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Loft Conversion Companies in West London

Easily find verified West London Loft Conversion Companies. Just post your job to get quotes from MyBuilder's Loft Conversion Companies in West London.

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Some of our top rated loft conversion companies in West London

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  • Loft Conversion Company in West London

    We have been in the construction business for more than 25 years ranging from general building works to new build developments. We have also refurbished large buildings in the London areas on behalf of clients and main contractors.

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  • Loft Conversion Company in West London

    Try me

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  • Loft Conversion Company in West London

    Knights Roof specialises in top-quality roofing, loft conversions, and timber work. We’re fully insured, highly rated, and committed to clean, timely work on every job. Fast-track roofing service available – because your time matters. With a focus on lasting craftsmanship and customer satisfaction, we treat your home like our own. We don’t just build roofs—we build trust. Free quotes & honest advice—every time.

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  • Loft Conversion Company in West London

    BDS is a high-end studio specialising in the Design & Build industry. We are a team of specialists designers and engineers qualifying in Architecture, Civil Engineering, Interior Design and Project Management and have years of experience in running residential and commercial projects, making sure they comply with Building Regulations, Planning Permission and local authorities.

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  • Loft Conversion Company in West London

    Working across London, IG lead and manage home transformation from concept, planning to completions. As project leaders, we assemble and coordinate our professional team- from structural engineers and contractors to specialists craftsmen and suppliers. This ensures every aspect of your project is expertly managed and maintained with cost programme. Interior Architect/Planning Application/ Building Control Application/Project management /Residential Construction and Commercial

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  • Loft Conversion Company in West London

    With over 20 years of experience in the building industry, HYS Builders Limited has the expertise to handle any project. Whether it's a small renovation or a new construction project, we have the skills and knowledge to get the job done right. From Loft conversions, Kitchen, extensions, Bathroom renovations, Refurbishing , New builds and many other different projects in order to get you your dream home. We have connections with many different tradesmen, ensuring the best prices, so you can choose your designs and we make the links in order for you to get the perfect price for your perfect home.

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  • Loft Conversion Company in West London

    Bespoke Builds by JFN delivers comprehensive building and home improvement services, specialising in loft conversions, home extensions, kitchens, and bathrooms. From full renovations to day-to-day maintenance and carpentry, we manage projects with precision, transparency, and a commitment to exceptional workmanship. We take pride in delivering reliable service, smooth project management, and quality finishes designed to stand the test of time. Your space, built better

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  • Loft Conversion Company in West London

    Hello We are a team of professional build workers with expertise in Electrics, plumbing, ground works, landscaping and much more

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  • Loft Conversion Company in West London

    Punctuality, quality works , clean

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  • Loft Conversion Company in West London

    Vincitore provides a fully comprehensive bespoke construction and renovation service for both Residential and Commercial clients in London. We provide exceptional standards and commitment to our projects. Our approach for the highest quality service is very simple – trust, competence and integrity. Vincitore Construction Ltd is a comprehensive provider of Building & Civil engineering services. Their expertise spans across various domains, including New Builds, Major Extensions, Major Refurbishment, and Property Maintenance works. Our goal is to become the top operator recognized for quality, integrity, customer support, respect for individuals, and delivering exceptional value.

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  • Loft Conversion Company in West London

    "DA Build. LTD is a construction company owned by Albert Dauti, a professional carpenter with 13 years of experience. We are committed to excellence in all that we do. We believe that on-time delivery of the highest quality projects for the best value is only part of the equation. The experience of the construction process is just as important as the results. We create positive, memorable experiences and lasting relationships because our actions are guided by our core values.We are known for our collaborative approach and problem-solving skills and working with our clients to develop a optimum build solutions to ensure best value. Our projects includes new build, loft extensions, refurbishment and summer houses."

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  • Loft Conversion Company in West London

    8 years experienced in dryliner

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  • Loft Conversion Company in West London

    If you’re looking for professional builders, make DSJ Build your first choice. We provide a professional, reliable and transparent service. We serve throughout London and the surrounding areas. We have over 30 years of experience in the building industry.

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  • Loft Conversion Company in West London

    Smart Build Group can take care of any property renovation or house extension, from complex double basement developments to a new builds. Our team have worked on Victorian and Georgian properties across London, giving them a slick new light and converting them into modern and contemporary living spaces. Our professional construction team, who come supported by a dedicated workforce, are well regarded by commercial and residential property developers we have worked with since 2008.

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  • Loft Conversion Company in West London

    We are established builders in the London area. With over 12 years experience in the construction industry, we pride ourselves on high-quality workmanship and good value for money. As contractors, we construct new buildings, reconstruct and renovate existing buildings, build extensions, covert roofs and layout new interiors. We have a reputation for delivering projects within time catering for each client and tailoring to their specific requirements.

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  • Loft Conversion Company in West London

    Everything in construction

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4.3

Top rated Loft Conversion Companies

Our Loft Conversion Companies in West London, are rated 4.3 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in 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 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 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 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 West London loft conversion company.

Find a loft conversion company in 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 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 West London can view your job and register their interest.

Step 2: Review and compare 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 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 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 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 West London?

A local loft conversion company in 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 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 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 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 West London before agreeing to start the work.

Do I need planning permission for a loft conversion in 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 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 West London loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.

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