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Loft conversion companies in Marylebone, West London

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Some of our top rated loft conversion companies in Marylebone, West London

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  • Loft Conversion Company in Marylebone, West London

    We are a group made of 10 -15 people. We take on any job as we have a very skilled team. I believe we lead them well and we are very experienced. We work along with Gjoka Developer (24years of experience) & AR CONSTRUCT (13 years of experience). We literally take on any project as we do all the kinds of jobs such Renovations, house extension, lofts, gardens, electrics, plumbing, roofing etc etc. Don't hesitate, getting in touch doesn't cost, we offer free advise and estimates.

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  • Loft Conversion Company in Marylebone, West London

    Loft conversion specialists

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  • Loft Conversion Company in Marylebone, West London

    P O’Brien Builders is a trusted, family-run building company with decades of experience delivering high-quality construction services across London. We specialise in home renovations, extensions, loft conversions, and new builds, offering a reliable and professional service from start to finish. Our reputation is built on quality workmanship, attention to detail, and clear communication throughout every project. Whether it’s a small upgrade or a full renovation, we approach every job with the same level of care and commitment, ensuring results that are built to last. As a family business, we take pride in what we do. With the next generation now involved, we combine traditional values with a modern approach to building, giving our clients confidence in both the process and the final result.

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  • Loft Conversion Company in Marylebone, West London

    From new builds to renovations, we provide professional construction solutions designed to meet your needs, budget, and expectations.

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  • Loft Conversion Company in Marylebone, West London

    We have over 10 years experience in the domestic construction and refurbishment. Bathroom and kitchen installation. Plumbing and electrical , tiling , painting, floor installation,painting and wallpapering

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  • Loft Conversion Company in Marylebone, West London

    Hello I am sadar Ji Construction. I take pride in my work and strive to deliver reliable and high quality service to every customer. I am detail oriented , punctual and always ready to go extra mile to ensure great results. We have skilled workers in are team and have a experience of 18 to 20 years .In new build house , roofing refurbishing loft conversion ,bathrooms , kitchen and electric plumbing ,out house , And I always focus on customer satisfaction and always aim to deliver the best results Thanks

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  • Loft Conversion Company in Marylebone, West London

    We aim to be a world class Construction Company providing efficient affordable, sustainable, cost effective services of highest level of quality. We undertake all projects, big or small and specialise in major renovations including; Extensions – Loft Conversions – Restoration & Alterations Garage Conversions – Landscaping & Patios – General Building Work Renovating a property can bring a new lease of life to your home with the feeling that you live somewhere new without having moved. Whether it's a major remodel by knocking down walls and building new ones to change the entire look of your home, to simple and subtle updates and upgrades like new floors, new doors, a modern new kitchen or a stunning bathroom, using modern materials we can help you create your ideal living space.

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  • Loft Conversion Company in Marylebone, West London

    At Dunamis Construction Limited, we offer a comprehensive range of construction and home improvement services tailored to your needs. From renovations and extensions to commercial fit-outs and bespoke builds, we ensure quality, efficiency, and precision. Our expert team delivers seamless solutions, transforming spaces with simplicity in construction, excellence in execution.

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  • Loft Conversion Company in Marylebone, West London

    OFAR Ltd was established in 2017 and is a fully insured, Companies House-registered construction company serving homeowners across London and the surrounding areas. We bring together experienced tradespeople, with each stage of your project handled by the right specialist. This gives you one reliable team and one point of contact, while ensuring every trade is completed to a high standard. We believe successful projects begin with clarity. Before work starts, we provide a detailed scope, fair and transparent pricing, realistic timelines and a written contract, so you know exactly what is included. If circumstances change, we discuss the options and costs with you before proceeding—no unexplained extras or avoidable surprises. Throughout the project, we maintain regular communication, coordinate the different trades and keep you informed about progress. We respect your home, work carefully and focus on delivering a clean, durable finish that we are proud to put our name to. Whether your project involves several different trades or a focused improvement, OFAR Ltd offers the organisation, workmanship and personal service needed to complete it properly. We are fully insured, offer warranty protection and remain accountable from the first conversation through to completion. Choose OFAR Ltd for straightforward advice, dependable project management, skilled workmanship and a building team that treats your property as carefully as you do.

