Loft Conversion Companies in Swiss Cottage

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.4 (12 reviews)

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Some of our top rated loft conversion companies in Swiss Cottage

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Vasile Balta
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Thank you for reading this I’m Vas( owner of BALTA COMPLETE CONSTRUCTION LTD)from 16 started as a apprentice in construction industry, have work over the years on big projects also small ones , when I was about 30 years old whit lots of experience in house refurbishment, extensions and lofts , decided to open my business, it was the best idea I take Ower focus as a business is a hight quality service, on all projects(big or small) and the feedback from the profile prof this As a person in charge whit the projects, I’m very easy to talk to, friendly , also more than happy to sort issues out Thank you for reading this As a business ower focus is on quality, high end finishes and trat each coustumer whit respect, and live them happy after the project is finished
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Latest review:
Conversions - General- 24 Apr 2026
I recently had extensive work completed in my flat by Vas, and I couldn’t be happier with the result. The service was excellent from start to finish. Not only was the quality of the work consistently high, but the whole experience was smooth and stress-free. What really stood out was Vas’s level of skill and versatility. Every aspect of the project was handled with care and professionalism — from plumbing and new water heating pipes, to new electrics, installing a new kitchen, laying a beautiful wooden floor, renovating the bathroom, and even replacing doors with a sliding door system. Each element was completed to a very high standard. On top of that, Vas was friendly, proactive, and easy to communicate with throughout. Nothing ever felt like too much trouble, and it was clear he takes real pride in delivering great results. It was genuinely a pleasure to deal with Vas, and I would highly recommend his services to anyone looking for reliable, high-quality work. Thank you again!
JH CITY PROPERTY CONSTRUCTION
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
JH City Property is a London-based renovation company delivering high-quality residential and commercial projects. With over 18 years of experience, we specialise in full property refurbishments, including painting and decoration, flooring, kitchens, bathrooms, roofing, and structural works. All projects are carried out by our in-house team, ensuring consistency, reliability, and attention to detail from start to finish. We focus on practical design, durable finishes, and delivering work to a high professional standard. We offer free site visits and quotations, and can also provide initial estimates from photos or floor plans.
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Latest review:
We had the outside of our house painted by JH City Property Construction and honestly they done such a good job. The house looks completely fresh and clean now. The team were really friendly, turned up on time every day and kept everything tidy while working. They also took their time with all the preparation instead of rushing through it, which definitely shows in the final result. The paint finish came out really smooth and neat, especially around the windows and front of the house. We’re really happy with how everything turned out and would happily use them again in the future.
TechnoHeat
Rating: 4.8 out of 5
Loft Conversion Company in Swiss Cottage
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.
PACHO CREATE LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Pacho Create specializes in high-quality loft conversions, home extensions, and full refurbishments—transforming homes into beautiful, functional spaces. With a focus on craftsmanship, planning, and client satisfaction, we bring your vision to life on time and on budget. Let me know if you want a more premium, modern, or friendly tone.
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Latest review:
Tiling- 24 May 2026
I cannot recommend John from Pacho Create Ltd highly enough. I'm a very particular client with high standards, I was impressed by his care, patience, and professionalism throughout. He clearly takes pride in delivering quality work and paid close attention to every detail. Living in a small flat, I was concerned about dust, but John proactively created a solution to minimise disruption, which I really appreciated. He also gave excellent advice on budget-friendly waterproofing products. We had a challenge with large-format tiles, but John worked closely with me to plan the layout, ensuring a natural, balanced finish. The workmanship is outstanding – minimal wastage, precise alignment, and superb attention to detail. I wouldn’t hesitate to use John again, in fact, I’m already planning to have him back to tile around my bath in the near future. I highly recommend him to anyone looking for a skilled, reliable professional.
Ffb builders ltd
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
I have a small Building company and have guys that work for me .Between us we do lofts, extension, full refurbishment, decorating, painting, plastering, plumbing, electrics. any anything to do with domestic. I have been on this business for 20 years and have done lots of jobs in east London which are available for customers to see the quality of the finish that we do.
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Latest review:
Restoration & Refurbishment- 28 Apr 2022
Forcim did an amazing job in renovating our London flat- it looks like a completely new property! Throughout the process Forcim was incredibly responsive, providing regular updates, and proactively keeping us informed. He provided solutions to any problems, and clearly very knowledgeable in his trade. His prices were very transparent, and although not the cheapest quote, was well worth paying the extra given the high quality of the finish on all areas of the work (e.g., tiling, plastering, painting and carpentry). On this project, although we were not in the country, Forcim went above and beyond to project manage and ensure that the flat was in impeccable condition when we returned. We would definitely use him again for any future works, and could not recommend him highly enough.
