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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.
ND Demolitions Ltd
Cellar & Basement Conversion
Hello people ? most of the jobs is soft strip out and demolition ? buildings, and houses I got in demolition, 13 years experience and all hours people ? is very friendly ?????????
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I like bathrooms. He He
Gigf
Together with my partners we try to provide complete building service to commercial and domestic properties since 1996
Petar check the problem in detail and fixed it. He help to renovate the toilet with considerate recommendation and done the job very nice
Regency construction is a family run business We have the knowledge and ability to carry out the majority of construction and maintenance work in house We have a good reputation and are both reliable and trustworthy Our company is fully insured and all work is guaranteed Our most recent completed and ongoing work includes Extension and loft conversion in Brighton Garage conversion in Peacehaven Replacement kitchen and bathroom in Brighton Ongoing programmed and reactive maintenance on various residential properties in the area
Great work and prices you won’t find any one better
At OCTOPUSBUILDERSLIMITED, we pride ourselves on our extensive 16 years of experience in the construction industry. Our dedicated team works collaboratively to handle every aspect of your building project from A to Z. Whether it’s residential or commercial, we ensure quality craftsmanship and excellence in every job. Let us turn your vision into reality!
Great job and would definitely rate it higher if I could. Will keep in mind if I need other jobs done around the house.
Sovereign Building and Landscape Services has been established over 25 years. We pride our selves on our ability to always leave the customer with the satisfaction a first class job has been completed
We needed some buttresses built to support a garden wall. Fred was able to provide very practical help and advice which we were more than happy to act upon. The work was delivered in a timely way and to a very high standard. The guys were always cleaning up after themselves and always left the site clean and tidy. Fred is my go-to builder from now on and have no hesitation in recommending him to others!!
LOOKING FOR A TEAM OF BUILDING SPECIALISTS FROM THE LONDON AREA? We are Mirana Design & Build LTD , leading the way in affordable and reliable building companies in Bromley. All aspects of building work undertaken at competitive prices. Our mission is to provide the costumers with a no hassle building service where all work exceeds expectations, meets deadlines and offers excellent value for money. We work very closely with our clients to ensure complete customer satisfaction. OUR CUSTOMERS ARE VERY IMPORTANT TO US. WE SHOW TRUE DEDICATION TO MEETING THEIR EXACT NEEDS, AND THIS IS WHAT KEEPS THEM RETURNING TO US FOR BUILDING WORK TIME AND TIME AGAIN.
Excellent quality of work, speedy work, friendly, professional foreman/boss of company. His staff cleaned up after their work. They did arrive late on occasion but overall provided excellent building and decorating works.
Whatever the demands of your refurbishment project, Progressive Design London has the full palette of professional building services to help you meet and then surpass your expectations. If you are looking to fit out your current property, or are considering investing in somewhere new with an eye to redevelopment,we can be your expert partner through every phase of the project. Adding value to your property is not something that can only be measured in house prices. Complete refurbishment represents a rare chance to set up a property exactly as you would like it and you will want to make sure you have expert advice to make the very most of such an opportunity. We can help with the development of plans and design ideas, with issues of building regulations and planning permission and the complexities of external decoration, roofing, glazing, conversions and extensions. We can also take care of all your re-wiring, plumbing and heating requirements, fit your kitchens and bathrooms, and set our expert team to work on the bespoke joinery, cornicing and interior decoration that will add the final touches to a home of enviable quality. At, Progressive Design, we set ourselves the very highest standards, not just on craftsmanship, but also in terms of meeting deadlines and budget requirements. If your project involves a listed or period building, we will relish the opportunity to conduct the structural and aesthetic repairs while staying perfectly true to the original stone, brick and woodwork, and any other features that make your property so special.
In a nutshell, Marius and his team are great. They're kind, respectful and Marius is always available to answer every question you have - he def is the most knowledgeable builder I've spoken to. You get a very transparent estimate and sign a contract, for both parties' peace of mind. If extras come up, Marius openly discuss them with you before taking any action - my job required quite a few and Marius was also great to stay competitive price-wise whilst keeping the quality of the work sky-high.
The Cambridge Painting Company
Cellar & Basement Conversion
RPIOS LIMITED
Cellar & Basement Conversion
Our company is made out of hard working individuals with more than 30 years experience in the construction industry. We are specialised in loft conversions even though we can do any construction related work in any buildings. We have experience in loft conversions, painting, tiles placement, shutter carpenter work, brick work, laminate flooring, insulation placement, kitchen and bathroom fitting, plasterboard placement and many more. As we are new to this website we would appreciate some positive feedback after finishing the related work.
MF Maintenance carries out a wide range of works including roofing repairs, fencing, paving & decking, drainage, also indoor work; plastering & small repair/ maintenance jobs around the house.
Really pleased with the service. He responded quickly to my advert and provided a fair, sensible quote. Booking was easy and I didn’t have a long wait. Turned up on time, was polite, friendly, and professional throughout. The quality of the work was excellent and everything was left clean and tidy afterwards. Would definitely use again and recommend to others.
THe NOVA team has been in business since 2004, we pride ourselves on delivering quality on time and on budget
K levell & sons is well equipped to take on most jobs, We have over 25 years experience in property maintenance with city & guilds qualified tradesman. Our work is done to a high standard.We are also in close contact with other trades/ material providers
Really good job and two really nice people! They have been quick, polite and met my expectation!
25 years carrying out an array of handyman/maintenance work, relaxed manner with care and attention to each job. Proactive communicator.
Robeco 2010 Ltd : Rendering,Plastering , Tiling, Drylining,Drywall &Insulation -Residential -Commercial ,Extensions,Loft Conversations
Rob and his team did a really high quality job and we are very pleased with the end result (and I am the son of a builder, so my expectations were high to start with).. The finish is excellent on the render and the quality is constant through what was a fairly large rendering job on my detached house. The team were tidy and worked hard to the deadline throughout the process. If you need a high quality rendering job, then I would highly recommending considering Rob's services.
Mir Bia
Cellar & Basement Conversion
I work for mpb company
Hello my name is Tom. I have over 16 years experience working as a kitchen and bathroom specialist. Throughout my career I have acquired many different skills, but have maintained a passion for kitchen and bathroom installations.
Tom did a great job and is a nice guy! He's punctual and a tidy worker. The tiling work is just what we wanted. I'd use Tom again so can happily recommend him.
Builder
Great job
We are here to save your home from water damage with peace of mind, We have been about for many years to secure your first defense from bad weather entering your home
Task Property Solutions
Cellar & Basement Conversion
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