Extension Builders in High Holborn, East London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in High Holborn, East London

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Smart windows
Rating: 5 out of 5
Extension Builder in High Holborn, East London
Smart windows from MKD windows Group are a family run business covering Essex and Surrey. We specialise in UPVC , Wood & Aluminium. Offering quality products at quality prices. Reliable service, no pushy salespeople just a straight forward price! Certass registered with a 10 year insurance backed guarantee.
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Mar 2026
Would highly recommend Dean, he removed my window and fitted French doors. Thank you.
Corinth Contractors Ltd
Rating: 5 out of 5
Extension Builder in High Holborn, East London
Corinth Contractors is a residential contracting firm celebrating growing success from inception. Corinth Contractors undertakes residential renovation and extension projects allowing their clients to experience a hassle free, professional service with emphasis upon communication, execution and quality.
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Latest review:
Corinth Contractors from the beginning was a delight to work with upon our project. Some issues arose through the works as it was a fairly large project but quick solutions were presented! The service and quality of work was great and their project programme really helped us keep track throughout especially when we needed to supply items! Very happy with the final product and we have recommended to friends and family when/if they do their houses in the future.
Urban Builders Ltd
No reviews yet
Extension Builder in High Holborn, East London
Urban Builders are a well-established General Building company based in London. We have carried out a full portfolio of works from new build to landscaping. We are aware of our client’s needs and requirements. We are honest, knowledgeable, trustworthy, efficient and reliable.
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Emperor Contractors Limited
No reviews yet
Extension Builder in High Holborn, East London
This is a construction company with many connections within the industry. Quality and longevity describes our state of works. We have a portfolio of many projects which all of them have been successful.
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Plumbing
No reviews yet
Extension Builder in High Holborn, East London
hello, I'm Alin, this is my nickname, I've been working in construction since 2005, and I've done most types of operations in this field, from the foundation to the roof, since 2017, I've been working every day as a plumber, and over time I've had to deal with all kinds of challenges, which I successfully completed. Among other things, I am a qualified electrician in this country. so far I've worked through different companies, and now I think it's time to work for myself
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Saj
New on MyBuilder
Extension Builder in High Holborn, East London
Hi ,, Got a 25 years experience in trade .we are a full-service building contractors dedicated to turning your architectral vision into reality . Specializing in new builds , extensions and complex renovations ,our team manages every phase of your project from intial planning and site preparation to subcontractors co-ordinations and final inspectors . Here to help u .in any kind of building projects .thank u so much .
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Day Dream Construction Ltd.
No reviews yet
Extension Builder in High Holborn, East London
We are a professional group of companies who do all building work undertaken.
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Brother’s786 trading
No reviews yet
Extension Builder in High Holborn, East London
Hi, I’m Harman Singh ,a trusted and experienced window and door installer with a strong focus on quality workmanship, reliability, and customer satisfaction. With 4 years of hands-on experience in the trade, I specialise in the supply and installation of: • uPVC, aluminium, and composite doors • Casement, sash, bay, and tilt & turn windows • Energy-efficient and secure glazing solutions I’m fully qualified, FENSA-registered, and committed to meeting all relevant building regulations and British Standards. Whether you’re upgrading your home or tackling a new build, I’ll work with you every step of the way to ensure a smooth, professional finish — on time and on budget. 💬 Friendly advice, clear communication, and no hard selling — just honest, high-quality work you can trust. I look forward to helping you improve your home!
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Home Reno Builders Ltd
No reviews yet
Extension Builder in High Holborn, East London
Hi i want to tell you one thing only, you will be proud yourself to hire me build your dream house.and i know you are spending your hard earned money foryour build a dream house once in a life.i have an experience last 25 years. all kind of building work taken.
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Hillway Construction Limited
No reviews yet
Extension Builder in High Holborn, East London
At Hillway Construction, every project begins with a deep understanding of how people live, interact, and envision their space. We deliver high-quality residential construction across London and the Home Counties, from bespoke refurbishments and extensions to full new builds, with a focus on craftsmanship, transparency, and client satisfaction.
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JPD PILING & GROUNDWORK LTD
Rating: 4.8 out of 5
Extension Builder in High Holborn, East London
We are a specialist piling & groundwork company / new build & extensions builder & include Lanscaping with 25 years experience.
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Latest review:
Groundwork & Foundations- 20 Sep 2018
JPD boys came to rescue us when we were almost stuck with our RC foundation on our project, we got a very competitive quote from them and the job was done to a very high standard. Not only did they helped with that, they also gave us a quote for the block work, again this was done without snagging. We will definitely use them over again and recommend them to anyone anytime.
HR CHEEMA LTD
No reviews yet
Extension Builder in High Holborn, East London
I am doing this building work from 5 year . I have 10 familys who hiering me for repair work,landscaping,gardening ect.
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Gudgeon’S groundworks and construction
No reviews yet
Extension Builder in High Holborn, East London
Gudgeons Groundworks & Construction is a Hertfordshire-based contractor specialising in residential extensions, new builds, and structural groundworks. We deliver high-quality construction from foundations and drainage through to superstructure, working closely with clients, architects, and engineers to ensure every project is completed to specification and the highest standards. From single-storey and multi-storey extensions to full new-build homes and outbuildings, we provide a reliable, end-to-end service built on craftsmanship, attention to detail, and clear communication.
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ThorneBack
No reviews yet
Extension Builder in High Holborn, East London
I have worked in the building industry for the last 7 years doing trade work including, capentary, bricklaying and grounds work, some of our work involves pitching roofs, buildings walls, digging foundations and drainage.
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Cip contruction ltd
No reviews yet
Extension Builder in High Holborn, East London
Our experienced team of professionals is dedicated to delivering exceptional services, from project planning and design to construction services and project management. With our commitment to quality, safety, and timely completion, we strive to exceed your expectations and deliver results that you’ll love.
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Integrate fitouts ltd
No reviews yet
Extension Builder in High Holborn, East London
Transforming spaces across the UK! 🛠️ From sleek shopfitting to all aspects off construction, Integrate Fitouts Ltd brings your vision to life. Contact us for unparalleled expertise. 📞 ‪07517 217785‬ 📧 integratefitouts@gmail.com
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4.1

Top rated Extension Builders

Our Extension Builders in High Holborn, East London, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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What types of services are offered by local extension builders in High Holborn, East 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 High Holborn, East 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 High Holborn, East London who are available and interested can respond to your post.

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

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

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

Find extension builders in High Holborn, East London with MyBuilder

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

Step 2: Compare different extension builders in High Holborn, East London

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

Step 3: Hire High Holborn, East London extension builders with confidence

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

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

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

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

An extension builder in High Holborn, East 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 High Holborn, East 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 High Holborn, East 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 High Holborn, East 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 High Holborn, East 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 High Holborn, East London

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

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

Many High Holborn, East 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 High Holborn, East London help with materials and finishes?

Yes, most extension builders in High Holborn, East 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.