Loft Conversion Companies in Brentford

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.3 (10 reviews)

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Some of our top rated loft conversion companies in Brentford

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Stn Contacts Ltd
Rating: 5 out of 5
Loft Conversion Company in Brentford
Should you require a quotation for any works, or even just advice, please call /e-mail us and we will be happy to help you: Basements Extensions Loft conversions New builds Refurbishments Kitchens and bathrooms Carpentry and joinery Roofing Insurance work Design and build
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Latest review:
Stan and his workers are very reliable, professional with there workmanship and very good value for money. Compared with other quotes I received. I had a ground floor and 1st floor extension and a new large kitchen installed and a large bedroom ensuite on the 1st floor.
F D SERVICES FULHAM LTD
Rating: 5 out of 5
Loft Conversion Company in Brentford
The profile of F D services has been enriched by hard-working, highly qualified professionals who always do their very best to achieve excellence in their work. As a result, F D services is a well-established and trusted gas company with extensive experience. Customers are always happy to request our services again and again, as well as to recommend the company.
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Latest review:
Gas Work- 7 May 2024
Florin has done a great job to replace my gas system boiler. He worked hard to finish the job in one day, in fact stayed late evening to make sure the job was completed. He registered the boiler, provided the building reg and Lanlord certificate. I will recommend him based on my experience and will use him again in future.
singhbuilder
Rating: 5 out of 5
Loft Conversion Company in Brentford
Hi my name is Dil Singh, I'm a runing own business with 10years + experience, Multi skilled in all aspects of as a certified electrician, roofing and building.Able to deliver a high standard of work. All new work can be done guaranteed,References avalible on request. I done plenty jobs like electric work: change the consumer unit, wiring, design and inspection and testing, fault finding, loft conversion, extensions. I never let down my customers. Job done guaranteed from a to z by me.
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Latest review:
Loft Conversion- 26 Dec 2019
Working with Dil was a pleasure! From the the outset he was very helpful with calculating overall costs (over and above his costs) for the build to ensure everything had been catered for and was very thorough in checking that my ideas/plans were appropriate for the long term. It was through the initial discussion that some minor adjustments were made and for the better I believe, simple things like where the new Megaflow System should be placed. He was very quick and efficient in identifying where there may be issues upfront and has the right contacts to get things sorted to minimise problems further into the build. I had to get a new mains water pipe installed which to me was a a major job but he got it sorted very quickly through his contacts at a very reasonable cost. His team are very polite and they do a as good a job as possible to minimise impact on your daily living if like us you are living in the property during the process. Essentially a team of 3/4 guys who are capable of doing most things however Dil does call in specialist trade as and when needed to ensure the job gets done in a timely manner, for my build he called in roofers and certified plumbers for the boiler. Only negative is that you have to watch the silicone sealant finishing which is not the tidiest but a minor in the grand scheme of things and if you don’t like something you simply have to say and he will redo within reason. Overall a very happy customer
Ceka Construction Limited
Rating: 5 out of 5
Loft Conversion Company in Brentford
Ceka Construction Ltd covers all aspects of building works. Each team member is an expert in his field. We pride ourselves on being reliable, professional, efficient & hard-working, with an excellent reputation. Most of our work comes via word-of-mouth.
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Latest review:
Joinery & Cabinet Making- 20 Jan 2010
Ceka Construction fitted new skirting boards and picture rail aswell as removing the current skirting board first. From start to finish the service was Excellent. They responded back to any question i had very promptly and the quality of work carried out was of an exceptionally high standard. Roland was very flexible with his time to get the job done with my timeframe requirements and the Carpenter Vini worked fast, of very high quality and cleaned up afterwards. I would highly recommend Ceka Construction to anyone as they were completely professional and reliable.
Rutba design & build ltd
Rating: 5 out of 5
Loft Conversion Company in Brentford
I provide complete building services like loft conversion, side & rear extensions, kitchen, bathroom, plumbing, underfloor heating, electric & driveways, painting & decorating etc.
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Latest review:
Absolutely great quality of work and outstanding service. Jagjeet and his team have done a great job without any delays. Honest and hard working. Very happy to recommend Rutba
