Loft Conversion Companies in Hounslow

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.2 (9 reviews)

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

Select a service

How it works

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

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

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 Hounslow

1471 Results

Sort by:

Cannon Build Solutions Ltd
Rating: 5 out of 5
Loft Conversion Company in Hounslow
As a family run business which has been in the building trade since 1864. We offer free no obligation quotations and consultations. A high quality, reasonably priced service, offering expert knowledge and advice.
Get in touch
Latest review:
Loft Conversion- 4 Mar 2020
Tom has provided a really excellent service throughout the job. He gave us a number of quotes as we changed and refined our plans and he made some really helpful suggestions about how best to proceed. I was very impressed with his project management, I always felt that I was kept up to date with the progress of the job. The quality of work from Tom and his team has been great and we even completed a week ahead of schedule!
1st click design & build ltd
No reviews yet
Loft Conversion Company in Hounslow
1ST CLICK DESIGN & BUILD LTD construction company your right choice to complete your Dream home .We have more than 20 years experience in building work .We do all type of building work New build ,extensions ,lofts conversions ,pitch and flat roofs, house refurbishment work, driveways & patios ,installation kitchen & bedrooms made to measure ,bathrooms ,all type of carpentry work etc .
Get in touch
The london Loft and Kitchen Company
Rating: 4.5 out of 5
Loft Conversion Company in Hounslow
We are a southwest London Based loft and kitchen extension specialist. Our working area is very small with 90% of our jobs in Wandsworth and any work outside this area is never more than a mile or two away. With over 15 years experience in this area we know inside and out how these properties were built so when it comes to structural alterations you couldn't be in safer hands.
Get in touch
Latest review:
Loft Conversion- 30 Jan 2018
Still waiting for David to fix issues and complete work. Have been trying to contact him for 2 months now with no luck. Really disappointed to leave this feedback but genuinely not able to get in touch with him and don't know how else to get his attention now.
Loft conversion
Rating: 5 out of 5
Loft Conversion Company in Hounslow
I specialise in Lof Conversion and extensions. I've been covering lofts for over 15 years. If you are looking to create extra space for you and your family then we can have this done for you, affordable and also providing a professional job.
Get in touch
Latest review:
Loft Conversion- 7 Dec 2022
Job well done and fast too. Also very much appreciated that Soren left the place clean after finishing the job.
Z3 Construction ltd
No reviews yet
Loft Conversion Company in Hounslow
We understand that construction is more than just building—it’s about creating spaces that are functional, durable, and perfectly suited to your needs. That’s why we take the time to plan carefully, communicate clearly, and work efficiently from start to finish. Whether you’re upgrading a single room, expanding your property, or starting a project from the ground up
Get in touch
Kaveh
Rating: 5 out of 5
Loft Conversion Company in Hounslow
Master Carpenter 20+ Years of Craftsmanship With over **two decades** of hands-on experience, I bring a master’s touch to every project, blending traditional techniques with modern precision. My career has been built on a foundation of reliability, an eye for detail, and a deep respect for the materials I work with. Whether it’s a structural transformation or a bespoke finishing touch, I specialize in delivering high-end results across all aspects of carpentry. Core Expertise *Kitchen Fittings: Full installations from carcass assembly to custom cabinetry and worktop mitering. *Loft Conversions: Managing structural timber work to turn underutilized spaces into stunning living areas. *Hardwood Flooring: Expert laying of solid and engineered wood for a seamless, durable finish. *Internal & External Doors: Precision hanging and hardware installation for perfect fit and function. *Bespoke Carpentry: From skirting and architraves to custom storage solutions. I believe that quality carpentry isn't just about building structures—it's about creating lasting value and beauty in a home. I pride myself on a clean workspace, clear communication, and a finish that stands the test of time. Let's
Get in touch
Latest review:
Carpentry- 1 Jun 2026
Kaveh did an excellent job fitting our doors. We were initially a little unsure as there were no reviews available, but he was professional from start to finish and the quality of his workmanship was outstanding. He completed the work to a high standard, communicated clearly throughout, and left everything tidy afterwards. I would highly recommend Kaveh for any carpentry work and would happily use his services again in the future.
Florin
Rating: 5 out of 5
Loft Conversion Company in Hounslow
I’ve got over 10 years experience in roofing industry,I’m a professional person,I’m not doing tipe of work that I never done it before,I don’t leave any jobs unfinished.I have done several roofing jobs for different companies base in London.
