Loft Conversion Companies in Raynes Park

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (11 reviews)

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Some of our top rated loft conversion companies in Raynes Park

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BACK2BEST BESPOKE JOINERY
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
Thank you for taking the time to look at my profile, here at Back2best Bespoke Joinery our main goal is always making sure our work is 100% precise in execution and precision our bespoke services include : WALL PANELLING designed and fitted : MEDIA WALLS FITTED WADROBES ALCOVE CABINETS SHELVING UNDERSTAIR STORAGE AND MUCH MORE we bring your own unique ideas to life and execute each job with precise detailing. With a choice of finishes and paint finishes to suit all budgets and needs we use MDF MOISTURE boards as standards and all all doors drawers BLUM SOFT CLOSE HINGES AS STANDARD we're here to bring your home Back2Best, we thank all our clients for our 100% feedback we really appreciate the comments it's what makes my job worthwhile and strive for the next job so a big thank you. Thank you. ** Please only shortlist if you intend works to commence withing a few weeks, we also need to survey fully no pictures or videos for price and only if home is purchased thank you ***
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Latest review:
Carpentry- 18 Jun 2026
Very happy with the work done.
DOMestic
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
I have a passion for carpentry having completed courses at The CASS. I am a hard worker and very tidy. Every job is important to me. I am punctual and will not leave until you are happy that everything is to a high standard.
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Latest review:
Handyman- 30 Aug 2018
Really pleased with the work. It was done very thoroughly. Don was able to schedule me in promptly. He worked quickly and efficiently and was a really nice guy. I will be recommending him to all my friends and will use him again in the future.
Albert & Simon
Rating: 4.7 out of 5
Loft Conversion Company in Raynes Park
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.
Building Decorating
Rating: 5 out of 5
Loft Conversion Company in Raynes 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 Raynes 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.
JM C&D Ltd
Rating: 5 out of 5
Loft Conversion Company in Raynes 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.
Ncc maintenance ltd
Rating: 5 out of 5
Loft Conversion Company in Raynes 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.
M services
Rating: 5 out of 5
Loft Conversion Company in Raynes 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.
Zhu Construction LTD
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
We are a family run construction business that undertakes numerous building works. Our team comprises of skilled individuals with our lead project manager holding over 20 years building experience. The most common types of work we carry out are: loft conversions; single story extensions; full internal and external house refurbishments.
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Latest review:
The works were for a full house refurbishment. This included bathroom and kitchen installation. Also, each room was brought to a high standard. The works were done in a timely manner and the staff were super friendly. If you had any questions they would assist with no problem. Definitely builders I recommend.
SPH
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
With over 20 years of experience in Carpentry, building, Electrical, and plumbing services we are able to take on ambitious bespoke projects as well as provide an effective maintenance service for any plumbing or electrical issues . We can build extensions, loft conversions, fit kitchens, bathrooms, and carry out all electrical and plumbing services.
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Latest review:
Bathroom Fitting- 30 Jul 2019
Stefan did a great job gutting my en suite and putting a new bathroom in. Great attention to detail and flexible with changes some things as I wanted. Good time keeping you and would recommend!
Dalibpro services limited
Rating: 5 out of 5
Loft Conversion Company in Raynes 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.
Lianqi Xiang
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
ABOUT SJ CONSTRUCTIO(ENG)LTD SJ Construction comprises a team of architecture and construction professionals dedicated to delivering excellence in every project. With a focus on quality craftsmanship, we specialize in a diverse range of services including new built developments, property extensions, renovations and loft conversions etc. Having successfully delivered over 50 projects throughout London, including both residential and commercial, we offer a comprehensive suite of services tailored to meet your every project’s requirement. Architecture and Interior Design Services At our firm, we offer comprehensive architecture and interior design services, supported by our team of experienced professionals. Our approach begins with a examination of your initial concepts, allowing us to comprehend your vision for the space. Our in-house architect will translate these ideas into plans, ensuring alignment with your aspirations. Planning Package Upon your approval of the initial design concepts, our architects collaborate with required consultants, often including structural engineers and party wall surveyors, to create a comprehensive planning drawing package. This package is then submitted to the local council for regulatory approval, adhering to all regulations and guidelines. Technical Drawing Package Following the planning approval, we proceed to develop a detailed set of technical drawings