Extension Builders in Holborn, West London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in Holborn, West London

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I.d london construction ltd
No reviews yet
Extension Builder in Holborn, West London
Extensive knowledge of new build and renovations. Family run business. Specialise in loft conversions, kitchen and bathroom renovations
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PARM G BUILDERS & CONTRACTORS LIMITED
No reviews yet
Extension Builder in Holborn, West London
Hi, am parm hope u guys are fine I just want to say I love my work and I love to make people’s happy with my work so give us chance for all type of work extensions bathrooms paints electrics plumbings laminate flooring skirtings doors tiles thank you
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LACJ Maintenance
No reviews yet
Extension Builder in Holborn, West London
LACJ Maintenance is a dedicated company that works to a very high standard. All works undertaken. From digging the foundation to the little finishing touches. Any work needed doing LACJ Maintenance can do it. We keep everything in house so all works meet the expectations.
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rawstraw realty ltd
No reviews yet
Extension Builder in Holborn, West London
Hello We are a team of professional build workers with expertise in Electrics, plumbing, ground works, landscaping and much more
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Jass
Rating: 5 out of 5
Extension Builder in Holborn, West London
We do all kind of staircase with fill finishing, Roofs Structure, Roof Tiles , installing doors , Flooring and other construction work.
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Latest review:
Carpentry- 1 Jul 2026
Jass was quick to respond and gave a good price for fabricating a staircase on site. Jass made sure I was happy before leaving and readjusted one of the steps which was creaking.
Loft Haven Ltd
No reviews yet
Extension Builder in Holborn, West London
We specialise in a wide range of loft conversion types tailored to different property styles. Whether you’re considering a space-enhancing Dormer, a bright and airy Velux loft, or a full Mansard transformation, we offer bespoke solutions to suit your needs. Our expert team will guide you through every option – including Hip to Gable and L-Shaped Dormers – to find the ideal fit for your home, layout, and lifestyle goals.
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Poul
No reviews yet
Extension Builder in Holborn, West London
Loft, extension, carpentry work , houses repairs, kitchen installment , electricity installment and maintenance , conduct designs of interior and exterior according to the customers want.
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Oak and stone construction
No reviews yet
Extension Builder in Holborn, West London
We are a professional construction company specialising in building, refurbishing, painting, and decorating services. With a focus on quality, reliability, and attention to detail, we deliver projects for both residential and commercial clients, ensuring every job is completed to a high standard and on time. Quality building, refurbishing, painting, and decorating you can trust.
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Hsingh builders ltd
No reviews yet
Extension Builder in Holborn, West London
I am professional builder with an experience of 17 years in the building industry and track record of successful projects . I am committed to deliver high standard of quality work which is completed on agreed time scale within the given budget. Starting from beginning till end, customers satisfaction is my priority , which is why I am able to turn visions into reality. You can really on us as our core values are- strong foundations, beautiful designs and lasting value. My vision as a builder is to build the dream house for my customers, so you can trust us in bringing architectural visions to life. You can rely us on as we do cater the needs of our customers, provide attention to every aspect and complete the work to high standards. We do discuss each step of the work with the customer and build a long lasting relationship with customers.
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DRAGAN
No reviews yet
Extension Builder in Holborn, West London
Personal skills: CITB Health,safety & environment test pass. CPCS Practical Test achievement in the category of plant including endorsement where appropriate. Category & Endorsement A59C Excavator 360 above 10 tonnes Lifting Operations. FIRST AID AT WORK LEVEL 1 AWARD TRAFFIC MARSHALL MULTI SKILL CSCS CARD.
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GP Construction Services Ltd
Rating: 5 out of 5
Extension Builder in Holborn, West London
New build, extensions, loft conversion, glazing, roofing, electrical and plumbing
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Latest review:
We recently bought flat to let and decided to do completely refurbish. We invited few quotations including Gurwinder. We shortlisted top 3 quotation and invited him for discussion. During the meeting he was very professional and full of ideas. So we decided to honour him. Work started as agree on time, during the Job we liked his ownership of the work and advising us on the very step of the decision. Although it would have been better if his communications were more punctual but it neither affect us nor delayed any work. Even after completion he has been very helpful if any issue arises ( nothing major).
