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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.
Berkshire Building & Construction
Cellar & Basement Conversion
We offer only the best in workmanship. Punctual, honest and are here to work with you to achieve your goal however large or small on your property. Our work is never sub-contracted out and all work is done by or with us or our team. We have an excellent team that can excel in any given project. We have access to the best plumbers, electricians, plasterer’s, ground workers, brick layers and decorators. James’s background and passion is carpentry with level 3 city and guilds carpentry qualification 20years personal experience in construction and also 4th generation carpenter but through the many many years in the industry have learnt new skills and branched into other trades along the way. Thus being able to take care of everything in a property from the roof down to the oak flooring and everything in between. Ryan’s expertise is brickwork, ground work, patios, block paving, drainage etc. Ryan has over 20 years experience in the construction industry specialising in all forms of brick work on site and also on extension and new building homes for clients. All work is carried out to the highest specification while being competitively priced. All trades that are under our umbrella are all qualified and have all the correct tickets and certificates in their specific field. We pride ourselves in the work we do but we also take great pride in our communication with our clients. Keeping good lines of communication throughout the process. Giving you peace of mind and keeping everything transparent as your vision is our goal Our list of works that can be undertaken by ourselves Conversions Extensions New build Out houses Loft conversions Steel fitting All roofing work All 1st carpentry All 2nd fix carpentry Stairs Kitchens Bathrooms Flooring Electrics Plumbing Gas engineering Brickwork/Blockwork Plastering Garden walls Retaining walls Painting and decorating Block paving and driveways Decking and fencing Fibreglass roofing We look forward to meeting you and leave you feeling once we have finished the job that you were glad you chose us
JN PRO BUILD LTD
Cellar & Basement Conversion
We are small independent building firm who work to extremely high standards, Over the many years we have undertaken 1000s of full building conversions, Inc bathrooms,kitchen, load bearing walls, studwork, first and second fix joinery, first and second fix plumbing. We our fully qualified and work to the very highest standards I
My name is Mentor, I have more than 10 year’s experience in construction especially Landscaping, decorating, extension and loft conversions! I pride myself being able to complete the jobs in attention to detail and leaving happy customers! For over 10 years been getting work mostly as a recommended trader, looking forward to extending the business and helping new customers to build their homes & gardens ,to help converting your ideas and visions in reality!
Really quick response and work completed really well. Would certainly use again, recommended. Very nice guy also.
Jd projects have been going 28 years in the construction industry,we are a family run business operating from ruislip covering greater London and beyond. We specialise in all thing building from bathrooms to lofts fencing tiling and more. We would love to hear from you either it be a small job or large project expect a friendly timely quote. John Jdprojects
27 years experience a company you can trust,leave nothing to detail.
Steve replaced our guttering, downpipes and a bargeboard. It wasn’t a straightforward task as it’s an old property but he did an excellent job and carried out the work quickly and efficiently at a competitive price. I would highly recommend him.
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Over 30 years trade experience
Great work, came when he said he would and did a great job. thoroughly recommend.
At SquareOne we have teams to cover all aspects of improvements within commercial and domestic properties whether its a full or part refurbishment, a maintenance service we've got you covered. Our carpentry teams knowledge and craftsmanship is unreal from bespoke furniture to general repairs. We also have our own designers for where your dreams can become reality. whether it's a home cinema or a complete interior re-fresh. Our Electricans have over 20 years experience covering all domestic and commercial installs from niche lighting designs to machinery maintenance. whether you have a simple one man job or need a team of professionals, you can have the convenience of dealing with one company.
Fantastic service. Thank you so much. Great value. Would highly recommend
We have high standards in our work both quality and quantity. Our workmanship is to support your needs and expectations.
Responded quickly Full description of work necessary and price and starting date On site for 3 days - very tidy : quality work :site left clean .Pleasant people to work with
Hi my name is Craig Nicol, I have been a builder for over 30 years working on sites, offices, shops, hospitals, schools, private homes and also worked for councils. I am a hard worker and take pride in an excellent job finish.
Excellent work. Had no problems very satisfied with work, exactly what I wanted. Very helpful in making right choice. Helping with kitchen next.
