Loft Conversion Companies in Hampstead

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (11 reviews)

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Some of our top rated loft conversion companies in Hampstead

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Blueline Enterprise Limited
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Blueline Enterprise is a family run firm specialising in high quality refurbishments, extensions, conversions and new builds. We have undertaken various projects through professional architects and private clients. We a reputable building construction firm based predominantly in North West London.
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Latest review:
Blueline completed the work to the exact high standard i was hoping for, while remaining on budget and estimated timescales - the three things that were most important to us! They were punctual, practical, knowledgeable and willing to give advice when either needed or when something could potentially be improved. They were always available to talk through what was happening at every stage of our job, with any complications arising, and importantly solutions to any problems. They knew their stuff and got the job done without any hassle either. They even came back after the job was finished to shift some pipework which i had an extra requirement for. The best feedback i could give is that we will go straight to them for any work we require in the future, and have already recommended them to friends.
ZDRAVA PROPERTY MANAGEMENT LIMITED
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Renovation and Restoration
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Latest review:
Restoration & Refurbishment- 29 Sep 2023
Renovated my 3 rooms and made it brand new again:) did a very good job and more, very reliable and did the job in a very good time frame, I am loving my house Would definitely Recommend
JC HOMES CONSTRUCTION LIMITED
Rating: 5 out of 5
Loft Conversion Company in Hampstead
JC homes construction specialises in a wide variety of carpentry and construction services. John and Dermot have a combined experience in carpentry and construction totalling 40 plus years and can help design and deliver home improvements which are second to none! Services include loft conversions, extensions, traditional hand cut roofs, truss roofing, flat roofing, timber and steel frame structures, doors, kitchens, Flooring, staircases and fitted furniture. We are new to MyBuilder!
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Latest review:
Decking- 25 Apr 2022
John and his team did an amazing job on my decking. Very speedy and quality service - would definitely recommend.
D Alexa Ltd.
Rating: 5 out of 5
Loft Conversion Company in Hampstead
I'm a self-employed builder with more than 14 years experience. I really enjoy my job as my work changes the whole view of my clients property. I always make sure my jobs are finish to a high standard as my clients hire me for a service & I believe they should always get the best
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Latest review:
Restoration & Refurbishment- 13 Aug 2019
David and his team were excellent. They are always on time and very professional. They always cleared up at the end of the day thereby leaving very little dust or dirt around the house. No query or issue was ever insurmountable; the answer was always "no problem", which was a joy to hear when having such a large project to do. Each different team i.e. electrician, plumber, arrived exactly on schedule so there were never any delays. The end result was amazing. I highly recommend David and his team.
LOFT CONVERSION ART LTD
Rating: 5 out of 5
Loft Conversion Company in Hampstead
I undertake loft conversions, painting and drylining, kitchens, bathrooms, render and plastering lastly Stucco Veneziano. I have over 30 years of experience. I speak 3 different languages those being Greek, Albanian and lastly Romanian. All my customers have been happy with my work and y
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Latest review:
Carpentry- 15 Nov 2025
Amazing an so quick definitely recommend and will use again !!!
Onyx Services Limited
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Onyx services Ltd which is part of the Wigwam construction Group has been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction, plastering, painting as well as heating, plumbing & electrical installations. Onyx has £5 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.
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Latest review:
Gas Work- 26 Oct 2025
I was able to get my own boiler and just pay for the extra material and installation. Not all traders accept this. The price was very competitive. I was sceptical at the start but was reassuring on how quickly the job was completed. There was an issue with the thermostat but was sorted out the following week. The gas certificate, building compliance and boiler registration was completed promptly. Would definitely recommend, please allow Shami to quote before making a decision, you won't be disappointed.
30 Day Extensions Ltd
Rating: 4.8 out of 5
Loft Conversion Company in Hampstead
COMPLETED 130 projects since lockdown•WIMBLEDON & SURBITON SHOPS now open. FREE- architectural and design services if you use us. •Fantastic reputation, reviews on google and webpage. • Speed, we build shell in 30 days. •priced by a QS and we add 15%. Simple! • •Highly skilled reputable teams. • Guarantees that mean something. • Peter snelson, the CEO has over 40 years experience in the industry internationally and nationally. A member of The Federation of Master Builders.
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Latest review:
Loft Conversion- 6 Mar 2018
Loft conversion. We were delighted with Peter and his team. We were impressed with the hard work shown by all of the builders on site. We were particularly impressed by the speed(2 months) and quality of the work at a competitive price. There was surprisingly limited disruption to family life. Most access was from outside with toilet facilities also located outside. As with all big builds issues will occur. These issues were dealt with switly in a professional manner. We would highly recommend Peter and his team
NLD Construction LTD
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Hello, we’re NLD Construction LTD - a reliable construction company specialising in extensions, loft conversions, refurbishments and all general construction work. With 25 years of experience, we deliver quality results on time and within budget. Let’s get your project started!
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Latest review:
It has been a pleasure to work with Arbi and the team for my refurbishment. They have a very professional and efficient approach on all matters. The quality and reliability of the work is unmatched. Everything was completed accorded to plan and on time despite my last minute adjustments. I highly recommend the team at NLD.
Beam Developers ltd
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
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Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
BUILDING BLUEPRINTS
Rating: 5 out of 5
Loft Conversion Company in Hampstead
