Conversion Specialists in Marylebone, West London

Name: Conversion Specialist
Brand: MyBuilder
SKU: conversions-specialist
Rating: 4.8 (52 reviews)

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Some of our top rated conversion specialists in Marylebone, West London

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A-B-D-S 02 ltd
No reviews yet
Conversion Specialist in Marylebone, West London
REAL ESTATE DEVELOPMENT + ARCHITECTURE + ENGINEERING + CONSTRUCTION Our services provide high quality architectural and engineering solutions to projects, We set out for a meticulous and careful approach when designing and building, we believe research is a huge part when approaching complex projects and it's a key figure in the design process of anything. Our precedence is to establish a good relationship internally and externally both with in our team and with our clients, taking the vision of the existing brief and transforming it from an idea in to reality. We believe design is achieved through concious observations and careful planning, not forgetting determination. We value our work in satisfying our clients and resolving problems. High standards of presentation and organization design skills is something which reflects our work ethics and succesfully drives our projects forward. We are a practice whose primary principles are to be resourceful, problem solving and effective in presenting valuable solutions to our clients.
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Prime Construct Ltd
No reviews yet
Conversion Specialist in Marylebone, West London
Prime Construct Ltd are a Building Contractor in South London. Company Founder, Sam, set up the company having worked for a number of years at a large commercial developer in London. As a team we have a wealth of experience delivering projects from initial concept through to completion. As a small Contractor we provide great attention to each Client, to deliver high quality projects on time and budget. We look forward to working with you soon!
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Blueline Enterprise Limited
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Blueline Enterprise is a family run firm specialising in high quality refurbishments, extensions, conversions and new builds. We have undertaken various projects through professional architects and private clients. We a reputable building construction firm based predominantly in North West London.
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Latest review:
Blueline completed the work to the exact high standard i was hoping for, while remaining on budget and estimated timescales - the three things that were most important to us! They were punctual, practical, knowledgeable and willing to give advice when either needed or when something could potentially be improved. They were always available to talk through what was happening at every stage of our job, with any complications arising, and importantly solutions to any problems. They knew their stuff and got the job done without any hassle either. They even came back after the job was finished to shift some pipework which i had an extra requirement for. The best feedback i could give is that we will go straight to them for any work we require in the future, and have already recommended them to friends.
CIF Builders
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
We are family run business and have been in the trade since 2001. Our professional team will always give the best they can to achieve optimal results and most important for us are the finishing details and customer satisfaction. We can provide a range of different services from conversions, to extensions, bathroom and kitchen fittings and full restoration.
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Latest review:
Conversions - General- 29 Jul 2015
Found John to be extremely helpful in giving ideas for problems which came up. Would Highly recommend them, they were very happy to come back and sort out a few snags even after full payment was give. When a wall was been taken down a lot of dust and mess was created as you would expect and we came home to the guys mopping the floor to try and tidy everything up! Other positives were how flexible they were with working times such as early/late on weekends and evenings in the week. Can't recommend them enough, great price and it felt like they treated the job as if it was in their home. Will use on our next project for sure.
James Gartlan
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Irish construction company with 10 years experience in many aspects of building work. Specialist in new build homes, offices ,home refurbishments, extensions, conversions & garden office/ cabin builds.
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Latest review:
Conversions - General- 6 Nov 2019
Really pleased with the work and will definitely work with James again in the future. Really consistent work and great communication, quick turn around and really flawless level of professionalism. Very clean and respectful of the office environment. would recommend 10/10
