Extension Builders in Holborn, East London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (16 reviews)

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

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Dragos Jugaru
Rating: 5 out of 5
Extension Builder in Holborn, East London
JD SMART BUILDING SERVICES is a company with 7 years of experience assisting in residential and commercial building projects. Skilled in site preparation, material handling, and operating basic construction tools. Knowledgeable in safety procedures and committed to maintaining a productive and hazard-free work environment.
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Latest review:
Windows & Doors (Wooden)- 17 Jan 2026
Great work. Very professional and very fast. Highly recomended.
Lita construction ltd
Rating: 4.7 out of 5
Extension Builder in Holborn, East London
All kinds of work,Framework,Basments,groundworks, refurbishment, extension,lots years experience in this field predominantly working on housing developments of different sizes.
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Latest review:
Groundwork & Foundations- 1 Apr 2024
Concrete job
Prestige Build and Management Limited
No reviews yet
Extension Builder in Holborn, East London
We are a South-East London-based company that specialises in design, bespoke property redevelopments, refurbishment, extensions and loft conversions. We also do roof replacements and create stylish bathrooms and amazing kitchens.
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NW London Contracts Ltd
No reviews yet
Extension Builder in Holborn, East London
Dear valued customer We would like to thank you for shortlisting us and hopefully giving us the opportunity to make your home look beautiful, we have 22 years experience in constructing driveways, patios, refurbishment, extensions and alterations on residential properties across London.
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THE AAKTR GROUP LTD
No reviews yet
Extension Builder in Holborn, East London
At Aaktr Developments we formulate bespoke design & construction. Residential Properties: From design to refurbishment elegant, tailored homes that blend style, functionality, and innovation. Commercial Spaces: Designing and refurbishing sophisticated offices, vibrant cafes, and standout restaurants that reflect the unique identity of our clients. Churches: Preserving heritage and enhancing functionality through thoughtful redevelopment. Concept Design: Bringing your ideas to life with innovative and inspiring design concepts that set the foundation for your project. Full Architectural RIBA Services: Comprehensive architectural planning and design, adhering to the highest standards of the Royal Institute of British Architects (RIBA). Full RIBA/Construction Services: From initial planning to final construction, we deliver bespoke, high-quality solutions, ensuring every detail is crafted to perfection and on time.
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MYD Studio London Limited
Rating: 5 out of 5
Extension Builder in Holborn, East London
MYD STUDIO London limited is a Design-Led Architectural and Planning consultancy focusing on New Build ,Extensions, Loft Conversions, Change of use and Flat conversion projects in different Boroughs in London. Whether you are looking to increase the size of your home, make the most of its current size through an internal alteration, or gain planning permission in order to increase its value before selling, we will help you to produce a planning application to meet all of your expectations.
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Latest review:
Extensions- 6 Aug 2022
Majid has been great in producing drawings for our rear extension. He's also helped explain the whole build process to us from design, building inspection, and building. We received our drawings in under 10 days from the initial consultation and site visit. Majid was accomodating and was able to visit the site on weekends for the initial consultation. Always a pleasure to deal with and has been easy to reach over the phone or email. Would highly recommend Maji and MYD Studio London to anyone looking for an architect.
HOSSBER LIMITED
No reviews yet
Extension Builder in Holborn, East London
I started working in construction sites as cleaner back in 2005 and then joined a company that was carrying out commercial renovation for licenced premises, listed buildings and offices and then moved to other companies that were carrying out domestic works, such as loft conversions, extension, renovation and everything in between. I would like to think of our company as a 1 stop shop to all your construction needs, from planning to costing, from project managing to building and delivering.
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Ivor
Rating: 5 out of 5
Extension Builder in Holborn, East London
refurbishment,rear &side extensions,loft conversions+all the 2nd fix internall works-kitchen,plumbing,electrical,drainage,tilling,glazing,rendering,plastering,painting
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Latest review:
LargeGround floor extension, conversion of a bedroom to second bathroom, loft conversion, front garden paving , rear garden natural stone fitting, full refurbished of 5 bedroom house, 2 bathrooms, 2 living rooms and office, 1 large garden shed builded
Keiss
Rating: 4.5 out of 5
Extension Builder in Holborn, East London
Experienced and reliable carpenter and builder offering exceptional craftsmanship Whether it's creating custom furniture or managing construction projects, I prioritise attention to detail and exceeding expectations.. Dedicated to delivering high-quality work on-time and within budget. Strong communication skills, attention to detail, and a commitment to customer satisfaction. Let's discuss your project and bring your vision to life.
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Latest review:
Joinery & Cabinet Making- 17 Feb 2025
Keiss took the deposit and did not respond to my call after promising that he will come today to fix my wardrobe.
Dochita Iosif
No reviews yet
Extension Builder in Holborn, East London
Over 20 years in construction. We are a small and hard working team. We have done many jobs successfully and people like the way we work. If you don't want to have headache and to be safe with the work you have, then we are the right team!
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Adam Daniel LTD
No reviews yet
Extension Builder in Holborn, East London
