Conversion Specialists in Marylebone, West London

Name: Conversion Specialist
Brand: MyBuilder
SKU: conversions-specialist
Rating: 4.8 (50 reviews)

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

1323 Results

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Bold building
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Bold Building Ltd is a professional construction company with extensive experience in residential and commercial construction, refurbishment, and renovation projects. We are committed to delivering high-quality workmanship, completing projects on time, and maintaining the cleanest and safest working environments. Our skilled and dedicated team manages every project with precision, transparency, and attention to detail—from initial planning through to final completion. We use trusted materials and modern construction methods to ensure long-lasting results that meet current industry standards. At Bold Building Ltd, customer satisfaction is at the heart of everything we do. We pride ourselves on honest pricing, clear communication, and reliable project management, providing our clients with a smooth, stress-free experience and results they can trust.
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Latest review:
Decking- 15 Jun 2026
Arash and Ramin worked on my job. They were very professional and pleasant mannered. Arash asked me about a lot of things prior to the jib and during the job making sure that my needs were met and handled the job in a professional manner. The work was amazing. The jobs was completed with no issues. My mum loves the decking and now she can go out from the patio straight onto the decking. We love the work and enjoyed the banter with Arash and Ramin. Top guys. I will definitely do more work with these guys.
captainboiler
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Welcome to Captain Boiler plumbing and heating services. We are a family run business with over 15 years experience between us. We do not use any sub-contracted gas engineers. We take pride in our work and aim to provide our customers with a safe, efficient,reliable and competitive service. Customer satisfaction is our highest priority .
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Latest review:
Gas Work- 20 May 2026
Husseyin completed the job without any fuss. Hedid everything he had promised and I will use him again.
AAA construction
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
We carry out all jobs to the highest standard, at a very competitive price whilst aiming to finish all work perfect and leaving no mess. We do both Traditional brush/roller painting and spray painting. Airless spray paint finish is the most clean and perfect finish you can get. We also paint cabinets/doors/furniture and all wood works with HVLP sprayer to give a smooth, clean and perfect finish.
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Latest review:
Thank you guys excellent job I’m really happy with the out come il recommend this company to all my friends and family’s 👏
GMC LONDON RENOVATIONS LTD
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
GMC LONDON RENOVATIONS its specialist in New Builds , Home Extensions , Loft Conversion , Home Renovations and Refurbishment we are committed to providing the best quality workmanship and service. We have experience over 10 yrs in Construction industry Residential and Commercial, we completed successfully many projects during the years where quality was our No1 priority . We holding Public Liability Insurance for customer Peace of Mind and Safety certificates for Gas and Electrical work installation. GMC LONDON RENOVATIONS will deliver from start to finish your project without hassle or delays . We are professionals and enthusiastic young team members.
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Latest review:
Bathroom Fitting- 24 Oct 2025
We had 2 bathrooms refurbished at the same time by Romulus and his team over a 4 week period. Both bathrooms were completed on time and on budget. We were looking for 2 functional bathrooms, but ended up with 2 very high spec bathrooms within our original budget, and couldn't be happier with the high level of service and professionalism by all his team. We will now move forward and have his team refurbish our kitchen.
DR Roofing and Building
Rating: 4.9 out of 5
Conversion Specialist in Marylebone, West London
Multi skilled in all aspects of roofing and building including extensions and loft conversions.Able to deliver a high standard of work and customer care.Hard working and very reliable.Over 20 yrs of experience in the roofing and building industry.All qualified and experienced people that work through this company.All new work can be guaranteed,References avalible on request.
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Latest review:
Roofing (Pitched)- 31 Aug 2020
Very satisfied with the roof repair.
S & S Builders
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Hi my name is Stephen and I have 30 years building experience specialising in extensions and loft conversions I do 1 job at a time and I am on site every day. I have extensive knowledge of structural engineering I also carry building insurance .and i am a member of the National federation of builders.
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Latest review:
Conversions - General- 29 Sep 2018
If you are looking for a caring and conscientious builder then look no further than Stephen. Not only is he on your side for your project and budget, he gets the job done with absolute attention to detail. He works incredibly hard and is not satisfied till you, the client, are happy. He has a photographic, encyclopaedic memory for all things building and structural. He, with his extensive experience, is worth more on your project than any architect plans or drawings. Not only is he damned good at what he does, he’s polite and thorough. He also has a fantastic team that he keeps a close eye on at all times. There are no loud radios or requests for coffee. His team have a fixed break/lunch, bring their own supplies and I’m embarrassed to admit, leave your house tidier and cleaner than when they arrived - even when doing excavation/structural work! I offer only one word of caution, once Stephen and team are in, you won’t want them to leave, and you will start asking him to do all those other building jobs you never knew you wanted done! You will be very fortunate if you can secure him for your project. You can complete confidence in him, his team and their work.
Independent Building Services Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
We are an experienced construction company based in west acton. Quality work and reasonable prices, building maintenance, full renovation, extensions and loft conversions, design and advise plus much more . We will beat any prices and 100% customer satisfaction guaranteed.
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Latest review:
Conversions - General- 11 Jul 2025
Habib and his team were outstanding. Habib is a lovely human being who cares about you and your job. He is extremely personable and reliable, and always has your interests at heart. We had a huge project and Habib took care to make sure every stage was perfect. The work ethic and standard of his jobs are exemplary - 100% recommend!
Wayland Construction
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
I undertake all aspect of building work whether it be a small installation or a large project.Every contract undertaken I treat it as my own project. I endeavour to leave my client totally satisfied as I approach every job with professionalism and quality. Looking forward to helping you with any of your building needs. Stay safe and have a nice day
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Latest review:
Electrical- 5 Mar 2021
Mo was absolutely amazing! The attention to detail and work ethic is unmatched. I am absolutely happy with the finished job. Very reliable will definitely recommend and use his services again.
Lux-Construction
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
We specialise in private residential projects, offering project managed extension and conversion services, be it single or multiple storey, loft, ground or basement extensions, with all services provided under one roof. Our work style is marked by honesty and simplicity, processes are straightforward, with communications clear and efficient. Although we are new to this builder search platform and have got no feedback, we were vetted on other platforms and full details will be provided.
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Latest review:
Restoration & Refurbishment- 28 Aug 2018
We had the very intricate loft reconfiguration done with extra big size window installation and full refurb on our recently bought Victorian end of terrace. It was a great experience all along, starting from the quantity surveyor detail level quote provision to the sign off and snagging. I was pleasantly surprised by the attention to detail with what Lux Construction delivered the works, and project manager Jonas professionalism was exceptionally high from my personal experience. Upon such a great experience I have been recommending you to all our neighbours when being asked who did such a perfect job for us. Thank you once again.
REA Construction LTD
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
The company’s success is built on the strong belief of quality work, attention to detail and on-time completion. Rea Construction Ltd has an in house team of builders, architects, and interior designers with all the relevant skills and qualifications which enable us to offer a fully comprehensive design and build service. Get in touch today for a free on site consultation.
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Latest review:
Extensions- 8 Dec 2017
We couldn’t be happier with the professionalism and quality of workmanship from REA Construction. The project was delivered within budget and on time. We lived in the property during the work and we, our neighbours and the site were always treated with the utmost consideration. There were almost no hitches and, when they did occur, they were dealt with immediately and thoroughly. Our project team, led by Kristjan and Besi, were universally hardworking, organised and produced work to an excellent standard. Communication is great, the people are wonderful. Renato was someone I felt I could trust from the moment I met him and he never let us down. He and everyone at REA genuinely care about what they do and that their customers have a happy experience. We certainly did and would have no hesitation recommending them to others.
Of Here Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Of Here Ltd is a registered and insured design/build firm based in London, UK. The founder and director, Laura Stargala, is a licensed architect in the USA, living in London, UK. She has many years of experience working for architecture firms in the USA, Switzerland, Chile, Japan, and the UK. Laura can help you work through your design by creating early concept ideas with you and eventually drawing technical drawings for permits and contractors. She is experienced in residential, commercial, landscapes, renovations, and new-build. Laura also has experience in construction and is fluent in working with stone. She is a certified stone waller through the Dry Stone Walling Association. Please don't hesitate to reach out if you'd like to work on a project together.
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Latest review:
Laura worked for me over the summer on a large dry stone retaining wall. She was a diligent worker, not put out by the heavy work of stripping out or the energy sapping heat. She showed a good level of skill when it came to laying stone and put together a strong and aesthetically pleasing wall.
Samul Construction LTD
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Estimate Prices From: * Loft Conversion £50k(labour+materials+scaffolding) * Home Extensions £3-4k per square metre * Basement £3-8k per square meter (labour+materials). * Bathroom refurbishment £8k (labour).
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Latest review:
Conversions - General- 15 May 2019
The wall was removed quickly and efficiently by Janusz and Janusz. There was little damage to surrounding areas as we'd discussed before the job began. The room (as well as the communal corridor in the apartment building) was well cleaned after.
Florentin Stoica
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
I charge 60£ for a home visit and quote. This is to cover for my time and the website fee attributed to each add. If the jobs goes trough, this cost will be included in the final price. Hi, I am Flo, your local handyman with a decade plus of experience. Putting up a frame or building up an house extension, I can accommodate both and everything in between. If you have a project in mind i have a decade plus of experience that could come in handy so let’s get in touch. Yours sincerely, Florentin.
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Latest review:
Carpentry- 11 May 2026
Did a great job, would highly recommend
Tafix ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Hello, Tafix Ltd is specialised in carpentry and joinery jobs. We have a well-earned reputation for being punctual, reliable and completely trustworthy. Our team of skilled workers is always happy to help you with your project.
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Latest review:
Conversions - General- 10 Jun 2020
Brilliant attention to detail. Knows his craft really well. So pleased with the work. Kamil explained the process in detail and informed me of any issues that arose so we could work on solutions together. It was a tricky job as a lot of unknowns before work started. The finish was so much better than I was expecting and on budget.
Cappy Construction Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Cappy Construction are specialists in the construction and renovation of residential and commercial properties. We pride ourselves on delivering outstanding quality and design for leading architects and private clients across the Capital, Hertfordshire, Buckinghamshire and Bedfordshire.
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Latest review:
Michael and his team provided the highest of quality service. From the site staff to the management staff everyone was helpful and worked very hard, everything ran smoothly with great communication and the result was excellent. The work undertaken was completed to an exemplary standard, I have recommended Cappy Construction to many other people looking to get work done.
Frameworks Construction
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Hi, I am a city and guilds qualified carpenter experienced in both 1st and 2nd fix carpentry. I subcontract for larger companies doing refurb, conversion and extension work, and take on smaller jobs for private individuals for things like doors and mouldings etc. Every job is important to me, small or large, and I take great pride in my work. I deliver fairly priced and professional results to suit each customer's needs.
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Latest review:
Carpentry- 17 Dec 2021
Joe was great - very friendly, professional, flexible and did a great job cutting and installing skirting in a tricky bedroom - would definitely use again.

4.8

Top rated Conversion Specialists

Our Conversion Specialists in Marylebone, West London, are rated 4.8 out of 5 based on 50 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.