Product Plumbing&Heating
Cellar & Basement Conversion
Bob Construction Ltd was established in 2007 and has gone to a limited company in 2016. We provide Bristol's home-owners and landlords with professional and affordable property maintenance services in Bristol and surrounding areas.
Very happy with work. Arrived promptly and were very happy to take on additional small tasks as requested on the day. Would definitely recommend for further work.
Dear Customers IE-DESIGN with years of experience offers interior and exterior work such as painting and decorating.We also undertake and manage landscaping and gardening services of any kind. Additionally our experience leads to the unique 3D projects if required. We can promise a competitive price and perfect finish as Customer satisfaction is at the heart of everything we do.
Fabric Construction LTD
Cellar & Basement Conversion
Welcome to Fabric Construction Ltd, With over 2 decades of experience in the construction sector we are your first choice for all your construction needs. We undertake full extensions, maintenance and all minor works. We specialise in period properties, under taking all specialist works involved with these types of properties. We carry out works involving: Lime works Cast iron Roofing Carpentry and specialist oak repairs All general building works and project management
Here at TJ Hughes landscaping and property maintenance we specialise in transforming your dream garden and house into reality With our new technology we can show you visuals of what your garden can look like right before it’s even been started.. We cover a huge area from Norfolk to London and everywhere in between We provide quality landscaping, from fresh lawns, fencing, decking and patios to full garden redesigns. TJ Hughes are highly dedicated to the landscaping trade, all members here at TJ Hughes ensure that our workmanship is to the highest of qualities. We have also ventured out as a team to property development, things like painting and repairs plastering and brick work Why choose us when there’s many companies out there? Well here at TJ Hughes we are a team built from highly experienced and skilled tradesmen that are trained to work safely and confidently within any work environment. Attention to detail and to have pride within the work throughout ensuring its completed on time to your exceptions and budget. Services TJ Hughes can guarantee : Friendly service Fully insured work Experienced and fully trained team Personal landscape designs Before and aftercare advice Free estimate Fast response Top quality Clean and tidy Don't stop and hesitate, give us an email or ring to book a date for your free estimate
We are specialised in Kitchen, bathrooms and all type of furniture instalation. We are team of handyman, plumer, electrician and carpenter.
Excellent Kitchen Tiling! Peter did an amazing job! Professional, friendly, and efficient, he completed the work quickly. The pricing was fair, and he kept everything clean throughout. Highly recommend for quality tiling!
We do all aspects of bathrooms and minor building works, we take pride in our work and enjoy leaving the customers with a smile on their faces.
Our build prerequisites were to divide a room & close an open archway, build two extra walls, move steps and a handrail, put in two entrances with doors for the new build and paint & carpet this area. Matthew (MDCC Construction) was qualified and very helpful – giving us good advice. He is an honest, tidy and thorough builder, willing to accommodate the building manager's questions and happy to make amendments. We were thrilled with the speed and finish of this build, and we will definitely use them again.
Been working as a joiner for 14 years. Happy to say I can put my hand to most types of joinery from building house or extensions, to fitting kitchens and finishings.
I had a tight schedule for my job to be completed in, and Ryan got it done to a fantastic standard, and made me feel like a valued client at all times. Highly recommended, thank you!
Hi, At Tw Installations we offer a service of high quality work, to give you the customer piece of mind . We are friendly so please don't be worried to ask questions if you have any queries, we are reliable and trust worthy. Thank you Tom
We are a local Maintenance and building company based in the heart of Stoke on Trent which carries out projects over Staffordshire and Cheshire at a very competitive price for a very high quality job. We pride our selves on customer satisfaction and reliability. Our trades men are all time served and have a vast wealth of experience and expertise.
A first class job.
Takle Building Ltd is a friendly and reliable building company with over 32 years of experience. We cover a wide range of building work from small repairs to new builds. We also cover all aspects of painting and decorating interior and exterior.
Paul and his team were very professional in their approach and work. They listened to what we needed, and even with the extra unexpected work we asked of them still finished on time. I would highly recommend them to anyone and will certainly be using them for any addition work that I need.
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