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Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!
Mary
George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!
Dmitry
Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.
Holly
A basement conversion has the potential to add a lot of value and space to your home. Once your team excavate your new basement, you can turn it into a bedroom with an ensuite bathroom, a new gym, a living room, or any other living space to transform your underground spaces into useable rooms. Find everything you need to know about hiring a local cellar conversion specialist. Below, we cover tips to help you find a basement conversion specialist:
Browse Cellar & Basement Conversion specialists
Take a look at our Cellar & Basement Conversion specialists profiles, read reviews and request quotes directly.
How to find a reliable, local basement conversion specialist
What does a cellar conversion involve?
If you already have a basement, then you might be looking to turn it into a liveable space by adding structural supports, damp-proofing, insulation, heating, and a new ventilation system. If your cellar was intended for storage and has low ceilings, your basement conversion team might have to dig down to increase the head height before they can add things like new plumbing and electrics.
Or, you might be thinking about extending your current basement, such as by digging underneath your garden. This is another great way to add more space and additional rooms to an existing basement.
If you don’t currently have a basement, you can also create a new one by carrying out excavation work. As well as the basement, you’ll also need a new staircase.
Whether you want to build a cellar from scratch or want to turn your cramped storage room into a brand new living space, a basement conversion specialist can help.
Factors to consider before hiring a basement conversion specialist
On average, a basement conversion can take anywhere from 12 to 20 weeks to complete. Avoid stress and costly repairs down the line by hiring a skilled specialist to help you upgrade your home. Look out for basement conversion installers that:
- Are a skilled company with a strong history of high standard projects
- Have all the licenses and insurance needed to protect you and their workers
- Have a good range of positive reviews from previous customers vouching for their reliability
- Are available to carry out the work in the timeframe you need it by
- Are quoting a price and payment option that you are happy with, having compared the quote with other basement conversion companies
How much does a basement conversion cost?
If you don’t have space for a rear or side extension, and don’t have a loft to convert, then a basement conversion is a great option to maximise your home’s space. How much you’ll end up spending on your basement conversion depends on a range of factors, including:
- The size and layout of your basement
- How many structural changes will be needed, including extra support beams and underpinning
- Waterproofing and damp proofing costs, as well as the installation of effective drainage systems
- Whether you want a window well installed, which can help you introduce light into your basement
- Basement insulation and soundproofing
- Labour costs, which are affected by where you live in the UK
The average basement conversion costs between £120,000 and £160,000. For a more accurate quote for your specific project, speak to a basement conversion specialist today.
Other basement conversion FAQs
Do I need planning permission for a cellar conversion?
You generally do not need planning permission if you are converting an existing basement into a living space without changing the building's external appearance. However, you will likely need approval if you are excavating a brand-new cellar, creating a separate living unit, or working on a listed building.
For more information, contact your local planning authority or visit the Planning Portal website. You can also read our planning permission guide for more information.
What questions should I ask before hiring a basement specialist?
Always ask if they carry public liability insurance, how many years of experience they have, and for a detailed cost breakdown and project timeline. You should also confirm if they use subcontractors, ensuring any gas engineers are Gas Safe registered and electricians are appropriately certified.
What is a sump pump, and do I need one?
A sump pump is a drainage system installed below the basement floor that automatically pumps out any groundwater that collects under the property before it can flood your room. Because cellars are naturally below the water table, a sump pump paired with a waterproofing cavity drain membrane is almost always required to ensure your conversion stays completely dry and structurally safe.
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We are a well established Building Company with over 30 years experience. We specialise in all aspects of the building trade including electrics ,replacement windows and doors. We are active members of FENSA
The work itself was very good, and while on the job, they were quick, consistent and polite. Problems occurred with finishing off and a number of issues are still outstanding. There were mitigating circumstances - serious illness in the company - but communications with us have been erratic and we are left with a few outstanding issues that we have to deal with ourselves.
We have over 15 years of experience in the building, plumbing and heating industry. We carry out all works from reactive maintenance to full renovations, complete landscaping and heating installations.
