Loft Conversion Companies in Blackheath

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (8 reviews)

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Some of our top rated loft conversion companies in Blackheath

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Crimson Design & Build Ltd
Rating: 5 out of 5
Loft Conversion Company in Blackheath
As a contractor I've been in the building business for five years now and my reputation is growing from strength to strength. So far all my jobs have been referrals from previous customers. I've expanded my team and they all know meeting customers's expectations is number 1 priority.
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Latest review:
Firoj and his team renovated a bathroom for me in March 2015. He gave me a fixed cost for his labour and what turned out to be a very accurate estimated cost for all the parts/materials at the outset. He also gave me a completion time of 9 days with 1 extra day for 'spillovers' and 'unforseen delays'. He finished the job at exactly 9 days and still came around on the 10th day to see how everything was working. The quality of his work was excellent, to say the least. He attention to detail was admirable, as was his commitment to delivering a finished product that would last several years. This focus on detail and longevity is something that really sets Firoj apart from other builders, who often see such jobs as just another task to be completed before moving onto the next job. I have no hesitation in recommending him. Several months later my bathroom still looks great and everything works.
Singh Lofts Ltd
Rating: 5 out of 5
Loft Conversion Company in Blackheath
Singh Lofts, building and maintenance have over 52 year’s managerial experience in the construction industry. We are known for our ability to deliver high-quality projects on time and budget. Regardless of a project’s size or complexity, we meet our client’s needs.
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Latest review:
Extensions- 8 Sep 2016
We hired Stone cbm to build our rear extension in Feb 2016 and the job finished on time in April. If there were a best builder award, the winner would be Jas. He is not your typical builder; his communication and execution skills are second to none. He listened to all our requirements like a friend and provide solutions like a pro. We are pleased with the finish. The project is just about on budget and on time, and could have been finished earlier if not for the other tradsman we called in to do other work causing delays. We had all sorts of problems with all the other tradesman and Jas was always there to give us a helping hand. In hindsight, we should have hired jas to do our other work as well as the extension to reduce all the stress. Project managing is much tougher then we thought especially when most of the tradesman out there simply do not care about their reputation at all (even the ones with many good reviews on mybuilder). Jas on the other hand is extremely organized and highly reliable. We would recommend Jas and his team wholeheartedly to anyone and looking forward to working with him again for our next project.
Mels Construction Solutions
Rating: 5 out of 5
Loft Conversion Company in Blackheath
Welcome to Mel’s Construction Solutions, specialising in loft conversions and house extensions. With 15 years of experience, we have gained extensive knowledge and expertise in providing top-quality services to our clients. We offer full building services for Loft Conversions Extensions Refurbishments Bathroom and Kitchen instillations All our work is guaranteed and done to the highest standards with competitive prices given.
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Latest review:
I would highly recommend Meli and use his service again. He is reliable, friendly and extremely personable. Meli saved time and cost by explaining what could be done better. Very talented all rounded experience. He’s a great contractor and I am very satisfied with his work. Thank you Meli!
Panoramic Homes Ltd.
Rating: 4.6 out of 5
Loft Conversion Company in Blackheath
With over 12 years of experience in Civil Engineering & Project Management, we are specialised in Architectural Planning, Structural Designs, construction, renovation and refurbishment works. We have a dedicated team for the type of works. Support from Architects and Civil Engineers, you get FREE professional advice. We are very competitive in the market and give assurance and guarantee of all works. You will have piece of mind with us as we will ensure quality managed work from start to finish.
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Latest review:
Loft Conversion- 15 Jun 2018
Due to circumstances the job has been cancelled as at 15 June 2018. No longer interested in loft room.
SIM Building Services Ltd
Rating: 5 out of 5
Loft Conversion Company in Blackheath
SIM Building Services Ltd is a construction company providing services in Croydon/London and surrounding areas. Our team has over 20 years of combined experience in residential, commercial and interior/exterior construction across all trades. We’re dedicated to a high level of customer service and will take the time to make sure that you are comfortable with the services we are providing.
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Latest review:
Extensions- 18 Sep 2022
Dritan is genuine and a man who keeps to his word. Very happy with him and his team. 100% recommend to others.
Loftnix Developments LTD
No reviews yet
Loft Conversion Company in Blackheath
