Extension builders in High Holborn, West London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (19 reviews)

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

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Deans Property Preservation
No reviews yet
Extension Builder in High Holborn, West London
At Deans Property Preservation, we pride ourselves on our personal service and attention to detail, working closely with our clients to restore and create beautiful homes. With 35 years of experience, we work on buildings of all sizes and ages, taking on the design and build of contemporary kitchens, bathrooms and extensions, working in both residential and commercial settings. We have vast amounts of experience in refurbishing period properties across the capital.
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Rayway limited
Rating: 5 out of 5
Extension Builder in High Holborn, West London
Over 15 years of experience in building and construction industry
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Latest review:
Restoration & Refurbishment- 18 Feb 2021
Ray was an absolute professional. He fitted a new downstairs toilet which required a new soil pipe and associated groundwork as well as new stud walling to partition the space. He did most of the work himself, but brought in others for the pieces where he wanted an expert. He was flexible to small changes and was happy to take on additional work when unforeseen issues were discovered. The areas he had worked in were quickly cleaned before he left each day. Overall the work was completed to a good quality and at a reasonable price.
Plaza
Rating: 5 out of 5
Extension Builder in High Holborn, West London
With over 10 years of experience in the London construction market, our company provides a wide range of professional building and renovation services. We specialise primarily in all types of tiling work — whether for bathrooms, kitchens, gardens, or outdoor areas. In addition, we handle smaller tasks such as painting, repairs, and installations, as well as full-scale plumbing, electrical work, and complete refurbishments. We take great pride in our reliability, punctuality, and the high quality of our workmanship. Every project is carried out with exceptional attention to detail, ensuring cleanliness, precision, and a solid guarantee on all completed work. I’m are always happy to offer expert advice and support throughout the renovation process, including assistance with sourcing and delivering materials needed for the job. My works covers a wide range of projects — from full bathroom renovations to flooring, kitchen upgrades, exterior work, and bricklaying. Upon request, I can also provide client recommendations from previous projects to confirm the quality of service
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Latest review:
Kitchen Fitting- 19 Aug 2026
David did an excellent job of installing my kitchen. He went above and beyond to make sure the installation deadline I had was met, and was very helpful and professional. I would highly recommend him.
G&J Construction
Rating: 5 out of 5
Extension Builder in High Holborn, West London
Hi, my name is Jurgen and I have been working in the building trade for over 15 years. At G&J Construction we have a small but hardworking team who is specialised in : • Extensions • Loft Conversions • Bathrooms • Kitchens •All General Building Works We have done lots of extensions and loft conversions along with general buildings. Contact us for a free quotation and to advice you on your project. We look forward to working with you!
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Latest review:
Restoration & Refurbishment- 31 Mar 2025
J&G did a fantastic job of renovating my kitchen, including removing the old units, altering a chimney breast according to Planning Permission guidelines, plastering, painting, moving the radiator, laying a new floor, running new electrics and fitting new units and appliances from Wren. Jurgen is an excellent communicator, always taking the time to explain what was going on and answering questions. I particularly appreciated his honesty about the structural challenges of altering an Edwardian chimney breast, proposing alternative solutions which were cheaper and less disruptive. The quality of the finish was really good - from the electrician and plumber to plasterers and painters, all his team took great pride in their workmanship, and were all polite and friendly. Although the overall length of the project got extended, Jurgen made sure all the snagging was thoroughly completed. Overall, highly recommended and a pleasure to deal with. I'd definitely hire Jurgen again.
London Elite Build Ltd
No reviews yet
Extension Builder in High Holborn, West London
We are 2 builder with experience in fitting bathrooms, flooring, kitchens, painting and doing loft and porch extensions. We are located in Bermondsey and we are happy to serve all London.
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Skyline renovating ltd
No reviews yet
Extension Builder in High Holborn, West London
Welcome to Skyline Renovating Ltd. We specialise in renovation, construction, and development. We cover areas London and East Sussex.Our experienced team delivers high-quality projects on time and within budget. Whether updating your home or building new structures to developing properties, we bring your vision to life. Trust us to handle all your construction needs with professionalism and excellence.
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OBM Properties
Rating: 5 out of 5
Extension Builder in High Holborn, West London
Renovating & maintaining buildings for over 40 years. Extensions, Loft Conversions, Refurbishments Fitted Kitchens, Bedrooms, Offices,Bathrooms Flooring , doors and windows. Interior & exterior decorating, Tiling, Glazing Property maintenance, Handyman service, curtain rails, shelving, storage solutions, picture, mirror hanging, no job too small gather jobs together for excellent value
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Latest review:
Painting & Decorating- 28 Oct 2024
Tony arrived on the same day of being selected for the job, and completed all the work to a very high standard. You will struggle to find a better quality decorator!
I. N.S CONSTRUCTION & LANDSCAPE LTD
Rating: 5 out of 5
Extension Builder in High Holborn, West London
We beat all the quotes!
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Latest review:
Extensions- 22 Dec 2025
Good honest communications, good work progress and easy to get on with. Mutual respect shown both sides.
Spoonerbrothers London
Rating: 5 out of 5
Extension Builder in High Holborn, West London