Maven Heating Ltd
Rating: 4.4 out of 5
Conversion Specialist in Marylebone, West London
We specialise in Gas heating & plumbing Boiler installation Unvented hot water cylinder Underfloor heating Full central heating installation We will beat any genuine gas safe engineer price.
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Latest review:
Gas Work- 12 May 2018
Great price and quality
J.C WARD LIMITED
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Hi, we are a family run business based in East London. We specialise in all aspects of construction. We have good tradespeople we work closely with so everything from taking a project out of the ground to all final fix and everything in between. Please get in touch if you require any further information or would just like to get some advice on your project no matter how small it may seem. Thanks, Scott
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Latest review:
Handyman- 5 Aug 2020
Scott was extremely helpful, efficient and professional. His communication was excellent and he kept me updated at every stage. A superb job - I am delighted with the work he did. I would thoroughly recommend this company to anyone. Thank you!
Adam Renovations Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Adam Group Ltd is an established residential construction and development company, incorporated in 2010, specialising in high-quality refurbishments, extensions, loft conversions and new build projects across London and the South East. We work with homeowners, investors and local authorities on projects ranging from £150,000 to £3 million, covering everything from full house refurbishments and structural reconfigurations to large-scale extensions, loft conversions and ground-up developments. Since inception, we have successfully delivered over 250 projects, building a strong track record for reliability, quality and consistent delivery. In 2025 alone, the company achieved a turnover of £4.5 million, reflecting both our capacity and the level of projects we undertake. Our team provides an end-to-end service, including planning coordination, structural works and full construction delivery. We are experienced in working alongside architects, engineers and local authorities to ensure projects run smoothly and comply with all regulatory requirements. We maintain a 4.9-star rating on Google, with the majority of our work coming from repeat clients and referrals — a testament to our professional approach, clear communication and attention to detail. If you are planning a refurbishment, extension or new build and want a contractor with a proven track record and the capability to deliver complex residential projects, we would be happy to discuss your requirements.
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Latest review:
Loft Conversion- 5 May 2017
Artjom and his team have done a wonerful job on our loft conversion and house renovation. We are very pleased at the transformation. Although not the cheapest quote we obtained, they were highly professional, kept the noise down and cleaned up after themselves. We also added several other jobs to our initial quote and they undertook these as requested. It is important to keep a record of everything you ask to be done. They worked very fast and were able to complete everything within 2 months - it helped that our house was empty at the time, so they didn't have to deal with us living there at the same time as the works were being carried out. Overall, I would highly recommend Adam Renovations for any building works you need done to your property.
Mels Construction Solutions
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Welcome to Mel’s Construction Solutions, specialising in loft conversions and house extensions. With 15 years of experience, we have gained extensive knowledge and expertise in providing top-quality services to our clients. We offer full building services for Loft Conversions Extensions Refurbishments Bathroom and Kitchen instillations All our work is guaranteed and done to the highest standards with competitive prices given.
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Latest review:
I would highly recommend Meli and use his service again. He is reliable, friendly and extremely personable. Meli saved time and cost by explaining what could be done better. Very talented all rounded experience. He’s a great contractor and I am very satisfied with his work. Thank you Meli!
Sovereign Building and Roofing
Rating: 4.9 out of 5
Conversion Specialist in Marylebone, West London
Sovereign Roofing and Building Contractors are a local traditional family run professional company covering all various different projects ranging from small repairs to new developments. all our work is carried out in the same professional manor, we believe feedback speaks a lot for our company please read our reviews happy to answer any questions, Regards Sovereign
