Loft Conversion Companies in Chiswick

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.5 (8 reviews)

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Some of our top rated loft conversion companies in Chiswick

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Regal Construction Services Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Free Viewing & Quotation Contact us to arrange a free viewing by one of our managers. After the viewing, all the information obtained will be handed to our Quantity Surveying team, who will assess the extent of the work and produce a detailed Quotation, including a full break down of labour, materials and plant. This will be sent to you via email for your perusal. If you are not happy with any aspect of the quotation, we can arrange a second visit and go through the quote with you.
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Latest review:
Conversions - General- 3 Aug 2021
Regal have been absolutely brilliant. They carried out the work professionally and to a very high standard. The willingness to go the extra mile was greatly appreciated and we will be using Regal for all our projects going forward. Could not recommend them highly enough!
Stn Contacts Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
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.
Loyalty Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
New to this platform, but backed by over 20 years of construction experience. At Loyalty Construction, we combine extensive industry knowledge with quality workmanship, honest communication and reliable service. From refurbishments and renovations to general building works, every project is completed with care, professionalism and attention to detail. To introduce ourselves to the platform and give our first customers the opportunity to experience the quality of our work, we are offering 10% off to our first clients. We look forward to earning your trust, delivering excellent results and building a strong reputation through genuine customer reviews.
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Latest review:
Rodrigo and team at Loyalty renovated our house, fixing lots of minor issues across the house from wear and tear. They were very flexible and did a great job across the whole house inside and outside. We have had lots of compliments since they did the work of how well the house is presented.
T&M
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Artisanat M&T London LTD is a professional carpentry and joinery company serving London and the surrounding areas. We specialise in bespoke joinery, fitted wardrobes, media walls, wall panelling, kitchen installation, flooring, staircases, first fix and second fix carpentry, internal doors, fire doors, skirting boards, architraves and complete interior woodwork. Whether you need a single room renovation or a full house refurbishment, we deliver high-quality craftsmanship, attention to detail and reliable service from start to finish. Our team works with homeowners, architects and contractors to create bespoke solutions that combine functionality with outstanding design. Every project is completed to the highest standard using quality materials and professional installation techniques. We take pride in our workmanship, clear communication and customer satisfaction, which is reflected in our excellent reviews and long-term client relationships. If you’re looking for experienced carpenters and joiners in London, we’d be happy to discuss your project and provide a free quotation.
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Latest review:
Hard Flooring- 17 Aug 2026
Michael is the most fabulous tradesperson. Professional, polite, considerate. He was a joy to work with, explaining and making recommendations. He did the painting too. As you can see it looks amazing. Can’t recommend highly enough.
Nexbuild Group Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Chiswick
NEXBUILD GROUP LTD provides reliable, high-quality building services, combining skilled craftsmanship with modern solutions. We work closely with our clients to deliver projects they can trust and be proud of.
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Latest review:
Painting & Decorating- 13 Jul 2026
Painting of kitchen, bedroom and bathroom. I am very happy with the end result! The guys are very professional, brings all the kit needed and always tidy. They finished ahead of time. I would recommend them and certainly use them again myself if needed.
Pavlito Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Pavlito Construction Ltd is a family run business with over 15 years of international experience in construction and general building (Germany, Italy, Poland and UK). We have worked extremely hard in order to establish a well respected name and reputation.
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Latest review:
Restoration & Refurbishment- 15 Feb 2016
Pawel and his team modernised our two bedroom house from top to bottom. They installed central heating in every room, they removed our old warm air heating, made an open plan for the kitchen and living room area, installed new bathroom and kitchen units and did the tiling too, they updated our electrics and sockets and also plastered and painted the walls and fitted our wooden flooring for downstairs. The job was completed within 12 weeks. We were very happy with the modernisation, our home looks completely different and has a new modern fresh feel. We will definately be using Pawel and his team for future jobs. Thanks again Khalima
Canyon Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
