Loft conversion companies in Hanwell

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (10 reviews)

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Some of our top rated loft conversion companies in Hanwell

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SuperDry Roofing & Building Specialists
Rating: 5 out of 5
Loft Conversion Company in Hanwell
We specialise in providing our customers with quality home improvements at the most competitive rates. The aim is to provide our customers with an affordable, professional and reliable home improvement and building service.
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Latest review:
Roofing (Flat)- 1 Sep 2026
I contacted Pete to investigate a leak in my flat roof. The source of the leak was extremely difficult to identify, as there were no obvious signs of where water was entering the property. Pete suggested carrying out a water test, which I agreed to. The test successfully identified a potential problem area, and Pete then proposed a suitable repair. He provided a detailed quote along with photographs showing the issue, which gave me confidence in the recommended work. Once we agreed to proceed, the repair was completed professionally and to a high standard. Pete left the area clean and tidy when the job was finished. After waiting through the long dry summer for some rain, I can now confirm that the leak has been fixed. Pete was professional throughout, communicated clearly, and kept me informed at every stage. I would not hesitate to recommend him to anyone needing roofing or building work.
A&R Construction services
Rating: 5 out of 5
Loft Conversion Company in Hanwell
We are a construction and development company based in West London, specialising in high-end residential refurbishments With over 15 years of experience, We take pride in our building works, so when you choose A&R Construction for your project, you will work directly with us and we’ll ensure to get you the best rates possible from suppliers, including: kitchens, tiles, wooden flooring, bi-fold doors, and sanitary ware.
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Latest review:
Roofing (Pitched)- 5 Apr 2024
I recently had the pleasure of working with the A&R company for roof repairs and transformation, and I must say, I couldn't be more impressed. Not only did they do an exceptional job with the repairs and transformation of my roof, but Amar and Jatinder went above and beyond by assisting with other minor fixes. Their friendly demeanor and professionalism made the entire process smooth and stress-free. I highly recommend A&R for their top-notch service and exemplary team members.
Inside Out
Rating: 4.9 out of 5
Loft Conversion Company in Hanwell
Inside Out was formed in 2009. We are an established, London based building company operating throughout London and within the M25. We deliver an honest and straight forward service, with quality workmanship at the forefront of everything we do.
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Latest review:
Kitchen Fitting- 22 Jan 2023
Really honest professional work. Stuck to my timing against all odds as I successfully added on a few jobs aside the kitchen. Very friendly team, no stress. Extremely tidy and thorough. Would recommend Inside out under Nico again and again.
TechnoHeat
Rating: 4.8 out of 5
Loft Conversion Company in Hanwell
We are Gas Safe and Heating engineers for over 15 years and and have been involve in all aspect of Gas.Heating.Plumbing jobs including boiler fault finding and Heating problems also we have very good reference in the bathroom and shower installation. Member of Vailliant Advance ,Baxi works to be able to register a new boiler for 7 and 5 years part and Labour warranty. No call out charges.
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Latest review:
Plumbing- 24 Sep 2018
Had confirmed I would take a day off for the job. Received a text on the day at the time he was meant to come saying van had broken down and could not come. Then offered to send a friend to do the job. Waste of a day and spent morning running around buying the equipment. If the van did really break down then that’s a fair excuse. Negative experience from my end.
Knowhow decorating services ltd
Rating: 5 out of 5
Loft Conversion Company in Hanwell
This is a family run company and our main objective has been to provide the highest quality on the market. I have over 20 years experience in private properties and commercial properties. I take on full property renovations so this is not the only trade I cover, however this is the trade that I first started in 25 years ago
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Latest review:
Samouil and his team at KnowHow Decorating completed a major project restoring our house. Work scope included sorting the tired and broken windows , guttering , fascia panels. Replacing rotten window ledges was done with superbly crafted new hard wood. No task was too difficult as the house was looking shabby. Full painting inside and outside was really well done. We feel like we have a "new" house and Samouil and team are a pleasure to deal with. They go beyond to satisfy you . I do not hesitate to recommend them strongly and will use again anytime .
Vector Living
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Vector Living is a highly experienced team of building professionals with over 23 years in the construction industry. Our skilled tradespeople, combined with an extensive network of trusted suppliers and industry contacts, allow us to deliver quality results on every project. We pride ourselves on being approachable, collaborative, and easy to work with. By taking the time to truly understand your needs and requirements, we ensure a smooth process and a low-risk, premium-quality outcome. Our success is built on clear and consistent communication. We keep our clients fully informed at every stage of the project, maintaining transparency from start to finish. No matter the size of the project, you’ll have a dedicated single point of contact — providing clarity, accountability, and complete peace of mind throughout the entire journey.
