Loft Conversion Companies in Keston

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (9 reviews)

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Some of our top rated loft conversion companies in Keston

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easy solution
Rating: 5 out of 5
Loft Conversion Company in Keston
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.
DUNAMIS CONSTRUCTION LTD
No reviews yet
Loft Conversion Company in Keston
At Dunamis Construction Limited, we offer a comprehensive range of construction and home improvement services tailored to your needs. From renovations and extensions to commercial fit-outs and bespoke builds, we ensure quality, efficiency, and precision. Our expert team delivers seamless solutions, transforming spaces with simplicity in construction, excellence in execution.
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GMAS Carpentry
No reviews yet
Loft Conversion Company in Keston
Carpentry ,timber frame,doors,kitchens,
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The london Loft and Kitchen Company
Rating: 4.5 out of 5
Loft Conversion Company in Keston
We are a southwest London Based loft and kitchen extension specialist. Our working area is very small with 90% of our jobs in Wandsworth and any work outside this area is never more than a mile or two away. With over 15 years experience in this area we know inside and out how these properties were built so when it comes to structural alterations you couldn't be in safer hands.
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Latest review:
Loft Conversion- 30 Jan 2018
Still waiting for David to fix issues and complete work. Have been trying to contact him for 2 months now with no luck. Really disappointed to leave this feedback but genuinely not able to get in touch with him and don't know how else to get his attention now.
BLE CONSTRUCTION LTD
Rating: 5 out of 5
Loft Conversion Company in Keston
BLE stands for Best Lofts & Extensions.We are a professional building company based in South West london. BLE are specialist in loft conversion,home extensions,garage conversion,as well new builds.We also conduct any projects such plastering,brickwork and all interior and exterior works.
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Latest review:
Loft Conversion- 12 Feb 2024
We have nothing but praise for Mariusz and his team. If you are looking for someone honest, hard working and highly skilled then Mariusz is your man. We had a double storey side extension plus loft conversion. We are extremely happy with everything and shared Mariusz' details with our friends and family, some of which have also had work completed by him. A million thank yous and we will use you again when future work needs doing. Highly recommended.
Denis & Kelvin LTD
Rating: 5 out of 5
Loft Conversion Company in Keston
Hello im Fredi, I am a experieced builder and would like to deliver quality work to all my customers.
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Latest review:
Restoration & Refurbishment- 26 May 2024
Great work, punctual and informative. Would hire again for sure.
Olney Loft Conversion LTD
No reviews yet
Loft Conversion Company in Keston
I've been doing loft conversion for the last 15 years. I have extensive know on the building process. I have now started my own side company installing laminate and LVT flooring.
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CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Keston
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.
Porter Avery Carpentry
Rating: 5 out of 5
Loft Conversion Company in Keston
I am a carpenter with over 20years experience, who can deliver high standards on all aspects of carpentry wether it be bespoke fitted wardrobes, kitchen installations or traditional cut roofs.
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Latest review:
Carpentry- 13 Jul 2021
Has done an amazing job
S Marson Plumbing Ltd
Rating: 5 out of 5
Loft Conversion Company in Keston
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!
Calibra damp proofing LTD
No reviews yet
Loft Conversion Company in Keston
Welcome to Calibra we are a family run company specialising in architectural services , damp proofing , general building & a bespoke design and build services all these services under one roof to bring you a seamless service you will be sure to recommend
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Nami Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Keston
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.
Zbuilders
Rating: 5 out of 5
Loft Conversion Company in Keston
Project ends, but safety never ends.
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Latest review:
Central Heating- 7 Oct 2022
I very strongly recommend these guys. They work hard. They know what they are doing. They are very pleasant, polite and respectful. And they arrange doing the job conveniently. Also they troubleshoot diligently to make sure everything is on track and stays on track. A very positive experience indeed.
WWC Ltd
No reviews yet
Loft Conversion Company in Keston
WWC is a family run construction business with over 30years experience passed down. We cover jobs from renovation to extensions to landscaping. Interior and exterior work. We go by the saying no job is to big no job is to small. Get in touch for quotes today.
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PURTON HEIGHTS LTD
Rating: 5 out of 5
Loft Conversion Company in Keston
Hello my names is Alfie, my company specializes in a range of different things. From scaffolding and loft conversions to decking and garden rooms. We also do property maintenance for all the odd jobs around the house and removal of any waste you may have.
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Latest review:
Demolition- 19 Apr 2022
Alfie was Excellent! The job was done really well and I would highly recommend him I will be using him again in the future if any other projects come up 10 out of 10 5Stars
Dennis LTD
No reviews yet
Loft Conversion Company in Keston
I’m a dedicated worker, have been working on my craft for 10+ years. I’m the guy who will get the job done right.
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Top rated Loft Conversion Companies

Our Loft Conversion Companies in Keston, are rated 5 out of 5 based on 9 reviews from customers like you.

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What services are offered by loft conversion companies in Keston?

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

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 Keston loft conversion company.

Find a loft conversion company in Keston 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 Keston.

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 Keston can view your job and register their interest.

Step 2: Review and compare Keston 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 Keston 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 Keston 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 Keston

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 Keston?

A local loft conversion company in Keston 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 Keston 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 Keston 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 Keston

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 Keston before agreeing to start the work.

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

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