Describe your job with details to view a tailored list of tradespeople.
Post your job

Loft Conversion Companies in Harrow

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

How it works

Post your job for free

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated loft conversion companies in Harrow

1482 Results

Sort by:

  • Loft Conversion Company in Harrow

    I’m hard worker

    Get in touch
  • Loft Conversion Company in Harrow

    Dynamic and highly experienced builder whit over 35 years in residential construction. Taking on variety of projects Lofts,Extensions, Renovations from concept to completion. Dedicated to quality in craftsmanship and delivering results to client expectations . Managing projects hands an. Fully insured whit public liability coverage. Reference from clients

    Get in touch
  • Loft Conversion Company in Harrow

    We are an experienced team of professional builders with many years of experience working across London. Our skilled tradesmen take pride in delivering high-quality workmanship, reliable service, and attention to detail on every project. We specialise in loft conversions, extensions, renovations, and general building work. Customer satisfaction is our priority, and we are committed to completing every job on time, within budget, and to the highest standard.

    Get in touch
  • Loft Conversion Company in Harrow

    Hi, I am very experienced plumber, been in business since 1984. I do all plumbing work.

    Get in touch
  • Loft Conversion Company in Harrow

    ✔️We don’t just build houses, we build trust. ✔️Strong foundations. Stronger futures. ✔️Quality construction, guaranteed satisfaction. ✔️From blueprint to reality. ✔️Building your dreams, brick by brick. ✔️Precision. Passion. Perfection. ✔️Where quality meets craftsmanship. ✔️Your vision, our expertise. ✔️Built to last. ✔️Construction done right the first time.

    Get in touch
  • Loft Conversion Company in Harrow

    I am Azem Qarri, 26 years old. I have 8 years of experience as a builder/handyman. I am experienced on :re-sealing bathrooms, installation of toilets, showers and bathroom cabinets.Lights,Home Improvements,Extensions, Flooring,Tiling,Kitchen fitters,Plumbing and Lofts! My service is clean and tidy and I I pride myself with my reliability! Please do not hesitate to contact me!

    Get in touch
  • Loft Conversion Company in Harrow

    We are working since 2000 in construction industry,we do extensions,loft conversions, kitchen,bathroom,heating and plumbing,electrical, gas certificates,

    Get in touch
  • Loft Conversion Company in Harrow

    At LArchitects, we are passionate about creating innovative and sustainable architectural solutions tailored to our clients' needs. With more than 10 years of experience in the industry, our team of skilled architects and project managers is dedicated to delivering personalized service from concept to completion, with services ranging from concept design to construction, including expertise in planning, design development, and construction administration.

    Get in touch
  • J&B roofing and construction is a reliable hardworking company established by myself and my partner. After working together for several years on both private and commercial projects we decided to join forces and created J&B roofing. We specialise in roofing, any job any size. We complete all jobs to a professional high standard and are happy to customise every job to suit your individual need, budget and style.

    Get in touch
  • Loft Conversion Company in Harrow

    We are a group made of 10 -15 people. We take on any job as we have a very skilled team. I believe we lead them well and we are very experienced. We work along with Gjoka Developer (24years of experience) & AR CONSTRUCT (13 years of experience). We literally take on any project as we do all the kinds of jobs such Renovations, house extension, lofts, gardens, electrics, plumbing, roofing etc etc. Don't hesitate, getting in touch doesn't cost, we offer free advise and estimates.

    Get in touch
  • We are a construction company operating from 2018 but have been working in the construction industry for 20 years with a lot of experience in our portfolio. We can cover projects from new build, extentions, loft conversions, full refurbishment, drainage, patios, gardening ect. We would be happy to help with any of your needs for improving your home.

    Get in touch
  • Loft Conversion Company in Harrow

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

    Get in touch
  • Loft Conversion Company in Harrow

    ConSys Solutions is a specialist that offers a professional Design & Build service for your house extension, loft conversion, garage conversions or new build. One-stop shop that provides everything necessary from initial design through planning permission, building regulations compliance, liaison with authorities to project management and cost efficient, high quality construction. It is our mission to provide creative solutions and the main drive of our company is the customer satisfaction.

    Get in touch
  • Woodberry London , is a personal, friendly company that is committed to meeting every customer's needs. We pride ourselves on our reasonable rates If you are looking for a professional service with high quality finishes, you can rely on us to deliver.

    Get in touch
  • Loft Conversion Company in Harrow

    A trusted construction company for building renovations, repairs and maintenance.

    Get in touch
  • Loft Conversion Company in Harrow

    Woodford Construction Services Ltd (WCSL) is a building, construction, and refurbishment company, which has been established for more than 25 years. As reputable building contractor, WCSL is able to offer a wealth of experience, having undertaken a broad spectrum of projects in the past. From small residential refurbishments, to large scale, high-value commercial developments, we are confident that we can provide the skills and services that your building project will require. WCSL offer a range of construction services, from architecture and interior design, to building and refurbishment. We have established and developed a diverse variety of expertise, which can be evidenced through our extensive portfolio of previous commissions. From minor alterations, to larger home builds, we have previously taken on a variety of internal and external residential projects. These have included extensions, loft conversions, and various internal refurbishments, including interior fit outs. We have also been involved in a wide range of commercial construction projects. This has ranged from new build construction, to the extensive refurbishment of flats, houses, offices and industrial units.

    Get in touch

4.2

Top rated Loft Conversion Companies

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

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What services are offered by loft conversion companies in Harrow?

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

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 Harrow loft conversion company.

Find a loft conversion company in Harrow 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 Harrow.

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 Harrow can view your job and register their interest.

Step 2: Review and compare Harrow 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 Harrow 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 Harrow 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 Harrow

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 Harrow?

A local loft conversion company in Harrow 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 Harrow 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 Harrow 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 Harrow

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 Harrow before agreeing to start the work.

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

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

Other tradespeople in Harrow

Cities