Loft Conversion Companies in Cottenham Park

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (10 reviews)

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Some of our top rated loft conversion companies in Cottenham Park

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VION
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
UK VION LTD is a building company established in 2015 by Ihor, a tradesman with extensive experience in construction business, specialising in tiling, full house renovation, bathroom & kitchen fitting. Our team of highly skilled builders are reliable, punctual and tidy. We strive to do the job to the highest standards and guarantee a thorough, transparent and efficient approach. We offer regular communication and will do our best to resolve any problem to find the right solution for you.
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Latest review:
Restoration & Refurbishment- 16 Jan 2026
We hired UK Vion to do a refurb of the first floor and these guys were amazing. It was so easy to work with Ihor and the team from the start, Ihor clearly communicated about the challenges and plans and the work was done as we agreed. We even agreed some additional work that came up and the price was fair. The entire team was professional and curteous, they respected our property, kept the site clean, they were always respectful with us and the neighbours. It was refreshing to work with Ihor and the team. I can't recommend them highly enough.
Dara Builders & Electricians
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Dara Builders Ltd are expert local builders based in Carshalton, South West London, specialising in house extensions, loft conversions, kitchen fitting, bathroom renovations, refurbishments, and structural alterations. We proudly serve Sutton, Wallington, Cheam, Wimbledon, Raynes Park, Purley, Banstead and nearby areas. With over 15 years’ experience and rated highly on Google Reviews, we deliver quality workmanship with trusted trades. As a Which? Trusted Trader, we offer clear communication and professional project management from start to finish. Contact Dara Builders Ltd today for reliable local building services.
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Latest review:
Hard Flooring- 30 Sep 2018
Dara Builders were fantastic I will definitely use them again. Very pleased to have found them. Great job and finish, gave helpful advise and suggestions, plus very tidy and considerate.
JM C&D Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
We are over 10 years experienced and well established construction company based in Worcester Park in Surrey. We are specialised in loft conversion, house extension, new build and basement and commercial works. We do quick response to all our client's enquires and build fast as well.
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Latest review:
Extensions- 27 Jun 2022
Very very happy with Michael's work. From the day one of the meet till end of the project, he and his team been quite professional and have been working with high standards. We received range of quotes from different builders and Michael's quote was somewhere in middle with good quality of work which we have seen during our site visit for his other projects. So, decided to go with him. One really good thing you get from Michael is plenty of ideas and options. From our original drawings, he suggested some changes which were really useful. Being a lay people, During the project we were confused in some design options and Michael really assisted with 3 to 4 options and he suggests which one is the best from his view point but also been flexible if we wanted to do in specific way. He was daily coming to the site to monitor quality and progress of the work. All his team is highly skilled and experienced. The all do general building but when it comes to specific, they have specific tiles, electrician, plumber, painter etc etc who finishes the job at very high quality. They work flexible to complete the job on time and keep the area safe and tidy. In terms of managing project in budget, we had a good experience where Michael will in detail explain what is covered in agreed amount and where the extra cost will incur if there are major changes. I am taking this much time to write this review so that it can help others to see my good experience with Michael. 100% best.
Sandbrick Developments Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Based in South London, Sandbrick Developments Ltd is a trusted and experienced construction company delivering high-spec residential and commercial projects across London and surrounding areas. We specialise in: Full refurbishments House extensions and loft conversions New builds Office-to-flat conversions Basement construction and waterproofing Commercial fit-outs – including recent projects like a dental surgery and warehouse Specialist works – damp-proofing, bespoke finishes, and more From £1,000 refurbishments to £10,00,000+ builds, we offer tailored solutions for homeowners, landlords, and developers. Our projects are delivered with precision, transparency, and a genuine commitment to customer satisfaction. Why clients choose us: High-quality craftsmanship Clean, efficient project management Clear communication at every stage Fully insured and health & safety compliant Versatile team with experience across residential and commercial sectors Whether you're planning a home upgrade, a full-scale development, or a commercial transformation—we can help bring your vision to life. Get in touch today for a quote and a smooth, professional building experience.
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Latest review:
Loft Conversion- 28 Dec 2021
I was more than impressed with Sandbrick. From providing an accurate quote, a clear plan on what was to be done and by when. Also conscious of doing a clean job. Left me with no worries. A good team of experts and experienced individuals in this company. I was impressed the job was done within a week. Will be sure to select them again.
ATICO
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
My name is Thomas and I'm owner manager of ATICO. If you use us for your building work, I hope that your experience reflects our passion for working with the customer to create quality job at a price considered to be fair to all.
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Latest review:
Loft Conversion- 6 Nov 2018
Tomasz installed a loft extension and rearranged the kitchen and bathroom in our Earlsfield flat. He did a superb job. Always highly professional, offering sensible ideas and sound advice, he delivered a fabulous job on time and on budget. I recommend him very highly indeed.
All 4 Property Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
All 4 Property Ltd is a company which successfully meets its customers’ expectations. With 15 years combined experience we provide a professional and honest service from design to completion. Whether you want a loft conversion, an extension or just a new bathroom, All 4 Property will deliver it
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Latest review:
Loft Conversion- 14 May 2024
Hard to fault Marius and his team.
Building Decorating
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
I am a certified building technician with over 30 years of experience in construction, home improvement and maintenance projects. My aim is to provide all clients with first class service and a high standard of workmanship.
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Latest review:
Painting & Decorating- 7 Nov 2025
Did an incredible job, and was on time with the work. Definitely recommend him for your painting job
BS
Rating: 4.8 out of 5
Loft Conversion Company in Cottenham Park
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.
Sirius Construction Surrey Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
We are professional builders with 20 years of work experience. We do extensions, loft conversions, new houses from foundation to the final touches. You get quality and quantity at the same time as we are perfectionist in our work and also hard worker. We have many reference work upon request.
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Latest review:
Extensions- 15 Jul 2019
Norbert and his team have transformed our house to the most amazing standard, we would recommend them to all our friends and family. The work schedule was managed so well, with minimal disruption to us with two young boys. We had a loft conversion, main bathroom renovation, utility room, downstairs toilet and a 4 meter kitchen extension. We stayed in the house whilst the work was being completed and Norbert and his team fitted in so well, it actually feels weird not seeing them in the house. They are such a lovely bunch of people. We are over the moon… on time, on budget and finished to a high standard. If we ever undertake renovation work again, Norbert and his team would be our 1st call!
M services
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
We can perform a wide range of tasks across multiple trades, including carpentry, full bathroom refurbishments, extensions, conversions, refurbishments. 2S Constructions Ltd Company number: 13606134
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Latest review:
Extensions- 27 Aug 2025
Dunster House Garden Office (5m x 2.5m build) We are absolutely delighted with the garden office that Michal and Lenka built for us. From start to finish, their expertise and attention to detail shone through. They guided us with thoughtful consultation, listened carefully to our ideas, and delivered a finished office that is both beautiful and practical. Their work ethic, professionalism, and friendly approach made the whole process stress-free and enjoyable. The quality of the build is outstanding, and it’s clear they take great pride in what they do. This was a 10/10 experience, and we could not recommend them highly enough! We also used them again for another job to build install a Pantry; Michal and Lenka recently built and fitted a bespoke pantry for us using Howdens units, and we are beyond impressed. Their knowledge and craftsmanship are second to none. They made excellent recommendations throughout the process, ensuring the final result was exactly what we needed.
Bledi Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Bledi Construction Ltd is a Design&Build family-owned business established in 2017 with over 15 years of experience. Located in South-West London, we specialize in all building works including basements, extensions, and loft conversions to the highest standards. The architectural services include architectural surveys, design proposals, and planning applications.
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Latest review:
Conversions - General- 3 Sep 2023
Lerida was excellent- would highly recommend. Met with us, understood our needs, and produced a good set of options and designs. Our preferred option was then tweaked further with great attention to detail shown. We are now looking forward to working with them on the build of the project.
Axe Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Hello and welcome to Axe Construction Ltd. If you are thinking of renovating your home, building an extention or arranging general maintenance in your property, we are here to help. Our priority in job is to deliver high standard service to customer’s satisfaction.We offer a professional and friendly service to all private and commercial clients in and around London We are always go above and beyond to satisfy our clients.We are happy to provide references from our clients and arrange site visit
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Latest review:
Loft Conversion- 24 Jul 2021
I have to say I was very impressed with Axe from the outset. Ed the project manager clearly knew what he was talking about and was able to come up with suggestions and guidance whenever a decision was needed. He provided an up-front itemised quote, and this was stuck to. The team of workmen led by Avram did an excellent job and I am very happy with the finished product. Avram in particular was a superstar: high quality workmanship, creative solutions to problems, hard-working and most importantly he takes a pride in his work as if it were his own house. Plus, he noticed a tiny leak in the roof unrelated to the project which he fixed at no extra charge. Recommended - I would use them again.
Lucas Build London Ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Hi. My company exist from 10 years. We are doing house extensions, loft conversions and full refurbishments. I look after every my work, im always being in touch with Clients, and always happy to give advise. Im working together with my builders, that is why work going smooth and always before or on time. Please call for free quote. Thank you
