Extension Builders in Marylebone, North London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (17 reviews)

Easily find verified Marylebone, North London Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Marylebone, North London.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Marylebone, North London

3587 Results

Sort by:

SCME Builders Ltd
Rating: 5 out of 5
Extension Builder in Marylebone, North London
SCME Builders Ltd are a family run business for over 35 years.We are happy to give a free no obligation estimate on all types of building work. A NHBC registered company we can provide testimonials and references on all works large or small
Get in touch
Latest review:
Extensions- 29 Aug 2020
Marvellous. Will always recommend Gary owner SCME Builders Ltd.
As2 construction Ltd
No reviews yet
Extension Builder in Marylebone, North London
AS2 Construction Ltd , where craftsmanship meets innovation. As a leading construction company, we specialize in delivering high-quality projects tailored to meet your vision. Our dedicated team of experts ensures excellence in every detail, making us your trusted partner in construction solutions. Explore a seamless blend of expertise, reliability, and creativity with AS2.
Get in touch
AW BUILDING SERVICE
No reviews yet
Extension Builder in Marylebone, North London
We are hard working and honest team. We do All building works since 2006. We are also NICEIC register. Kind Regards. Adrian Wator.
Get in touch
Paramount Works Ltd
No reviews yet
Extension Builder in Marylebone, North London
With over 20 years of experience, Paramount Works specialises in Kitchens, Bathrooms, Bedrooms, Extensions and Loft Conversions. We proudly serve London, Buckinghamshire and Birmingham. At Paramount Works, we’re committed to delivering the highest standards of craftsmanship and service ensuring your vision and satisfaction are always our top priorities.
Get in touch
Lvcarpentry
No reviews yet
Extension Builder in Marylebone, North London
Hi, I’m Val, a professional carpenter with years of experience helping clients bring their projects to life. From custom furniture to home renovations and repairs, I specialize in delivering high-quality craftsmanship with attention to detail and reliability. Whether you’re looking to transform a space, create something unique, or simply need expert repairs, I’m here to help. I take pride in my work and aim to exceed expectations with every job. Let’s discuss how I can assist with your next project – I look forward to working with you!
Get in touch
Grand innovations surrey ltd
No reviews yet
Extension Builder in Marylebone, North London
Our team of highly experienced professionals offer top-notch building services to help you achieve the home of your dreams whether your looking make major structural changes, add a new extension or upgrade your homes features we’ve got you covered. At grand innovations, we believe in using only the highest quality and sustainable materials to ensure that your home is unparalleled and meets or exceeds your expectations, we pride ourselves on our attention to detail and our commitment to delivering exceptional workmanship every time. You will find no upfront, large deposits required, here at grand innovations we offer a simple payment plan structured and tailored for each individual client so you can track the progress and the budget of your project with confidence. We would love to book you in for a discovery call to discuss your current or future plans for your project.
Get in touch
R Bonar Maintenance
Rating: 5 out of 5
Extension Builder in Marylebone, North London
We are family run business based in Guildford with over 25 years experience in building industry. R Bonar Maintenance we offer a full range of building services tailored to your individual requirements. With many years of experience and a wealth of knowledge within the building industry. R Bonar Maintenance always ensure that a high quality service at affordable price is offered to each and every client at all times.
Get in touch
Latest review:
Extensions- 3 Jun 2020
Small hallway extension and roofing. Excellent standard. Extremely thorough, great attention to detail, total satisfaction; triple A workman, 100% positive attitude.
CARVE Engineering Co Ltd
Rating: 1 out of 5
Extension Builder in Marylebone, North London
We undertake large and small construction rebuild projects, house extension and loft conversion, shop design and decoration, home design and decoration, customized furniture. We can provide professional drawing and floor plan as well.
Get in touch
Latest review:
Extensions- 19 Sep 2022
Man Ho or Calvin Ho' or Man Fu Ho, who owns Carve Engineering Co. Ltd. He also has a Hong Kong branch carve-eng.com . I didn't know he subcontracted the whole project to a group of Chinese mainlanders who couldn't speak English. And he asked a British Gas gas engineer to sign off the plumbing work. I obtained the planning in December 2021. The work started on 31/1/2022 and almost finished now 19/9/2022. It supposed to end in three months time as they promised. It's only a single storey side extension and shouldn't be left unfinished with pipes broke. The workers only came to work once a week and sometimes the work stopped for a month or so. The price included the purchase of a boiler and installation. But there's no timer or thermostat and I was asked to purchase these and install them with extra cost. The workers' van broke down five times and they didn't turn up for five different days. There's no windowsill and they called this a standard window people would install. The exterior wall was painted inconsistent to our original wall and I had to argue to get them pebbledash and repainted. They left the fences on our neighbours. The pipes are still leaking. Shower leaked for 3 months. They even charged extra for the electricity sockets they installed in our kitchen. They took down the mains water supply switch and never install it back so our house has no in house mains water stop valve! They didn't hoover and didn't have a hoover. Avoid this company!
A & A Build and Design
No reviews yet
Extension Builder in Marylebone, North London
