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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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With over 41 years' experience in creating high quality bespoke building projects, look no further than Turley Properties Ltd for all construction / Landscaping services for your property. * Call Us Now For A Free Quote
Established in 2002 as a sole trader, I have developed a number of properties ranging from barn conversions to new build apartments. I have also project managed a number of bespoke new builds and conversions for high profile clients. All trades available!
Fantastic service from start to finish. Would certainly recommend. Has every trade available and the job went smooth.
ABLE HOLDINGS LIMITED
Cellar & Basement Conversion
Able flooring and renovations have been operating in the south east coast since 2020. We are covered with up to 5 million PLI and 1 million LI. Read our reviews on google / Checkatrade / TrustATrader for a review on just some of our works we have carried out. We work both residential and commercial sectors.
I am builder I have been working from last 9 years in this building industry And trying to provide quality work to british standard I can do any kind of building job If you need my any help Feel free to contact me
Feras Awayed Painters
Cellar & Basement Conversion
Work is a trust, and whoever among you does work, let him do it well. My work is what proves my skill.
Do you want the team that will improve your interiors to have a good work ethic and be detail-oriented? Look no further – at Altun building and Renovation, our goal is to go the extra mile and deliver excellent results of the finest quality. We provide a range of home improvement services that make your home more comfortable and spacious than before. With over 12 years in the industry, we are proud of our progress and in our commitment to ensuring our clients are never disappointed. From room extensions to kitchen renovations and from plastering to painting, tiling and everything in between, our abilities and expertise mean that we can make your dream home a firm possibility. Our comprehensive services can cater to any need and we work with rigorous attention to detail. Right from when you first contact us, we ensure a stress-free and reliable service with your every need taken care of. There won’t be any delays or misunderstandings nor will we ever go beyond the budget. Instead, you will find an efficient and friendly service from a team that isn’t afraid of long hours or challenging projects. Our rates are reasonable.Please contact us for a detailed chat and we hope to work on your project soon.
We were well please with Utim, his professionilsm, courtesy, promptness, his attituded to do the job right. We would recommend him, if we need work done in the future we will give him first refusal.
JCP Building Contractors are a reliable and experienced building company providing a wide range of building and construction services across Farnborough and the surrounding areas. We work with both domestic and commercial clients, delivering high-quality workmanship on projects of all sizes. Specialising in extensions, groundwork and structural works, our skilled team also undertakes brickwork, bricklaying and landscaping services, ensuring a complete, end-to-end solution for your project. From initial preparation and foundations through to the finished build, we manage every stage with care, professionalism and attention to detail. Whether you are planning a home extension, require structural groundwork, or need expert brickwork completed to a high standard, JCP Building Contractors are committed to delivering resultsj you can rely on. We pride ourselves on a friendly, honest approach and believe that no job is too big or too small.
With over 15 years building experience in the construction industry, GN Building Services (Stafford) Ltd are experts in all aspects of construction and project management. We specialise in both traditional and cutting-edge design and building methods. GN Building Services (Stafford) Ltd is not only a building company. We cover the entire project, from planning, design, building, renovating, electrical installation, tiling, and plumbing. We do not use subcontractors; all work is completed by our own employees. This means no delays, no waiting for specialist tradesmen; we finish the entire job within budget and on time.
If you want building work done then GN Building Services are brilliant, not just excellent!. Before we said to go ahead he had introduced us to four former clients and showed us the work completed. He and his team are probably the hardest working tradesmen I have ever come across and talk about working to time and budget. I should really keep this review quiet as they are very much in demand and I need some more work doing - but I can not rate them highly enough.
BA provide a very friendly, helpful and knowledgeable service. We excel in helping with design and thinking outside the box.
Simple job turned out to be not so simple. Turned up exactly when he said he would, did a good job, including taking on the extra degree of difficulty we had not foreseen. Job ran over from the single day expected, and returned the next day to finish off. Polite, efficient, punctual, and stuck to the price agreed.
Our vision at Customex Build & Electrical is to deliver innovative thinking and a first class service in all we do in support of our customers. We will endeavour to be the very best we can be, whilst acting with integrity, professionalism and honesty and operating in the best interests of our customers and the environment at all times. All our team are qualified to the highest of standards providing the best service and workmanship. Weather its a small cupboard to be built or a double story extension, with 30 years + of experience combined you can be sure you can rely on us!
Local small business offering multi trades. All pictures are of jobs undertaken by myself. Kitchens, bathrooms, plumbing, plastering, tiling, decorating and carpentry. High quality workmanship carried out by a reliable conscientious tradesman.
Quoted but just too expensive
RATED PEOPLE LIMITED
Cellar & Basement Conversion
Skilled groundworker with over 25 years of varied experience, including block paving and drainage work.
I would recommend Andy. He spent time evaluating the job required with a view to looking at less costly but effective options. Most of the time I was out at work, he called everyday when he was leaving to update me on progress. He communicated clearly and so there was no confusion with what the job involved and the final cost. He was also very nice to my dog. Thanks Andy.
Family run fabrication and welding business and construction company offering all types of manufacturing and installation that works closely with our clients our aim is to provide fabrication and welding solutions also building construction with honesty and quality also help to complete project on time
What an amazing job John did. He is a very talented ironworker . Our gate looks like it was made for our house . Would highly recommend .
We will listen to what your expectations are for your basement and make it a reality for you. With a vast experience in building and structural waterproofing. We will provide a very competitive quote.
Graham and his selected team did a great job for us turning our dark cold basement into a lovely room that we use everyday, he was very clear throughout the whole process from quoting to completion and did additional jobs at a fair price. He also liaised with building control meetings. I highly recommend his services and wouldn't hesitate to get him to quote for more work in the future. You can tell that he takes pride in his work.
At Sabr construction We Provide customers with the best quality of work for affordable prices.
Nice work, many thanks Omar
Over 15 years in trade Fully qualified gold ECS CARD Managers black card ESC CARD Very honest and reasonable prices
We are a midlands based building company who specialise in renovations, extensions and upgrades to your property. We also carry out all general repairs. We have many year’s experience with time served tradesmen who are fully qualified in all aspects of work required for your project, and we carry out all projects with our own in house team members.
We are a long established company and pride ourselves on job satisfaction, we can also provide references from previous customers and also photographs of previous work all are work is fully guaranteed
James did a fantastic job. He refitted an existing bathroom and created two new ensuites, and also built wardrobes and panelling in our hallway. He is reliable, trustworthy, friendly and his work is of great quality. I fully endorse and recommend him- he turns up as expected every day, communicates well and delivers brilliantly. We are quite happy for anyone to come and see his work .
General construction, refurbishment .......
Alex has completely refurbished my bathroom and i am thrilled with the result. Alex is very skilled and his work is excellent. He takes pride in what he does, and his attention to, and the care he takes with the smallest details, are not seen so often these days. Alex is obliging and helpfull with advice, and will consult his customer on details. He gets on with the job and does not mind staying late until he's finished what he is doing and cleans up before he leaves. He is a very pleasant man.
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