Loft Conversion Companies in Rotherhithe

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.4 (12 reviews)

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Some of our top rated loft conversion companies in Rotherhithe

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Cunningham Developments & Property services ltd
Rating: 4.8 out of 5
Loft Conversion Company in Rotherhithe
Cunningham Developments and Property Services Ltd is an innovative, family-run design, planning, and construction company with over 16 years of experience in architecture planning and construction. We specialize in providing comprehensive services that encompass every stage of the development process, from initial design concepts to project completion. At Cunningham Developments, we pride ourselves on our commitment and the willingness to achieve clientele satisfaction.
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Latest review:
CAD / Drawings- 11 Sep 2025
Justin was responsive and reliable in nudging the council. Got a greater scope approved, too
ALT’s Builders
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
We are a family run business with more than a decade of experience. At ALT’s Builders Ltd we pride ourselves on an efficient and friendly service, and achieve 100% costumer satisfaction ethic. So no matter how big or small your job is we can help. ALT’s Builders Limited is a leading and reputable Construction Company serving around London Ever since we opened for business, we’ve taken a comprehensive approach to construction industry, providing our clients with a wide range of services to cover their needs. our clients are our Number one priority and we go extra mile to make sure they’re completely satisfied. we stand by the excellence of our work and provide clients with personalized attention based on their specific needs. With this service, we’re fully prepared to tackle even the most complex projects and stand by the exceptional quality of our work.
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Latest review:
Loft Conversion- 31 Mar 2026
We recently hired Altin to do our mansard loft conversion and honestly, it was a really good experience from start to finish. He was always on time, worked really hard, and his whole team put in a lot of effort every day. Communication was easy and straightforward, which made things much less stressful for us. The project was finished on time as agreed, and we’re really happy with the quality of the work. Altin was also super helpful whenever we had questions and helped a lot with building control, which made a big difference. It’s quite a messy job (cutting through the ceiling and putting in a staircase), but they did everything they could to keep things as clean and tidy as possible, which we really appreciated. Overall, we had a great experience and are very happy with how everything turned out. I’d definitely recommend Altin to anyone thinking about a loft conversion.
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
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.
Patrick JR
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Experienced Tradesman who enjoys providing a friendly and reliable service to customers. No job too small from Demolition and groundwork’s to first fix of structures to second fix finishing jobs such as hanging TVs and mirrors. Please get in touch for a no obligation quote and estimated timescale.
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Latest review:
Handyman- 4 Aug 2021
Great during the pandemic, able to change appointment due to isolation. Job completed in a timely manner and work space left clean. Job completed a month ago and still perfect. Thanks
WORKSHOP & STUDIO - BAKKER LTD
Rating: 4.8 out of 5
Loft Conversion Company in Rotherhithe
Sole Trader since 2005, now a Limited Company since 2019. We Design-and-Build projects from Conversions, Extensions and New-build to Retail, Interiors, and Installations, and specialise in Carpentry, Cabinetry, Mobile Objects and Prototypes. We are architects/designers who also make/build, and carpenters/craftsmen who also design. We deal in anything bespoke, non-ordinary, at times with high or special demands. No project is too complicated or too simple. Get in touch for a free Quotation.
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Latest review:
Joinery & Cabinet Making- 1 Dec 2025
Extremely skilled and thoughtful to client
Nik Lofts & Extensions LTD
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
General works loft extension,extension work.
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Latest review:
Kitchen Fitting- 19 Mar 2024
Highly skilled, professional and courteous Nik responded quickly to the job request and promptly confirmed the appointment for doing the work. During the initial discussion he did not try to push for un-necessary changes. He completed the work as per the requirement even going out of his way to source parts that were not matching. The work was fiddly and took longer than expected but Nik was professional about it and persisted with it on the committed times and cost. On completion, Nik tested everything was in order and left everything neat and tidy. We are looking forward to working with Nik again on the next set of changes in our house.
London & Kent Best Kitchen & Bathroom Solutions Ltd.
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Our highly skilled team of builders, carpenters, electricians, decorators and plumbers are reliable, trustworthy and dedicated to achieving the highest quality finish for your project; however large or small. Each project is tailored to your requirements and managed via a single point of contact.