Cliden Construction LDN is a small, London-based construction company specialising in high-end domestic refurbishments. With a passion for quality and attention to detail, we work closely with discerning clients across London to transform their homes into exceptional living spaces. Whether it’s a complete structural refurbishment, a luxury kitchen or bathroom renovation, or a full interior overhaul, we pride ourselves on delivering outstanding results that exceed expectations. As a boutique construction firm, we offer a highly personalised service. You will deal directly with experienced professionals who care about every aspect of your project — from the initial design consultation through to the final finishing touches. We only use premium materials and trusted specialist tradesmen to ensure a flawless finish every time. At Cliden Construction LDN, we understand that your home is one of your most important investments. That’s why we are committed to the highest standards of craftsmanship, reliability, and client satisfaction on every project we undertake. We look forward to the opportunity to bring your vision to life.
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ara design
No reviews yet
Extension Builder in Holborn, East London
We are a team of specialists consisting of architectural consultant, interior designer, project manager, joiner, wall finishing specialist and stone layer. Our strenghts lay in creativity, space planning, experience and attention to detail.
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Mama jones industries
No reviews yet
Extension Builder in Holborn, East London
We’re a reliable, full-service construction company built on quality workmanship, honesty, and pride in every job we deliver. From start to finish, we handle it all — with a particular specialism in loft conversions, bathroom installations, plumbing work, and complete home improvements. What sets us apart is our people. Our team of experienced, skilled, and genuinely friendly tradesmen and women bring not only technical expertise, but professionalism, charisma, and respect into every home we work in. We believe great results come from clear communication, attention to detail, and doing things properly — no shortcuts. We’re known for being on time, transparent, and fair with our quotes, so there are no surprises along the way. Every project is approached with care and precision, ensuring the final result meets — and often exceeds — our clients’ expectations. Whether it’s transforming unused space into a beautiful loft, creating a modern bathroom, or taking care of essential plumbing work, we treat every job as if it were our own home. Your vision matters, and we’re committed to delivering results to your perfection.
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Bluelime planning consultancy LTD
No reviews yet
Extension Builder in Holborn, East London
Bluelime is an architectural design and build company established in 2007. Initially, we specialized in delivering projects for some of the best-known high street brands, including Specsavers, Starbucks, and Krispy creams. In 2014, we made a strategic shift away from the commercial sector, redirecting our focus toward the residential market. Drawing from our professional expertise in design and project management from the commercial realm, we seamlessly adapted these principles to the residential sector. Over the last decade, Bluelime has achieved remarkable success, securing approval for over 400 planning applications across every borough in London. We’ve completed more than 50 development projects, encompassing new builds, extensions, loft conversions, and refurbishments. Our experience spans a diverse range of properties, from Victorian houses to modern apartments, culminating in a portfolio that stands as a testament to our commitment and expertise.
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Shelomack designs
No reviews yet
Extension Builder in Holborn, East London
I used to watch while others built but i have spent 18 years doing what I used to pay others for. I am a very physical person and consider quality to be my aim. I holds a 127 iq score because of my quick and efficient way of creating the possibilities to satisfy and bring dreams to reality. I am located in Hackney of London where I grew up. My practical experience extends beyond building houses but also conversion of cars and using recyclables for design. I am very open minded and inventive. Ready to satisfy.
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KB construction solutions
Rating: 4.5 out of 5
Extension Builder in Holborn, East London
.Kitchen Fittings .Loft Conversion .Brick Work/ Skimming .Plastering/Plumbing .Wall & Floor Tiling .Gardening/ Fencing .Bathrooms .Wood Flooring .Extensions
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Latest review:
Extensions- 24 Apr 2021
Kujtim, working with his glazers, created a bespoke porch with a glass roof just as we asked. We were impressed with the finish of the internal plastering and Kujtim was able to come to our rescue one evening when we became locked outside the newly installed porch door. Although the project took longer than was anticipated we are happy with the quality of the finished product.

Top rated Extension Builders

Our Extension Builders in Holborn, East London, are rated 4 out of 5 based on 16 reviews from customers like you.

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

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

What are the hourly rates of extension builders in 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 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 Holborn, East London extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Holborn, East London home extension project is likely to cost.

Find extension builders in Holborn, East London with MyBuilder

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

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

When you start receiving interest, review profiles of local 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 Holborn, East London extension builders with confidence

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

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 Holborn, East London extension builder before hiring?

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

An extension builder in 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 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 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 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 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 Holborn, East London

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

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

Many 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 Holborn, East London help with materials and finishes?

Yes, most extension builders in 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.