Extension builders in Chiswick

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (21 reviews)

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Some of our top rated extension builders in Chiswick

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JBVlasceanu
No reviews yet
Extension Builder in Chiswick
We are a team of builders who know how to do everything from electric to plumbing to extensions and etc... our website is jbvlasceanu.co.uk if you wish to know more informations about us!
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Landmark construction ltd
No reviews yet
Extension Builder in Chiswick
Landmark Construction is a trusted construction company specialising in high quality residential and commercial projects. In the residential sector, we undertake everything from small renovations to full scale new builds, providing exceptional craftsmanship tailored to our clients needs. On the commercial side, we excel in office fit-outs and retail projects, creating functional and visually appealing spaces. As proud members of Federal Master Builders and Trust Mark, we uphold the highest industry standards, ensuring quality, reliability, and customer satisfaction in every project we deliver.
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Omran
No reviews yet
Extension Builder in Chiswick
With years of hands-on site experience, I specialise in all aspects of first and second fix carpentry from timber framing, roofing, and stud walls to doors, skirting, and precision interior finishings. I take pride in clean workmanship, accurate measurements, and delivering durable results that stand the test of time. Reliable, efficient, and dedicated to getting every detail right on the first pass.
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Alpha omega builds ltd
No reviews yet
Extension Builder in Chiswick
We specialise in extensions, loft conversions, renovations, outhouses and office pods. All our team members are fully qualified with over 15 years of experience. We pride ourselves in high quality, efficient work but provide competitive rates and can accommodate various budgets.
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TD Building
No reviews yet
Extension Builder in Chiswick
Fluent in Turkish. I have 45 years of experiencing construction that have worked in all areas including high-rise buildings and rough construction metal work measurements. I understand every part of the process and always deliver quality work. Written by the son of the builder.
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Propertkare
Rating: 5 out of 5
Extension Builder in Chiswick
Propertkare is service run building and refurbishment group. We undertake all forms of building work and maintenances, kitchen and refurbishment, painting and tiling. We have been trading for past 10yrs with great success.
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Latest review:
Carpentry- 14 Oct 2025
Mr Williamson did a fantastic job installing and repairing fire doors in my HMO property to the exact standard required by the council. He was very professional, punctual, and highly attentive to detail throughout the entire project. The quality of his work was exceptional, and he ensured the job was completed within the agreed deadline. I’m very pleased with his service and would gladly recommend him to anyone looking for a reliable and skilled carpenter.
Johny the Builder
Rating: 5 out of 5
Extension Builder in Chiswick
PROFESSIONAL BUILDERS. Johny The Builder Ltd are Building Contractors based in Romford, Essex. We undertake commercial and domestic Refurbishments, Roofing, Loft conversions, Brickwork, Extensions, Basements and new building projects. We make your House a Home
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Latest review:
Extensions- 28 Sep 2018
Johnny was very nice to deal with. When there were problems they were quick to find ways to rectify them. They started at short notice& finished on time which I was very impressive. We got a no. of quotes,Johnny was middle of the range but with a better level of service than others. Johnny was very open about when things might cost more &gave us the option if we wanted to proceed. A few things to note: -this was our 1st experience of any building work &we should have remembered they are builders, not designers -we both work long hours &so most days didn't see the team to get an update or brief them. This meant a few things were missed or miscommunicated - while most of the team were lovely the electrician used was horrible to deal with. He got very cross about requested changes, didn't deliver everything requested &just did silly things like putting in a light switch with 2buttons where there was only one Light or hanging lights incredibly low when we had given measurements of where we wanted them - we got Johnny's team to build some extra storage for us which on the whole was fine but some things weren't centred or for example the wine rack they built was wonky Overall, it was a good experience and we would recommend them but would suggest be home to oversee the work more than once a week (must be true of any building work!) and get your own electrician. Very happy to talk to people and give references-the house looks great now.
Onwood Carpentry & Joinery Ltd
No reviews yet
Extension Builder in Chiswick
Onwood Carpentry & Joinery Ltd specialises in high-quality carpentry and joinery for residential projects. We carry out first and second fix carpentry, as well as build extensions, loft conversions, undertake full renovations, delivering reliable workmanship and a professional service from start to finish. We have strong experience in residential build projects, structural carpentry, including roofs, studwork, RSJs, and all aspects of internal fit-out. We take pride in precision, organisation, and attention to detail on every job. Our services include: • First & second fix carpentry • Structural carpentry • Extensions & loft conversions and new builds We understand how important trust and communication are when working in someone’s home. That’s why we are punctual, tidy, and respectful, keeping sites safe and disruption to a minimum. We aim to complete all work to a high standard, on time and within budget. If you’re looking for a dependable carpentry and joinery company that takes pride in quality workmanship, Onwood Carpentry & Joinery Ltd would be happy to help.
