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Some of our top rated loft conversion companies in London

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  • Loft Conversion Company in London

    We partner with busy homeowners and property developers, offering architectural solutions that bring value and style to every project. Whether you’re building a new home, garage conversions, flat conversions, basements, loft conversions, outbuildings, planning applications and building regulations we take care of every step, so you can focus on enjoying the results.

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  • Loft Conversion Company in London

    House repairs, extensions, construction.

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  • Loft Conversion Company in London

    Been running business and working for myself for last 8 years, set up company in 2015 and We specialise in loft conversion, kitchen extensions, house refurbishment and new build. I have quite impressive portfolio already whats been build and looking at my builder as opportunity to expand even more. We undertake most building work including •Kitchen fit •Bathroom suites •Loft Conversions •Rear extensions Any service you require we can complete to your desire... Just Ask...

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  • Loft Conversion Company in London

    Visionary Design and Build is a leading design and construction firm based in London, UK, renowned for its innovative approach and commitment to excellence. Specializing in both design and construction services, Visionary offers comprehensive solutions for residential, commercial, and industrial projects. With a team of talented architects, designers, engineers, and craftsmen, Visionary brings creative vision and technical expertise to every project. They work closely with clients to understand their unique needs, preferences, and budget constraints, ensuring that each design reflects their vision while maximizing functionality and sustainability. From concept development and planning to construction management and project completion, Visionary Design and Build oversees every aspect of the building process with meticulous attention to detail and uncompromising quality. Their dedication to delivering exceptional results has earned them a reputation as one of London's most trusted design and build companies, consistently exceeding expectations and transforming visions into reality.

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  • Loft Conversion Company in London

    We are onest builders, quick and reliable jobs, new on my builder but with lots of experience on the trade, looking for work, we do all kind of refurbish jobs, decorating, carpentry, basic plumbing and electric, new bathrooms or kitchens, back or loft extensions ,landscaping and much more We offer guarantee for our work. Everything seen on the pictures is 100% our work and we have loads of other pictures

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  • Loft Conversion Company in London

    M&A Refurbishment prides itself on the quality of the service it provides. Customer relations are key to us as we understand we are entering your home, therefore we aim to carry out the work to a high standard, quickly and in a clean and tidy manner.

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  • Loft Conversion Company in London

    I work with other builders running jobs also doing general building work myself. Loft and ground extensions, knocking internal walls down, putting in steels, plastering work and roofing work.

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  • Loft Conversion Company in London

    Hi, I'm Kory, Director of Ten Roofing Ltd. We’re an established roofing and building company trusted throughout Essex and the surrounding areas, with a reputation built on quality workmanship, reliability and doing things properly. I’m a roofer by trade and take genuine pride in what we do. Ten Roofing Ltd is accredited by the Guild of Master Craftsmen, fully insured and VAT registered, giving our customers confidence that they’re dealing with a professional, established company. We cover all aspects of roofing, including: • Complete re-roofs • Traditional mortar work • Slating & tiling • Lead work & flashing • Roof repairs & maintenance • Flat roofing • Fascias & soffits • Guttering • Dry ridge & dry verge systems • Roofing carpentry & structural timber work We also undertake bricklaying, carpentry and general building work. Over the years I’ve built a strong network of skilled and trusted tradesmen, and we regularly subcontract and coordinate additional trades through Ten Roofing Ltd. This means we can take on larger projects and manage multiple aspects of a job without compromising on the quality of the work. Whether it's a small repair, a traditional roof restoration, a complete re-roof or a larger building project, we have the experience, trades and contacts to get it done. We take health & safety, workmanship and customer service seriously, and we believe our reputation is everything. A large amount of our work comes through recommendations, repeat customers and contractors who trust us to deliver. No cutting corners. No unnecessary complications. Just proper workmanship from start to finish. Ten Roofing Ltd — roofing and building work done properly.

