at the highest standard with attention to the details. Professional team always happy and enjoyed of the work.
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Latest review:
Tiling- 16 Jan 2026
Mac was fantastic and went above and beyond to do the job to a high standard, working well into the evening to get it done. I’d recommend him without hesitation for any work you need doing - big or small. We’re delighted with the finished product.
Marcel
Rating: 1 out of 5
Extension Builder in Isleworth
Hi there we are a growing company that does full refurbished of Comercial and Domestic properties a lot’s of projects done !! Wee are very happy to share our service with new clients ! Fell free to contact me!
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Latest review:
Tiling- 14 Oct 2023
Not reliable, they did not get back to me
krss group Ltd
No reviews yet
Extension Builder in Isleworth
We are a husband and wife team. We are a family run business been in the trade for 20 years. Jeet is a engineer and Ruby ensures all clients are looked after with reassurance of the build been completed onetime.
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Cannon Build Solutions Ltd
Rating: 5 out of 5
Extension Builder in Isleworth
As a family run business which has been in the building trade since 1864. We offer free no obligation quotations and consultations. A high quality, reasonably priced service, offering expert knowledge and advice.
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Latest review:
Loft Conversion- 4 Mar 2020
Tom has provided a really excellent service throughout the job. He gave us a number of quotes as we changed and refined our plans and he made some really helpful suggestions about how best to proceed. I was very impressed with his project management, I always felt that I was kept up to date with the progress of the job. The quality of work from Tom and his team has been great and we even completed a week ahead of schedule!
Mariusz Moniuszko
No reviews yet
Extension Builder in Isleworth
I have had a registered general contracting company since 2004. I have also achieved Master Builder status
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Singhd Limited
No reviews yet
Extension Builder in Isleworth
SinghD Limited is a residential and commercial building company, undertaking all building, renovating and decorating jobs. We work to the highest standards with customer focus at the forefront of all projects. Our experienced team is dedicated to delivering high quality work and ensuring customer satisfaction.
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Karanbir singh
New on MyBuilder
Extension Builder in Isleworth
Professional and reliable building contractor providing high-quality workmanship across residential projects. Experienced in renovations, extensions, loft conversions, roofing, plastering, carpentry and general building work. We pride ourselves on quality, attention to detail and customer satisfaction.
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Sukh Bajwa
No reviews yet
Extension Builder in Isleworth
Hi I am a builder and I can do all building work like loft, extension, refurbished, kitchen, bathroom, electric, plumbing, painting, skimming, plastering all work undertaken. Thanks
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Army Build Ltd
New on MyBuilder
Extension Builder in Isleworth
ARMY BUILD BUILT RIGHT. BUILT TO LAST. At Army Build, we take on everything from smaller repairs and improvements to full property renovations, extensions and commercial projects. We believe building work shouldn’t be complicated. We turn up when we say we will, keep you updated throughout the job and take real pride in the standard of our work. Whether you already know exactly what you want or you just need some advice on where to start, we’re happy to come out, take a proper look and talk through the best options for your property. Our services include: - Full renovations & refurbishments - Extensions & loft conversions - Kitchens & bathrooms - Plumbing & heating - Electrical works - Plastering & structural works - Carpentry & joinery - Decorating & finishing - Roofing & repairs - Commercial works & office fit-outs - General building & property maintenance We treat every property with the same care and attention we’d expect in our own, and our aim is simple: good communication, quality workmanship and a job done properly. Covering London and surrounding areas
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john waller
Rating: 1 out of 5
Extension Builder in Isleworth
father and son business both have cscs cards for bricklaying also do extensions and any building works ,i am a c.s.r.t (certificated surveyor in remedial treatments ) for damp and timber treatments,we have many years experience in the building industry,we have gained a good understanding of all the trades and have a good web site for you to view photos of our past projects .
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Latest review:
Damp Proofing- 20 Feb 2019
Said the damp would not be occurring after the damp treatment and gave a 10yr guarantee but it still keeps comming after 3 months of damproffing even though was given a 10 yr guarantee.
AS CONSTRUCTION 11 LTD
No reviews yet
Extension Builder in Isleworth
Our construction company, based in New Malden , southwest London, provides a full range of building services, from new home construction to renovations, extensions,bathrooms , landscaping, painting &decoration and loft conversions. Our skilled team of professionals is dedicated to delivering the highest quality workmanship and exceptional customer service. Our team is to make the home-building process not only smooth but genuinely rewarding. With us, you’ll create a home you can truly be proud of.
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manibuilder
Rating: 5 out of 5
Extension Builder in Isleworth
Mani construction ltd is an established professional building services based in london. we have over 10 years experience in total in building trade,we can take the guesswork out of any building problem and will recommend the best solution based on your requirements. the quality of work will never drop regardless of the size of complexity of the job in hand.
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Latest review:
Plastering- 13 Jun 2020
Andi and his team were amazing. They removed the existing plasterboard ceiling and replaced it then plastered the walls and ceiling. His price was very reasonable and job was done to a very high standard. His team were very friendly and their work was clean. Andi even went out his way to help me pick up a few heavy items from shops and load it in his van. Cannot fault his work and finished work on the time scale given. Recommend to all. Thanks to Andi and his team for giving my house a fresh look.
Jsb project ltd
No reviews yet
Extension Builder in Isleworth
Hello, This is JSB Project ltd. We are based in West London. We do Loft extensions, Garages, All kind of Extensions, Renovations, Kitchen bedorrms ans so more. We have projects around London. Free qoute. Please contact us for any inquiries. Thanks. Kind regards
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4.3

Top rated Extension Builders

Our Extension Builders in Isleworth, are rated 4.3 out of 5 based on 23 reviews from customers like you.

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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 Isleworth?

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

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

What are the hourly rates of extension builders in Isleworth?

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

Find extension builders in Isleworth with MyBuilder

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

Step 2: Compare different extension builders in Isleworth

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

Step 3: Hire Isleworth extension builders with confidence

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

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

What to ask a Isleworth extension builder before hiring?

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

An extension builder in Isleworth 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 Isleworth 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 Isleworth?

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 Isleworth 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 Isleworth 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 Isleworth

Can an extension builder in Isleworth help with planning permission?

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

Many Isleworth 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 Isleworth help with materials and finishes?

Yes, most extension builders in Isleworth 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.