London Prime Construction and Builders LTD
No reviews yet
Extension Builder in Holborn, West London
London Prime Construction and Builders is where we turn your dream home into a reality. With a reputation for excellence and a passion for exceptional craftsmanship, we specialise in residential construction, property extensions, and comprehensive renovations across London. Our mission is to enhance your living spaces with customised solutions that reflect your personal style and functional needs.
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Waris Group Ltd
Rating: 5 out of 5
Extension Builder in Holborn, West London
WARIS GROUP LTD NEW BUILD - LOFT CONVERSION, EXTENSION, PATIO AND DRIVEWAYS ALL ROOFING WORKS FLOOR TILES WORK DOOR & WINDOWS GARDEN WORK KITCHEN BATHROOMS, ELECTRICAL WORK PLUMBING WORK BOILER & HEATING PLASTER WORK K RENDER INSTALLATION SKIMMING WORK RENOVATION, DECORATION, FACIA AND GUTTERING ALL BUILDING WORKS UNDERTAKEN FREE ESTIMATE Why chosse us The 15 years of experience and a commitment to excellence, we offer top-quality craftsmanship and superior customer service. From minor fixes to major renovations , trust us to deliver reliable solutions tailored to your needs. WE HAVE COMPLETED A LOT OF PROJECTS
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Latest review:
We hired waris group ltd for a complete rear house extension and kitchen refit. From start to finish, their communication was fantastic. They arrived on time, kept the site clean every day, and finished the project right on schedule and within budget. Highly recommended
COMFORT BUILD LTD
No reviews yet
Extension Builder in Holborn, West London
At Comfort Build, we bring years of hands-on experience and a commitment to quality in every project we take on. We specialise in kitchen and bathroom fittings, home extensions, full refurbishments, carpentry work, and front and back garden services - including decking, fencing, and landscaping - to complete your space inside and out. Whether it’s transforming a single room or updating your entire home, we have the skills and attention to detail to get it done right. We also offer many other services, ensuring that all your building needs are covered. We’re reliable, tidy, and always focused on delivering results that speak for themselves.
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Bujar
No reviews yet
Extension Builder in Holborn, West London
Hi
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Rolex Carpentry & Roofing
No reviews yet
Extension Builder in Holborn, West London
Welcome to Rolex Carpentry & Roofing a company dedicated to providing the best possible service to its clients. We are a family owned and operated business and have provided quality construction services to our clients since 2002 We are skilled in all aspects of construction. We take pride in our workmanship and promise to provide you with the highest-quality finish on any project. We strive to make sure our customers are satisfied and that we exceed their expectations in every aspect possible
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4.2

Top rated Extension Builders

Our Extension Builders in Holborn, West London, are rated 4.2 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 Holborn, West London?

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 Holborn, West London 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 Holborn, West London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Holborn, West London?

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

Find extension builders in Holborn, West London with MyBuilder

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

Step 2: Compare different extension builders in Holborn, West London

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

Step 3: Hire Holborn, West London extension builders with confidence

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

Holborn, West London extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Holborn, West London extension builder before hiring?

Before hiring an extension builder in Holborn, West London or extension building company in Holborn, West London, 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 Holborn, West London?

An extension builder in Holborn, West London 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 Holborn, West London 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 Holborn, West London?

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 Holborn, West London 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 Holborn, West London 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 Holborn, West London

Can an extension builder in Holborn, West London help with planning permission?

Yes, many extension builders in Holborn, West London 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 Holborn, West London handle everything from design to construction?

Many Holborn, West London 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 Holborn, West London help with materials and finishes?

Yes, most extension builders in Holborn, West London 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.