KG DESIGN & BUILD LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Hi I`m Kleida .I worked in Building industry for a while now and I have built a quite a knowledge on extensions loft conversion and refurbishment . I recently decided to start working for myself .I also have a very good working team with various knowledge on various stages of projects .
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Latest review:
Loft Conversion- 26 Feb 2025
Very polite and considerate, asked if he should take his shoes off on arrival which was much appreciated. Very knowledgeable and I can tell he takes a lot of pride in his work and wants to do a proper job, that will last. For the amount of work the estimate seemed very reasonable. I cannot comment on the work because I have decided not to go ahead, only because a lot of work would be needed on the first floor, which I hadn't realised. Based on my experience I'd recommend.
Shapesmakers LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Shapesmakers are a small construction company with combined experience of 20+ years in various construction tasks and projects. Our aim is to provide a reliable and quality for our project as well as peace of mind to your customers. We thrive on challenges of each project and exceeding expectations of our clients.
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Latest review:
Conversions - General- 24 Sep 2025
Mario carried out a great job at my apartment. He took off the wallpaper from 3 walls in the living room, plastered and painted them making them like new and carried out a small restoration project of my stairs. He’s very reliable, experienced and easy to communicate to. I highly recommend Shapesmakers
Smart Designs Constructors ltd
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
SMART DESIGNS CONSTRUCTORS Ltd. has over 23 years of experience in building and construction, interior renovation, exterior renovation, painting, decoration, kitchen renovations and remodels, bathroom renovations and tiling, and loft or garage conversions. Additionally, we have a liability insurance policy worth 5 million pounds, we are Master Builders registered partners, and Chas health and safety registered.
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Latest review:
I used Smart Designs to carry out internal & external work and mould repair on my flat, I was very impressed with their communication throughout, they visited the property promptly and started work when they said they would. The work was completed sooner than the original date and has been finished to a high standard. I would highly recommend them.
Ogival Ltd
Rating: 4.5 out of 5
Loft Conversion Company in Swiss Cottage
Ogival Ltd, located in North Kensington, is a trusted local builder with extensive experience. Your one-stop provider of home refurbishments, property modifications, and alterations What separates Ogival from our competition is our exceptional service and support. We thrive on being a unique, personable company because building trusting relationships with our customers ensures a successful and enjoyable renovation project. We offer a full range of building services, from major rebuilds to smaller jobs We offer a 6-month Warranty on labour.
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Latest review:
I have used this company for years for many different jobs including painting my whole house, tiling my bathroom, laying flooring, astroturfing my garden and also putting up fences too, they are very knowledgable, professional and polite, the work is always done efficiently to a very high standard and I’ve never had an issue. I recommend Emanuel and his team to everybody. If you want a company that care, I’d stick with Ovigal!
E&E Plumbing and Construction LTD
Rating: 4.6 out of 5
Loft Conversion Company in Swiss Cottage
About Us Based in London, our construction company proudly offers a comprehensive range of building and renovation services across the UK. With expertise spanning from minor renovations to major projects, we are committed to delivering high-quality craftsmanship and exceptional customer satisfaction. Our Services General Construction & New Builds: Turning your vision into reality through bespoke new build projects, tailored to your specifications and delivered with precision. - **Loft Conversions:** Maximize your property's potential with expertly crafted loft conversions, providing additional living space and increasing your home's value. - **Plumbing & Electrical Works:** Providing reliable and efficient plumbing and electrical installations, upgrades, and repairs to ensure safety and functionality. - **Housing Projects:** Specializing in house extensions, loft conversions, and structural modifications to enhance your living space. - **Roofing Solutions:** Expert roofing services including flat roof installations, repairs, and fiberglass coatings to protect your property. - **Window Installations:** Supplying and fitting modern bifold windows that enhance aesthetics and improve energy efficiency. - **Additional Services:** We also undertake a wide range of structural and decorative renovations, ensuring a seamless integration of new elements with existing structures. No matter the scale of your project, we are dedicated to delivering quality workmanship, on time and within budget. Contact us today for a consultation and let us bring your construction ideas to life. E&E Plumbing and Construction LTD
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Latest review:
Plumbing- 15 May 2026
They were really fast to book in an appointment and communicated well. They also did a great job, exactly what we needed, and very friendly. Thank you!
Builders Are Us Ltd
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
With over 10 years’ experience in Loft Conversions, Extensions and Refurbishments, BuildersRUs offer the complete home service. Our dedicated team will help you transform your home, managing all aspects of the process including design, planning, regulations and completed build to the highest specifications. Let us realise your home’s potential, creating your ideal master bedroom, a kid’s gaming room, a quiet home office, or that dream kitchen. Call us today for great work at great prices.
