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Loft Conversion Companies in Harlesden

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

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Some of our top rated loft conversion companies in Harlesden

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  • Loft Conversion Company in Harlesden

    We specialize in comprehensive bathroom renovations – from design to final finishing. With years of experience, we create both modern and classic designs, paying attention to the highest quality workmanship and every detail. We offer tiling, fixture installation, plumbing and electrical work, and professional advice at every stage of the project. Punctuality, reliability, and customer satisfaction are the foundations of our business. We create bathrooms that are functional, aesthetically pleasing, and tailored to individual needs.

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  • Loft Conversion Company in Harlesden

    yes we doing loft conversion on very good price and great work we provide in short time

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  • We are a trusted local construction company with over 8 years of experience, delivering high-quality extensions, loft conversions, and bespoke home renovations across London, Kent and other surrounding areas. From initial consultation through to completion, we take a considered, professional approach — working closely with homeowners to ensure expectations, budgets, and timescales are managed properly. We pride ourselves on attention to detail, reliable workmanship, and running clean, well-organised sites. Based in Bromley, Much of our work comes through recommendations and repeat clients, and we’re known locally for delivering projects to a high standard, without cutting corners. ✅ Fully insured and qualified team ✅ CHAS accredited (health & safety compliant) ✅ Constructionline registered ✅ Safe Contractor approved ✅ Fixed, transparent quotes — no hidden costs ✅ Dedicated project management from start to finish ✅ Clean, organised sites with respect for your home ✅ Clear communication and realistic timescales ✅ Trusted local company with a strong local reputation If you’re looking for a builder who values quality, transparency, and trust, we’d be happy to discuss your plans.

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  • Loft Conversion Company in Harlesden

    We are L&V Contractors expert in House extension and renovations.

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  • Loft Conversion Company in Harlesden

    Hiii, I very honest and I do very nicely any kind oof work i specially work for fencing

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  • At PK Decorating and Building Services we are committed to deliver the highest standards of quality in everything we do.Make the most of your property with high quality work, done the way it should be; fantastic workmanship, client communication and ensuring everything is clean and tidy when the work has been completed.While PK Decorating and Building Services is based in South London, we can deliver our services across London and the surrounding areas.If you have any questions please contact us

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  • Loft Conversion Company in Harlesden

    Transform Your Home with STYLEZING Construction Company – Experts in House Conversions--------- At STYLEZING Construction Company, we bring over 10 years of expertise in transforming unused spaces into beautiful, functional areas. Whether you're looking to convert a loft, garage, or make other structural changes, our skilled team is here to help you achieve your vision. Where We Work: We proudly serve clients across London, the South East, and surrounding areas. We’re also happy to travel further for larger projects, ensuring that your dream conversion is within reach, no matter where you are. Why Choose Us? • Experience You Can Trust: • Specialist Skills: • Tailored Solutions: Why Hire Us? At STYLEZING Construction Company, we focus on quality, clear communication, and timely delivery. Our commitment to customer satisfaction, attention to detail, and transparent pricing makes us the ideal choice for your conversion project. Contact us today for a free consultation and see how we can transform your space!

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  • Loft Conversion Company in Harlesden

    Founded in 2010, we have over a decade of experience delivering high-quality construction services across London. We specialize in all aspects of general construction, including refurbishments, loft conversions, extensions, roofing, building elevations, and basement works. Our team is committed to excellence, ensuring every project—whether a small refurbishment or a full structural reconfiguration—is completed to the highest standards. We operate across Central, South-West, West, and North-West London, including Westminster, Belgravia, Pimlico, Ealing, Notting Hill, Hampstead, and more. What sets us apart is our craftsmanship, reliability, and client-focused approach. We work closely with our clients to bring their visions to life, offering expert guidance and tailored solutions. Whether renovating, extending, or building from the ground up, we’re here to make your project a success. Contact us today to discuss your construction needs!

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  • Loft Conversion Company in Harlesden

    Hi My name is Eric from Cre8tive Contractors Ltd. At Cre8tive Contractors Ltd we feel proud to be part of the Federation of Master Builders and government endorsed TrustMark. This is reflective of the qualified and highly skilled craftsmen. We take pride in creating and reconfiguring your bespoke dream home, from footings to finishings, to high-end specification. We specialise in extensions, loft conversions, bathrooms, kitchens and refurbishments from design to completion. Happy to have an initial chat and arrange a free site visit at your convenience. I look forward to hearing from you. Many thanks Eric

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  • Loft Conversion Company in Harlesden

    BLM Construction Bros Ltd. is a trusted construction company with years of experience delivering high-quality residential projects. Specializing in home extensions and loft conversions, we provide tailored solutions to help homeowners transform their spaces. Our expert team works closely with clients from concept to completion, ensuring that each project meets the highest standards of craftsmanship, safety, and design. Whether you're looking to expand your living area or make the most of your attic space, BLM Construction Bros Ltd. is dedicated to bringing your vision to life with precision and professionalism.

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  • Loft Conversion Company in Harlesden

    We are based in Stoke Newington and have recently joined Mybuilder to expand our work and fill in gaps. Our company conducts construction work on small and medium scale projects. Whilst we specialise in loft conversions and extension buildings, we have over 20 years of experience in general construction work, carpentry and roofing, having completed over 500 projects.

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  • Loft Conversion Company in Harlesden

    London Carpentry Ltd is a carpentry base company with a great team of all trades.Specialising in lofts conversion, fitting kitchens, bathrooms, bedroom fit outs and all general building works.

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  • Loft Conversion Company in Harlesden

    Hi is Armand general Builder with a experience 8 years in london

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  • Loft Conversion Company in Harlesden

    MGA Projects Ltd is a trusted London-based construction company delivering high-quality building services from start to finish. We specialise in extensions, full refurbishments, loft conversions, and structural works including steel installations. With years of hands-on experience, we pride ourselves on reliability, attention to detail, and clear communication throughout every project. Whether it’s a small renovation or a full-scale build, we work closely with our clients to bring their vision to life—on time and within budget.

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  • Loft Conversion Company in Harlesden

    We’re a reliable, full-service construction company built on quality workmanship, honesty, and pride in every job we deliver. From start to finish, we handle it all — with a particular specialism in loft conversions, bathroom installations, plumbing work, and complete home improvements. What sets us apart is our people. Our team of experienced, skilled, and genuinely friendly tradesmen and women bring not only technical expertise, but professionalism, charisma, and respect into every home we work in. We believe great results come from clear communication, attention to detail, and doing things properly — no shortcuts. We’re known for being on time, transparent, and fair with our quotes, so there are no surprises along the way. Every project is approached with care and precision, ensuring the final result meets — and often exceeds — our clients’ expectations. Whether it’s transforming unused space into a beautiful loft, creating a modern bathroom, or taking care of essential plumbing work, we treat every job as if it were our own home. Your vision matters, and we’re committed to delivering results to your perfection.

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4.2

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Harlesden, are rated 4.2 out of 5 based on 9 reviews from customers like you.

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What services are offered by loft conversion companies in Harlesden?

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

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 Harlesden loft conversion company.

Find a loft conversion company in Harlesden 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 Harlesden.

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 Harlesden can view your job and register their interest.

Step 2: Review and compare Harlesden 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 Harlesden 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 Harlesden 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 Harlesden

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 Harlesden?

A local loft conversion company in Harlesden 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 Harlesden 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 Harlesden 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 Harlesden

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 Harlesden before agreeing to start the work.

Do I need planning permission for a loft conversion in Harlesden?

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 Harlesden 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 Harlesden loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.

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