Extension builders in Marylebone, West London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (21 reviews)

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

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Abdullah azouz.
Rating: 5 out of 5
Extension Builder in Marylebone, West London
I’m involved in residential property development. My role includes supporting construction projects, coordinating with teams, and helping ensure work is completed efficiently, on time, and within budget.”
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Latest review:
Bathroom Fitting- 23 Apr 2026
Rapid response and professional work.
Empe building services ltd
Rating: 5 out of 5
Extension Builder in Marylebone, West London
BASED IN WEST LONDON EMPE BUILDING SERVICES ltd. ARE A COMPANY OFFERING A RANGE OF BUILDING SERVICES. WE TAKE GREAT PRIDE IN OUR WORK AND PLACE A STRONG FOCUS ON WORKING VERY CLOSELY WITCH OUR CUSTOMERS THROUGHOUT ALL THE STAGES OF THE PROJECT, AS TO ENSURE EVERY DECISION IS DISCUSSED AND QUERYS ARE ADRESSED. OUR REPUTATION IS THE FUNDATION OF OUR SUCCESS. WE TAKE PRIDE IN OUR APPROCHABLE, PROFESIONAL, EFFICIENT AND TRANSPARENT SERVICE. PLEASE VIEW OUR GALLERY FOR EXAMPLES OF OUR WORK.
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Latest review:
Extensions- 31 Jan 2020
We had a porch built by Emil & Peter's team & lead water pipe changed, our house has gone from the tattiest on the street to the smartest now :) The guys turned up on time when they said & worked hard all day, their workmanship is excellent & my neighbour has also used them to do quite a few jobs now& are really pleased with their work. I will definitely be using them again & would highly recommend them!
London’s Construction
No reviews yet
Extension Builder in Marylebone, West London
Building the Future, Restoring the Past – London’s Construction LTD 🇬🇧 At London’s Construction LTD, we deliver exceptional new builds, refurbishments, and engineering services across the UK. Whether you’re constructing from scratch, upgrading an existing property, or need expert engineering input, we manage every detail — including all necessary engineering, licensing, and compliance services — to bring your project to life efficiently and professionally. ✅ New Build Homes & Commercial Properties ✅ Full Refurbishment & Renovation Services ✅ Structural & Civil Engineering Solutions ✅ Licensing, Permits & Building Regulation Approvals ✅ Experienced, Accredited & Fully Insured Team With a commitment to quality, safety, and on-time delivery, we support homeowners, businesses, developers, and public sector clients at every stage of the project. 📍 Serving clients across the UK
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Planix Ltd
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Planix limited carry out all aspects of constructor but specialised in loft conversion, extensions, garage conversions and property refurbishment including kitchen and bathroom fitting.
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Latest review:
Conversions - General- 21 Oct 2021
Job done well and good solutions provided when problems were encountered
Egm construction ltd
No reviews yet
Extension Builder in Marylebone, West London
Building Trust with Quality Work
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RS building
Rating: 5 out of 5
Extension Builder in Marylebone, West London
We’re a highly professional team with over 20 years’ experience in extensions, loft conversions, high-end renovations, new builds, and property conversions. We deliver top-quality work on time and within budget. Our rates are among the most competitive in the UK at £180 per day per man + 10% OHP. With all specialist trades under one umbrella, we can handle projects of any size smoothly—from £20k up to £2m. Happy to discuss your project further
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Latest review:
RS Building successfully delivered two full back-to-brick refurbishments and a new-build development for us in Greenwich, including demolition and construction of four new dwellings. Their level of workmanship is exceptional, and their attention to detail is second to none. As experienced property developers, we’ve worked with many contractors—but RS Building stand out for their reliability, quality, and professionalism. We have since recommended them to several colleagues, all of whom have been equally impressed. Our only regret is not finding them sooner. We look forward to working with them again on future projects.
BUILDING ANDREW & GREG LTD
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Welcome to our profile, we are a company specializing in all kinds of renovation and construction works, all the works shown in the photos are made by us, we are diligent and open to all kinds of innovative ideas of our clients, in our opinion there are no impossible things to do, you have to Just think and take action, all the best A&G
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Latest review:
Bathroom Fitting- 2 Mar 2021
Greg and Andrew are nice guys and got the job completed to a good standard.
Pavlito Construction Ltd
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Pavlito Construction Ltd is a family run business with over 15 years of international experience in construction and general building (Germany, Italy, Poland and UK). We have worked extremely hard in order to establish a well respected name and reputation.