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  • Loft Conversion Company in Marylebone, West London

    I have many years of experience working with different clients within the built environment with bias in residential designs. My work experience as an architect has covered small to large residential designs. My current strength is working as a Principal Designer with emphasis on health and safety while designing out fire risks

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  • Loft Conversion Company in Marylebone, West London

    we use to do any dry-lining partitions, metsec works, loft conversions, extensions, carpentry works, tiling, suspended ceilings. We have about 10 years experience. we also do roofing works in fibre glass.

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  • Loft Conversion Company in Marylebone, West London

    We are carry out all aspects of building work, including double-storey extension to simple damage repairs. Our service include : lofts, extension, construction work, windows, skylight, kitchen, bathrooms, plumbing, electrics,plastering, rendering, flooring, roofing, painting and decoration. We have many years experience and complete insurance.

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  • Loft Conversion Company in Marylebone, West London

    Hi, I'm mandeep bajaj a reliable and experienced tradesperson with a strong commitment to quality and customer satisfaction. I specialise in loft extension, driveway,garage,bathroom fitting, plumbing, tiling, etc.] and take pride in delivering high-quality workmanship on every job, no matter the size. With 10 years of experience, I have the skills and knowledge to complete your project efficiently and to the highest standards. I’m punctual, tidy, and respectful of your home, and I believe clear communication is key to a successful project. Whether you need help with a full bathroom renovation or a small repair, I’ll work with you to make sure the job is done right. Feel free to get in touch—I'd be happy to discuss your project and provide a free, no-obligation quote. --- Let me know if you'd like this tailored further for a specific trade or service.

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  • Loft Conversion Company in Marylebone, West London

    Over 10 years in construction industry, main trade carpentry. I can help you with flat pack furniture or build any kind of roof, i can make for you build in wardrobe or loft conversion (not only carpentry aspects). Always giving my best no matter how big job is. Good eye for details and problems solving. Confident and profesional.

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  • Loft Conversion Company in Marylebone, West London

    Passionate drive for the construction industry. Family-run local company specialising in roofing, loft conversion, extensions and more! From minor repairs - to a London Loft Mansard - we’ve got the solution just for you.

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4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Marylebone, West London, are rated 4.6 out of 5 based on 9 reviews from customers like you.

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What services are offered by loft conversion companies in Marylebone, West London?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in Marylebone, West London will be able to handle multiple services, ensuring your transformed loft is fit for purpose.

Some of the services loft conversion companies can provide include:

  • Full loft conversions: Complete design and build projects when structural alterations are needed

  • Dormer loft conversions: Add extra headroom and floor space with a dormer extension

  • Velux or rooflight conversions: Ideal for lofts with good existing height; minimal structural change required

  • Hip-to-gable conversions: Extend the sloped roof to create more usable space

  • Mansard conversions: A major structural change offering maximum space.

  • Loft storage conversions: Add flooring, lighting, and insulation for clean, usable storage

  • Skylight or roof window fitting: Install natural light solutions like Velux windows

  • Staircase installation: Design and build bespoke stair access to your new loft

  • Insulation, heating, and ventilation upgrades: Ensure comfort and compliance with energy standards

  • Design and planning services: Architectural drawings, planning permission, and building regulation approval

Post your job to MyBuilder and you'll be matched with loft conversion companies in Marylebone, West London who are interested and available to help. And with the reviews of past customers and the freedom to compare the quotes of similar tradespeople, all in the same place, the ball’s in your court.

Average costs of loft conversion companies in Marylebone, West London

Loft conversions tend to be charged on a project basis, rather than by the hour, as they often involve weeks or even months of work.

The cost of your loft conversion depends on a few things, including the style of loft conversion and materials you choose and the size of your property.

