Loft Conversion Companies in West Hampstead

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 West Hampstead

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shalom property development ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Shalom Property Development ltd is a small construction company based in the Croydon area. We specialize in property refurbishment, house extensions, loft conversions, garage conversions, etc. We also undertake projects like plastering, painting/decorating, electricity, plumbing, tiling, flooring(laminate, wood, bamboo), bricklaying.
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Latest review:
Plastering- 6 May 2025
Amazing guys. Hardworking, tidy, professional. They worked in our house for 3 months and we were super happy with the work and everything. We invited them to do more work later on. 100% probably the most sincere and trustworthy builders we met. Only them. No one else from now on.
Capital Loft Conversions Ltd
No reviews yet
Loft Conversion Company in West Hampstead
Our company specializing in high-end residential construction, property refurbishments, designing and installation of high-quality custom loft conversions and house extensions across London and the M25. While offering a personalised service, we bring the skills and experience required to ensure your loft conversion is completed to the highest standard and agreed timeline. Whether you are looking to add value to your property or create more space, our team will handle everything from planning permission to architectural design and construction. Use our experience and free initial consultation to understand the value we can add to your home.
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Jwolfconstruction ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
My name is George and I'm running J Wolf Construction building company. I can provide a lot references from happy customers in sw London.
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Latest review:
Extensions- 26 Nov 2019
Great on delivery, good on project management....rate them very high on integrity and transparency
Torrent Plumbing & Heating Solution Limited
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Founded in 2013 by Jav Tajfar, Torrent plumbing & heating solution Ltd provides honest and reliable service to all areas of London. Specialising in all aspects of gas and plumbing installations, we are Gas Safe registered and have over 10 years worth of experience in the industry. No job is considered too small, which is evident in our ability to adapt our services to cater for each individual customer's needs.
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Latest review:
Bathroom Fitting- 26 Jan 2019
Jav and Joe are nice chaps, gave a very reasonable quote and started really quickly (the following day!). We ended up using someone else for the floor tiles after Christmas (we already know them) so these guys took out our old shower enclosure and fittings and fitted new ones including tiling inside the cubicle. There was a damp issue and a leak beforehand- both of which they repaired to a high standard or came up with solutions to so that the job could compete in time for Christmas. They explained all our options well. They went out to get extra materials without an extra charge and worked at a weekend to get it finished in time. Pleased with the finish and I hear metro tiles are particularly difficult to get spot on. I would have liked a more comprehensive quote beforehand but they provide me with this on request and the job finished on budget except for the work around the unexpected damp which was a small extra charge and we were told about this before we went ahead with the extra work. Good all rounders who can do a whole job like this, altho for anything particularly specialist (such as complex patterned or mosaic floor tiles) I chose to use someone who just does tiling and that id already used- although they do work with a specialist themselves for such jobs and his work examples looked high quality so no need to source anyone extra if you want them to manage the whole thing for you. Would use again.
Prab builders ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Prab Builders is one of the leading and fast growing constructions companies in the UK who take projects and work in a atmosphere where one can get everything under one roof. We have a team of experience people and we understand what our clients want. And as result we give total satisfaction to our customers and convert ideas into reality to give our best We are in this field from the past 18 years .Our service is professional,caring,and high quality and Customers are our First Priority
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Latest review:
Extensions- 8 Dec 2021
Me and my wife are very satisfied with Prabbuilders work. What stands out with Prab builders is that they do every task as if they are doing it for their own house and with work they are meticulous and exceptional. What we started with and how our extension looks now is simply amazing and the way they explain about what will look good(Color/ the structure etc ) is commendable as we both were not sure what decision to make, but after completion we are overjoyed to see how excellent it turned out to be now. I would recommend them anytime based on their skill ,eye for detail, being punctual and the hard-work they invest into every task to make sure we are getting the final product the way we dreamt of.
Primavera Construction LTD
No reviews yet
Loft Conversion Company in West Hampstead
We specialize in domestic projects (inc. home extensions, loft conversions, refurbishments and new builds), delivering projects from design concept (Planning Stages) through to Construction and Turnkey Completion. CONSTRUCTION EXPERIENCE: 8 yrs working on complex £100M+ projects across London, 2 yrs working on new build £5M+ project in Chigwell, as well as many smaller domestic projects. PLANNING EXPERIENCE: 10+ yrs of securing planning applications across London and the surroundings.
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Redmark Contractors Limited
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Redmark Contractors Limited have over 10 years experience, and with many years experience in the building trade. We are a professional team are reliable builders operating in London and the wider area. We take great pride in all work which we undertake, taking great care to make sure that our client’s needs are met in a meticulous and professional manner.
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Latest review:
Extensions- 27 May 2025
They helped build me two houses and were always putting their best foot forwards. Bhupinder and his team are lovely, and are now like family to me. They have a bright future ahead for themselves and for the clients they look after.
Vullcan Construction
Rating: 1 out of 5
Loft Conversion Company in West Hampstead
We are a CHAS and Safe Contractor accredited organisation specialising in the provision of bespoke and high end specifications in relation to all aspects of internal refurbishments for both contemporary and period properties, in addition to commercial fit-out works, as well as small to large scale structural alternations. Our clients choose us for our experience and strong level of communication during our projects, our highly competitive rates and the high level of quality of our finish.
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Latest review:
Extensions- 25 Aug 2020