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VM Construction Pvt Ltd
Rating: 5 out of 5
Extension Builder in Chiswick
VM Construction Pvt Ltd offers clients a full set of specialised services to refurbish, repair and maintain your property both inside and outside. Our aim has always been to provide good quality to each of our clients in services delivered and finished product. We accomplish this through a dedicated, professional workforce and an approach which exceeds customer expectations. We specialise in: Roof and loft conversion Extension New builds Refurbishment Plumbing and electric Plastering
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Latest review:
Extensions- 25 Apr 2020
Financial restrictions meant we had to change from an extension to simply improving the existing house. I gave Vlad a call on a friday and his army was ready to start the very next Monday morning. All would have been finished in less than 2 weeks but the unexpected Covid-19 lockdown on 23rd March meant that supplies were harder to get. Very pleased with our brand new house. Good job done on new Electrics, Kitchen, Bathroom and plumbing and he even helped fix our D.I.Y furniture at the end. Will definitely use VM on our next project.
Ultra renovations
No reviews yet
Extension Builder in Chiswick
I’m a multi-skilled builder with hands-on experience across carpentry, joinery, plastering, tiling, and general construction. I take pride in delivering quality workmanship, problem-solving on site, and finishing jobs to a high standard
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Solar construction
No reviews yet
Extension Builder in Chiswick
Our team specialises is all aspects off construction. From loft conversion to shop fitting. We also have a team that will come a build your IKEA furniture. No job to small
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C C M BUILDERS
No reviews yet
Extension Builder in Chiswick
CCM Builders began as a general works contractor in 2011. Over the years, the company has undertaken many challenging projects and accumulated a range of skills and experiences on design and building solutions, project management services, building trades and related engineering works. I am a reliable professional, with emphasis on clear communication and follow through procedures, ensuring that client’s objectives are top priority and delivered in a timely manner.
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Ng builders
No reviews yet
Extension Builder in Chiswick
NG BUILDERS we undertake all types of building work and always complete to the highest standards
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DDR Group Ltd
No reviews yet
Extension Builder in Chiswick
DDR Group Ltd is a professional building and refurbishment company providing high quality construction services across London and Essex. We specialize in bathroom fitting, kitchen installations, full property refurbishments, extensions, loft conversions, roofing, decorating, carpentry, groundwork, drainage and general building works.
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Ajmo Construction ltd
No reviews yet
Extension Builder in Chiswick
Your Dreams , Our Priority 🏡
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Costello’s construction
No reviews yet
Extension Builder in Chiswick
Hello it’s Owen from Costello’s construction here, we as a company bring great service from the moment we start to the moment we finish. We cover all aspects of building from big projects to small projects supply top quality work which is always to a customers satisfaction as we like to keep our very good reputation up to standards also keeping our customers happy. The main thing for us as a business is that we always like to work with the customer closely to make sure they get the best job for the best price we can. Thanks Owen from costello’s construction
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4.4

Top rated Extension Builders

Our Extension Builders in Chiswick, are rated 4.4 out of 5 based on 21 reviews from customers like you.

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What types of services are offered by local extension builders in Chiswick?

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

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

What are the hourly rates of extension builders in Chiswick?

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

Find extension builders in Chiswick with MyBuilder

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

Step 2: Compare different extension builders in Chiswick

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

Step 3: Hire Chiswick extension builders with confidence

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

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

What to ask a Chiswick extension builder before hiring?

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

An extension builder in Chiswick 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 Chiswick 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 Chiswick?

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 Chiswick 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 Chiswick 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 Chiswick

Can an extension builder in Chiswick help with planning permission?

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

Many Chiswick 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 Chiswick help with materials and finishes?

Yes, most extension builders in Chiswick 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.