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Latest review:
Extensions- 8 Oct 2026
Vector Living were proactive from day one. Speaking with Ash it was immediately clear to us that we were in safe hands. The estimate worked nicely within our budget and indeed was spot on. All the extra enhances we wished for were therefore affordable. Vector’s site manager was also perfect and the numerous tradesmen worked efficiently and to the highest standard we had hoped for. Ash’s continuing advice and recommendations proved invaluable. Our kitchen extension is even better than we had dreamed possible!
YOB CONSTRUCTION LTD
Rating: 5 out of 5
Loft Conversion Company in Hanwell
At YOB Construction Ltd, we believe your home or business deserves the highest standard of workmanship. Based in North West London and proudly serving the surrounding areas, we specialise in a full range of building and renovation services, from kitchen and bathroom installations to bespoke carpentry, tiling, painting, decorating, and complete refurbishments and extensions. What sets us apart is our commitment to quality, reliability, and customer care. Every project, no matter the size, is managed with precision and attention to detail. We work closely with our clients to understand their vision, provide honest advice, and deliver results that not only meet expectations but exceed them. With years of experience and a team of skilled professionals, YOB Construction Ltd has built a reputation for trust, professionalism, and lasting results. We source only high-quality materials, maintain clear communication throughout the process, and ensure every job is completed on time and to the highest standard. Whether you’re refreshing a single room or transforming an entire property, you can rely on us to bring your ideas to life with skill, care, and dedication. Get in touch today for a free, no-obligation quote.
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Latest review:
Bathroom Fitting- 9 Nov 2025
Very good work. Alaa repared the tap in my bathroom and fixed a broken tile. The end result is excellent. I highly recommend.
Alex Mihai
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Hello! I have been working in this industry for over 10 years, having experience on building sites and on privat jobs aswell. I also do loft extensions , house extensions , roof refurbishment, groundwork and finishing touches to garden patios!
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Westldnconstruction
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Hi everyone My name is jass from Westldnconstruction we based in west London Our aim is to consistently deliver an excellent service to each and every customer. We provide a fair and honest approach to pricing with detailed quotations presented for your consideration, and we take the upmost pride and care in our service, ensuring you get the very best result possible.
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Latest review:
Loft Conversion- 16 Jul 2023
Jas , came up with a reasonable price, and once it was agreed to start, he had a big team on hand to get things moving quickly. The job was completed in a very short time frame, and on budget with quick communication on anything important such as choice of materials, Building control, design points, or general progress. Jas brings a wealth of experience and had valuable recommendations for how to complete the works efficiently along the way. I would thoroughly recommend Jas.
Reinaldo
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Hello, my name is Reinaldo Puerta and i owned a building company named Puerta Builders. My team of workers can deliver high standards of finishes, quality and schedules that meet requirements of our client’s expectations. Our company specialises in new construction, refurbishment of existing facilities, loft conversions and house extensions. We are able to offer the lowest rates with greater of quality and services. Puerta Builders looks forward to being part of your Work. Let us help you.
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Latest review:
Carpentry- 16 Apr 2017
For a number of reasons, Reinaldo is without doubt the best tradesman I have come across, After having Cowboy Builders ruin my brand new doors. The quality of his work was faultless, he was prompt, always on time and very efficient, his work and work area was always left clean and tidy, and his communication skills, with regards to problem solving and making sure that the work he was carrying out was to my requirements, was excellent. I gave Reinaldo a number of jobs to do over a few separate visits and was not let down once. I cannot recommend Reinaldo highly enough and will be using him again for any future carpentry & joinery works. Reinaldo is not a carpenter however a magician as he can spell his Magic on any given work with a smile.Thanks again ,Reinaldo great work!
provilla limited
Rating: 4.9 out of 5
Loft Conversion Company in Hanwell
Our company provides a complete construction service to both public and private sector. We proud ourselves with our Customer focus approach understanding our Client's needs and being proactive involved in all matters of our projects large or small.
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Latest review:
Loft Conversion- 19 Feb 2012
Very happy with standard of work. The job was done quickly ( as per schedule) and left area clean; both factors important to me as I had two little kids in the house!
Jozef
