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Finding loft conversion companies in London can be easy and hassle-free. Just post your job on MyBuilder today, and connect with available loft conversion companies in London, from Wimbledon to Greenwich.

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Some of our top rated loft conversion companies in London

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  • Loft Conversion Company in London

    Hi there, I have over 20 years experience in building extensions, landscaping and bathroom refurbishments.

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  • Loft Conversion Company in London

    An experienced and dedicated builder with over 10 years of hands-on experience in residential, commercial, and industrial construction projects. Proficient in a wide range of building techniques, including loft conversion, house extension, house renovation etc, with a focus on quality, safety, and client satisfaction

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  • Loft Conversion Company in London

    FAIZ Construction Ltd is a Gas Safe registered company. We are qualified gas engineers and plumbers with full public liability insurance. Our team of experienced professionals delivers high-quality workmanship, reliable service, and a commitment to getting the job done right first time. Gas services: boiler installation, servicing, repairs, and safety checks. • Plumbing: installations, repairs, bathroom and kitchen plumbing, leak detection. • Emergency call-outs: rapid response for urgent gas or plumbing issues. • Maintenance and upgrades: system improvements, energy-efficient solutions, and compliance work. Gas Safe registered engineers; fully qualified and up to date with regulations. • Public liability insurance for your peace of mind. • Workmanship guarantee — we stand behind the quality of our work and resolve issues promptly. • Professional, hardworking team with years of hands-on experience and dedication. Please feel free to ask any questions or request a free quote. We respond quickly and can provide references and proof of qualifications on request.

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  • Loft Conversion Company in 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 London

    We are doing all types of dry lining jobs: Metal stud partitions, metal ceiling, grid ceilings, all kinds of plaster-boarding, tacking and dot&dab, insulation, loft insulation, plastering and tape and joint, loft conversion and any type house extension, We can supply all materials as well Also we can do transportation job,if people are moving in and out. Please be in touch with us and we will deal with prices Kind regards ZBRUCH TEAM

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  • Loft Conversion Company in London

    Design services including architectural design, interior design and landscaping: - Work Drawings. - 3D Rendering. - Building materials calculation.

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  • Loft Conversion Company in 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 London

    We have a 20 year experience in with handling windows and doors. We are manufacturing and supply Upvc winnows, doors, aluminium windows and doors, composite doors, patio doors, conservatory. We make upvc windows in Rehau profile

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  • Loft Conversion Company in London

    We are a professional property services company dedicated to providing high-quality maintenance/renovation to our clients. We cover London & Surrey with great availability.

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  • Loft Conversion Company in London

    .

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  • Loft Conversion Company in London

    From Landscaping to New build developments, we have vast experience in all building works. Working locally in Dartford/Bexley/Sidcup and surrounding areas we have always kept our schedules busy with work from repeat clients, investor developments and we have decided to use my builder to begin to pick interesting and local projects. Fully insured.

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  • I am an experienced carpenter and joinerer with over 20 years experience. In this time I have learnt valuable communication skills and man management as well as learning other trades. The work that we usually undertake are refurbishments, loft conversions, building design and extensions as well as other works in the construction industry.

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  • Loft Conversion Company in London

    iCAN Construction is a passionate team of trustworthy qualified builders and experienced professionals. We pride ourselves on providing a first-class service alongside high standards of work. We specialise in: Extensions, Loft Conversion, Property Refurbishments, Bathroom Renovations, Property Maintenance and Groundworks Whether it is a kitchen, bathroom, or full house renovation, with our 20 years of experience and excellent reputation you can be confident your ideas will be joined with our craftsmanship to produce your dream home. Throughout these years ICAN Construction has gained a reputation as a quality renovator and a trusted contractor, which can confidently take on any projects anyone can have in mind. From concept to creation helping you build the home of your dreams.

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  • Loft Conversion Company in London

    Hai , We are from Executive construction, we will help you to make New build homes , Roofing , Foundations , Landscaping, Rennovations and Driveways installer . Moreover , we will share with you new trending ideas and will work with full experience

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  • Loft Conversion Company in London

    I'm a friendly and approachable person with vast working experience within the Carpentry/Joinery profession. I am quick in my work yet provide a quality finish. Punctual, responsible and a mature individual, capable of meeting deadlines and working in a pressured or busy environment. I'm an eager multi tasker and competent problem solver with good knowledge of electrics, plumbing and plastering.I have given a lot of dedication to my previous employers/clients, and am always keen to meet new people and discover and learn new things. What I Do --------------------------------- 2nd fix, Windows (Making and Fitting - Experienced in both PVC and Hardwood) Doors, Kitchens,kitchen door replacement,Flooring,cabinet making,stair cases. Work History --------------------------------- 2 years apprenticeship with kitchen company. 9 years making and fitting hardwood windows and doors Recent self-employed jobs include ,2nd fix Carpentry on flat conversions,schools,hotels. Availability - Currently 3 -4 days notice required

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  • Loft Conversion Company in London

    Kelly Griffin -Roofing -Scaffolding -Roofline -Loft Conversions

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4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in London, are rated 4.4 out of 5 based on 12 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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