Spooner Brothers London has 20 years of building experience We have a good reputation for customer service, many of our leads are recommendation, with competitive prices & a high standard of workmanship. We specialise in orangeries, conservatories, porches, Skypods, windows, doors & bi-folds ! We are Certass fenestration registered, so all work comes with a building compliant certificate and an insurance backed guarantee See our brochures on the Spooner brothers london website
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Latest review:
Windows & Doors (uPVC & Metal)- 29 Jan 2024
John did a fantastic job of replacing a large sash window in our kitchen. He was easy to work with, and was very clean and tidy with the job. On top of that the price was very fair, particularly for the calibre of work completed. Would recommend!!
Urban Modern Homes
Rating: 5 out of 5
Extension Builder in High Holborn, West London
We are a team of highly skilled individuals, with a great sense of professionalism and integrity. Our purpose is to deliver the transition from our customer's vision to reality and strive to bring satisfaction and joy with the results of our work. We aim to offer the best possible service while building trust with our clients. Having over a decade experience in the building industry, gives us the possibility to be quick, flexible and efficient.
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Latest review:
Carpentry- 11 Jan 2023
This was a great experience with a builder who arrived when he said he would and did what he said he would do! Identified the problem we had and got to work repairing it! Super efficient and nice to deal with! Thumbes up!
GDM BUILDING SOLUTIONS
Rating: 5 out of 5
Extension Builder in High Holborn, West London
With forty years of construction experience we are qualified tradespeople Our range of construction projects include kitchens & bathrooms, refurbishments, loft conversions and extensions. We project manage our work and believe that good clear communication with our clients is key to a successful project- from our first consultation visit, the quotation and build process. We want our clients to be delighted with both the quality of our work, and the manner in which it is carried out.
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Latest review:
Extensions- 13 Jan 2019
George was excellent throughout - would highly recommend. Although I did not hire George to complete the whole job (as someone in my family is a bricklayer) he was instrumental in completing the build. A few points to demonstrate: - Fair and transparent quote (which was stuck to); - Flexible throughout delays caused by me (planning, etc.); - Supportive (advice on what he would do if he was running whole job); - Professional (including team). I will use him again.
Iulian Isac
Rating: 5 out of 5
Extension Builder in High Holborn, West London
Good work Good quality Experience in building
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Latest review:
Very satisfied with Iulian,very kind person. Amazing quality of work. Highly recommend. Eye for detail and doesn’t compromise on quality.
Z3 Construction ltd
No reviews yet
Extension Builder in High Holborn, West London
We understand that construction is more than just building—it’s about creating spaces that are functional, durable, and perfectly suited to your needs. That’s why we take the time to plan carefully, communicate clearly, and work efficiently from start to finish. Whether you’re upgrading a single room, expanding your property, or starting a project from the ground up
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Pro Construction London Ltd
No reviews yet
Extension Builder in High Holborn, West London
Pro Construction London is a trusted London-based building company with over two decades of experience delivering high-quality renovations, refurbishments, and property maintenance. We pride ourselves on our professionalism, reliability, and attention to detail, ensuring every project is completed to the highest standard. From full property renovations and loft conversions to bespoke finishes and one-off repairs, we provide a seamless service from start to finish — clear communication, transparent pricing, and a tidy worksite every time. Our reputation is built on satisfied clients who return to us for future projects, knowing they can rely on a skilled and dedicated team to bring their ideas to life.
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GUANGDONG GEKE ELECTRONIC TECHNOLOGY CO., LTD
No reviews yet
Extension Builder in High Holborn, West London
We are a solar photovoltaic panel manufacturer in China. We design, supply and PM renewable energy project worldwide for customers requested. Kindly drop us email at geket@yahoo.com for further discussion. God bless you
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RIVIERA PLUMB LONDON
Rating: 3 out of 5
Extension Builder in High Holborn, West London
Riviera plumb offer bathroom refurbishment and reactive plumbing maintenance over south east London, well established since 2018 in England, and since 2008 in Cannes ( France ) we offer a reliable service and we pride the quality of our workmanship as much as our customer service
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Latest review:
Bathroom Fitting- 21 Jun 2022
We are not entirely satisfied with Ludovic's work. Some of the tiles were not cut to the correct messurement which left big gaps in between. Worse still, the grouting was very messy and did not have a smooth finish. We will now have to get another Tiler to redo some of the tiling work. Overall, it was not a professional job and we are not very happy with his workmanship.

4.6

Top rated Extension Builders

Our Extension Builders in High Holborn, West London, are rated 4.6 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 High 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 High 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 High Holborn, West London who are available and interested can respond to your post.

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

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

Find extension builders in High Holborn, West London with MyBuilder

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

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

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

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

High 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 High Holborn, West London extension builder before hiring?

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

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

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

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

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

Yes, most extension builders in High 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.