Garage Conversion Companies in Marylebone, West London

Name: Garage Conversion Specialist
Brand: MyBuilder
SKU: garage-conversion-specialist
Rating: 4.8 (51 reviews)

Easily find verified Marylebone, West London Garage Conversion Companies. Just post your job to get quotes from MyBuilder's Garage Conversion Companies in Marylebone, West 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 garage conversion specialists in Marylebone, West London

1324 Results

Sort by:

G.A.S GENERAL BUILDING SERVICES Ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
ONE COMPANY. ONE PROCESS. ONE POINT OF RESPONSIBILITY. Hi, I'm George Sora, Certified Passive House Designer and founder of RetrofitIQ powered by G.A.S General Building Services Ltd. My approach is different from traditional builders because every recommendation and every upgrade is based on proven Passive House Principles and building physics, not guesswork. Whether the problem is condensation, mould, damp, heat loss, air leakage, poor ventilation, uncomfortable rooms or excessive noise, I follow a structured process designed to identify and solve the root cause: INVESTIGATE → DIAGNOSE → DESIGN → REMEDIATE → VERIFY Using professional equipment including thermal imaging cameras, moisture meters, blower door airtightness testing, smoke tracing and ventilation assessments, I can identify hidden defects that are often missed during standard inspections. As a Certified Passive House Designer, I apply the five key Passive House Principles wherever appropriate: • Airtightness • High Performance Insulation • Thermal Bridge Reduction • High Performance Windows & Doors • Controlled Ventilation This allows me to deliver solutions that are not only visually finished to a high standard, but also healthier, more comfortable, more energy efficient and built to perform long term. Services include: • Thermal Imaging Surveys • Blower Door Airtightness Testing • Damp, Moisture & Condensation Investigations • Ventilation & Indoor Air Quality Assessments • Soundproofing & Acoustic Improvements • Internal Wall Insulation • Loft, Floor & Roof Insulation Upgrades • Air Leakage Reduction • Retrofit & Energy Efficiency Improvements • Refurbishment & Building Works From diagnosis through to completion, clients deal with one company and one accountable team. No guesswork. No unnecessary treatments. Measured. Diagnosed. Designed. Remediated. Verified.
Get in touch
Latest review:
Conversions - General- 24 Jan 2026
Very professional, communicated clearly throughout the project, high attention to detail. We were moving in in the middle of the works, while also working from home and George made sure to always work around us, prioritise things that will help us and keep things very tidy inside the house. Very knowledgeable
Mitchas Building Ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Hi!I am builder with 20 years experience,I have started my own business ,Friendly company like to offer services to you : Full home renovation,Loft conversion, Installation of kitchens, bathrooms and bedrooms,flooring and skirting ,doors,tiling,painting and decorating, General refurbishment. All work is carried out to a high standard at a competitive price.
Get in touch
Latest review:
Carpentry- 1 Sep 2020
Rytis arrived on time, and completed all work as discussed to a very high standard at short notice. He was very friendly and organised and kept me in the loop with all decisions that we needed to make. We would definitely use Mitchas building again. Thank you
Lux Development LTD
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
With a BSC Hons Degree in Construction management and having worked for larger reputable building contractors in the UK. We will Ensure you get the highest Quality of Work at reasonable Prices. Customer Satisfaction is our First Goal of any Project we Undertake. We undertake all types of construction and building projects from Painting and Decorating, Flooring, Roofing, Plastering to More Complex Projects such as extensions.
Get in touch
Latest review:
Painting & Decorating- 12 Feb 2019
He truly showed professionalism that I had struggled as a guest house operator to get from handy people. He would go out of his way to satisfy. The finished redecorated room project was a masterpiece and took a little longer than planned because of the weather but he gave it his all! I am pleased I took a chance on him as there was no review on his profile when I hired him. I would however, pay attention to work and point out issues as they come up otherwise, you will have dirt and rubbish to content with as the workers leave all the mess after work.
Samz Construction Services ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
