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 Swiss Cottage before agreeing to start the work.

Do I need planning permission for a loft conversion in Swiss Cottage?

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

Loft Conversion Companies in Swiss Cottage

Some of our top rated loft conversion companies in Swiss Cottage

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Fk skyline LTD
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Loft Conversion Company in Swiss Cottage
FK Skyline is a London-based construction company specialising in loft conversions, extensions, and full property renovations. We deliver high-quality workmanship, reliable timelines, and clear communication from start to finish. Our team is experienced, professional, and committed to meeting clients’ expectations while maintaining excellent standards of safety and cleanliness. We take pride in providing honest pricing, attention to detail, and customer satisfaction on every project.
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Phillips Projects
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Phillips Projects are a family run building company based in North London. We specialise in bathrooms, loft conversions, extensions and refurbishments. We have 50 years combined experience within the building trade. We offer professional and trustworthy advise.
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Latest review:
Loft Conversion- 5 Dec 2016
I could not recommend One Stop Lofts more highly. An extremely efficient job carried out to time, finished to an excellent standard and at a very competitive price. Very flexible and adaptable to changing ideas, this family team were a pleasure to work with. We would wholeheartedly support using Ray, Matt and Brad for any future work for ourselves and commend them to other potential clients.
PRASH DEVELOPMENTS LIMITED
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
PRASH DEVELOPMENTS LTD specialises in construction of Large Luxury New build Home, HMO & Flat developments, Extensions and Loft conversions We are team of skilled professional with 13 years of combined experiences. We pride ourselves in offering best quality hassle free service with effective pricing and timely delivery. Please feel free to contact us for any construction related information.
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Latest review:
The builders were in time and a great job done in one day when others quoted for 3 days job — all done with great professionalism and satisfaction — will give them 10⭐️
MW Home Improvements Limited
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
We are doing all types of house refurbishments and improvements. No job is too big or small for us. Skilled handiwork on high standard.
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Latest review:
Bathroom Fitting- 10 Jan 2023
Martin was very thorough from the beginning when giving me my quote. He did a very thorough job of making sure everything was to my liking. I cannot fault the quality of the work, my bathroom looks excellent! Martin is a really friendly guy and is very knowledgeable and was able to guide me when I did not understand. I would recommend him to anyone.
Oakwood Construction UK Ltd
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Loft Conversion Company in Swiss Cottage
At Oakwood Construction UK Ltd we provide expert building services covering the London area with over 30 years experience. We can cater for any construction need from basic work to extensive building works. Our professional team specialise in home and office refurbishments, extensions, structural work, loft conversions, all types of roofing work, new drives and patios, bathroom and kitchen full refurbishments and general maintenance. We are committed to excellence and providing our clients a top quality service. We are registered with the Federation of Master Builders & Trustmark.
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Capital building contractors
Rating: 3 out of 5
Loft Conversion Company in Swiss Cottage
North London based building company committed to provide highest quality service by experienced and highly skilled tradesmen. A team of 3 young tradesmen with an combined experience of over 3 decades in different trades like Carpentry, tiling, painting & decoration, electric and plumbing.
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Latest review:
Bathroom Fitting- 2 Nov 2021
Fair. I think in this stay n age tradesman take jobs that they can’t complete
Kreston Estates Ltd
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Loft Conversion Company in Swiss Cottage
With over 15 years of experience, we specialise in transforming homes through comprehensive renovation and refurbishment projects. Our passion lies in delivering high-quality craftsmanship and meticulous attention to detail, ensuring every client's vision is brought to life. We pride on clear communication and efficient project management, providing a smooth and stress-free experience from start to finish.
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Inspire Construction Solution LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
Lawrence hosier
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Loft Conversion Company in Swiss Cottage
Dear sir madam am qualified carpenter 25 years+ experience I am reliable and polite can do all aspects of carpentry from fitted wardrobes to loft conversions. am also skilled in tileing and fitted bathrooms references available apon request look forward to meeting you regards lawrence
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London Best Building Solutions Ltd
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Loft Conversion Company in Swiss Cottage
Experienced and reliable builder (more than 15 years in business), with a strong focus on quality and customer satisfaction. Skilled in residential construction, renovations and bespoke projects. Committed to delivering projects on time, within budget, and to the highest standards.
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hertfordshire plumbing & handyman services
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
I’am a highly experienced and skilled professional ready to help you with any project you have in mind I provide high quality, efficient and clean services, in a covid-secure way and at competitive prices. I aim to ensure that every job is delivered on time and to the highest standards.
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Latest review:
Bathroom Fitting- 15 Jun 2022
Mateusz, better known as Matthew, has just completed a job at my house consisting of replacing our bedroom ceiling, installation of downlights, repairs and redecoration, as well as the installation of a concealed shower, shower tray and cubicle, which involved some retiling and electrical repairs to mirror lights & switch. Matthew has done a great job, working conscientiously and paying attention to every detail. We are delighted with the outcome and it has been a real pleasure to have him working here. The work has been completed to a high standard and for a very reasonable price. I have already recommended Matthew to a neighbour and I would not hesitate to ask him back to do more work for us in the future.
AREZ LTD
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Loft Conversion Company in Swiss Cottage
AREZ LTD (loft conversion and extension kitchen and bathroom installations ) we focus on delivering your project to the highest quality Our team work hand in hand fully managed by the working foreman. This means all trades are scheduled for a smooth running job. Client delight is our aim as your ideas and visions are transformed into reality with minimal impact to you and your daily lifestyle.
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Bwood Builders LTD
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Loft Conversion Company in Swiss Cottage
Bathroom refurbishment Kitchen renovation Extension Loft Conversions Full house refurbishment
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Ardent home improvements
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
We are a Passionate & Enthusiastic Building Company, Offering a Complete Refurbishment and Building Service to Both Residential & Commercial Property Owners.
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Latest review:
Bathroom Fitting- 13 Oct 2015
Reece and his father did a great job in our bathroom and he was a real pleasure to deal with . He went above and beyond the role as he had to order and collect a bath end panel as he suggested it would be a better match from the one I had selected . He was correct in this. He is he first builder I have ever known to suggest an improvement, source it and collect it as part of the job !! I would thoroughly recommend him. :)
TRJ Builders Ltd
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
I do all kinds of carpentry jobs like first fix, second fix and all kinds of joinery work. Also do all kind of lofts.Internal, dormer,Hip to gable.Doing these kind of jobs for more then 20 years. I also done the job for channel 4 last year.If somebody wants to see my jobs done they are most welcome.
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Latest review:
Loft Conversion- 23 May 2017
I had my loft stairs done by Singh. I can only say that he had a great attitude , totally professional. Fully able to listen to what I wanted and provide solutions for any potential problems that came up. Very happy with the end result. The work is of great quality , materials used very good. They said the job will be done in 1 week and this was finished on time as promised. We are now looking at doing more work with them as we are doing a full loft conversion. Would recommend 100%!
Pentire electrician
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
My aim to make sure electric is safe to use and comply with BS regulation and customers are satisfied with my work and happy
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Latest review:
Electrical- 2 Mar 2015
Did the job well, pleased with the outcome of the work carried out. Happy to recall for future work.