Loftnix Developments is a trusted, London-based construction company specializing in high-quality loft conversions, home extensions, and full property refurbishments. With over a decade of hands-on experience, we take pride in turning ordinary spaces into extraordinary living environments. From concept to completion, we manage every detail of your project with precision, professionalism, and a personal touch. Our team is committed to delivering work that is not only structurally sound but beautifully finished on time and within budget. Whether you're looking to create a new bedroom in your loft, expand your kitchen, or completely renovate your home, Loftnix Developments brings the craftsmanship, care, and expertise to bring your vision to life. We serve clients across North and Greater London, and our reputation is built on word-of-mouth, repeat business, and high client satisfaction. Get in touch today for a free, no-obligation quote and discover how we can help you maximize the potential of your home.
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GS&M Construction
Rating: 5 out of 5
Loft Conversion Company in Blackheath
GS&M Construction is a solid family run business. we are reputable long standing building contractor. We are Reliable, Conscientious & Personable builders working in london & the south east offering a value for money service.
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Latest review:
Sean plastered my front room ceiling. He was tidy, punctual, cleaned up after himself each day, very polite, friendly and well mannered, and the job was at a decent price. I am very happy with the work - the fact that he cleaned up - I appreciated. I would highly recommend him.
Domi landscape Ltd
No reviews yet
Loft Conversion Company in Blackheath
Domi landscape Ltd Dedicated to transforming spaces into nature masterpieces
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Ovy & Co
Rating: 5 out of 5
Loft Conversion Company in Blackheath
Experienced Tradesman – Carpenter, Plumber, Kitchen & Bathroom Fitter, Outbuildings, Sheds, Extensions, Loft conversions, Full refurbishments. With 20+ years of hands-on experience in the construction and renovation industry, I have developed a solid reputation for delivering high-quality craftsmanship, attention to detail, and exceptional customer service. My expertise spans a wide range of skills, including: Carpentry: Skilled in designing, building, and installing custom furniture, cabinetry, and structural woodwork. Proficient in creating durable and aesthetically pleasing solutions tailored to clients' needs. Plumbing: Comprehensive experience in installing, repairing, and maintaining plumbing systems, including water supply, drainage, and pipework for both residential and commercial properties. Kitchen Fitting: Expert in planning, assembling, and installing kitchens, ensuring a seamless finish and functional layout. Well-versed in working with a variety of styles and materials to meet diverse design preferences. Bathroom Fitting: Specialize in full bathroom renovations, from plumbing and tiling to fixture installation, creating modern and practical spaces. I pride myself on being reliable, efficient, and highly adaptable, with a focus on exceeding client expectations. My ability to manage projects from start to finish ensures that every detail is handled with professionalism and care. If you’re looking for a skilled tradesman dedicated to quality workmanship, I would be happy to discuss your project needs.
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Latest review:
Kitchen Fitting- 21 Aug 2020
I’m a project manager myself, due to the pandemic we have found it difficult to appoint the correct persons on our project, we carefully handpicked our work force, I have to say I was really satisfied with Ovys workmanship, I allowed him and his team to complete my personal kitchen of 19k from wren. Well done 👍🏼 and thank you
RJB Construction
Rating: 4.9 out of 5
Loft Conversion Company in Blackheath
Thank you for visiting my Profile! RJB Construction & Maintenance ltd offer 3 values- quality, Honesty and Reliability! Whether you require a large renovation, bathroom/kitchen refurbishment or small handyman works, I would be happy to help. RJB Construction has been operating for 10+ years and we look forward to welcoming new customers. It would be great to quote on your project today! Thank you
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Latest review:
Hard Flooring- 31 Jul 2026
Rhys did a fantastic job at fitting laminate flooring in my mother’s new place, very respectful, gave good advice and suggestions! Amazingly priced and quick also. Thank you!
Home improvement
Rating: 4.5 out of 5
Loft Conversion Company in Blackheath
“Reliable handyman with 7+ years of experience in flooring, plastering, and general home repairs. I take pride in clean work, clear communication, and finishing jobs on time. Available for small to medium projects — no job too and general plumbing
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Latest review:
Handyman- 15 Aug 2026
They were hired to build a Wendy house with instructions and complained about the instructions, said it was a lot of work and didn’t complete the roof properly. It would have been better if they said they never did it before or said they didn’t understand the instructions. Overall poor communication and overcharged
Best London Lofts
Rating: 5 out of 5
Loft Conversion Company in Blackheath
At Best London Lofts Ltd., we believe that your project should be kept as simple and straightforward as possible, regardless of how complex the task may seem. We have over 10 years combined experience between us in building loft conversions, garages, extensions, roofing and general building.
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Latest review:
Loft Conversion- 4 May 2025
Great service provided by this company, top quality work!! Highly recommended!
HUB Property
No reviews yet
Loft Conversion Company in Blackheath
