Loft Conversion Companies in Cobham

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4 (7 reviews)

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Some of our top rated loft conversion companies in Cobham

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Global32 Construction Ltd.
Rating: 5 out of 5
Loft Conversion Company in Cobham
We're a London-based construction company dedicated to delivering projects of all sizes with utmost care. As proud members of the Federation of Master Builders (FMB), our highly skilled and professional team in construction and project management is here for you. Discover a world of construction possibilities with our comprehensive range of services tailored to meet your needs. From envisioning and crafting stunning new builds to revitalizing existing properties through renovations and conversions, we're dedicated to bringing your vision to life. Our expertise extends to interior design and fit-outs, ensuring that every detail reflects your unique style and functionality requirements. We specialise in both residential and commercial projects. Backed by our meticulous project management, you can trust us to deliver on time and within budget. Our consultancy services provide invaluable guidance at every step. Whether it's groundworks, landscaping, or ongoing maintenance, we're here to turn your construction dreams into reality. Beyond residential work, Global 32 Construction also has solid experience in commercial projects. Whether you’re refurbishing an existing space or starting something new, our team can handle both the technical side and day-to-day coordination to keep things running smoothly. We’ve worked on a range of spaces including hair salons, F&B outlets, and other retail units, so we understand the practical needs behind each project, from layout and workflow to compliance and finishing details.
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Latest review:
My house was old and its condition was poor. Much were needed to be fix. The original kitchen layout were also inconvenience to my wife. I need to have all these changed under limited time. This builders have a team of specialists on almost every aspect. They gave me variety on the layout design and choose of materials. This saved me money, time and tons of trouble to find difference contractors. The after service and their respond time are very good too. I hope by sharing my happy experience can save your money and trouble to find a good contractor.
Bainbuild Roofing & Property Maintenance
Rating: 4.9 out of 5
Loft Conversion Company in Cobham
We work within the Surrey / London area and have over 20years experience. We are qualified in: Bitumen membrane- felt/asphalt. Pitched roofs- slate/tiles. Fibreglass installers for Cromar. Damp proofing - using injection creams, waterproof renders and vent controls /air bricks. We offer a friendly reliable service and have the correct public liability insurance with heat. We can offer 10year guarantees for materials and workmanship. Photos of before, during and after works are also taken.
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Latest review:
Damp Proofing- 8 Jul 2026
Chris removed an existing airbrick and installed a new one for us. He was quick, easy and helpful to deal with. We would hire him again.
Hicks carpentry and construction
Rating: 5 out of 5
Loft Conversion Company in Cobham
over 12 years experience in the construction industry. we undertake all jobs from kitchens and bathrooms to lofts and extensions. no job to big or small
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Latest review:
The job was carried out very efficiently and very professionally, really happy with the work and love my spacious wardrobes
Plastering and Rendering
Rating: 5 out of 5
Loft Conversion Company in Cobham
plasterering and Renderering specialist, K-rend - silicone render - insulations, EWI system, Micro cement. drylining, and full refurbishment. Over 20 years experience.
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Latest review:
Plastering- 7 Aug 2023
Festim was efficient, punctual and did a very nice job rendering my wall. Highly recommended.
Amritpal singh
Rating: 4.5 out of 5
Loft Conversion Company in Cobham
We are here to assist you and provide you the work you dreamt off on very reasonable prices so trust us with your house and we will do the best for you .please do understand that we have to pay to get contact details of customers so it’s important being a customer to check the portfolio before short listing a tradesman just to be sure that we won’t just be paying for nothing .
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Latest review:
Loft Conversion- 24 Mar 2026
I cannot recommend Amritpal Singh and Island Build Ltd. enough. Amritpal is very knowledgeable about building work and really cares about what he is doing, so that the customer is completely satisfied. Everything has been done to a budget and the quality of the work is very good.
CCH Carpentry
Rating: 5 out of 5
Loft Conversion Company in Cobham
I have 12 years experience in carpentry and multi trade and always make sure my work is to a high spec and keep the work place clean and tidy. I specialise in bespoke kitchens and bathrooms. I have an NVQ level 2 in carpentry and Joinery. The work I undertake is doors,stud walls,kitchen fitting, flooring, wardrobes, bathrooms, loft conversions, bespoke works and all second fix carpentry.