We are a small construction firm aiming to provide high quality work. We do new built 'conversion, loft and extension, Refurbishment and all kind of building works. We can manage the building job from start to finish and help the clients with planning, party wall and structural drawings.
Get in touch
Latest review:
Conversions - General- 2 Dec 2021
Samz Construction help me to finish installing an RSJ another building company started. After three months of living in a building site, they came in like the DIY SOS team, not only installed the RSJ but leveled the floor, put up a structural wall, and fixed a few other issues around the building in a week. Really pleased with the quality of work, everything easily passed building control and Sohail did an amazing job PM the work. It's difficult to find good reliable companies to work with and I have lost a lot of money by picking inexperienced builders, but I couldn't recommend this company and the team enough!!!
Prime contractors
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Prime contractors have been in the construction industry for about 25 years which includes domestic and commercial projects. Some of the domestic projects have been double extensions, loft conversions, house refurbishments and other small internal and external works which also include flat roof and cladding. Commercial projects have been from building double extensions and demolition having worked as a supervisor and manager.
Get in touch
Latest review:
Conversions - General- 17 Apr 2026
A great experience. Work was completed quickly and to a good standard with an unexpected extra (sorting out the electrics for a light in the crawl space). Most tidy builders I have ever employed. Quick responses and good communication. I'd happily use Prime Contractors again
DE Property & Construction LTD
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
I have been a sole trader working in the building industry for around 25 years, working on a number of different projects. I have now set up my own firm, DE Property & Construction Ltd, delivering customers' dream projects at the highest standards. Please get in touch with me to learn more and to get a quote.
Get in touch
Latest review:
Joinery & Cabinet Making- 9 Dec 2024
Very impressed by Eugene's work. I hired him to build a bin shed for my front garden. He took the time to understand what I wanted and work out how he could combine the look I was after with a stable structure. I am so pleased with my new shed. Eugene is trustworthy and reliable and I will hire him for other work in the future
London Underpinning Ltd
Rating: 4.7 out of 5
Garage Conversion Specialist in Marylebone, West London
London underpinning ltd, will help you find a fast ,and very effective way in regards to building work. All the work will be done according in to all health and safety requirements. Everything will be build and done ,in friendly ,polite and professional way. We will not disappoint .
Get in touch
Latest review:
Conversions - General- 2 Aug 2020
Servet was prompt in contacting me about the job, I sent him some pictures and he prioritised my job and was able to finish my job within a couple hours. Highly recommend him.. can’t thank him enough as this is the start of my much needed room renovation.
Fox-Hound London Developments LTD
No reviews yet
Garage Conversion Specialist in Marylebone, West London
At FOX-HOUND LONDON Developments, we specialize in redefining luxury living through meticulous craftsmanship and innovative design. Based in Central London, we are committed to creating exceptional spaces that reflect elegance, quality, and enduring value. From bespoke refurbishments to transformative developments, our expertise ensures every project is completed to the highest standards, leaving a lasting impression of excellence. Our team works hand-in-hand with leading architects, designers, and highly skilled tradesmen to ensure that every detail exceeds expectations. Whether it’s a timeless renovation, a contemporary extension, or a complete transformation, we pride ourselves on delivering results that reflect your individuality while enhancing the value and essence of your home.
Get in touch
East Oakland LTD
No reviews yet
Garage Conversion Specialist in Marylebone, West London
Specialising in property renovation in London, we bring a fresh perspective to interior refurbishments in both commercial and residential spaces, promoting spaciousness, functionality, and style. Whether you are looking to rebrand your business or modernise your home, our expertise ensures that your vision becomes a reality.
Get in touch
J&J building solutions ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
J&J are a highly experienced building company with 40 years combined experience in building & construction.
Get in touch
Latest review:
Conversions - General- 5 Dec 2018
Very neat and tidy tradesmen. Job completed on time. Work ethic very professional. Job standard very good
Patrick the Builder Ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Hi I’m PATRICK from Patrick the builder end I’m very happy to the next job for you General building Brick work Block work Full Refurbishment Loft Conversion Fibreglass roof Garage conversion Dive way Patios Garden conversion & Maintenance
Get in touch
Latest review:
Extensions- 13 Mar 2022
Patrick and his team were hired to build a garden room. Reasonably priced, offers solutions to problems that might arise during building work, polite and easy to work with. He will also bring his expertise into the project and suggest different ways of doing things or using different products. Happy with the build and will definitely use him again for future projects.
Catalin Tiling Flooring
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Is your kitchen looking tired and old-fashioned? Does your bathroom need a refit? Dreaming of moving house but your flat is not selling because of wear and tear? Let us help you bring new life to your home with sparkling new tiles, polished wood floors and expertly decorated walls. Have a look at our portfolio for inspiration – we specialise in tiling, natural stones, mosaics and wood flooring and are available for painting, decorating and house repairs. Get in touch now to get a free quote.
Get in touch
Latest review:
Conversions - General- 10 Sep 2022
The most efficient tradesman I ever met. I posted a job to replace a bathtub, convert a walk in wardrobe to a new en-suite shower, some electrical jobs and tile corridors in my flat in London. Catalin was very clear in his communications, he started the job immediately as I needed it done urgently. He and his team worked very hard to finish in an astonishing time. He updated me regularly and his fees were very reasonable. I would recommend him to anyone who needs a very talented, honest and very capable tradesman. I would definitely use his services for any of my future jobs.
STUDIO20 GROUP LTD
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Studio 20 Architects is a vigorous and contemporary architecture firm based in Richmond, yet operating across London and South East England and covers all London and Surrey. We offer a full range of services including; *Architectural Services *Planning Application Services *Building Regulation Drawings *Structure Engineering Services *Extension *Loft Conversion *Project Management *Flat Conversion *HMO *Change of Use *New Build House *Interior Architecture & Design Services
Get in touch
Latest review:
Architecture- 6 Jun 2021
Nadir is just the most ideal artitech we want! He is polite, offer tips, smooth communication thru, very professional. We already ask him to work together on next project. Highly recommended to all.
Agnuss Construction Ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
We are a construction company that operates in the local area mostly, but we can also cover all the other areas of Greater London. Our Services include Extensions, Loft Conversions, Refurbishments, and basically all the aspects of building work. We specialise in residential and business projects.
Get in touch
Latest review:
Agnuss Construction carried out and completed our house renovation, kitchen extension and loft extension successfully. Elio and his father, Mario were very communicative throughout and very reliable. The works were carried out on time and on budget. I would be happy to recommend Agnuss Construction and use them again in the future.
Beam Developers ltd
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
Get in touch
Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
Ferati & Sons
Rating: 5 out of 5
Garage Conversion Specialist in Marylebone, West London
With over 25 years of experience, we provide reliable, high-quality building services across the local area. We’re known for our attention to detail, clear communication, and getting the job done right first time. We specialise in: • Extensions • Groundworks & drainage • Conversions • Structural steel work (RSJs) • Rendering • Underpinning • Plasterboarding & internal works From small improvements to full property transformations, we manage every stage professionally and efficiently. We keep sites clean, stick to agreed timelines, and make sure you’re informed throughout the project. Most of our work comes from repeat customers and word of mouth - something we take great pride in. Get in touch today for a free, no-obligation quote and friendly advice
Get in touch
Latest review:
Groundwork & Foundations- 11 May 2026
Excellent timing , communicated well explained everything clearly . Completed the job on the same day .