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Latest review:
Bathroom Fitting- 26 Nov 2020
Sylwester and team did a fantastic job and were incredibly accommodating and polite with all of our requests. Would definitely recommend.
Onyx Services Limited
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Onyx services Ltd which is part of the Wigwam construction Group has been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction, plastering, painting as well as heating, plumbing & electrical installations. Onyx has £5 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.
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Latest review:
Gas Work- 26 Oct 2025
I was able to get my own boiler and just pay for the extra material and installation. Not all traders accept this. The price was very competitive. I was sceptical at the start but was reassuring on how quickly the job was completed. There was an issue with the thermostat but was sorted out the following week. The gas certificate, building compliance and boiler registration was completed promptly. Would definitely recommend, please allow Shami to quote before making a decision, you won't be disappointed.
apex roofing solitions
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Dedicated roofer experince in installing , repairing and maintaing various types of roofing work including roof structures and wood work proven track record of completing projects on time within budget.
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Latest review:
Roofing (Pitched)- 14 Apr 2026
Great communication, fast and efficient were done in a day.
S & S Builders
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Hi my name is Stephen and I have 30 years building experience specialising in extensions and loft conversions I do 1 job at a time and I am on site every day. I have extensive knowledge of structural engineering I also carry building insurance .and i am a member of the National federation of builders.
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Latest review:
Loft Conversion- 9 Sep 2018
My brother and I met with many builders when looking to complete our project, a full renovation of our house and loft conversion. When we met with Stephen it was clear from the start that he has huge experience in the industry and we both felt an instance confidence in him, Stephen is a quiet man that lets the quality of his work do the talking. Stephen and his team carried out a complete renovation of the property including stripping out, structural steel installation, new roof, fitting of windows & doors, plastering, decorating, electrical rewiring, plumbing & heating, all carried out with no fuss and to a very high standard. We needed a builder that we could trust with our project as we both work full time and could not be on site every day to supervise the work. Stephen took charge of the project and his communication was excellent, always making a phone call to check any queries and to let us know how things were progressing. He was also happy to suggest changes and improvements to our plans with great vision for what would improve the end result. Minor mistakes were made during the project, but Stephen was always honest and takes a real pride in the work that carries his name, so things were always put right and with minimum fuss. Overall we feel very lucky to have found such an honest, hard working and reliable builder, we would not hesitate to recommend Stephen and if we ever carry out another project, he will always be the first man we would go to for a quote.
Muro Construct ltd
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Muro Construct Ltd is a family-owned construction company dedicated to providing personalized, high-quality building services to homeowners and businesses. With a focus on attention to detail, reliability, and clear communication, we bring your vision to life with every project we take on. Whether it’s a home renovation, a commercial build, or general repairs, we take pride in delivering exceptional craftsmanship and ensuring that every job is completed on time and within budget. At Muro Construct Ltd, we treat every project as our own, offering a hands-on approach and building lasting relationships with our clients.
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Latest review:
Tiling- 11 Jun 2025
I hired for just for bathroom and toilet tiling, However due to the diligence, attention to detail, honesty and work ethics of Muro construct, I hired him to decorate my entire house, this includes everything form stripping wallpaper and painting, floorings, tiling, fixing doors, putting up all my new furniture including a very compl bunk bed for my children room. This builder works really hard and time efficient. He has helped transform my house into a luxurious living space and I am not exaggerating when I say that the price is very fair, I have had three times the quotes for less the quality. I will be using the builder for future jobs.
Mario Services
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Close Fibres
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Carpenter skilled in all aspects of first and second fix. Experience ranging from typical terraced housing renovation, extension and loft conversions to large heritage projects.
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Latest review:
Two things about George. Firstly his quality of work is excellent including good attention to detail and care with tidying/cleaning at the end of each day. Secondly, he communicates well both before and during the job - for example mid-way through this project there was a choice of how to do something, and he asked me rather than making a unilateral decision. I was very pleased with his work and would use him again.
PACHO CREATE LTD
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Pacho Create specializes in high-quality loft conversions, home extensions, and full refurbishments—transforming homes into beautiful, functional spaces. With a focus on craftsmanship, planning, and client satisfaction, we bring your vision to life on time and on budget. Let me know if you want a more premium, modern, or friendly tone.
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Latest review:
Tiling- 24 May 2026
I cannot recommend John from Pacho Create Ltd highly enough. I'm a very particular client with high standards, I was impressed by his care, patience, and professionalism throughout. He clearly takes pride in delivering quality work and paid close attention to every detail. Living in a small flat, I was concerned about dust, but John proactively created a solution to minimise disruption, which I really appreciated. He also gave excellent advice on budget-friendly waterproofing products. We had a challenge with large-format tiles, but John worked closely with me to plan the layout, ensuring a natural, balanced finish. The workmanship is outstanding – minimal wastage, precise alignment, and superb attention to detail. I wouldn’t hesitate to use John again, in fact, I’m already planning to have him back to tile around my bath in the near future. I highly recommend him to anyone looking for a skilled, reliable professional.
Eugen lofts ltd
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Welcome to Neugen Lofts Ltd, your premier choice for expert loft conversions with a legacy of 20 years of unparalleled experience in the industry. At Neugen Lofts Ltd, we pride ourselves on transforming ordinary spaces into extraordinary living areas that meet your unique needs and desires. Whether you're looking to create a new bedroom, home office, or entertainment space, our skilled team of professionals is dedicated to delivering high-quality craftsmanship and exceptional customer service every step of the way. We understand the importance of peace of mind when investing in your home, which is why we offer a comprehensive warranty on all our work. Our commitment to quality and customer satisfaction is reflected in every project we undertake, ensuring that your vision is brought to life with precision and care. Rest assured that Neugen Lofts Ltd is a fully licensed and accredited company, giving you the confidence that your project is in capable and reliable hands. Our team adheres to industry standards and regulations, prioritizing safety, efficiency, and excellence in every aspect of our work. Experience the difference that 20 years of expertise can make in your loft conversion project with Neugen Lofts Ltd. Contact us today to discuss your ideas and let us help you unlock the full potential of your home.
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Villa project
Rating: 5 out of 5
Loft Conversion Company in Rotherhithe
Villaprojects delivers high-end residential construction specialising in home extensions, loft conversions, renovations, and bespoke residential projects. We help homeowners transform their properties through quality craftsmanship, careful planning, and professional project delivery. From structural works and bespoke joinery to complete interior refurbishments and premium finishing, every project is completed with precision, attention to detail, and a commitment to the highest standards. At Villaprojects, we combine skilled workmanship with reliability, clear communication, and a clean, organised approach to deliver exceptional results from concept to completion.
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Latest review:
Very friendly and approachable. Happily discussed what was wanted and needed. Good attention to detail. Would recommend

4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Rotherhithe, are rated 4.4 out of 5 based on 12 reviews from customers like you.

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What services are offered by loft conversion companies in Rotherhithe?

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

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 Rotherhithe loft conversion company.

Find a loft conversion company in Rotherhithe 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 Rotherhithe.

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 Rotherhithe can view your job and register their interest.

Step 2: Review and compare Rotherhithe 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 Rotherhithe 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 Rotherhithe 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 Rotherhithe

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 Rotherhithe?

A local loft conversion company in Rotherhithe 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 Rotherhithe 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 Rotherhithe 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 Rotherhithe

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 Rotherhithe before agreeing to start the work.

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

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