john d limited
Rating: 5 out of 5
Loft Conversion Company in Brentford
Thank you for taking time to look at our profile. We are a company with over 20 years experience in domestic and commercial installations. We are able to help from simple maintenance, fault finding and testing to complex new installations. Customer satisfaction is taken seriously as well as punctuality, neatens and honesty in doing business with our clients.
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Latest review:
Electrical- 14 Jun 2020
Greg, explored all possible solutions whilst keeping the changes to the ascetics as minimal as possible. He talked me through his plans and we booked him in. We are very happy with the work and would definitely call Greg again should I need more electrical work doing.
Arif domi limited
Rating: 5 out of 5
Loft Conversion Company in Brentford
Hello, I’m Arif Domi, Your Trusted Fencing Expert! At Arif Domi Limited ,we specialize in high-quality fencing solutions tailored to your needs. Whether you’re looking for security, privacy, or a decorative touch for your property, we offer expert craftsmanship and durable materials to ensure your fence stands strong for years to come. With our experience, we take pride in delivering professional installations, repairs, and custom designs for residential and commercial properties. Customer satisfaction is our top priority, and we’re committed to providing reliable service at competitive prices. Let’s discuss how we can enhance your property with the perfect fence. Contact me today for a free consultation and quotes. Looking forward to working with you!
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SRK Constructions London Ltd
Rating: 5 out of 5
Loft Conversion Company in Brentford
We offer a plethora of construction services and are known for excellent k-rendering, electrical fitting, plumbing, and carpet service. We have been in the industry for more than 14 years and our work varying from small to large projects speaks about our experience in the field. We believe in creating with heart and building with the mind. We are trustworthy contractors and always strive to meet the quoted budget. Clients’ satisfaction is the topmost priority of the SRK constructions.
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Latest review:
Bathroom Fitting- 12 Apr 2022
Sandeep was the first builder who I ever met who finished job before time . His team has worked very hard and did job as per our expectations . Before this I used 3 different builders and no one finished job on time . I will recommend him for any building related job .
DEMA ROOFING AND BUILDING LTD
Rating: 5 out of 5
Loft Conversion Company in Brentford
DEMA Roofing & Building Ltd is a London based specialist roofing&Construction company. We have a honest, reliable and highly skilled team of roofers&builders which enables us to offer you one of the most professional and cost effective services. We provide business backed guarantees and insurance backed guarantees on all our work.
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Latest review:
Loft Conversion- 15 May 2025
We had the pleasure of having Arben and his brother work on our loft, and I can't recommend them highly enough. The job was incredibly challenging, but they tackled it with skill, determination, and a great attitude. From start to finish, they were professional, efficient, and incredibly friendly. The quality of their work was outstanding - they paid great attention to detail and clearly take pride in what they do. It was a real pleasure having such trustworthy and skilled tradesmen in our home. Thank you, Arben, for the fantastic job!
Foryourservice
Rating: 5 out of 5
Loft Conversion Company in Brentford
With over 20 years of experience, we are a full-service construction company based in London, serving London and surrounding areas. From start to finish, we handle every aspect of your project, including general construction, subcontracting, plumbing, electrical work, and more. Our team is committed to delivering high-quality workmanship and reliable service, whether it's a residential renovation or a commercial build. We take pride in providing comprehensive solutions tailored to meet your needs, ensuring each project is completed on time, on budget, and to the highest standards.
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Latest review:
Painting & Decorating- 7 Dec 2021
I chose Fayn as it provides detailed breakdown on a written quote, similar way of quote for large construction project. I hire it to do two two jobs - #1 repair previous flush light damage; #2 repair painting hook holes. I am happy with the job #1 but job #2 could have done better. For job #1, he has kept the place clean and tidy, ceiling area near flush light becomes smooth and nice. He is polite. For job #2, I was hoping to hide the tiny painting hook holes but they end up enlarged marks on wall. I must say the paint color I got isn’t quite matching, also a matter of new and old paint. I would appreciate him letting know me the color isn’t right after applying to the first hook instead applying to all, as well as using a smaller brush for tiny holes. He helps finding solutions by mixing paint. But every touch up just extends the area, so I had to tell him to start small for testing. He tried hard to make the mark less obvious.