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  • Loft Conversion Company in London

    Dear customer We doing everything with very proficiency and easy way where we can explain everything to clients very well We managed our all work and sites comples on time and with in our client budget Achieving 100 % of success rate Best wishes for all client

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  • Loft Conversion Company in London

    We are construction company based in London,specialising in home improvement and renovation works. Our team of plumbers, electricians and carpenters work together to provide you with a hassle-free service from start to finish.

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  • McKees Design & Build is a family run business with over 25 years experience in creating beautiful functional spaces that you will enjoy for years to come. Our dedicated team specialises in a wide range of services, including kitchen and bathroom refurbishments, stunning extensions, and seamless garage and loft conversions. We also offer expert painting and decorating as well as outdoor services like paving and fencing. We take pride in our attention to detail and dedication to customer satisfaction, ensuring a smooth and enjoyable refurbishment process from start to finish.

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  • Loft Conversion Company in London

    GNC Construction is a construction company focused to satisfy and serve clients wich have residential and commercial projects. We deliver high-quality building projects across London and beyond . We have years of domestic and commercial experience under our belt, no job is too big or small. We can build anything, whether you need your property renovated or an extension added on, whether you need to modernise and enlarge your office building you can count on us.

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  • Loft Conversion Company in London

    VB development here to make your dream house.

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  • Loft Conversion Company in London

    Welcome to sharry crown Roofing Ltd, your premier choice for top-notch roofing and construction services in the heart of Hounslow, London. Based in North Hyde, we proudly offer a comprehensive range of services, including expert roofers, skilled extension builders, and specialists in loft and garage conversions. Our commitment to quality and customer satisfaction sets us apart in the bustling London trades scene.

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  • Hello, We are a reliable construction company specialising in commercial & high end residential fit - outs & refurbishments. Our team is made out of skilled tradesman, reliable, experienced & knowledgeable. You'll have one reliable point of contact throughout the works and all the support needed. We take great pride in our work ethic and the quality of our finishes. New to "my builder", as opened an account to fill gaps between our normal projects but can give many references on request.

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  • Loft Conversion Company in London

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4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in London, are rated 4.6 out of 5 based on 10 reviews from customers like you.

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What makes hiring loft conversion services in London unique?

Loft conversions in London are a smart move because space doesn’t come cheap in the capital. Turning your empty attic into a proper bedroom, home office, or study feels like adding an extra floor without moving house or going into your garden space.

What makes London loft conversion services different:

  • Party wall agreements: You’ll often need a party wall agreement for loft conversions on terraced homes in areas like Islington or Clapham. A loft conversion company can help you get your neighbours’ approval.

  • Conservation area rules: Older properties in conservation areas require strict heritage consents, which can affect how a loft is designed or how windows are added.

  • Urban access challenges: Congestion zones, narrow streets, and parking restrictions, especially in central London, can complicate lifting materials and installing scaffolding for your loft.

There are a few things to consider when you are hiring a London loft conversion. But you don’t have to worry. Just post your job on MyBuilder today, and loft conversion companies near you can use their on-the-ground knowledge to discuss the specifics of your project.

You can also review their profiles, check previous work, read customer feedback, and compare quotes before deciding who to hire.

What services are offered by loft conversion companies in London?

Loft conversion services in London are designed to take the hassle out of turning your unused attic into a practical, everyday space. From early design ideas to final finishing touches, a good loft conversion company can guide you through every step.

The most popular loft conversions homeowners choose:

  • Full loft conversions: A complete design‑and‑build package when your loft needs proper structure work, stairs, and all the new fixtures to turn it into a real bedroom, office, or living area.
  • Dormer loft conversions: A dormer extension juts out from the roof to give you more headroom and floor space. This is perfect if you want a usable room without changing the whole roofline.
  • Velux or rooflight conversions: Great for lofts that already have decent height, this option adds roof windows and basic finishes, so you can quickly gain a bright, fresh space with minimal structural work.

No matter your loft conversion needs in London, just post your job on MyBuilder today.

