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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

    Welcome to Steps Builders Ltd, your premier destination for expert building solutions. Specializing in loft conversions, house extensions, refurbishments, renovations, and garden fence installations, we pride ourselves on delivering high-quality craftsmanship At Steps Builders, we understand that every project is unique, which is why we tailor our services to meet your specific needs and budget. Contact us today to schedule a consultation and let us bring your vision to life

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  • Loft Conversion Company in South London

    PBL Building is company with over 25 years of experience in the construction industry, we pride ourselves on customer satisfaction, cleanliness, reliability and punctuality. Always there for any customer enquiries at any time. PBL Building have completed many small to major properties developments and refurbs over the last 25 years plus with full customer satisfaction.

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  • Loft Conversion Company in South London

    NSV Homes Ltd is a premier residential construction and procurement firm based in Dagenham, serving East London and the Home Counties. Unlike standard builders, we operate a Direct-to-Manufacture Supply Chain, allowing us to deliver high-specification renovations without the "middleman" markups. With over 15 years of experience, we specialise in Full-House Renovations, Extensions, and New Builds, bridging the gap between design and delivery. Our Competitive Advantage: We hold direct trade accounts with the UK's leading manufacturers, ensuring our clients access premium materials at exceptional value: Kitchens: Direct Partner for Burbidge & Son, & Omega PLC, more. Lighting: Specified Partner for Sensio Lighting, more. Flooring: Direct Partner with Victoria Carpets, Riviera Home, and Hugh Mackay, more. Joinery: Bespoke media walls and cabinetry via HUX London, more. Core Services: Rear Extensions & Structural Alterations: From groundworks to steel sign-off. High-Spec Kitchens & Bathrooms: Supply and installation using our direct procurement channels. Full Property Refurbishment: Project managed from concept to completion. Media Walls & Bespoke Joinery: Custom-built using direct-supply materials. Why Choose NSV Homes: We combine the reliability of a family-run contractor with the buying power of a procurement house. We don't just build; we source, supply, and install the highest quality finishes for your home.

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  • Loft Conversion Company in South London

    I have been working in building for 16 years I was a carpenter working in the luxury west end property developer. I have run my own team since 2010. I have taken projects worth £500k in the past. I have a great team and good customer service skills.

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  • Loft Conversion Company in South London

    The Bleu Group are a highly experience building team who have been working together for over 10 years. We cover all aspects of building works; from start to finish. No job is too big or too small for us.

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  • Loft Conversion Company in South 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 South London

    My name is Alket. With 15 years of hands-on experience in the plastering, rendering and screeding industry i have honed my skills to deliver exceptional quality. Plastering:Expertise in applying various types of plaster,includin lime,gypsum and cement, to create smooth and durable finishes. Rendering:Proficient in different rendering techniques,including traditional sand and cement render, monochouche and acrylic render system. Screeding:Skilled in laying both traditional sand and cement screed and modern liquid screed to achieve level floors with precision.

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  • Loft Conversion Company in South London

    Greater London January 2000 to December 2023 20+ years self-employed experience in the construction trades which include the following: Central heating system Installed combo boiler Double story side and rear extensions Loft conversion Conversion of flats Installing new kitchens and bathrooms Drives and The above is the experience I have gained working on both my own and clients projects. My clients have all been left very satisfied and were repeat customers

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  • Loft Conversion Company in South London

    At Top K Construction and Design LTD, your vision is our project. With over 20 years of experience, we have successfully completed a wide range of projects across London, from new builds and refurbishments to garages and extensions. We are passionate about turning your ideas into reality and prioritize your satisfaction in every step of the process. We love taking on new challenges and working closely with our clients to create spaces that truly meet their needs. Let us bring your dream project to life — quality, reliability, and customer happiness are at the heart of everything we do.

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  • Loft Conversion Company in South London

    We are a medium-sized business catering for the Construction industry. With over 20 years experience, we specialise in Loft Conversions, Extensions and complete refurbishments. All trades are under our roof and a 10 year guarantee on workmanship.

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  • Loft Conversion Company in South London

    Lofts conversation

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  • Loft Conversion Company in South London

    We cover every aspect of construction. We have over 20 years of experience in the industry. We offer value for money and always take pride in our services.

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  • Loft Conversion Company in South 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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  • Loft Conversion Company in South London

    We are a conscientious,Friendly polite teame and we take pride in our work

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  • Loft Conversion Company in South London

    “Hi, I’m Gurpreet singh. I’m a qualified builder with 7 years of experience in residential and commercial work. I specialise in all type of building work such as renovations, extensions, and general building. I take pride in quality workmanship and reliable service.”

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  • Loft Conversion Company in South London

    We are specialists of all types of loft conversions, mansards and all type of roofing(pitch roofs, flat roofs), summer houses, timber frame constructions and all type of carpentry We have 15 years of experience. Our satisfied customers are our tomorrows recommendations!

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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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