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Loft Conversion Companies in South London

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

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Some of our top rated loft conversion companies in South London

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  • Loft Conversion Company in South London

    Hi my name is krasimir dimitrov, I have been in the trade for plus 10 years, my company does loft converions, extensions, new builds, patios drive ways, gardens, new bathrooms & kitchen fittings, and many more.

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  • Loft Conversion Company in South London

    Our business mainly offers loft conversion services however we do offer alternative building and finishing works such as door hanging, bespoke wardrobes, fitted units and other general carpentry works. Personally I have worked as a qualified carpenter for over 30 years. My experience ranges from loft conversions, 1st and 2nd fixing and bespoke joinery.

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  • Polite hardworking Builders and tradesman. Friendly helping guys. Grand advice with fine eye of the final finish. Willing to go the extra mile. No job to small or big. Very honest - hands you can trust. Competitive pricing.

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  • Loft Conversion Company in South London

    Hi there I’m builder, I do all kind of jobs related construction, if you want work at your home or shop our team is ready 7/24 please, thanks. Reach me, Tahir

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  • Loft Conversion Company in South London

    Over 25 years experience in domestic and commercial renovation works, government trust mark member

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  • Loft Conversion Company in South London

    We are a world class joinery & multi trade fit-out specialists, We have special offer for all our customers which differentiate us from different companies. We are looking forward working with you as one of our main point is to make customer comfortable during the whole project!

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  • Loft Conversion Company in South London

    I have over twenty years of experience in construction work.

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  • Loft Conversion Company in South London

    Buildtekk Limited is a company working with both commercial and residential clients. We can provide solutions for all of your construction needs. Our tradesmen and contractors often have a lifetime of experience and from architects and surveyors to suppliers, have worked with the same people for many years. At Buildtekk our overheads are kept to a minimum which means you the customer receive a high standard of service without all the "big office", expenses added in. We are here to help you realise your construction requirements in a common sense way.

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  • Loft Conversion Company in South London

    Hi, I’m jas from joshan builders. With over 15 years in the trade, I specialise in high-quality loft conversions / extensions/ new builds. I take pride in clear communication, reliable timelines, and attention to detail on every project. 📍 Where I work: tottenham, I cover surrounding areas up to 20 miles 🔧 Special skills: Structural work, bespoke carpentry, accurate quoting, and managing full renovations. ✅ Why hire me: I’m committed to getting the job done right — first time, on time. Let’s talk about your project — I’d love to help bring it to life!

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  • Loft Conversion Company in South London

    30 years experience in refurbishments conversions and extensions however smaller jobs (eg door hanging, stair fitting ) also undertaken.

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  • Loft Conversion Company in South London

    Specialising in Loft/Rear extensions, refurbishments, kitchens and bathrooms

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  • Loft Conversion Company in South London

    Quality work

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  • Loft Conversion Company in South London

    We specialise in a wide range of loft conversion types tailored to different property styles. Whether you’re considering a space-enhancing Dormer, a bright and airy Velux loft, or a full Mansard transformation, we offer bespoke solutions to suit your needs. Our expert team will guide you through every option – including Hip to Gable and L-Shaped Dormers – to find the ideal fit for your home, layout, and lifestyle goals.

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  • Loft Conversion Company in South London

    🏗️ Build with Confidence – Build with Us! 🏡 B.S.D Design & Build is a proud member of FMB. Not every builder is a Master Builder! In an unlicensed industry, choosing a Federation of Master Builders member gives you peace of mind, knowing we meet strict entry criteria and undergo continuous monitoring. ✅ Expert Craftsmanship ✅ On-Time & On-Budget ✅ Built to Last Trust the professionals. Contact B.S.D Design & Build today! 📞🔨

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  • Loft Conversion Company in South London

    The Britstatus Company Ltd — Professional Building Services in London About Us We are a family‑run construction company with over 5 years of experience in residential and commercial projects. We operate across London and surrounding areas, ensuring quality, punctuality, and a professional approach at every stage of construction. Our Services House renovation and full refurbishment Extensions and loft conversions Carpentry (1st and 2nd fix) Bricklaying and masonry Drywall installation and plastering Kitchen and bathroom fitting Painting and decorating Flooring (wood, tiles, laminate) Roofing and guttering Landscaping and fencing General building work Why Choose Us? Experienced and reliable team Family‑run company with high standards VAT registered and fully insured Own tools, transport, and PPE Attention to detail Free quotes Available For Private clients Construction sites Property maintenance Renovation and refurbishment Subcontracting Ready to build something great together.

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  • Loft Conversion Company in South London

    We are a family run construction company dedicated to meeting all your construction work needs to high standard

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4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in South London, are rated 4.4 out of 5 based on 11 reviews from customers like you.

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What services are offered by loft conversion companies in South London?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in South 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 South 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 South 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 South London loft conversion company.

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

Step 2: Review and compare South 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 South 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 South 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 South 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 South London?

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

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

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