Would definitely hire again
UNIQUE LOOK CONSTRUCTION LTD
Cellar & Basement Conversion
Unique Look Construction The story of these company start in 2024 after almost 10 years of working form somebody else i decided to start my own business . We deliver a large range of services and able to take care of the whole project . Happy to help with any work like -new build -extension -loft conversion -general renovation -landscaping -gardening Contact with confidence to carry out your project
MW Stone Builders
Cellar & Basement Conversion
Hi I’m Mike I Started life in the building trade 40 plus years ago as an apprentice Bricklayer. The following years I have spent mostly in domestic construction from chimney and fireplace construction to extension and house alterations. I run a small team of trades people who work to a very high standard.
If you need plasterer, painter, kitchen fitter bathroom fitter or general building work we can help you immediately. We guarantee the highest quality of work
Couldn’t be happier with the remedial painting. Friendly from the start and no upselling at all, they just got on with it and the finish is excellent. They even sorted doors that wouldn’t close, shaving them to fit, and cleaned all the hardware. The flat was left spotless, with no paint specks anywhere. Extra bits I asked for were done with no fuss, and they even offered to source a missing handle part afterwards. The place now looks crisp and brand new. Highly recommend
SS Cheema Builder Ltd
Cellar & Basement Conversion
Richard Hames General Builder
Cellar & Basement Conversion
Richard Hames has been producing finely crafted renovation works in and around the beautiful city of Bath for nearly 30 years and has taken his work overseas to a number of locations including the Bahamas. He was born in Bath where he still lives and has gained a huge knowledge of the buildings, both both listed and non-listed in and around Bath. Richard takes the commitment of satisfying his clients very seriously. He listens, designs and works with the client to transform an initial seed of an idea into reality.
T & M BUILDING CONTRACTORS LIMITED
Cellar & Basement Conversion
Phill Turner,Chris Mabe,,T&M building contractors
CHRIS WOODWARD BUILDING SERVICES. WITH OVER 30 YEARS EXPERIENCE. ALL TYPES OF WORK UNDERTAKEN BRICKWORK, STONEWORK, PATIOS, PLASTERING, ROOFING, FENCING, GUTTERING ETC... CITY AND GUILDS APPROVED. LIABILITY INSURANCE. HONEST, RELIABLE & TRUSTWORTHY.
High quality work from a very friendly and knowledgeable tradesman. Very pleased with the finished job.
KASE CONSTRUCT LIMITED
Cellar & Basement Conversion
Residential, Commercial and Industrial Construction
Taurus Home And Garden
Cellar & Basement Conversion
Taurus Home and Garden was launched in 2021 with the aim of providing our clients with an honest and reliable service, specialising in what we love most: landscaping and damp-proofing. Taurus is a Sussex based company where a clear vision for each project is shared among us, the contractors, andhomeowners. As well as landscaping and damp-proofing, we also undertake renovation projects on request – you only have to ask! Our goal is to become the go-to company for landscaping and damp-proofing work, and to share our vision of creating, improving, and protecting every space we have the opportunity to work upon. We aim to restore trust in contractors by delivering clear, well-planned, and expertly executed projects to our clients, providing full transparency throughout. We understand the anxieties many people experience when entrusting their home visions to others. Our transparent process, from planning to completion, is designed to help our clients rebuild that trust.
Hi I’m Mike from Bison Construction I have 27 Years experience In the industry with the last 14 of them working for myself or rather for you the customer and this is something I respect as I completely understand the stress and worry that can come with having any work done to your home but especially when it is a large costly project, should you decide that Bison Construction Yorkshire is the Building firm for you then please rest assured your in safe hands with me and my team.
Michael provided a competitive quote, turned up when required, and undertook the work competently and cleaned up well after each day. I would have no trouble recommending him and Bison Construction to undertake work in your home.
Hello, I'm Gareth from Bangor, Gwynedd North Wales. I cover all areas including Wales and England. I have been working within the construction industry for over 10 years! I'm a hard working individual, with a strong hardworking team behind me organised by myself. All of my employees take pride in their work and are able to complete set tasks. I cover a variety of areas, This includes -Roofing -Groundworks -Earth works -General Building -Landscaping
Excellent job polite efficient and would definitely recommend thanks for a great job
Kirktoun Limited is a family run construction firm based in Perthshire, Scotland. Established by father and son team Paul and Blair Brown with shared experience in construction of over four decades. With Kirktoun Limited Paul and Blair have created a unique service within the construction industry putting the client and their needs front and centre of every project. With a focus on transparency, communication, value for money and unwavering attention to detail Kirktoun Limited are here to guid you through every step of your project.
