Extension Builders in Chiswick

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (21 reviews)

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Some of our top rated extension builders in Chiswick

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Sebastian's Builders
Rating: 5 out of 5
Extension Builder in Chiswick
My business comprises of general building works, including extensions, loft conversions and house refurbishments. I also undertake smaller works including bathrooms, kitchens garden patios and fencing. I have been in the building trade for 15 years starting as a dry lining contractor and then moving to a general building firm.
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Latest review:
Bathroom Fitting- 5 Oct 2022
Sebastian did a fantastic job with our downstairs toilet. Stayed close to me as there were delays in the delivery of some of the installations I’d ordered, he worked around it quite well for us. The quality of work is great! Thanks Seb.
Edelweiss Construction Ltd
No reviews yet
Extension Builder in Chiswick
Loft conversion, extension and refurbishment specialist.
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Green Vista Estates Ltd
No reviews yet
Extension Builder in Chiswick
At G.V.E.Contractors we specialise in transforming kitchens into the heart of your home. Our expert fitters bring precision, experience, and dedication to every project, ensuring exceptional results. Our Services: - Full Kitchen Installations: We handle complete kitchen fittings, including cabinetry, worktops, appliances, and fixtures. Our team ensures everything is installed to the highest standards. - Kitchen Renovations: Updating and remodeling existing kitchens to improve functionality and aesthetic appeal. We work closely with you to design and implement changes that meet your needs. - Custom Cabinetry: We design and fit bespoke cabinets tailored to maximize storage and match your kitchen’s style. Our custom solutions ensure your kitchen is both beautiful and practical. - Worktop Installations: Precision fitting of worktops, including granite, quartz, laminate, and more. We ensure a seamless and durable finish for your kitchen surfaces. - Plumbing and Electrical Work: Our services include the safe and efficient installation of all necessary plumbing and electrical components, ensuring your kitchen is fully functional.
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SOS Rofing Contractor LTD
No reviews yet
Extension Builder in Chiswick
Here at Roofing contractor&building Ltd we are a team with many years of experience We undertake all sorts or roofing works from new roof pitched slate/tile and flat roofing GRP fiberglass / rubber flat roofs / traditional torch on felt and much more both pitched and flat roof repairs - All sorts of UPVC - Fascia/soffit/guttering in various colours and designs I take pride in all my work. My aim is to ensure a 100% customer satisfaction. I’m friendly, polite and believe in quality of work and will always aim to deliver the best possible job. I’m reliable and you can be rest assured that you are in good hands with our services, Please contact us with any queries or questions on the above contact details. We look forward to working with you
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LONDON LIFE SPACE LTD
No reviews yet
Extension Builder in Chiswick
At London Life Space, we bring over 15 years of experience to every project, with a proven track record of excellence across the construction industry. With over £20 million worth of completed projects, including more than 100 flats and numerous extensions and loft conversions, we are trusted to deliver high-quality, efficient, and cost-effective solutions for residential and commercial clients alike. No project is too small - whether you're looking to expand your home with a loft conversion or undertake a large-scale development, we treat every project with the same dedication and attention to detail. Our focus is on precision, speed, and top-tier craftsmanship. We work closely with our clients to ensure their vision comes to life, on time and within budget. At London Life Space, we don’t just build structures - we create spaces that enhance lives.
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Spartans construction limited
No reviews yet
Extension Builder in Chiswick
Welcome to [Spartansconstruct] Building the Future, One Brick at a Time At [Spartansconstructi], we don’t just construct building — we build trust, quality, and long-lasting relationships. Based on strong values, skilled craftsmanship, and modern engineering, our company stands as a proud name in the construction industry, delivering excellence and durability in every project we undertake. Whether it’s a residential home, a commercial plaza, or a large-scale industrial site, we approach every task with the same dedication, passion, and attention to detail that has made us who we are today. Our journey is built upon hard work, teamwork, and an unshakable belief in delivering value that lasts for generations. --- 🧱 Our Story Founded with a dream to make a difference in the construction world, [spatans construct] started as a small team of passionate builders, engineers, and dreamers. We wanted to bring something different — construction that combines modern technology with traditional honesty and craftsmanship. From humble beginnings, we’ve grown into a full-service construction company capable of handling complex building projects with precision and care. Each milestone we’ve achieved reflects our commitment to doing thing
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Puzzle construction group
No reviews yet
Extension Builder in Chiswick
I’m a dedicated professional with extensive experience in loft conversion, extension, renovation and refurbishments. My passion is creating your dream living space, expanding your home with a stylish extension, renovating and refurbishing existing spaces or transforming unused loft spaces into beautiful and functional areas that meet the needs of my clients. Let’s work together to bring your version of life and create a space you’ll love.
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Sigma star carpentry ltd
No reviews yet
Extension Builder in Chiswick
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
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Christopher foot
No reviews yet
Extension Builder in Chiswick
Hi there my name is Chris I have previously been working for a company doing house extensions, loft conventions, house renovations and more. Though my years working with multiple of different trade I have become skilled in multiple of different areas.
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Ionut
Rating: 5 out of 5
Extension Builder in Chiswick
Hello, I'm Ionut handyman, I also do tile and floor work, as well as paving and driveway work.
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Latest review:
Landscaping- 7 May 2026
“We recently had our landscaping redone along with new turf installation, and the results were excellent. The team was professional, punctual, and paid great attention to detail from start to finish. They completely transformed the garden, leaving everything neat, tidy, and looking amazing. The new turf was laid perfectly and has already made such a difference to the overall appearance of the space. Communication throughout the project was clear and friendly, and the workmanship was top quality. Highly recommend to anyone looking for reliable and skilled landscapers.”
Kansal Consultancy Limited
No reviews yet
Extension Builder in Chiswick
We provide Structural and architectural services. We provide CAD, planning drawings, construction drawings, drafting, floor plans, and surveying drawings services.
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B&V Limited
No reviews yet
Extension Builder in Chiswick
B&V Limited B&v limited is a established civils company with many years experience of working within the utility and construction industry We have experience in the construction of new footpaths and roads requiring tarmac , modulars , slabs , kerbs ,garden.plastering.wood fence.fund, Foundation ,etc
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B&R building & property improvements
No reviews yet
Extension Builder in Chiswick
I have been working in the building industry for 12 years. I specialise in all general building and property refurbishment
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Gabriel Marocico
No reviews yet
Extension Builder in Chiswick
Hi if you want a nice and tasteful bath appeal to me 👌
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Declan Scott
No reviews yet
Extension Builder in Chiswick
I am an experienced time-served bricklayer & worked in many aspects of construction for 30 + yrs. I stand out from the rest because my work is 1st class, I am 100% reliable. My work ethics are transparent and a person of integrity.
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Peter renovation
Rating: 3.7 out of 5
Extension Builder in Chiswick
When you need a reliable builder for refurbish or extend your property our skilled team of experienced craftsmanship are ready to help you. We can provide a tailor-made service to suit your budget and requirements!
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Latest review:
Conversions - General- 6 Oct 2025
Peter and Dan did an excellent job from start to finish. They were professional, reliable, and easy to work with. The quality of their workmanship is top-notch, and they finished everything on time and to a high standard. I’m really pleased with the results and would highly recommend them.

4.2

Top rated Extension Builders

Our Extension Builders in Chiswick, are rated 4.2 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.