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Latest review:
Conversions - General- 21 Dec 2020
Excellent work. Communication was great, always available to as questions and we are very happy with the work.
Haynes Building Services
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Haynes Building Services are a trusted and professional company providing a full building service dedicated to the highest standards in every aspect of performance with over 30 years experience. We maintain a high level of repeat business through our ability to respond efficiently to clients wishes.
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Latest review:
Bathroom Fitting- 28 Nov 2020
Michael and his team did an excellent job of of fitting my new bathroom. They also redecorated my hall, stairs and landing. So pleased with the result. They were always polite, punctual and very helpful. Would definitely use them again.
Metropol
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
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Latest review:
Restoration & Refurbishment- 12 Jan 2026
amazing experience, they did a really really good job and were reliable, on time, had a good attitude. would highly recommend.
Belburn
No reviews yet
Conversion Specialist in Marylebone, West London
Masters Degree qualified construction engineer working to bring higher quality to the construction industry. 20 years experience in construction. Complete conversions & renovations undertaken, whole process management. No job is too small to be considered.
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MPS Building Services
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
MPS Building Services is a company providing a professional service to the construction industry and our endless client base,providing a high quality service to our clients all over the south east of the country.the service we provide is a professional,friendly,clean and reliable service.
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Latest review:
Conversions - General- 22 Jan 2025
I obtained a few builder quotes for a garage conversion/house renovation and all the quotes were about the same. I decided to give the work to Paul as he came across as someone with genuine experience. His quote was very detailed and offered additional services which the other builders had not included on their quotes such as tiling, bathroom fitting, hanging doors etc. You should probably check everything that has been included item by item so that you don't make any assumptions as this was something I did. I found the team to be very efficient and turned up every morning without out fail. I was able to keep in good communication with the team either face to face, email or on the mobile. Materials were included in the quote and each day Paul would have organised their delivery in advance so lorries would turn up with pallets of bricks, cement, timber etc. I recommended them to a neighbour and she was satisfied too. I definitely would recommend Paul and the team!
SVR CONSTRUCTION
No reviews yet
Conversion Specialist in Marylebone, West London
I have 15 years of experience in North London working for an construction company and now I am starting on my own business for that i don’t have any reviews The company ii worked for they are doing houses for most footballers in Hadleywood
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Two Brothers Refurbishment
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
At Two Brothers Refurbishment, we don’t just build and renovate — we transform spaces, improve lives, and bring our clients’ visions to life. Built on trust, craftsmanship, and a strong work ethic, our company has quickly earned a reputation for quality and reliability in the UK construction and refurbishment industry. Two Brothers Refurbishment is a family-rooted construction company with a passion for building done right. With years of hands-on experience in a wide range of projects, we have built a team of skilled professionals — carpenters, builders, electricians, plumbers, and decorators — who share one goal: to deliver top-quality work, every time.Our mission is to provide comprehensive construction and renovation services that are tailored to the unique needs of every client. We aim to create functional, beautiful, and lasting spaces while maintaining the highest standards of professionalism, communication, and care. We specialise in a broad spectrum of residential construction services, including: -Home Extensions & Loft Conversions -All aspects of structural work -Full Refurbishments & Renovations -Kitchen&Bathrooms -Renovation&Refurbishment -we can Create/Design/Build -All insurances in place
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Latest review:
Conversions - General- 29 May 2025
The team did a good job, shown very professionalism throughout. I would highly recommend if anyone looking for building works. Thank you Saby and your team for completing the work on time.