essential for the construction phase. Prior to commencing construction, we engage with you to finalize crucial details, ensuring clarity and alignment with your preferences. Building Control Application （ Our dedicated team oversees the submission of the building control application to the local council after receiving planning approval. Throughout the construction process, we maintain open communication with building control inspectors, ensuring compliance with all regulatory standards. This proactive approach facilitates a smooth progression and eventual sign-off upon project completion. Construction With attention to details, our professional team undertakes the construction phase, bringing your envisioned design to real life. Building upon the collaborative efforts during the design phase, we ensure a seamless transition from concept to reality, delivering exceptional results. Handover Upon the successful completion of the project, our team delivers a comprehensive handover process. Recognizing that our commitment extends beyond project completion, we remain dedicated to ensuring your satisfaction during the snagging period. Our goal is to ensure that your new space meets and exceeds your expectations from inception to occupancy.
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Latest review:
Painting & Decorating- 20 Jan 2025
His 2 men did an excellent job. I understand that they had to pray several time a day, but they were here early and left late. Did a decent job too. Would use again.
DMK Builders
Rating: 4.8 out of 5
Loft Conversion Company in Raynes Park
DMK builders is a family run business specialising in general interior refurbishment, kitchen fitting, carpentry and joinery and much more. We can renovate your property from start to finish, design and make furniture including wardrobes, tables, fireplaces, staircases etc. We pride ourselves in quality and innovation in our work. Micheal, our carpenter has 20 years’ experience in the construction industry, our other team members have the skills to assure quality and dedication towards any job.
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Latest review:
Kitchen Fitting- 23 Aug 2019
Professional approach to all aspects of work involved. Good knowledge of elecreics and plumbing. Kitchen units, work top and tiling carried out to a high standard. Recommended.
Bledi Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Raynes 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.
VISUALISE CONSTRUCTION
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
We offer professional and reliable services for a wide variety of needs, working with the dedication and craftsmanship that has earned us a reputation for excellence. Our expertise spans the full spectrum of building work including single and double story extensions, basements, loft conversions, bespoke new builds and full house renovations. Get in touch for a free quote today.
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Latest review:
Bathroom Fitting- 17 Mar 2026
Cris has done an amazing job at restoring the shower in my house and created a larger and brighter space. He has a sense what a good living space should look like and details of his work are close to complete perfection. I will work with Cris again on more projects in the house.
Morden Lofts & Extensions Ltd
Rating: 5 out of 5
Loft Conversion Company in Raynes Park
Morden Lofts & Extensions Ltd with over 20 years of experience, we specialise in delivering exceptional loft conversions, extensions and renovations that transform houses into dream homes. Our team of skilled professionals brings together a wealth of knowledge and expertise in the construction industry. We have successfully completed numerous projects, earning a reputation for delivering outstanding craftsmanship and exceptional customer service.
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Latest review:
We had refurbishment of separate bathroom and toilet converted into one large bathroom with new 5 piece suite including electric shower unit . Complete redesign and new plumbing and electrics done to fit requirements , floor to ceiling tiles and heated towel rails . We were very happy with the work done . Muhammad and his team were always punctual and reliable in their workmanship . They were very courteous , polite and kept us up to date as the job progressed from start to finish. The job was completed to a high standard and premises always left clean and tidy . Highly professional team and would definitely recommend .

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Raynes Park, are rated 4.6 out of 5 based on 11 reviews from customers like you.

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

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

Find a loft conversion company in Raynes 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 Raynes 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 Raynes Park can view your job and register their interest.

Step 2: Review and compare Raynes 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 Raynes 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 Raynes 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 Raynes 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 Raynes Park?

A local loft conversion company in Raynes 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 Raynes 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 Raynes 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 Raynes 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 Raynes Park before agreeing to start the work.

Do I need planning permission for a loft conversion in Raynes 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 Raynes 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 Raynes Park loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.