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Latest review:
Lukasz and his team built a lower floor kitchen extension and downstairs WC for my wife and I. From start to finish, they were extremely professional and helpful. They were the perfect builders for first time renovators such as ourselves, guiding us through difficult decisions, while sticking religiously to their timescales. They began with helping us scope out the design, adding useful insight and advice. They then set to work, making our vision a reality. Their work ethic was superb, and we were ecstatic with the level of craftmanship exhibited. Like any building project, there were unforeseen costs and issues, but these were always handled very fairly and efficiently by Lukasz and his team. We are over the moon with the end product! I would (and have) recommend Lukasz to anyone looking to undertake building work.
Alpha Development
Rating: 4.8 out of 5
Loft Conversion Company in Cottenham Park
We undertake all carpentry and joinery works with over 25 year’s experience. Specialise in fitted furniture, kitchens and all other carpentry works.
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Latest review:
Carpentry- 26 Jun 2024
Top class service from Alan & team would highly recommend and will definitely use again
Ncc maintenance ltd
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
We made, electricity, plumbing, landscaping, building renovation, carpenter, tiling and paving
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Latest review:
Carpentry- 13 Jun 2022
Highly skilled and excellent work.
Dalibpro services limited
Rating: 5 out of 5
Loft Conversion Company in Cottenham Park
Since 2004, DPS Ltd. based in south west London delivers hight standard new build project, house extension, loft conversation to people in Southwest London and Surrey. Our aim has always been to became a company that people associate with quality, professionalism and customer satisfaction.
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Latest review:
Ground floor back extension, reconfiguration and full redecoration. We chose Dali, firstly through recommendations by neighbours, seeing his work first hand and feeling confident during the consultation phases of his ability to deliver. Prior to the job commencing a schedule of works and costing were clearly agreed. We were impressed with Dali's level of communication and his availability to meet with us personally. He would always return a message promptly and that continued throughout the job. Dali expertly guided us through the project and also arranged architect and structural drawings, site surveys, council applications and 3rd party wall advice. We decided to live-in during the build which is never ideal but Dali cordoned off spaces for us to live whilst allowing him to get on with the job. He set up temporary kitchen and laundry facility some 3 or 4 times for us! Now for the business end. Dali supervised the project but also allocated a Manager, Michal to be our point person and he was on site every day without fail. Both would respond to any question promptly and courteously. I learnt to keep the questions short and be more patient as the job progressed as everything was always on their agenda to be done. Teams of builders would arrive punctually by 8am and work would always start promptly. Everyone on the team had clear instructions and their industry was on show from start to finish. I could not fault them at all for their reliability and professionalism. They were all courteous, polite and respectful and would also make a point to clear up after themselves at the end of each day. On occasions I did request a deviation it was fully discussed so we could make informed decisions but nothing, no matter how small, was made to seem trivial as they were intent on delivering an unquestionable product. The job progressed sometimes at lightning pace with crews of builders coordinated daily and we hardly had a single day where someone was not in attendance. Dali would continue with a regular update by email or phone so we were always aware of progress. When problems did occur, Dali and Michal would distress those situations, find solutions quickly and sometimes you are oblivious to there even being a problem. On the few occasions they made mistakes they were not argued about but swiftly rectified ... finding someone who was honest and proud of their workmanship has been a true find. The work progressed to schedule and the end result is something we are not only thrilled about but cannot fault at all. It is a level of workmanship we have been truly delighted with. Another thing I am confident of is that if something does happen in the future Dali will respond to my call whether it be now or in a year's time. There is so much positive to be said and I would highly recommend DPS Ltd for their professionalism, reliability and workmanship so much so I have already asked them to continue on the 1st floor.

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Cottenham Park, are rated 4.6 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in Cottenham Park?

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

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 Cottenham Park loft conversion company.

Find a loft conversion company in Cottenham Park 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 Cottenham Park.

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 Cottenham Park can view your job and register their interest.

Step 2: Review and compare Cottenham Park 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 Cottenham Park 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 Cottenham Park 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 Cottenham Park

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 Cottenham Park?

A local loft conversion company in Cottenham Park 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 Cottenham Park 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 Cottenham Park 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 Cottenham Park

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 Cottenham Park before agreeing to start the work.

Do I need planning permission for a loft conversion in Cottenham Park?

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