4.8

Top rated Garage Conversion Specialists

Our Garage Conversion Specialists in Marylebone, West London, are rated 4.8 out of 5 based on 51 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 garage conversion companies in Marylebone, West London?

A garage conversion specialist can walk you through every stage of transforming this often-overlooked space in the home.

Their services usually include:

Design consultation: Helping plan the layout and use of the converted space.
Onsite surveys and assessments: Checking the structure and suitability before work begins.
Managing planning permissions and building regulations: Ensuring your project complies with local rules.
Installing foundations and floor slabs: Strengthening or updating the base where required.
Infill of garage doors: Replacing garage doors with walls, windows, or entrances to match the new layout.
Insulating garage walls and roofs: Making the space energy-efficient and comfortable year-round.
Adding new windows and doors: Creating natural light and access points.
Electrical and heating installations: Adding power, lighting, radiators, or underfloor heating.:
Interior finishing work: Plastering, flooring, and basic joinery to prepare the space for final decoration.

Using MyBuilder’s matchmaking function, you can connect with a Marylebone, West London garage conversion company near you in no time and get the help you need with your project.

Costs of garage conversions in Marylebone, West London

Typically, a garage conversions in Marylebone, West London can cost between £13,000 – £20,000, depending on the size of the space, the scope of work, and the quality of the finish.

Many factors make up this final figure, including:

Design consultation: £300 to £800
Onsite survey and assessments: £150 to £500
Planning permissions & regulations: £200 to £1,000+ (varies)
Foundations & floor slab work: £1,000 to £3,000
Infill of garage doors: £1,200 to £2,500
Insulation (walls & roof): £1,000 to £2,500
New windows and doors: £800 to £3,000+
Heating and electrical installation: £1,500 to £4,000+
Interior finishing: £1,500 to £5,000+
Hourly labour rate: £20 to £35 per hour
Daily labour rate: £160 to £280 per day

Read more about the average garage conversion cost to help you start budgeting for your project in Marylebone, West London.

If you’re seriously considering a garage conversion, Marylebone, West London specialists will be the best source of accurate pricing information. Find your options on MyBuilder, then ask for a quote from a conversion professional with knowledge of your project specifics. Post your garage conversion job today and choose from verified garage conversion companies in Marylebone, West London.

Find a garage conversions specialists in Marylebone, West London with MyBuilder

A garage conversion can be a fantastic way to increase your living space without moving but finding the right professional makes all the difference. Platforms like MyBuilder make it easy to find and compare garage conversion companies and specialists in Marylebone, West London.

Follow a few simple steps to find the tradesperson for your job:

Step 1: Post your garage conversion job on MyBuilder for free

Describe your garage conversion project in detail, including your goals, the size of your garage, and any specific features you want to include; you can also include photographs to further demonstrate your project needs. Local Marylebone, West London garage conversion companies can then review your posting and express interest.

Step 2: Compare Marylebone, West London garage conversion companies and specialists

Once you’ve begun to receive responses, you can browse through profiles, review galleries of previous projects, and read feedback from other homeowners on our platform.

Step 3: Make your choice and start your project

Once you’ve reviewed your options, you can reach out directly to discuss your project in more depth and compare quotes to ensure the pricing is clear and competitive. You stay in control throughout the process, choosing the garage conversion company who best fits your needs, budget, and timeline.

All professionals on MyBuilder are verified at sign-up, including ID checks and skills assessments. What’s more, Marylebone, West London garage conversion companies on MyBuilder have to be confirmed as a registered business before joining the platform.

FAQs: Frequently asked questions when looking for garage conversion companies in Marylebone, West London

Do I need planning permission for a garage conversion in Marylebone, West London?

Most garage conversions fall under permitted development, but planning permission may be required for listed buildings, conservation areas, or major structural changes. You should discuss this with your chosen Marylebone, West London conversion company.

What building regulations apply to garage conversions in Marylebone, West London?

All garage conversions must meet building regulations covering areas like fire safety, insulation, ventilation, and structural stability to ensure the new space is safe and habitable.

Do garage conversion specialists in Marylebone, West London need specific qualifications or certifications?

While formal qualifications aren’t always required, specialists should have relevant experience and may hold certifications for regulated work like electrical or structural tasks.

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

Yes, reputable garage conversion companies in Marylebone, West London should hold public liability insurance to cover accidents or damage during the project, and many also carry additional cover for their work.

How long does a typical garage conversion take from start to finish?

A standard single garage conversion usually takes between 2 and 6 weeks, depending on the size of the space and the complexity of the work.

Can I live in my home while a garage conversion is carried out?

Yes, most homeowners can stay in their property during the conversion, though there may be some disruption from noise, dust, and limited access to certain areas.