CANYON specialises in renovations, extensions, loft conversions and basements. We take the hassle out of a project by taking care of the entire project cycle, from design and planning through to building and construction. From start to finish we will be your one point of contact. We also regularly take on build-only projects, for private clients and architects. Our build team specialises in producing superb high quality finishes. Please contact us to get your project started.
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Latest review:
Architecture- 7 Oct 2016
Gianni planned our single storey side extension and we were pleased with the results - it was a lot cheaper than our other quotes, particularly the steel calculations. Would definitely recommend, as long as you are not in too much of a hurry !!
Axe Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Hello and welcome to Axe Construction Ltd. If you are thinking of renovating your home, building an extention or arranging general maintenance in your property, we are here to help. Our priority in job is to deliver high standard service to customer’s satisfaction.We offer a professional and friendly service to all private and commercial clients in and around London We are always go above and beyond to satisfy our clients.We are happy to provide references from our clients and arrange site visit
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Latest review:
Loft Conversion- 24 Jul 2021
I have to say I was very impressed with Axe from the outset. Ed the project manager clearly knew what he was talking about and was able to come up with suggestions and guidance whenever a decision was needed. He provided an up-front itemised quote, and this was stuck to. The team of workmen led by Avram did an excellent job and I am very happy with the finished product. Avram in particular was a superstar: high quality workmanship, creative solutions to problems, hard-working and most importantly he takes a pride in his work as if it were his own house. Plus, he noticed a tiny leak in the roof unrelated to the project which he fixed at no extra charge. Recommended - I would use them again.
Livinroom Developers Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Our expertise lies in project management of loft conversion and kitchen extension which is carefully coordinated to ensure a seamless and integrated package service from start to finish. Our role is to be the single point of responsibility taking the burden off the client. This includes managing what are often complex building processes from inception through to completion and hand over.
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Latest review:
I recently completed the building of an orangery extension (with skylight) to my semi-detached townhouse in NW London. The extension was to be used as a new kitchen while the existing kitchen converted to a living room. I awarded the contract of building the extension to Anthony and I was pleasantly impressed with the quality of work delivered. Anthony Project Managed the entire process from beginning to end and ensured that all my expectations were surpassed. His hands-on attitude to every detail of the work was quite reassuring. I am glad to say that Anthony and his team are very good professionals and they delivered the project on time and within budget, even going over and beyond the original scope of works in order to ensure that all my latter requests were addressed appropriately.
Solid Group Renovations
Rating: 5 out of 5
Loft Conversion Company in Chiswick
We are a highly experienced and skilled team specialising in property refurbishment and renovation. Our expertise includes HMO conversions, loft conversions, house extensions, and complete property refurbishments. We work closely with our clients throughout every stage of the project, ensuring clear communication and a smooth, stress-free experience. We are always accessible and committed to keeping you informed, so you remain in control of your project from start to finish. Our goal is to deliver high-quality workmanship and bring your vision to life, helping you achieve the renovation or property transformation you have always envisioned.
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Latest review:
Bathroom Fitting- 23 Sep 2026
Really happy with the bathroom refurb, Saba and his team, (Ben in particular who was the main fitter), were really easy to work with, polite, reliable, very hard working and left the area clean and tidy at the end of each day. They made helpful suggestions and accommodated all our requirements. Saba was onsite regularly checking the progress of the works and making sure we were happy with everything. We identified a manufacturing fault with the shower fixture after it had been fitted, so Ben has agreed to come back and fit the replacement once we've received it. I'm happy to recommend Saba and his team, and they'll be my first point of call for our next refurbishment job.
Inside Out
Rating: 4.9 out of 5
Loft Conversion Company in Chiswick
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.
SG Construction and Administration Solutions Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
• Structural Works • Refurbishment • Floor Works • Surveying • Structural Drawings • Building Control Permissions We are Qualified and Insured contractors. Please contact if we can help you with your Construction plans
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Latest review:
Restoration & Refurbishment- 16 May 2025
SG Construction are Quality, Very Happy with the Final Result of the construction work and it created this wonderful open plan space. Thanks. I 100% recommend, just look at the photos of the final job if you have any doubt.
Property DMR Services Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