4.8

Top rated Conversion Specialists

Our Conversion Specialists in Marylebone, West London, are rated 4.8 out of 5 based on 52 reviews from customers like you.

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What types of services are offered by conversion specialists in Marylebone, West London?

Conversion specialists are the people you need to make underused areas of your home practical and fit for purpose.

If you need to increase your living space and improve its functionality, a conversion specialist can help with:

Loft conversions: Turning attics into bedrooms, offices, or storage spaces.
Garage conversions: Transforming garages into living areas, studios, or utility rooms.
Basement conversions: Creating usable living spaces in previously underutilised basements.
Barn and outbuilding conversions: Updating detached buildings for modern use, such as guest accommodation or home offices.
Internal reconfigurations: Knocking through walls, creating open-plan layouts, or combining rooms.
Commercial-to-residential conversions: Adapting offices or shops into homes.

No matter the tasks of your conversion project, MyBuilder makes it easy to find local conversion specialists near you. Simply post your job and receive responses from conversion professionals in Marylebone, West London who are available to take on your project.

Costs of conversions in Marylebone, West London

Conversion costs in Marylebone, West London vary widely depending on the type of work, the size of the space, and the materials involved.

As a rough guide, here’s what you can expect to pay for different conversion tasks:

Loft conversions costs: £40,000–£65,000+
Garage conversion costs: £15,000–£25,000
Basement conversion costs: £60,000–£120,000+
Barn and outbuilding conversions: £30,000–£80,000+
Internal reconfigurations: £5,000–£20,000
Commercial-to-residential conversions: £50,000–£150,000+
Hourly labour rate: £20–£35 per hour
Daily labour rate: £160–£280 per day
Demolition and removal costs: £500–£5,000+

Note: Material costs can vary widely depending on the type of conversion and the finishes you choose. For example, structural steel, roofing, and high-spec windows can increase costs significantly, while insulation or interior finishes may be more moderate. Discuss this ahead of time with any potential conversion specialists to ensure you get the right quote.

If you’re seriously considering a conversion for your home, Marylebone, West London conversion specialists will be the best source of accurate pricing information. Find your preferred conversion specialists near you to ask for a quote tailored to your project specifics.

Find a conversions specialist in Marylebone, West London with MyBuilder

Converting part of your home is a big investment, so finding the right tradesperson is key to ensuring a smooth and successful project. MyBuilder connects you with verified conversion specialists in Marylebone, West London, giving you control over who you hire and how you manage your project.

Step 1: Post your job on MyBuilder for free

Start by describing the type of conversion you need on our platform. Give as much detail as you can! You can also include images to give tradespeople a better idea of the work you would like completing. Once posted, your job is shared with conversion specialists in Marylebone, West London.

Step 2: Review and contact Marylebone, West London conversion specialists

You can browse company profiles to find the right Marylebone, West London conversion specialist for you, check out previous work, and read genuine customer feedback. Once you’ve decided on some potential conversion specialists, you can reach out to discuss the project details further and request detailed, itemised quotes that outline labour, materials, and timelines, helping you compare options clearly before making a decision.

Step 3: Make your final choice

Now that you’ve gathered the information and received detailed quotes from Marylebone, West London conversion specialists, you can easily make your final choice in just a few clicks.

By comparing prices, timelines, and approaches, you stay fully in control of who you hire and how your conversion is carried out. Once you’ve selected the right tradesperson for your project, you can arrange a suitable date and time, and get your conversion underway!

MyBuilder verifies each tradesperson when they join by checking ID, company registration, and relevant qualifications for regulated industries. Post your conversion job on MyBuilder today and start receiving responses from interested conversion specialists in Marylebone, West London.

FAQs: Questions about Marylebone, West London conversions

How do I find available conversion specialists in Marylebone, West London?

You can find local conversion specialists through platforms like MyBuilder, where you can compare profiles, reviews, and quotes to help you choose the right professional for your project.

How long does a typical home conversion take?

Most home conversions take between 4 and 12 weeks, depending on the size, complexity, and type of project. Larger structural changes or regulatory approvals can take longer.

Are conversion specialists required to have insurance in Marylebone, West London?

Yes, reputable conversion specialists typically hold public liability insurance to cover potential damage or accidents during the project. Some may also carry employer’s liability or professional indemnity insurance, depending on the work.

Do conversion specialists in Marylebone, West London offer warranties or guarantees on their work?

Many conversion specialists offer warranties or guarantees for workmanship and structural integrity, though the terms and duration vary by company. Always confirm what’s included before hiring.

Can a conversion specialist in Marylebone, West London help with planning permission and building regulations?

Yes, many conversion specialists can advise on planning permissions, submit applications, and ensure your project complies with building regulations, although some homeowners choose to handle these steps themselves.

How far in advance should I book a Marylebone, West London conversion specialist?

It’s best to book at least 2–4 months in advance, especially during busy periods like spring and summer. Specialist conversions may require even longer lead times.

Can conversion specialists handle design as well as construction, or will I need an architect too?

Some conversion specialists offer design-and-build services, managing both stages of the project. For more complex conversions or structural changes, you may still need to involve an architect or structural engineer.