Loft Conversion Companies in Lewisham

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.4 (11 reviews)

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Some of our top rated loft conversion companies in Lewisham

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Edmond’s
Rating: 5 out of 5
Loft Conversion Company in Lewisham
Hi, my name is Edmond and I have more than 12 years of experience on carpentry, tiling, flooring etc. I’m very hard working , professional and complete the work to a very high standard .
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Latest review:
Carpentry- 21 Mar 2022
I have hired Edmond to do a number of projects around our house related to replacing doors, all with odd/custom sizing. Edmond was able to assist in sourcing the doors at the best prices, as well as prepping and hanging the doors once they arrived, along with fitting hinges and knobs. I'll be sure to hire Edmond again for carpenter work and could recommend him.
Khalid
Rating: 4.3 out of 5
Loft Conversion Company in Lewisham
Welcome to my all in one service! I am new on this App but i have over 10 years of experience, I specialise in a variety of tasks to meet your needs. From painting flooring and lighting installation to plumbing repairs, kitchen making, and furniture assembly, I provide comprehensive solutions for your home improvement projects. What sets me apart is my commitment to quality craftsmanship, attention to detail, and personalized service tailored to your specific requirements. Whether it's a small repair or a complete renovation.
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Latest review:
Restoration & Refurbishment- 14 Oct 2024
Khalid took the job first day he sent 1 person then he stopped sending and dint answer the phones no communication he left me hanging and wasted a week of my time
JEMS & ROCK CONSTRUCTION
Rating: 5 out of 5
Loft Conversion Company in Lewisham
We are a small but rapidly growing business, with an increasing portfolio of work, completed to a high standard. We also have an equally growing list of satisfied customers. We are confident in what we do and will only undertake work we are sure we can deliver to your expectations and our high standards.
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Latest review:
Plastering- 13 Apr 2021
Very pleased with the work done, punctual and friendly, cleaned up when finished, would highly recommend
Prestige Building Design Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
My name is Warren & has been in the building industry for over 35yrs Began as a carpenter and has developed & moved into all area and aspect of the building industry covering from the least to the greatest, Prestige Building Design Ltd. Are a team of Multi-Skill tradesman, Crafts man & builders which will converts your ideas into reality. Our portfolio covers New build,Extension,Loft Conversions,Renovations,Bathrooms,Kitchens, We pride our self on our ability to deliver & Customer satisfaction
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Latest review:
Extensions- 24 Apr 2023
Warren and his team have been with us for over a year now, first building our extension and then retained for additional work around the house. The quality of work is high, the pricing is very competitive and the team are a pleasure to have around. I am pleased we hired Warren and do not hesitate to recommend him.
A S Builders
Rating: 5 out of 5
Loft Conversion Company in Lewisham
I Have more then 14 years experience as a builder. My team is committed to handling every job small or big with complete dedication and hard work. We believe in giving our customers the best value possible, ensuring outstanding quality of workmanship and offering a friendly experience from start to finish. We do Extension,loft,structure work,plastering,bathroom and kitchen Refurbished
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Latest review:
Loft Conversion- 22 Jul 2018
Loft conversion job completed to a very good standard. No issues with building control. The AS builders team were very professional and showed very good customer service. I will definitely use again for other building work.
shalom property development ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
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.
Goldberg Engineering Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
Chartered Structural Engineer offering design services for: - house extensions - loft conversion - internal alterations - structural surveys - Design of Steel and timber Beams - Design of Foundations and Walls
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Latest review:
Loft Conversion- 14 Oct 2021
Zilvinas produced drawings promptly and at a very competitive rate. He attended several site visits and ensured to incorporate all of our ideas. We have received fantastic after sales service from GoldBerg Engineering throughout the project and would not have had the results we have, without Zilvinas. Goldberg Engineering has provided brilliant guidance throughout, through rapid response emailing, regular Skype and several site visits. Goldberg approved each work phase and continues to offer support. Thank you very much! Highly recommend, 5Star!
H W Carpentry & Building Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
Hi from HW Carpentry & Building Ltd we offer a wide range of services and building knowledge to fullfill your dream home. We are fully qualified carpenters with a building background of over 20 years combined so can offer you a full package to take the stress away from you to complete your full dream and you can put your full trust in us to undertake any work you require.
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Latest review:
Carpentry- 16 Jan 2023
HW Carpentry was absolutely amazing. They came out the same day, were personable and very easy to talk to. They even arranged to chat to the damp specialist we were using to make sure they were on the same page (re the cause and solution for the problem). They booked us in a few days later and finished the job in one day. Ricky was always available for any questions we had and we are so happy with their work! We will definitely use HW Carpentry again! Can't recommend them enough!
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Lewisham
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.
Lambarde Construction
Rating: 5 out of 5
Loft Conversion Company in Lewisham
Lambarde located in the Sidcup area specialise in 1st and 2nd fix carpentry, I’m fully qualified with public liability insurance doing two years of college and getting a NvQ level 1,2 and 3 diploma i also have a great team behind me who also have many years of experience public liability insurance and nvqs. We offer great workmanship at competitive prices, we cover the south east of london and surrounding area.