A highly experienced and qualified contractors from a Carpentry & Joinery background. Taking on diverse scoped projects ranging from Domestic to Commercial.In the residential sector from renovations and refurbishments at the same time carrying many trades in house. We are ready for your project
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Latest review:
Carpentry- 19 Sep 2015
Not only was Ian's quote to do the loft conversion very reasonable, he was very reliable, tidy & very helpful when we had a difficult situation. The work was done in a quick time, when he said he was going to be on site he was, at no time did he let me down. The standard of work was excellent, I would recommend Ian & wouldn't hesitate to use him in the future.
D.L.CONS LTD
Rating: 5 out of 5
Loft Conversion Company in Hampstead
Hi, I’m Dan, the owner of D.L.CONS LTD – a small, skilled, and reliable building company based in E9, London. With 25+ years of experience, I’ve pretty much done it all – and done it well. I specialize in bathroom and kitchen fitting, bricklaying, painting & decorating, and carpentry, and over the years, I’ve worked on everything from domestic extensions to shop renovations. Whether it's transforming a small bathroom or building an entire extension, my team and I focus on quality, precision, and attention to detail—because great craftsmanship speaks for itself. We mainly work in E9 and the surrounding high-end postcodes—Hackney, Victoria Park, London Fields,and Islington. If you're looking for top-quality workmanship with no shortcuts, I’d love to hear about your project. Let’s build something great together.
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Latest review:
Carpentry- 8 Apr 2026
I’m really happy with the work carried out. He came in to fix my steps after a previous builder had damaged them and left them unstable, and the difference is night and day. Everything now feels solid, secure and properly finished. He also fixed the skirting boards and installed my desk, all to a very high standard. What I really appreciated was how professional he was throughout and the advice he gave along the way, which showed real experience and care for the job. Overall, a really high-quality finish and a great attitude. I wouldn’t hesitate to recommend him.
ABETA GROUP LIMITED
Rating: 5 out of 5
Loft Conversion Company in Hampstead
ABETA GROUP LIMITED covers a wide range of construction services offered by our team of professionals.
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Latest review:
Kitchen Fitting- 30 Nov 2020
Aurenc was very helpful and accommodating. The work was well done. All the persons were respectful and clean.
Leo81
Rating: 5 out of 5
Loft Conversion Company in Hampstead
I am good at what I do and I'll do my best to get your house to look the way you want it to!
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Latest review:
Restoration & Refurbishment- 19 Apr 2025
Positively, certain aspects of the finishing, particularly tiling, were carried out to a good standard. However, the overall experience was mixed due to significant issues. There were notable challenges during the project involving basic logistics and site management, leading to considerable inconvenience that seemed avoidable. Furthermore, the quality of workmanship was inconsistent; while some parts were good, other areas involving fittings and fixtures showed a lack of attention to detail in the finish, requiring later adjustments. Communication during the process could also be difficult, particularly regarding problem-solving and planning for materials. While we appreciated the parts done well, the project was let down by these inconsistencies and process issues, leading to some ongoing snagging and disappointment.
AMG LONDON LTD
Rating: 5 out of 5
Loft Conversion Company in Hampstead
AMG places great emphasis on the importance of up to date methods of design and construction. As a key player at the forefront within the market place we specialize in building Extensions, Loft conversions, Drylining, ceilings, painting and decorating to complete internal building fit out.
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Latest review:
Stefan did an extension for my flat from the installation of structural steel, to the roof, and demolition. To building the shell and all cosmetic work inside. I am very happy with the work. Time keeping was good, pricing was good he was open and honest throughout, he was very tolerant and easy to work with. Always positive and willing to help if there were any issues. He would help resolve any issues in the quickest and best way possible. Very happy. I would happily recommend him.
Foryourservice
Rating: 5 out of 5
Loft Conversion Company in Hampstead
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.
Benny Neagu
Rating: 5 out of 5
Loft Conversion Company in Hampstead
I am a builder with more than 25 years experience mostly gained on conversion, refurbishment and property maintenance for various building contractors and private clients. I have worked for my self since 2006 doing jobs ranging from loft conversions, extensions to small maintenance items.
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Latest review:
Joinery & Cabinet Making- 16 Dec 2016
Benny did a great job boxing in pipes and electrical wiring in both the kitchen and utility room. In particular he framed the consumer unit in the kitchen with a single piece of laminated mdf whilst concealing all the pipes and wires in the vicinity. Some of the angles were quite tricky, but still the mdf was cut to 100% accuracy. In the utility room where he used unlaminated mdf, the finish of his work was done to a very high standard with all the end grain of the mbf filled with two pack filler, and sandpapered ready for painting. The pipes were somewhat irregular, but the final look, with new architraves, minimises the impact of the boxing in. I will engage Benny next time I require carpentry to be done to a high standard. Alan Roberts

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Hampstead, are rated 4.6 out of 5 based on 11 reviews from customers like you.

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What services are offered by loft conversion companies in Hampstead?

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

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 Hampstead loft conversion company.

Find a loft conversion company in Hampstead 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 Hampstead.

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 Hampstead can view your job and register their interest.

Step 2: Review and compare Hampstead 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 Hampstead 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 Hampstead 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 Hampstead

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 Hampstead?

A local loft conversion company in Hampstead 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 Hampstead 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 Hampstead 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 Hampstead

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 Hampstead before agreeing to start the work.

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

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