We provide architect drawings and party wall services. Our expertise, attention to detail, and client-centric approach set us apart. Contact us for accurate and compliant drawings and expert guidance in resolving party wall matters. Satisfaction, professionalism, and integrity are our priorities.
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Rapid roofing Essex
Rating: 4.5 out of 5
Loft Conversion Company in Blackheath
We are a family run combine business & have been trading in the construction industry for over 50 year, working throughout London and the home counties since the 1970's! Starting with my Grandfather knowledge & ability to build an extension right though to building houses! & the same with my uncle's being a professional Plasterer & Roofer that we still continue to compete effectively against companies who frequently come and go as our work force are very dependable & skilled tradesmen! #family
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Latest review:
Roofing (Pitched)- 17 Sep 2018
The job I required was to have some tiles removed and felt pulled back to get to the ceiling void and also to do this around a Velux Window. Jamie kept in touch with my regarding the job and was available for work at short notice, it was clear he knew about the roof tiles I would need. Jamie was very knowledgeable and knew how to get round the Velux window. He turned up with his team and they were very quick with the work and enthusiastic. They completed the work quickly and he even went away and got some extra tiles to replace any already broken tiles and also placed extra felt on to the roof for me. He was very friendly and I would recommend and use again for any roofing work required. He was punctual and ensured that I was happy with the work before he left and showed me what he had done. He was happy for me to pay him afterwards when I had more time.
Zebra Property Limited
Rating: 5 out of 5
Loft Conversion Company in Blackheath
Looking to increase space within your property, restructure the layout, a new bathroom/kitchen or just re-decorate. We do it all. We have put in basements, loft conversions, side returns and even a swimming pool. We provide a 'do it all' service at the highest of qualities for all our clients.
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Latest review:
Restoration & Refurbishment- 20 Jul 2015
We hired Zebra Property for a complete strip out and refurbishment of a GF flat. The JOB: The job included initial removal of existing bathroom, kitchen and flooring. The works itself were for a side return wrap around kitchen extension, basement refit, installation of new kitchen and bathroom, new windows (including velux) and bifold doors, tiling and complete decoration throughout. FEEDBACK: Zebra were a great company to work with on this job. Communication levels were clear. There were inevitable delays to the project but there was always a focus to get back on track and deliver as quickly as possible. The resulting finish is a high standard throughout the property, with any minor snags completed quickly. Thank you!
RJS Innovative Building Ltd
Rating: 5 out of 5
Loft Conversion Company in Blackheath
RJS Innovative Building looks for new designs and technologies available to give our clients the best solutions. We are happy to look at any project. We provide extensive knowledge on interior/exterior refurbishment, extensions/loft conversions, bathroom redesigns/installations, kitchen redesign/installations and revitalising property period features. We have connections with kitchen, tile, natural stone manufacturers FOLLOW AND SEE OUR WORK ON INSTAGRAM. @rjsinnovativebuilding
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Latest review:
Restoration & Refurbishment- 9 Sep 2021
The original job for a bathroom renovation turned into a much bigger job. Raphael and his team ended up helping design and renovate the bathroom, bedroom, living room and hallway. The team helped us source all the materials including underfloor heating and an incredibly intricate mosaic tiled floor in the hallway. They provided practical advise about what was best for the space, what would work within our budget and what would be easy to live with. For example, the team installed underfloor heating in the living room using wood effect herringbone ceramic tiles which would help get the maximum efficiency out of the underfloor heating whilst giving us the wooden flooring look we desired. Raphael and the team were excellent throughout delivering high quality work and we were more than happy with the final results. I would highly recommend Raph and his team.

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Blackheath, are rated 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 Blackheath?

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

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 Blackheath loft conversion company.

Find a loft conversion company in Blackheath 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 Blackheath.

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 Blackheath can view your job and register their interest.

Step 2: Review and compare Blackheath 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 Blackheath 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 Blackheath 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 Blackheath

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 Blackheath?

A local loft conversion company in Blackheath 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 Blackheath 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 Blackheath 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 Blackheath

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 Blackheath before agreeing to start the work.

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

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