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Latest review:
Bili did a amazing job. He and he's team has been extremely helpful and very professional. Bili listened, made good suggestions, clean and always on time. They finished the job perfectly and on schedule. It was pleasure working with Bili and his team and I would recommend them without hesitation.
Loftlo
Rating: 4.5 out of 5
Loft Conversion Company in Swiss Cottage
We have been in business for 15 years. Our profit is customers satisfaction. Perfection is the passion in our team. Seventy percent our business is return customers. We believe in service based on quality & value for the money.
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Latest review:
Gas Work- 3 Jun 2020
Right on time very professional, did a very good job, worked in a clean and tidy manner, well pleased thankyou
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
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.
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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.
REVOSPACE CONSULTING LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
Revospace – Building Better Spaces Revospace delivers high-quality refurbishments and property improvements across London and surrounding areas. With years of hands-on experience in residential projects, we understand how to combine strong workmanship with structured project management to deliver results on time and within budget. We have worked on full refurbishments, kitchens, bathrooms, flooring, carpentry, decorating and general building works. Our background in site management means we don’t just complete jobs — we plan, coordinate and manage them properly from start to finish. Based in London, we operate across Greater London and Essex, and are happy to travel for the right project. Our strengths include attention to detail, reliable scheduling, transparent pricing and clear communication throughout every stage of the job. We respect your home, keep sites clean and ensure work is completed to a high standard. At Revospace, we believe in doing things once and doing them properly — no shortcuts, no hidden surprises. Quality work. Clear communication. Professional delivery.
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Latest review:
I recently had a full kitchen installation carried out and I’m really pleased with the results. From start to finish, the work was completed to a high standard and everything was done with great attention to detail. The installer was professional, punctual, and easy to communicate with throughout the project. Any issues or questions I had were dealt with quickly and clearly, which gave me confidence that the job was in good hands. The workmanship is excellent – everything is level, neatly finished, and exactly as discussed. They also kept the workspace tidy each day and made sure everything was cleaned up properly once the job was complete. The kitchen looks fantastic and has completely transformed the space. I would happily recommend them to anyone looking for a reliable and skilled kitchen installer, and I would definitely use them again for future work.
Monte Design LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
With over 25 years of refurbishment, building and decorating projects, I have a wide skill base. More than 80% of new work is based on client recommendation highlighting our punctuality, reliability and high standards. I manage a flexible team of highly skilled tradesmen according to each project.
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Latest review:
Bathroom Fitting- 20 Mar 2026
I'm super thrilled that I chose Monte Design to fit both my new bathroom and kitchen. Monte ripped out the old bathroom and kitchen and installed all new ones. The transformation of the two rooms is such a piece of professional work to marvel at. Both rooms had challenging structured walls but Monte worked their magic and made the installation look so natural. With Monte, I got exactly what I wanted and what I paid for and more!
SIXTHART LTD
Rating: 5 out of 5
Loft Conversion Company in Swiss Cottage
We are an Architectural and Interior Design Studio. We effective planning and technical drawing services. Our Services - Site Survey -All Drawings with Cad Software (Demolish/Proposed) - Draft Planning - Pre Advice Planning - New Build Design - Loft Conversion - Home Extensions - 3D Visulation -Kitchen &Bathroom design projects - Preparation and submission of planning applications - Hourly\Daily Based CAD Services - 3D Modelling (Internal & External Visualisation) -Member of TAG (Traditional Architecture Group) -Bachelor’s Architectural Design Practice -NAAB -TMMOB
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Latest review:
Extensions- 16 Sep 2024
Erhan was excellent. He followed my project from start to finish and kept me updated throughout. Here to the next project!

4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Swiss Cottage, are rated 4.4 out of 5 based on 12 reviews from customers like you.

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What services are offered by loft conversion companies in Swiss Cottage?

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

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 Swiss Cottage loft conversion company.

Find a loft conversion company in Swiss Cottage 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 Swiss Cottage.

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 Swiss Cottage can view your job and register their interest.

Step 2: Review and compare Swiss Cottage 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 Swiss Cottage 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 Swiss Cottage 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 Swiss Cottage

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 Swiss Cottage?

A local loft conversion company in Swiss Cottage 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 Swiss Cottage 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 Swiss Cottage 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 Swiss Cottage

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.