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Latest review:
Restoration & Refurbishment- 15 Feb 2016
Pawel and his team modernised our two bedroom house from top to bottom. They installed central heating in every room, they removed our old warm air heating, made an open plan for the kitchen and living room area, installed new bathroom and kitchen units and did the tiling too, they updated our electrics and sockets and also plastered and painted the walls and fitted our wooden flooring for downstairs. The job was completed within 12 weeks. We were very happy with the modernisation, our home looks completely different and has a new modern fresh feel. We will definately be using Pawel and his team for future jobs. Thanks again Khalima
ANM Efficient Solutions
Rating: 4.8 out of 5
Extension Builder in Marylebone, West London
Hello, Welcome to ANM Efficient Solutions profile– Expert Carpentry & Joinery Services At ANM Efficient Solutions we specialise in high-quality woodworking and carpentry services, offering expert craftsmanship in: ✔ Kitchen Fitting – Precision installations tailored to your space and style. ✔ Door Installation – Interior and exterior doors fitted with accuracy. ✔ Floor Installation – Hardwood, laminate, and engineered flooring for a perfect finish. ✔ Custom Woodworking – Bespoke carpentry solutions for homes and businesses. ✔ Framing & Structural Work – Strong, reliable framing for new builds and renovations. ✔ Roof Shell Construction – Expertly built roof structures for durability and safety. With years of experience, a keen eye for detail, and a commitment to customer satisfaction, we ensure every project is completed to the highest standard. Whether you’re renovating your home, upgrading your business, or building from the ground up, ANM Efficient Solutions is your trusted partner in carpentry. Regards ANM Team
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Latest review:
Kitchen Fitting- 26 Oct 2026
Max and team were fantastic from start to finish. Couldn’t have been more helpful, great communication and went above and beyond. They completely refurbished my kitchen, bathroom and new fence in the garden. They did it on time and on budget. The finish was fantastic! I couldn’t fault anything and would definitely use them again.
T&S Construction
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Ive been in building work all my life and im very good so people say theres not many builders like me ,try me and i bet you have me back i can show my work .
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Latest review:
Extensions- 2 May 2018
Tom is a very competent builder, who has attention to details. Tom continuously went out of his way to find ways to meet my requirements, Whenever we had atypical challenge during my extension Tom's default position was "let's find a work around." He was creative and efficient in doing so, and most importantly cost effective, as I was running on tight budget. Fantastic experience working with Tom, he estimated the work to complete in 6 weeks, the work was done 5 and a half weeks and handed over. The works speaks of itself, very urban finish with high level of professionalism. I was almost hands off the project due to work travel, and Tom took care of all the aspects without me being involved day to day and micro manage. He is surely being to be big league builder in no time. I would recommend him whole heartedly.
Diti building & Construction Ltd
No reviews yet
Extension Builder in Marylebone, West London
Our company takes pride and joy in the high quality that we prove. We strive to achieve highest levels of work for our clients which has been the case for over 20 years of experience in construction. We do everything from loft conversion, extensions, full refurbs, bathroom, kitchens. We are proud to say that our work has spoken for us throughout the years and will be glad to show older projects of our quality works. So feel free to contact us for any questions or query’s, we’ll be happy to accommodate you and take your projects on. We have a full team builders , electricians, plumbers, carpenters, tilers, painters and we have our architects and engineers that we works closely with. We hope to take on your projects and give you an amazing experience throughout the process and give a top quality finish all all works taken on. TikTok name DBC Instagram name DITI Building & Construction Ltd Where you can see my jobs some of them
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B&E contractors ltd
No reviews yet
Extension Builder in Marylebone, West London
B&E contractors is a well established family run business with highly qualified staff within all trades needed within the building and home renovation sector
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GNK Home Makeover
Rating: 5 out of 5
Extension Builder in Marylebone, West London
We are a team of professionals who offer competitive prices, 3D visualisation, design guide, CAD plans, materials supply, professional advice and project management. Contact us for a free quote. We have great references.
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Latest review:
Kitchen Fitting- 24 Oct 2016
Kris, Gustav and their team have been absolutely amazing, cannot praise them enough. First of all - the job ended up being a lot larger than initially thought- as decided to replace old ceilings and flooring, walls -everything was uneven to start with. So took everything back to 'bare bones' and pretty much built it up again as a new house. New electrics, water pipes, completely new kitchen and bathroom. I really appreciate they were very straightforward with the estimated costs from the beginning - it did run slightly over budget but nothing too bad as had some contingency funds prepared. I would have hated to be quoted one price then half way through the project to discover it escalates out of control. Thankfully they are really honest and reliable. They were always easy to reach and replied any question I might have had in a timely manner. This was particularly important to me as I was between uk and us at the time so couln't be 'looking over their shoulder' so to speak. Last but not least the finish and quality of works is absolutely amazing! They couldn't have paid more attention to every little detail if it was their own home. For instance I remember last day of work when they were tidying up Gustav came back to put up door stoppers for me, completely on his own initiative. It's just a little touch but goes to show the dedication they've put into the project and care about the finished product.
NLD Construction LTD
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Hello, we’re NLD Construction LTD - a reliable construction company specialising in extensions, loft conversions, refurbishments and all general construction work. With 25 years of experience, we deliver quality results on time and within budget. Let’s get your project started!
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Latest review:
It has been a pleasure to work with Arbi and the team for my refurbishment. They have a very professional and efficient approach on all matters. The quality and reliability of the work is unmatched. Everything was completed accorded to plan and on time despite my last minute adjustments. I highly recommend the team at NLD.
Dino design Ltd
Rating: 4.8 out of 5
Extension Builder in Marylebone, West London
We founded DINO DESIGN out of a pure passion for building. We are two brothers who work together in sync and is a collaboration we're proud off, we construct roofs extensions and loft conversions to an amazing standard which can be seen in the work we do. We like to push boundaries in our field making a project built by DINO DESIGN stand out from the rest. DINO DESIGN is a name you can count on and trust to deliver your project from the paper its drawn on to the material its built from. Explore the rest of our site to learn more about what we offer, and get in touch with any questions. We specialise in: • Single & double-storey extensions • Loft conversions & dormers • Full property refurbishments • Kitchen transformations • Open-plan structural alterations • Landscaping and outdoor works
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Latest review:
Conversions - General- 22 Apr 2026
Had a fantastic experience with Dino Design for an en suite removal. They understood exactly what I wanted and were very responsive throughout, giving me daily updates about how the work was going. So happy with the result- would 100% recommend :)
K.M Home Construction
Rating: 5 out of 5
Extension Builder in Marylebone, West London
Our company deals with construction and renovation. We are professional. We ensure a high standard of our work, we keep the agreed deadlines.
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Latest review:
Bathroom Fitting- 11 Oct 2023
He was very professional and has completed the work as desired.

4.4

Top rated Extension Builders

Our Extension Builders in Marylebone, West London, are rated 4.4 out of 5 based on 21 reviews from customers like you.

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

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

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

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

Find extension builders in Marylebone, West London with MyBuilder

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

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

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

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

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

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

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

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

An extension builder in Marylebone, 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 Marylebone, 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 Marylebone, 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 Marylebone, 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 Marylebone, 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 Marylebone, West London

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

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

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

Yes, most extension builders in Marylebone, 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.