Get in touch
Latest review:
Roofing (Pitched)- 29 Nov 2022
Florin and his team did a very good job fitting a skylight and rubber roof. Communication was very good and the standard of workmanship and overall finish were excellent. I would strongly recommend him
Mb renovations
Rating: 5 out of 5
Loft Conversion Company in Hounslow
Professional Carpentry and building service with 15 years experience. Providing quality for a fair price.
Get in touch
Latest review:
Carpentry- 15 Feb 2026
I was impressed with Mitch. He was extremely knowledgeable and helpful. I will use him again and recommend him to my friends.
Espe Construction Limited
No reviews yet
Loft Conversion Company in Hounslow
With more than 20 years in the construction trade, we specialise in high-end residential projects. Whether it’s loft conversions, small extensions, large-scale double-storey extensions, or basement digs in prime London locations, we deliver exceptional craftsmanship and meticulous attention to detail. Operating across the M25 area, we provide homeowners with reliable construction services, managing projects of all sizes and complexities from initial design through to final completion, with efficiency and expertise. As a proud member of the Federation of Master Builders, TrustMark and an approved installer of Wykamol waterproofing systems, we are committed to maintaining the highest standards of work and customer service. We work closely with clients to provide bespoke solutions tailored to their needs, ensuring that the end result enhances both the home’s functionality and its value. We specialise in: Loft conversions Extensions (including double-storey builds) Basement excavations Design & build services High-end finishes We prioritise quality, integrity, and customer satisfaction. Our transparent communication, punctuality, and commitment to budget-friendly, on-time delivery make us the ideal choice for your construction project.
Get in touch
Spartex Build and electrical ltd
No reviews yet
Loft Conversion Company in Hounslow
Spartex Build are highly skilled and have many years of experience. Most of all we love planning, designing, and building and care about your project. We bring innovation and honesty to every interaction, and our customers love us. We come to work smiling and ready to build your dream. We have a passion for remodeling and are qualified to work on your design and build. For any queries or questions please contact us today
Get in touch
A&A Construction
Rating: 5 out of 5
Loft Conversion Company in Hounslow
A&A CONSTRUCTION has served north west London for over 10 years,we offer a complete home improvement package from design to completion.
Get in touch
Latest review:
Restoration & Refurbishment- 8 Sep 2026
Great team , great work . Finished on time . Would be looking to hire again in the future . Highly recommend
Sandhu heating and construction limited
No reviews yet
Loft Conversion Company in Hounslow
All Bulding work undertaken
Get in touch
Mahi construction build and design Ltd
No reviews yet
Loft Conversion Company in Hounslow
My name manjeet singh .and my company name mahi construction build and design Ltd.i,m always try to good and nice work
Get in touch
D H Builders & Contractors LTD
No reviews yet
Loft Conversion Company in Hounslow
New build Loft Roof K rend Electric Plumbing Extension Drive Decorating Bath
Get in touch
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Hounslow
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
Get in touch
Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
Atripledevelopments
No reviews yet
Loft Conversion Company in Hounslow
At atripledivelopments, we offer a wide range of professional services with a focus on quality, reliability, and trust. Our experienced team is committed to delivering exceptional results, ensuring every project is completed on time and to the highest standards. Let us turn your vision into reality with care and expertise you can rely on.
Get in touch

4.2

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Hounslow, 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 Hounslow?

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

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 Hounslow loft conversion company.

Find a loft conversion company in Hounslow 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 Hounslow.

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 Hounslow can view your job and register their interest.

Step 2: Review and compare Hounslow 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 Hounslow 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 Hounslow 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 Hounslow

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 Hounslow?

A local loft conversion company in Hounslow 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 Hounslow 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 Hounslow 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 Hounslow

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 Hounslow before agreeing to start the work.

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

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