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Hi My name is Jozef I have joined My builder to provide you with the best building services. I have been working as building tradesman for 12 years , during that time I have learned how to meet high standard along with client satisfaction. I would like to personally meet you and discuss how I could be any help to you. Regards J.Zolnierek
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Latest review:
Handyman- 19 May 2016
Definitely will use him again
LoftSpec Ltd
Rating: 5 out of 5
Loft Conversion Company in Hanwell
LoftSpec is a trusted London builder specialising in loft conversions, extensions, kitchens, bathrooms, roofing, damp proofing and full home renovations. Fully insured, reliable, and committed to high-quality workmanship.
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Latest review:
Rafal was brilliant, fixed the roofing issue quickly and a really good price. I would definitely use him again and would recommend him to others
LV Design & Build LTD
Rating: 5 out of 5
Loft Conversion Company in Hanwell
Longview Design & Build specialises in high-end architectural design in London. Our team take pleasure in understanding your vision and then guide you towards completion. We act as a one-stop-shop by providing you with all the tools you need to deliver success. Whether you’re looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment, we are the actual Design & Build construction company you are looking for. We saw a gap in the market – all construction companies out there were founded from builders – and we thought we could bring our experience as Project Managers, Architects and Structural Engineers in construction. As building designers we thought we could bring in our passion, attention to details, knowledge in new high quality materials and cutting edge technology to achieve high end designs for affordable prices. LongView Renovations specialises in loft conversions, extensions, basements, renovations and new build homes in and around London. Through our experience in both construction and design we are able to better understand our client’s vision & needs and solve any issues along the way even for the more complicated projects
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Latest review:
Have used LV on two occasions and have also recommended them to my neighbours. Great communication and professional throughout the process
Ed
Rating: 5 out of 5
Loft Conversion Company in Hanwell
hi there my name is is Ed i’m a carpenter i do this job more then 9 years & i’m happy to help
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Latest review:
Carpentry- 7 Oct 2026
I would give 11/10 if I could. Ed was prompt with his timing and provided an excellent service. I needed 9 fire doors to be hung to existing old frames. He did a great job, from making the new doors fit old tricky frames, always cleaned up after himself, even vacuumed and swept the patio where he trimmed the doors. He completed them over two days and also installed new door stoppers for me. Always checked in with me to check I was happy and I was so pleased with the doors. A nice friendly guy you can talk to easily. Excellent workmanship and will be recommending him to others and will be definitely using him again. Keep up the good, professional work, Ed!
Star building and construction ltd
Rating: 5 out of 5
Loft Conversion Company in Hanwell
We have wide range of tradesmen available to carry out all different kind of jobs from Installing floors, building an extension, loft conversions, new builds and house renovations. We are dedicated to ensure that all our work meets the standards of our clients, hence why all our tradesmen are handpicked for each job. We thank you in advance for your consideration and welcome you to look through our portfolio. You
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Latest review:
New extension, kitchen, shower room, flooring, fiber glass roof, roof light, new electrics, plumbing, boiler installation, removal of chimney, rear patio, soakaway, painting and decorating Satnam has exceeded our expectations in carrying out the complete job to our satisfaction within the agreed time to a very high standard. We are extremely pleased with his work. Satnam helped us select good quality products from suppliers for much less cost than if we were to source them ourselves. He was honest, courteous, professional, flexible, open to changes and made suggestions to improve the overall look. He even passed on his builders' discounts to us. We highly recommend this ambitious young builder who has excelled in the trade. We wish Satnam and his team the very best.

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Hanwell, are rated 4.6 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in Hanwell?

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

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 Hanwell loft conversion company.

Find a loft conversion company in Hanwell 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 Hanwell.

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 Hanwell can view your job and register their interest.

Step 2: Review and compare Hanwell 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 Hanwell 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 Hanwell 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 Hanwell

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 Hanwell?

A local loft conversion company in Hanwell 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 Hanwell 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 Hanwell 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 Hanwell

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 Hanwell before agreeing to start the work.

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

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