Great job, quality work, delivered on time and on budget. No hesitation in recommending and would definitely use again. Excellent.
MKM PROJECT was established 2 years ago after working self employed for 18 years. I have been involved in many projects from basement, extensions, full house or flat refurbishments and loft conversion. Structural steel fittings, footings, brick and stud walls, roof structure, flooring, kitchen and bathroom fittings, tiling, joinery, plastering & painting. I have a SMSTS course done. First aid course.
Mario is the best all-round builder I have come across. He is at home with plumbing, building, joinery, tiling, electrics and decorating work, all done in a cheerful, positive manner. He converted our decaying washroom into a modern utility room with panache and I would recommend him to anyone.
We are locally based construction company in Weston-super-Mare. We aim to deliver a quality finish to every job. Also take on any job weather it’s small or large.
Nothing is too much trouble. Cain and his staff worked hard to do a professional job.
sole trader operation with over 35 yrs continuous experience. trade indentured, city&guilds1st and time served.all aspects of brickwork with particular concentration to repointing, restoration,strengthening& surface cleaning.all lime& Portland mortar done
PPS
Cellar & Basement Conversion
Steven Rose, the founder and owner of PPS, brings a wealth of expertise to the construction industry with a background as a qualified Electrician and Plumbing and Heating Engineer. Holding a Master's degree in construction project management, a Level 6 diploma in applied health and safety, and a Level 5 in Leadership and Management, Steven is committed to delivering comprehensive turnkey design and build construction solutions. PPS specialise in New buildings, Extensions, Loft Conversions, Renovations, Bathrooms, Kitchens, Landscaping, Electrical, Plumbing and Heating. Steven is a distinguished member of industry-related affiliations, including MAPM (Member of the Association for Project Management), CertIOSH (Certified Member of the Institution of Occupational Safety and Health), and FCIOB (Fellow of the Chartered Institute of Building). At PPS, our core values, are encapsulated by the acronym SERVE (Service, Excellence, Relationships, Value, and Expertise), which underlines our commitment to providing quality building services. We specialise in various aspects of the construction process, offering services such as Architectural Design, Planning Applications, Building Control, Project Delivery, and Handover and sign-off Documentation. Our approach is designed to alleviate the burden on our clients by seamlessly managing the entire project lifecycle. PPS engages vetted construction professionals to deliver quality design solutions aligned with client requirements. From securing planning permissions to adhering to CDM regulations, completing F10 notifications, and conducting safety audits, we ensure that health and safety standards are met throughout the project. We streamline the process by obtaining costs from our trusted supply partners, organising and managing the program of works, and ensuring the timely ordering of long lead material items to minimise delays. Our commitment to transparency includes producing written progress reports, keeping clients informed about project advancements, and promptly addressing any identified issues to ensure project targets are achieved. Additionally, PPS facilitates visits from Building Control Officers, oversees the issuance and registration of electrical and gas certifications, and manages resource allocation. With a customer-centric focus, we aim to create a stress-free experience for our clients, ensuring that every project is executed with precision and meets the highest standards of quality and compliance.
Experience great craftsmanship from experienced builders; we are specialist in new builds, groundwork and all form of extensions and conversions. All our tradesman are qualified and well experienced. We are also members of FMB which shows our sites have been visited by a qualified inspector to approve the work is to a high and safe standard. We offer: - -weekly task list to keep you the client updated - long term savings on heating costs as we use the best materials and methods. - saving you costs in materials as we are partners with over 6 builders merchants. -quick turnover time with extensions taking 6 weeks. -10 year building gurantee
Abdul turned up to give me a quote and just had a really good vibe about him. He was very professional and kept me informed every step of the way. An itemised invoice was provided and updated after any change so I was always aware of my costs. The team he had working on my job were professional, punctual and very polite. The work performed was excellent, I am extremely pleased with the final product and would definitely use them again and I recommend them wholeheartedly (which I have already).
Friendly, you first service. 20 years + quality construction services
Absolutely superb from start to finish. Jon does a thoroughly professional job and is a lovely man to boot. Turns up when he says he will - including quote. Found solutions to tricky bits of the job. Competitive price. Value for money Couldn't be more happy. Cheers Jon
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