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Latest review:
Bathroom Fitting- 18 Aug 2025
I’m absolutely over the moon with my new bathroom; what a transformation. Chris, Rob, Dave and the rest of the team have exceeded my expectations. Fantastic workmanship and work ethic. Always on time, great communication. I won’t use anyone else. 😁
AVisha Builders
Rating: 5 out of 5
Loft Conversion Company in Cobham
Hi, I’ve been a builder for over 25 years now, working on mainly domestic houses I specialise in plastering and tilting. I have also completed extensions and loft conversations from start to finish. Happy to have a chat about your needs!
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Latest review:
Plastering- 26 Mar 2025
I am really impressed about Avisha's job... quick response , great service with very reasonable price.... Will absolutely recommend...
Albert & Simon
Rating: 4.7 out of 5
Loft Conversion Company in Cobham
We specialize in all types of building jobs, delivering the highest quality craftsmanship. While we offer competitive pricing, our focus is on providing exceptional work rather than competing solely on price. We may not have many reviews on 'My Builder' as we often take on larger projects for one client over an extended period or rely on recommendations. Your satisfaction is our priority!
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Latest review:
Kitchen Fitting- 3 Oct 2024
Albert and Simon were very professional. They delivered the job to quality and were very helpful and supportive with challenges during the project as well as add on tasks. Thier price was also competitive and fair and are very open to feedback. My kitchen and lounge is so beautiful and flush! I love it, you won't regret giving them a project.
Porter Avery Carpentry
Rating: 5 out of 5
Loft Conversion Company in Cobham
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
BS
Rating: 4.8 out of 5
Loft Conversion Company in Cobham
Our company specialises in the design and installation of custom and high-quality 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
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Latest review:
Loft Conversion- 10 Feb 2026
We had a great experience working with BS Loft Conversions on our L-shaped dormer loft conversion. Anxhelo was friendly, approachable and professional from the initial quote through to completion. We made a few changes as the build progressed, and he was always open to discussing options and finding sensible solutions. We found the original quote fair, and the additional items we added were also priced fairly. Anxhelo was generous with his time in offering advice on different aspects of the build, which we really appreciated. The team – Anxhelo, Klaidi, Henry and Jimmy – were on site consistently, worked hard, and are clearly experienced at what they do. At the end of each day, and at the end of each stage of the project, the site was always left very clean and well organised. Before choosing BS Lofts, we spoke to previous clients and heard positive feedback, which gave us confidence. Having now worked with them ourselves, we’re happy to recommend them to friends and family.
Morris Carpentry & Construction ltd
Rating: 5 out of 5
Loft Conversion Company in Cobham
Morris Carpentry & Construction are a family run business with over 40 years experience within the building industry. All our team are fully qualified in their own individual trades, which covers all aspects of building projects. We take the upmost pride and satisfaction in all of our work and treat your home like our own. We are more than happy to provide free estimates for any work you may require.
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Latest review:
From start to finish perfect, very good communicator, no hidden extras, very clean, can't knock him or the lads at all Many thanks Jack for a job egoless done Highly recommend
VMC Building & Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Cobham
Experienced Bricklayer & Builder – Over 20 Years in Brickwork, Extensions & Loft Conversions With over 20 years of hands-on experience, I specialize in high-quality bricklaying, blockwork, and general carpentry. I take pride in delivering durable, precise craftsmanship tailored to each client’s needs. Recently, I successfully completed a major project building four large family homes, handling all brickwork and blockwork on site to exacting standards. I also have extensive experience in extensions and loft conversions, combining structural expertise with attention to detail. Whether it’s new builds, renovations, or structural work, I am committed to quality, reliability, and clear communication throughout every project. Feel free to get in touch for a free quote or to discuss your requirements!
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JM Lofts & Building services
Rating: 5 out of 5
Loft Conversion Company in Cobham
JM Lofts & Building services is a company that specialises in Loft conversion and first fix carpentry. However we also carry out and have experience in a number of other aspects of the building industry.
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Latest review:
Demolition- 13 Aug 2022
Excellent work and all work was completed to my satisfaction. In addition, it was excellent value for money
Happy Building London Ltd
Rating: 5 out of 5
Loft Conversion Company in Cobham
Hello, We’re an architectural design and construction management company with a love of creative inspiration. We help turn dreams and visions into reality for people who aspire to live in exceptional contemporary spaces. Big ideas are our thing. Along with expertly costed build packages. Then there’s our end-to-end project management service, perfect for people who want to leave nothing to chance.
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Latest review:
Restoration & Refurbishment- 17 Jul 2016
Valter was very impressive on his initial visit with some exciting ideas for the house improvements and we had no hesitation in choosing Happy Building above the other two building firms who quoted. Having signed off on the budget and scope of work, Valter's team of builders arrived. We were hugely impressed with the skill, experience and work ethic of the team; the fact that they arrived early each morning smiling underlined the "Happy Building" epithet; Jarek, the site foreman, had an especially cheery demeanour. The work involved stripping the walls back to bricks, removing walls, reinforcing foundations, plastering, extending the bathroom and removing one bedroom to create a large ensuite bedroom. The latter certainly would not have been done without Valter's vision and patience in explaining how it would look. We were able to deviate from the original plans without any problem which was very important in achieving the final look which we had desired. Valter was very careful in sticking to time and budgets which I had never experienced before with builders. The kitchen, bathroom, two bedrooms, living room and hallways were finished to the highest possible specification within our budget. There were one or two small features which, with hindsight, we would have improved such as door handles and shower fittings, however this was down to us not specifying exactly what we wanted. These are very minor details and a tiny part of the overall picture.
crown carpentry contractors ltd
Rating: 5 out of 5
Loft Conversion Company in Cobham
we undertake all aspects of carpentry to a high standard branching out to building work and full renovation
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Latest review:
Carpentry- 2 Feb 2022
I used Crown Carpentry for the first time and found Nick to be very good at his work. He knew exactly what needed doing with the three internal doors we had problems with. We thought two of them would need replacing but Nick was able to fix them quickly and securely with no need for replacement which we were very pleased with! His work was tidy and he thoroughly cleaned up at the end of the job. It took as long as Nick had estimated, he charged accordingly and at the price quoted. We were very pleased with Crown Carpentry and will be using them again if needed. I would highly recommend them to anyone.
Douglas carpentry and building
Rating: 4.9 out of 5
Loft Conversion Company in Cobham
Douglas carpentry and building has over 10 years experience in all aspects of building work. We as a company have very high standards to accommodate all your building work needs from internal doors, skirting, architraves, built in wardrobes to all general building work. Hard working, dedicated, reliable, clean and tidy and here to give you a fair and honest quote. Please look at previous work on my Instagram page @douglascarpentry23
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Latest review:
Carpentry- 14 May 2026
Replaced a rotten external single door. The existing door frame was reused, as per request. This frame wasn't perfectly square which Alex had to compensate for. Alex arrived on time and completed the work without any unresolved issues, taking all offcuts and old door away for disposal.

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Cobham, are rated 4 out of 5 based on 7 reviews from customers like you.

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What services are offered by loft conversion companies in Cobham?

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

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 Cobham loft conversion company.

Find a loft conversion company in Cobham 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 Cobham.

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 Cobham can view your job and register their interest.

Step 2: Review and compare Cobham 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 Cobham 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 Cobham 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 Cobham

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 Cobham?

A local loft conversion company in Cobham 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 Cobham 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 Cobham 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 Cobham

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 Cobham before agreeing to start the work.

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

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