Property DMR Services Ltd is a high end building company that specialises in refurbishing high end properties in and around London. All our work is insured & guaranteed. We undertake Basement Construction & Waterproofing, Extensions, Loft Conversions & Renovation, Decorating and wallpapering plus Bespoke Joinery & Shop Fitting
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Latest review:
Restoration & Refurbishment- 12 Sep 2024
From the first impression, throughout the early stage discussions and right up to the end - Matthew was consistently punctual, fair, thorough and reliable. Excellent execution of jobs and flat was left tidier than before. Would not hesitate in hiring him again or recommending.
RS building
Rating: 5 out of 5
Loft Conversion Company in Chiswick
We’re a highly professional team with over 20 years’ experience in extensions, loft conversions, high-end renovations, new builds, and property conversions. We deliver top-quality work on time and within budget. Our rates are among the most competitive in the UK at £180 per day per man + 10% OHP. With all specialist trades under one umbrella, we can handle projects of any size smoothly—from £20k up to £2m. Happy to discuss your project further
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Latest review:
RS Building successfully delivered two full back-to-brick refurbishments and a new-build development for us in Greenwich, including demolition and construction of four new dwellings. Their level of workmanship is exceptional, and their attention to detail is second to none. As experienced property developers, we’ve worked with many contractors—but RS Building stand out for their reliability, quality, and professionalism. We have since recommended them to several colleagues, all of whom have been equally impressed. Our only regret is not finding them sooner. We look forward to working with them again on future projects.
Marangoni Construction
Rating: 5 out of 5
Loft Conversion Company in Chiswick
We are dedicated to building quality projects and our wealth of experience and efficient working methods mean that with us on board, you get more - more choice, more cost savings and a quicker turnaround.We are a hard workers,good organiser,sociable,loyality,honest
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Latest review:
Hard working and experienced professional with large experience in mid-sized residential projects. Dyone always tries to go the extra mile to please the client. He has worked in several European countries giving him access to better knowledge of materials and suppliers. Great to work with.
RM Reid Ltd
Rating: 5 out of 5
Loft Conversion Company in Chiswick
My name is Ricky and I am the Director of RM Reid ltd. I have over 25 years experience with many trades. Between myself and my employees we have a vast amount of skills/knowledge within the construction industry. I believe you are only as good as your last job and seeing as I have 100% feedback I believe my reputation speaks for itself. We are Trustmark and chas accredited. Fully insured with warrantys available on major projects
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Latest review:
Restoration & Refurbishment- 27 Mar 2022
Ricky Reid I was looking for a company who could help me with a light refurbishment (kitchen, bathroom and full decoration) of a one bedroom flat in south west London to be ready for rental within 15 days. I posted my ad request on mybuilder.com and a few companies contacted me. Ricky Reid, was the third one I met and eventually the one I chose. Why? R. was straight forward, no gimmicks and did his best to understand what my needs were from day one. Especially when my vision at the start wasn’t that clear. Him and his team delivered within the time frame agreed as well as within the quote given plus a few extras that hadn’t been considered at the start of the project. He was always available for questions or clarifications needed over the phone at any time! A rare quality in itself in the building world. If there was anything that could be improved, this would be clarifying certain jobs that were on the quote (and I mean specifically what they exactly covered) from the start to avoid stingy or unexpected surprises cost wise. However this isn’t Ricky’s fault and I take my full responsibility as I should have done my homework before hand. Overall satisfied with the result and I would certainly contact Ricky and his team for my next future projects and so should you reading this review. Thank you Ricky and all the best in your company venture.

4.5

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Chiswick, are rated 4.5 out of 5 based on 8 reviews from customers like you.

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What services are offered by loft conversion companies in Chiswick?

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

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 Chiswick loft conversion company.

Find a loft conversion company in Chiswick 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 Chiswick.

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 Chiswick can view your job and register their interest.

Step 2: Review and compare Chiswick 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 Chiswick 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 Chiswick 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 Chiswick

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 Chiswick?

A local loft conversion company in Chiswick 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 Chiswick 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 Chiswick 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 Chiswick

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 Chiswick before agreeing to start the work.

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

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