Extension Builders in Marylebone, North London

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

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

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Jewel roofing & building
No reviews yet
Extension Builder in Marylebone, North London
We cover all roofing general building works decorating plumbing carpentry kitchen and bathroom renovations at a competitive price. Customer satisfaction is all we aim for. Free quotations for any customer
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DRACOUK Limited
Rating: 5 out of 5
Extension Builder in Marylebone, North London
Dra-co.uk is a construction company specialising in Home Extensions, Loft Conversions, Structural alterations and Home Renovation. We provide free quotes on all our services, and working closely with local architects and engineers. We are committed to providing 100% client satisfaction, and focus on exceeding the expectations of our clients.
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Latest review:
Conversions - General- 15 Jan 2020
I was very pleased with this builder. Quick reply for my posted job. Job was done fast and professionally.
Sonic Building Supplies Ltd
No reviews yet
Extension Builder in Marylebone, North London
At Sonic, we provide expert construction, plumbing, electrical and heating services for residential and commercial clients. With years of hands-on experience and a commitment to quality workmanship, our licensed technicians deliver reliable solutions—from routine maintenance and emergency repairs to full system installations. Whether you're dealing with a leaky pipe, faulty wiring, or a broken boiler, we’re here to help 24/7. Serving London, Surrey, Sussex, Hampshire, Berkshire, and surrounding areas, we pride ourselves on prompt service, transparent pricing, and customer satisfaction.
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Luna
No reviews yet
Extension Builder in Marylebone, North London
Luna is a small local run business who is big enough to cope but small enough to care. We are dedicated to producing the highest standards for our customers with over 20 years experience of electrics and building. What ever the problem, however large or small we will do our best to come up with the right solution for you.
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Bhullar bhuilders
No reviews yet
Extension Builder in Marylebone, North London
We are experienced builders with good team. We have been in to this industry from last 8 years . But the quality we provide is something that everyones are happy with. We do all kind of building work. Extention , bathroom , kitchen , tiling, flooring , plastering .etc. Almost everything .
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Cjm building specialists ltd
No reviews yet
Extension Builder in Marylebone, North London
We are a very experienced team of tradesmen offering all aspects of construction from new builds to refurbishment and extensions. We take on all sizes of jobs from a bathroom refurb or kitchen refurb all the way to multiple new builds. One thing we strive for is quality and customer relationship. We believe in using skilled tradesmen as that is what maintains a high quality of workmanship and leads to a happy client and high quality finished job.
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H&G Renovations
No reviews yet
Extension Builder in Marylebone, North London
"I'm a passionate kitchen and bathroom renovation specialist with over 25 years of experience transforming homes. My business is dedicated to bringing your vision to life, combining quality craftsmanship, innovative design, and a seamless customer experience. Let’s create your dream space together!"
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Painter
No reviews yet
Extension Builder in Marylebone, North London
I’m painter for 20 years
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SD Brickwork
No reviews yet
Extension Builder in Marylebone, North London
Hi my name is Stuart, I’ve been bricklaying for ten years now and love my job hopefully you like my profile
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Vladas
No reviews yet
Extension Builder in Marylebone, North London
At the end everyone should be happy..
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KS builders
No reviews yet
Extension Builder in Marylebone, North London
We can handle simple and complex jobs on time and with good price. We do all kind of jobs like painting and decorating, tiling, garden slabs, bath renovation , roofing , plumbing , electric , wood flooring , fix kitchen , skimming and maintenance etc…
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bifold and sliding doors
No reviews yet
Extension Builder in Marylebone, North London
We supply and install a wide range of Premium Glazing Solutions, bespoke to your requirements. Our products include Skylights, Sliding Doors, Bi-Folding Doors, French Doors and Aluminium Heritage Glazing. When working with us you may expect a friendly attitude combined with professionalism as well as an innovative approach towards your goals. Your final satisfaction is at paramount importance to us.
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DESIGN SEED DEVELOPMENTS LIMITED
No reviews yet
Extension Builder in Marylebone, North London
We have over 100 years of combined building experience we set up our business to stream line for our clients as we were constantly being let down by tradesman we merged 3 companies together combining heating, gas safe NiC electrical works and all building and brick laying so there is no reason for delays in a project at any given time
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David D.T.M Builders
Rating: 5 out of 5
Extension Builder in Marylebone, North London
Reliable building and maintenance services you can trust. We specialise in the installation of kitchens from leading brands including Howdens, Wren, Magnet, and IKEA, along with bathrooms and all types of flooring — including herringbone, laminate, and LVT / SPC. With a strong focus on quality, attention to detail, and customer satisfaction, we deliver honest, professional workmanship on every project, from start to finish. 📞 Contact us today for a free, no-obligation quote. Our Guarantee: High-quality workmanship, transparent pricing, and reliable service you can depend on.
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Latest review:
Hard Flooring- 27 Jun 2026
David was an absolute delight. He did an amazing job, fast and precise. Payment was as agreed, no hidden costs. The dog loves the flooring already. Asked him to quote for other jobs as well as I definitely will use him in the future. Highly recommend.
County Building
No reviews yet
Extension Builder in Marylebone, North London
We are a family run business with over 40years experience. We cover the whole of Hertfordshire, Essex and north London. We do everything from new builds, extensions, renovations to garden landscaping. We pride ourselves on our quality of work and never finish a job until our customers are happy with them end product.
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MQ Brickwork
No reviews yet
Extension Builder in Marylebone, North London
**Experienced Bricklayer Offering Quality Craftsmanship and Reliable Service** With over 18 years of experience in the UK construction industry, I am a skilled bricklayer dedicated to delivering exceptional quality and customer satisfaction. I specialize in a wide range of brickwork services, from residential and commercial projects to custom designs and repairs. **Key Services:** - Brick and block laying - New builds and extensions - Restorations and renovations - Garden walls and decorative features - Repairs and maintenance **Why Choose Us:** - Free, no-obligation quotations and professional advice - Commitment to excellence and attention to detail - Reliable and efficient service - Passion for the craft and dedication to customer satisfaction I take pride in my work, ensuring every project is completed to the highest standards. Whether you need a new build or a simple repair, my team and I are here to help bring your vision to life. Contact us today to discuss your project and see how we can meet your needs. IG MQ Brickwork
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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.

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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.