That being said, here are average prices for common types of conversion work:

  • Full loft conversions: £45,000–£70,000+
  • Dormer loft conversions: £55,000–£85,000+
  • Velux or rooflight conversions: £25,000–£45,000
  • Hip-to-gable conversions: £50,000–£80,000+
  • Mansard conversions: £70,000–£100,000+
  • Loft storage conversions: £10,000–£20,000
  • Roof window fitting or skylight installation costs: £1,000–£2,500 per window
  • Staircase installation costs: £2,000–£5,000
  • Insulation, heating, and ventilation upgrades: £2,000–£6,000
  • Design and planning services: £1,500–£4,000

Take a look at our guide to loft conversion costs to get a more detailed breakdown of the different options available when using a Marylebone, West London loft conversion company.

Find a loft conversion company in Marylebone, West London with MyBuilder

When you’re planning major work like a loft conversion, you’ll want to find the right tradesperson for the job. The great news is, MyBuilder has already done all the time-consuming work for you.

All you need to do is post your job on MyBuilder, completely for free, and we’ll share it with loft conversion companies near you in and around Marylebone, West London.

Step 1: Post your job on MyBuilder

Provide a detailed description of your loft conversion project, including the type of conversion you want, any structural changes, preferred materials, and your ideal timeline. Once posted, local loft conversion companies in Marylebone, West London can view your job and register their interest.

Step 2: Review and compare Marylebone, West London loft conversion companies

Browse the profiles of interested loft conversion companies. On MyBuilder, you can view photos of previous projects alongside customer reviews, compare quotes, and see the types of conversions they specialise in.

Step 3: Contact and discuss your project

Once you’ve reviewed local Marylebone, West London loft conversion companies, you can reach out to those that interest you to ask questions, clarify details, and request more specific quotes. At this stage, be sure to discuss vital aspects like planning permission, design options, and estimated timelines to ensure the company meets your requirements.

Step 4: Hire the right Marylebone, West London loft conversion company

Once you’re satisfied with their experience, quotes, and approach, you can confirm your hire and start planning your loft conversion.

You can also take a look at our loft conversion specialist hiring guide to help inform your choice. All tradespeople undergo checks at registration - such as verifying ID documents, company details, and certifications for regulated jobs and doing skill assessments - allowing you to hire with confidence.

Questions to ask local loft conversion companies in Marylebone, West London

Choosing the right loft conversion company for your job requires finding someone who understands your home and your goals.

Find out which company can share your vision by asking the following questions:

What experience do you have with loft conversions in Marylebone, West London?

A local loft conversion company in Marylebone, West London will know the types of properties and building styles common in your area, as well as the planning and building regulations that apply. Ask about similar projects they’ve completed locally.

Are you insured, and do you offer a warranty for your work?

Insurance protects your home during the loft conversion process, while a warranty shows the company’s confidence in the quality and durability of their work.

How do you handle planning permission and building regulations?

Established loft conversion companies in Marylebone, West London should understand local planning rules and building regulations. Ask how they’ll manage permissions, inspections, and compliance to avoid delays or legal issues.

What is included in your quote?

Ensure the quote covers all essential aspects of the loft conversion: structural work, windows or skylights, staircases, insulation, labour, and any additional fees. Understanding this upfront prevents unexpected costs later.

Do you manage the project from start to finish?

Some Marylebone, West London loft conversion companies offer full project management, coordinating architects, builders, and tradespeople. Others may only handle part of the conversion. Clarifying this early on helps you understand what support to expect.

FAQ: Common questions about loft conversions in Marylebone, West London

How long does a loft conversion take?

Typically, a loft conversion can take between 6 and 12 weeks, depending on complexity, planning permissions, and any structural work required. Be sure to discuss the timeline with any potential loft conversion companies in Marylebone, West London before agreeing to start the work.

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

Many loft conversions fall under permitted development, but some require planning permission, especially if you’re adding a dormer, extending the roof, or living in a listed building. A professional Marylebone, West London loft conversion company can advise and handle permissions for you.

Will a loft conversion affect my home insurance?

Yes, you’ll need to update your home insurance to cover the conversion. Inform your provider about structural changes, additional rooms, and any changes to utilities or heating systems.

Can I stay in my home during the loft conversion?

Many loft conversions allow you to remain in your home, though noise and dust are inevitable. Some Marylebone, West London loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.

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