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Loft Conversion Companies in Harrow, Greater London

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Some of our top rated loft conversion companies in Harrow, Greater London

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  • Loft Conversion Company in Harrow, Greater London

    PBS Group UK is the trading name for PBS Contracts (Design & Build) Ltd - family run, multi discipline, construction and bespoke architectural joinery fabricators established over 10 years ago. We operate from our 10,000sqft office and joinery workshop in Park Royal, NW10. We employ approx. 40-50 staff both within the workshop, on-site and in the office, including a Project Manager, Site Managers and supervisors overlooking a talented workforce.

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  • Loft Conversion Company in Harrow, Greater London

    Newly Joined My Builder, We are a established Building firm specialising in Extensions, Loft Conversions and Refurbishments, we undertake commercial projects along with substantial size constructions. Our team over all elements of construction.

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  • Loft Conversion Company in Harrow, Greater London

    30 years work for wood

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  • Loft Conversion Company in Harrow, Greater London

    Hello I am sadar Ji Construction. I take pride in my work and strive to deliver reliable and high quality service to every customer. I am detail oriented , punctual and always ready to go extra mile to ensure great results. We have skilled workers in are team and have a experience of 18 to 20 years .In new build house , roofing refurbishing loft conversion ,bathrooms , kitchen and electric plumbing ,out house , And I always focus on customer satisfaction and always aim to deliver the best results Thanks

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  • Loft Conversion Company in Harrow, Greater London

    Here at B.B lofts & Extensions we pride yourself on customer satisfaction, we are a family run business and been trading for almost 20 years , we only use fully qualified and insured tradesmen to carry out anything we don’t do in house We carry out lofts and extensions and everything in between so feel free to get in touch for any property needs .

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  • Loft Conversion Company in Harrow, Greater London

    Hi, I have been in the construction industry for 25 years. I am a specialist in all aspects of Carpentry and Joinery. We have a small, but very professional team. Our aim is leave each and every customer with a better end product than they were originally expecting. Having any sort of construction work done is intrusive on customers personal space, we recognise this and try to make our time in your property as easy as possible for you, the customer. I hope we can work together.

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  • Loft Conversion Company in Harrow, Greater London

    Call-to-Action: ✅ Need structural support for your project? [Contact us today] Intro Section: At M² Structural Ltd, we deliver expert structural engineering services across London and beyond. From concept to Building Control approval, we provide trusted design solutions for residential projects — whether you’re opening up internal spaces or extending your home. Our Core Services: 🔹 Structural Calculations & Drawings 🔹 Loft Conversions & House Extensions 🔹 Steel Beam Design & Load-Bearing Wall Removal 🔹 Building Control Compliance 🔹 Retrospective Approvals Featured Project Snapshot (Before/After Section): See how we transformed a London home by removing a bearing wall to create a brighter, more open living space — all structurally designed and approved. ⸻ 👷‍♂️ About Us Headline: Experienced. Accredited. Detail-Driven. Text: M² Structural Ltd is a structural engineering consultancy delivering safe, efficient, and regulation-compliant design for domestic projects. With over 15 years of experience in the industry, our work combines

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  • Loft Conversion Company in Harrow, Greater London

    We are working last 12 years I have good experience

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  • Loft Conversion Company in Harrow, Greater London

    Alpha Global Builders started with a simple ambition: to build something meaningful. What began as hands on work in gardens and outdoor spaces grew into a genuine passion for construction, from fences and patios to complete home transformations. Over eight years of experience in the trade, we've learned everything from the ground up. Real projects, real challenges, and real customers who trusted us with their homes. That hands on experience shaped who we are today. Recently, we took the next step and formally established Alpha Global Builders as a registered company, bringing together years of expertise under one trusted name. Today, we specialise in home renovations, loft conversions, house extensions, and kitchen and bathroom refurbishments across North West London. The kind of projects where attention to detail makes all the difference. We've grown, but our approach remains the same: treat every home like it's our own, and every customer like family.