Wall Done SP
Rating: 5 out of 5
Loft Conversion Company in Brentford
We believe your home should evolve with your lifestyle. Whether you're expanding your living space with a loft extension or completely renovating your property, we turn your ideas into reality.
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GFS Constructions Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Brentford
1.) Renovations 2.) Paint 3.) Extensions 4.) Repairs 5.) Bathroom fitting 6.) Tiles 7:) I started my work 8 years ago.
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Latest review:
Bathroom Fitting- 8 Oct 2018
High quality work and happy with the outcome.
new vision construction(uk) ltd
Rating: 5 out of 5
Loft Conversion Company in Brentford
New Vision Construction (UK) Ltd is committed to provide the highest quality professional construction services. This commitment can only be maintained through the efforts of its people. We provide quality construction services to our clients. The pride we have in our work enables our clients to enjoy the construction process with confidence.The craftsmanship quality we produce is visible in all our finished projects regardless of the projects size.
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Latest review:
Bathroom Fitting- 17 Jul 2020
Very professional & skilled builder. Aswell as a full bathroom refurbishment he took extra time on the small details to really make it a special end result. Me & my family are very pleased with Ranjits work. A very helpful and knowledgable man. Thanks Ranjit for a great bathroom for me & my family to enjoy.
Plastering and Rendering
Rating: 5 out of 5
Loft Conversion Company in Brentford
plasterering and Renderering specialist, K-rend - silicone render - insulations, EWI system, Micro cement. drylining, and full refurbishment. Over 20 years experience.
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Latest review:
Plastering- 7 Aug 2023
Festim was efficient, punctual and did a very nice job rendering my wall. Highly recommended.
FSB Company (UK) LTD
Rating: 5 out of 5
Loft Conversion Company in Brentford
FSB is a well-organized contracting company with a team experienced in large-scale development projects with leading UK construction companies. Based primarily in London, we offer a variety of self delivered services, including complete extensions, and conversions, small works, structural alterations, steel work installations, ground work (foundations, drainage, concrete sub and superstructures), hard landscaping and paving and soft landscaping. We manage our sites carefully and have a digital site management tool kit. Our fully managed service connects skilled tradespeople with experienced construction management directly ensuring attention to detail that begins with our Contractors Proposals and continues through to practical completion and aftercare.
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Latest review:
Groundwork & Foundations- 6 Mar 2026
Fantastic and friendly team. Worked hard to make sure everything was done professionally and tackled an unexpected collapsing fence. Would recommend and use again
WILTON BUILDING SERVICES ENGINEERING
Rating: 5 out of 5
Loft Conversion Company in Brentford
We serve all construction infrastructure; building, electrics, plumbing, carpentry, and more. Our services span from initial planning, through start-up and operations. We have helped customers to complete their projects, and improving their life. Characterized by the quality of our work and our persistent drive to deliver the most successful outcomes, we align our capabilities to our customers’ objectives to create a lasting positive impact.
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Latest review:
We had an excellent experience with Wilton. They made the process straight forward and quite painless from start to finish. Everything proceeded efficiently and we are thrilled with the final results. Two beautiful new bathrooms, finished on time. A great experience from start to finish.

4.3

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Brentford, are rated 4.3 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in Brentford?

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

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 Brentford loft conversion company.

Find a loft conversion company in Brentford 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 Brentford.

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 Brentford can view your job and register their interest.

Step 2: Review and compare Brentford 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 Brentford 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 Brentford 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 Brentford

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 Brentford?

A local loft conversion company in Brentford 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 Brentford 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 Brentford 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 Brentford

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 Brentford before agreeing to start the work.

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

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