I did my due diligence on Vullcan, but things went downhill. After a week i got a pre-tax invoice for £3000 for a more "complex" drainage system which was already completed, this was the start of them trying to get around contract items and look for every way possible to charge extra fees which i can’t go through in the word limit here. When that dint work they refused to do the work. e.g. they literally installed a tempered glass sheet, with liquid glue on my roof and stated to me that this was a "roof window". I had to show them buildings regulations that this was unacceptable and illegal especially when our contract said it has to be a VELUX ROOF WINDOW! Promised a 6-8 week completion, this is 9 months later. I had now paid about 90% of the original bill and 100% of additional costs. The final payment was due after completion and a 2 week snagging period. But the demand for payments started, with threats to sue. This was laughable as they hadn't completed the job. •The roof was leaking •Electrical issues with the fuse box and multiple light /electrical points •Outstanding items •The buildings controls company stated they would not be able to sign off on the building work because of outstanding issues, which I wouldn’t have even known as they lied stating they HAD the certificate. I agreed to send a FULL payment to an escrow company and pay HALF of the costs so they can complete and fix safety issues but they refused! Shameful experience.
SMAA Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Hi, my name is Adrian a master in building by now with over 15 years of working experience in the building industry passed down from generation to generation.Me and my team guarantee quality and dedication towards the projects we receive and treat them as our very own. We specialise in all means building with a specialist in each domain.
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Latest review:
Restoration & Refurbishment- 2 Jun 2025
Adrian and his team were reliable, punctual and detailed with their work. Finish was great. Touched up the paint in surrounding walls due to dust and marks from the ceiling. slightly pricier than other quotes we received but we felt at ease with Adrian so went ahead.
BL Carpentry
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
Hello! My and my team are working on all kind of construction projects trough London. We've got 15 years of experience and many happy and returning clients.
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Latest review:
Multiple fitting out works, eg fitted cupboards, kitchen fitting. Top notch. Knowledgeable, fair, prompt. Would enlist his help again.
GENERAL REFURBISHMENT
Rating: 4.3 out of 5
Loft Conversion Company in West Hampstead
Professional building team who offer professional, efficient and very affordable service to guarantee customer satisfaction. With over 14 years experience in the building industry - residential and commercial in England and Greece .
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Latest review:
Bathroom Fitting- 3 Feb 2019
I have refurbished the bathroom first which Livio team undertook all of the works including electricity; plumbing, tiling and general make good. When works were finished in the bathroom I also asked them to do some works in my loft room. All the works were caried out to a very high standard. I am very pleased with the outcome and I shall call for their services for other works around the house in the near future .i would highly recommend them.
Ironbark Interiors
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
I have spent the last 15 years working on developing my carpentry skills whilst pushing my design creativity. Creating bespoke kitchens, bedroom, bathroom and all other residential and small commercial Interior work. From concept to design I enjoy and love working with clients to find what is it they really want and what really amazes each of us as individuals. From this point the build to install process is handles with care and passion.
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Latest review:
Tiling- 25 Feb 2026
Job was quoted at a very good price, turned up on time and work was completed to a very high standard! Very happy with the tiling job. Nice tidy work with no mess left behind, would highly recommend Ironbark for your Tiling job.
SHIVAY DEVELOPMENTS LTD
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
From Concepts to Creations, Shivay Developments Ltd has combined experience of over 15 years in Construction trade. Our team consist Expert Tradesmen and Experienced Project Managers with a single point of responsibility and accountability throughout the construction process.
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Latest review:
Loft Conversion- 3 May 2020
Happy with the work completed. Resolved any issues quickly. Would definitely use again.
BSD Design & Build LTD
No reviews yet
Loft Conversion Company in West Hampstead
🏗️ Build with Confidence – Build with Us! 🏡 B.S.D Design & Build is a proud member of FMB. Not every builder is a Master Builder! In an unlicensed industry, choosing a Federation of Master Builders member gives you peace of mind, knowing we meet strict entry criteria and undergo continuous monitoring. ✅ Expert Craftsmanship ✅ On-Time & On-Budget ✅ Built to Last Trust the professionals. Contact B.S.D Design & Build today! 📞🔨
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Rutba design & build ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
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
i loft Conversions ltd
Rating: 5 out of 5
Loft Conversion Company in West Hampstead
We are lofts specialist covering East London for over 20 yrs. We pride ourselves on customer satisfaction, quality & speed at sensible pricing. Our team is highly qualified & all works come with trade certificates & a 10 yr guarantee on materials & workmanship. We can create as little as a loft shell, to a fully completed loft from start to finish including; drawings, project mgt, building control to decoration to allow you to sit back & enjoy the progress within as little as 5-6 wks.
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Latest review:
Extremely professional. Workmanship is of high quality. Very reliable. He redesigned & rebuilt our kitchen with a utility room & walk in shower room. He rebuilt our shed & converted into a usable work area and redesigned our garden.

4.3

Top rated Loft Conversion Companies

Our Loft Conversion Companies in West Hampstead, 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 West Hampstead?

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

Find a loft conversion company in West 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 West 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 West Hampstead can view your job and register their interest.

Step 2: Review and compare West 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 West 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 West 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 West 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 West Hampstead?

A local loft conversion company in West 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 West 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 West 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 West 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 West Hampstead before agreeing to start the work.

Do I need planning permission for a loft conversion in West 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 West 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 West Hampstead loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.