Refurbishment, Extensions, New build, Design and Maintenance of any domestic building project.
Get in touch
Paul Stevens
No reviews yet
Extension Builder in Marylebone, North London
Friendly, reliable and professional service. All brickwork undertaken. No job too small
Get in touch
DGJ Property Maintenance
No reviews yet
Extension Builder in Marylebone, North London
DGJ property maintenance provide all aspects of building works from refurbishment, conversions , extensions to all small jobs with the same 100 percent dedication and commitment.
Get in touch
Escape Home and Garden
No reviews yet
Extension Builder in Marylebone, North London
Escape is new to my MY Builder, we are a General Builder and Handyman with over 20 years experience. I also love landscape design, anything from a new patio to fencing, brick walls or even a complete new design for your garden, there is no job to small or big. Im a perfectionist who takes pride and responsibilities in his work to a high standard! Im also a qualified FGAS Air conditioning installer. Please have a look at a our pictures and feel free to contact us if you any questions.
Get in touch
H M Renovations LTD
No reviews yet
Extension Builder in Marylebone, North London
We are a professional construction and renovation team based in the UK, operating under HM Renovations Ltd. Our team includes experienced electricians, plumbers, carpenters, and builders, allowing us to handle a wide range of residential and commercial projects from start to finish. We specialise in: Full property renovations and refurbishments Shop fitting and bespoke counter installations Bathroom and kitchen installations Plumbing, electrical, and carpentry work General building and maintenance We pride ourselves on high-quality workmanship, reliable service, and clear communication throughout every project. Fully insured and committed to customer satisfaction.
Get in touch
Rafal Decor
Rating: 5 out of 5
Extension Builder in Marylebone, North London
Decor Property LTD, provides a full building service. We are experienced builders who gives you highest quality work and very competitive quotes. We specialize in: • Extensions • Basements • Conservatory • Loft/Flat roof/Fibreglass • Asbestos removing • Brick work/Pointing • Plastering • Painting/Decorating • Wall papering • Tiling • Electrical jobs • Plumbing • Door/Windows supply • Kitchen/Bathroom • Carpentry/Staircase/Flooring • Bespoke furniture • Gardens
Get in touch
Latest review:
Extensions- 13 Oct 2019
Rafal is a professional builder and has done the job properly. He is polite, punctual and experienced. I would rate him 9/10.
White and osullivan construction Ltd
No reviews yet
Extension Builder in Marylebone, North London
Hi My business is white and Osullivan construction. I’m the director. Started in the building trade after collage and soon had my own company set up. Every year getting stronger. Me and the team specialise in new builds, extensions, loft conversions and commercial maintenance. I have a team of qualified workers 3 full time and other trades who iv used and built a relationship up over past 5years.
Get in touch
VCNY GROUP LIMITED
No reviews yet
Extension Builder in Marylebone, North London
We are a dedicated team of experienced, field-based professionals with diverse backgrounds in Health and Safety, Engineering, Project Management and Environmental Sustainability. Our combined expertise allows us to deliver integrated building solutions covering essential services, ensuring each client’s project operates smoothly, efficiently, on schedule and always in compliance with the highest industry standards. At VCNY Group Limited, we pride ourselves on turning ambitious visions into reality by blending innovation with practical, reliable execution. Established on unwavering principles of integrity, creativity and excellence. Our company has earned a leading reputation across the construction and civil engineering sectors. In addition to exceptional building services, we provide expert consultancy to guide clients through complex projects with confidence. From initial concepts to project completion, we remain committed to quality, sustainability and client satisfaction, setting the benchmark for superior results in every endeavour.
Get in touch

Top rated Extension Builders

Our Extension Builders in Marylebone, North London, are rated 4 out of 5 based on 17 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

What are the hourly rates of extension builders in Marylebone, North London?

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

Find extension builders in Marylebone, North London with MyBuilder

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

Step 2: Compare different extension builders in Marylebone, North London

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

Step 3: Hire Marylebone, North London extension builders with confidence

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

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

What to ask a Marylebone, North London extension builder before hiring?

Before hiring an extension builder in Marylebone, North London or extension building company in Marylebone, North 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 Marylebone, North London?

An extension builder in Marylebone, North 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 Marylebone, North 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 Marylebone, North 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 Marylebone, North 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 Marylebone, North 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 Marylebone, North London

Can an extension builder in Marylebone, North London help with planning permission?

Yes, many extension builders in Marylebone, North 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 Marylebone, North London handle everything from design to construction?

Many Marylebone, North 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 Marylebone, North London help with materials and finishes?

Yes, most extension builders in Marylebone, North 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.