Then, loft conversion companies in London who specialise in your project can help. For more elaborate projects, like loft apartments, you can also easily bring in additional tradespeople like electricians in London, plumbers, or joiners if your project needs them.

Average costs of loft conversion companies in London

Loft conversion services in London typically cost 10 - 20% more than in other UK cities. Even so, it’s often a smart investment because a well‑planned loft conversion can boost your home’s value while giving you the extra living space you need.

Cost breakdown for loft conversion services in London:

  • Full loft conversions: Around £45,000 - £85,000 for a standard design‑and‑build project.
  • Dormer loft conversions: Often towards the upper end of the same range, depending on how much structure and headroom you add.
  • Velux or rooflight conversions: Usually more affordable, often starting lower but rising with extras like insulation and lighting.

For a better idea of the costs, just post your loft conversion project on MyBuilder. You will hear from London‑based companies who can work around challenges like tight space and conservation‑area rules.

Or, for more information on the costs of different types of loft conversions, see this full guide on How much does a loft conversion cost in London?.

Find a loft conversion company in London with MyBuilder

Save the scrolling, and let MyBuilder do the work to find loft conversion companies near you. It only takes a few quick steps.

Step 1: Post your loft conversion job on MyBuilder

Whether you need a small renovation, or a complete new build, simply post your job on MyBuilder to find loft conversion companies in London.

Once your job is posted, it will be shared with our directory of verified London loft conversion companies who can express their interest.

Step 2: Compare different loft conversion services in London

When London companies respond to your job post, take the time to compare their profiles, previous work, and customer reviews.

You can also ask them about their availability and request quotes before making your decision.

Step 3: Hire London conversion companies with confidence

Now that you’ve got the information you need, you can make a confident decision about which loft conversion company in London to hire.

Note: All tradespeople in London who register with our platform undergo checks to give you peace of mind. This includes ID documents, company details, certifications for regulated jobs and skill assessments.

Questions to ask local loft conversion companies in London

Hiring a loft conversion company in London is a big step toward turning your home into the space you really need, and it helps to ask a few key questions to make sure you’re choosing the right team for your project.

What building qualifications do you hold?

Ask your loft conversion company in London about any professional memberships or construction‑related qualifications, such as NVQs or Level 2/3 diplomas in building trades. Proof of health and safety training, like a CSCS card, is also useful.

Have you completed similar loft conversion projects in London before?

Ask if they’ve carried out loft conversions on properties like yours, such as Victorian terraces in Hackney or mid‑rise flats in Southwark.

Looking at photos of their past loft work on their MyBuilder profile can give you a clear idea of their experience.

How do you maximise space in compact London homes?

Ask how they design lofts to make the most of limited headroom and awkward roof shapes, especially in tight terraced houses or flats, so your new room feels generous and functional rather than cramped.

How do you handle noise and disruption in dense London boroughs?

Find out how they manage noise and timing in busy areas, sticking to council‑approved hours (usually 8am–6pm on weekdays) and planning noisy tasks so they cause as little disruption as possible to you and your neighbours.

How do you handle planning permission and building regulations?

Established loft conversion companies in 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?

Make sure 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.

FAQ: Common questions about loft conversions in London

Can I live in my home while a loft conversion is being done in London?

Yes, most people stay in their home during a loft conversion in London, but expect some noise, dust, and disruption while the work is going on. A good loft conversion company will plan around the mess and keep things as tidy and manageable as possible.

Are loft conversions worth it in London in terms of added property value?

In London, loft conversions are often worth it because they add usable space without extending sideways or out the back. A well‑done loft can lift your home’s value and make it feel more spacious and modern at the same time.

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 London before agreeing to start the work.

Do I need planning permission for a loft conversion in 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 London loft conversion company can advise and handle permissions for you.

Can my house type in London be converted into a loft?

Whether you’re in a North London terrace, a South London flat, or a Victorian house in East or West London, attics in most properties can be converted into a loft. A local loft conversion company can check your roof shape, ceiling height, and local rules to confirm what’s possible for your home.

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