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  • Loft Conversion Company in Harrow, Greater London

    Emit Zero is a London-based construction company delivering high-quality building and refurbishment services. Our team is dedicated to creating spaces that meet your needs, combining expertise with a professional approach. Our services include: • Home Extensions • Loft Conversions • New Builds • Structural Alterations • Insulation Installation We recognise that every project comes with its own unique challenges and opportunities. That’s why we take the time to listen, understand your goals, and work with you every step of the way. By blending thoughtful design, careful planning, and quality workmanship, we ensure every detail is handled with the care and attention it requires. Our team is fully insured, giving you peace of mind that your property is protected throughout the construction process. We also hold relevant accreditations in health and safety, ensuring that all work complies with current regulations and industry best practices. At Emit Zero, we don’t just construct buildings – we create spaces that reflect your vision and enhance the way you live and work.

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  • Loft Conversion Company in Harrow, Greater London

    My company name is NEW CRAFTS BUILDER LTD. We expertise in converting and building Homes according to customer needs

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  • Loft Conversion Company in Harrow, Greater London

    PSN Building Services LTD is a family run business that has been established since 1981. We specialise in Extensions, Loft conversions and structural repairs. Our Key aims are quality workmanship at a competitive price and customer satisfaction We are approved by the local authority and are fully insured for peace of mind

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  • Loft Conversion Company in Harrow, Greater London

    Backed by more than 30 years’ experience in the industry, Bask Construction Ltd have established themselves as one of the leading installers of all types of suspended ceilings, walls, and partitions in the Greater London area. From drywall to demountable partitioning systems, our installations are always completed to the highest possible standard.

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  • Loft Conversion Company in Harrow, Greater London

    ❌ We Turn Houses Into Kalaful Homes ❌ 350+ REVIEWS / 5 STAR RATING X⭕️X - WE'LL MATCH ANY REASONABLE QUOTES - X⭕️X Hi, This is Cristina in The Office. We Specialise in Flooring / Painting Int / Ext Building Services - Kitchens / Bathrooms / Lofts / Extensions.etc +£25 Each - Plane / Trimming Doors if required +Removal £50 - £75 Each Room + Disposal £100 - £300 If Required FLOORING ESTIMATES / WE ALSO DO PAINTING Fitting Beading / Scotia is Free, Inc in the Job Fitting Skirting is Min £200+ / Hallway Min £250+ Kitchen / Bathroom Min £200+ Laminate / Lvt Click ( Sub Floor Must be Reasonablly Level ) Straight Runs - £20m2 / Inc Hallways £25m2+ MIN £100 UPTO 5m2 Engineered Click Straight Runs - £25m2 / Inc Hallways £30m2+ MIN £150 UPTO 5m2 Hardwood T&G / Tongue & Groove Straight Runs - £30m2 / Inc Hallways £35m2+ MIN £200 UPTO 5m2 Herringbone - £40 - £45m2+ Cash Deals + 20% on Bank Transfer or if Invoice is Required - Payments To be Made End Of Each Day ❌ Must be Able to Provide Off Street Parking / Permits as The Crew Needs Access to The Vehicle at all Times. Thanking you in Advance Christina & Kam @ Kalaful Deco PAINTING ESTIMATES PAINTING ONLY - NO WALLPAPERING We also do Flooring / Gardening / Man & Van + Handyman Jobs Single Room - £300 Inc Minor Filling & Sanding / All White ) + £75 / 2 Colours / Woodwork £50+ £150 Extra To Paint on Fresh Plaster Living / Double Room - £400 Inc Minor Filling & Sanding / All White + £75 / 2 Colours / Woodwork £50+ Hallways- £450 - £750 Inc Working around 4-8 Doors Thanking you in Advance Christina & Kam @ Kalaful Deco

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  • Loft Conversion Company in Harrow, Greater London

    Refurbishment,house extension,loft conversion,kitchen,bathroom,flooring, carpet,double glazing,plumbing,heating electric.garden,driveways.garage conversion All type of building work

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4.2

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Harrow, Greater London, 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 Harrow, Greater London?

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

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

Step 2: Review and compare Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater London?

A local loft conversion company in Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater 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 Harrow, Greater London before agreeing to start the work.

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

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