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Latest review:
Loft Conversion- 11 Jan 2024
We hired Scott and his team to complete a loft conversion and first floor extension at our property. Scott quoted a fair price and kept to this price throughout the project. Scott's immediate team were all very polite, helpful and respectful, not only to us but our neighbours too. The team were happy to fix all the last bits before sign off. The project ran slightly over time but this was mainly due to the difficulty in coordinating with the contractors who did the tiling. Overall we are happy with the end result and we would be happy to recommend Lambarde Construction to other people.
S Marson Plumbing Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
I am a fully qualifed gas, plumbing and heating engineer with over 15 years experience. Based in East London I specialise in boiler installation, underfloor heating installation and all plumbing and heating installations and repairs. Fully insured and all work guaranteed
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Latest review:
Central Heating- 4 May 2019
Sam did an amazing job fitting our new water heater. He was very quick and efficient and his prices were extremely competitive. I can highly recommend him!
Excell building and construction ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
Our company is building reputation step by step and have the best recommendations from our clients.
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Latest review:
Yuriy was recommended by one of my close friends and I wasn't disappointed. Yuriy came up with creative solutions for us to stay on budget. The whole process went smoothly, was handled cleverly and delivered on time. I am happy to give my recommendations at any times.
LivingFunky Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
LivingFunky is a Building Refurbishment and Property Development Company based in London. Our Managing Partner Mr Lindsay Gibbons has worked in the building industry for more than 20 years, managing and working on projects for individual homeowners through to multimillion pound commercial projects. As a Funky Quality Building Company we work with our clients every step of the way transforming and creating funky stylish homes that leave our clients feeling delighted and amazed.
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Latest review:
Plastering- 14 Feb 2017
Their price was competitive, work was of a good standard and they tidied up afterwards. Would use them again.
Nami Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.
easy solution
Rating: 5 out of 5
Loft Conversion Company in Lewisham
At A&W Construction and Renovation Ltd, we have over 15years of experience providing high-quality construction and renovation services across the London. We are dedicated to delivering exceptional results, no matter the size or complexity of the project. Our team offers a 24-hour emergency call-out service, ensuring that we are always available to meet your needs at any time. We work closely with our customers to ensure every project is completed to the highest standards. Our goal is to make sure that every customer is fully satisfied with the results, providing competitive quotes and reliable workmanship. We offer a wide range of services to enhance and maintain your property. From installing brand-new kitchens and bathrooms to converting lofts and building extensions, we provide solutions that add value and functionality to your home. We also provide essential services such as plumbing and electrical work, covering everything from boiler installations to electrical rewiring. Our carpentry and maintenance services ensure that any woodwork or general repairs are handled with precision and care. If you're looking for trusted and reliable builders for your next project feel free to get in touch with us today.
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Latest review:
Tiling- 21 Jun 2021
Great professional and reliable service from Easy Solution. Waqar called me ASAP and arranged to see my bathroom. He came within 1 hour to see the job and gave me an affordable and good quote. He was available to start work immediately. Waqar also suggested the colour of tiles that would suit the bathroom and made some very good recommendations on where i could purchase them at a decent price. My work was done to a high standards. Tiles are neatly put together with grout and they are looking amazing! I had some many relatives comment on them and i have recommended Waqar to them all as i was so satisfied with his service and professionalism in my property. I will be using him always in future. Thanks.
LMG Building Services Ltd
Rating: 5 out of 5
Loft Conversion Company in Lewisham
We are a family run business offering you a personal touch. Work is always completed to a high standard. We are members of the Federation of Master Builders & Our previous customers will be happy to confirm the level of Service, Quality & attention to detail that we provide as standard.
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Latest review:
Conversions - General- 3 Dec 2021
Would 100% recommend Lee. His professionalism and attention to detail was fantastic. Always available for questions outside of working hours (rare for a builder) and an overall nice guy. I'm definitely keeping his number for any future work I do.

4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Lewisham, are rated 4.4 out of 5 based on 11 reviews from customers like you.

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What services are offered by loft conversion companies in Lewisham?

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

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 Lewisham loft conversion company.

Find a loft conversion company in Lewisham 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 Lewisham.

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 Lewisham can view your job and register their interest.

Step 2: Review and compare Lewisham 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 Lewisham 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 Lewisham 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 Lewisham

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 Lewisham?

A local loft conversion company in Lewisham 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 Lewisham 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 Lewisham 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 Lewisham

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 Lewisham before agreeing to start the work.

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

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