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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.
I am an experienced builder of 35 years only taking on smaller projects mainly carpentry but other aspects of building may be considered.
Since last request to rate dag ltd. We have learnt that due to an e mail hicup our quote was lost.When the problem was realised I have been more than satisfied with their prompt correspondence
We are a time served people who have done a range of jobs over the last 20 years. All aspects of building work, renovations, extension .We have been members of my hammer website for the last 6 years with many customer completed job reviews to be seen.
Keith is excellent. Couldn't recommend him enough. Very creative too as he had a difficult job here with us and really worked hard to give us the best result and finish. Keith also fixed many other jobs around our house and is booked to come back to do more. Really recommend him. Don't look anywhere else. Ruth.
From a single wall to a complete house, inside and out, plastering/rendering. Also roofing, stonewalling, extensions and general maintenance....no job too small. Please feel free to email me or leave me a message and I'll get back to you.
Reliable, personable, conscientious, trustworthy and reasonably priced. Can definitely recommend .
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We are specialists in refurbishment works including bathrooms, kitchens, flooring, painting, decoration exterior work and re point.
Alex and his team are punctual, professional and have done a great job for me, I recommend the business .
Hi there, I've had 12 years experience in the trade, I have ways worked for companies and decided to go self employed and take on the tasks myself. Please if any questions or advice don't hesitate to ask ill do my best to help you.
We recently had our subfloor replaced and the whole experience was excellent from start to finish. The carpenter was friendly, professional, and clearly very skilled. He took the time to explain what needed to be done and made sure the work was carried out to a high standard. The new subfloor is solid, level, and has made a huge difference to the room. It's great to find a tradesperson who is reliable, turns up when they say they will, and takes pride in their work. I would highly recommend him!!
SELF EMPLOYED 36 YEAR WORKING HISTORY & EXPERIENCE INCLUDE: •Building / Maintenance contracts for •Brighton and Hove city council. •Building / Maintenance contracts for •Lewis district Council. •Liaising with planning officers. •Public house renovations. •Office fit outs. •House building. •House extensions. •Loft conversions including adaptions to adhere with disability regulations. KEY SKILLS & COMPETENCIES •Project planning - Leading building contracts and ensuring lines of communication are strong within those teams. •Financial planning of contracts. •Negotiation skills, When establishing contracts with suppliers and Vendors. •conducting statutory inspections according to legislation regulations. •Skilled and Joinery (first and second fix’s). •Shop fitting / decorating. •Plumbing. •Bricklaying. •Roofing. •Plastering. •All Ground works and drains. •Experience of health and safety and on site risk assessments. •Raising method statements and issuing permits to work on site. •Use of IT and telephone systems to maximise the effective management of the project/contract. •Excellent team player with the ability to work on own initiative. •Group of 5 full time employed workers. •Great environment awareness. •Possesses a common sense. approach and “can do attitude“ to problems. QUALIFICATIONS: •City and Guilds Plastering •City and guilds bricklaying and ground work. •Federation of master builders carpentry. •Experience of mechanical and electrical refrigeration. •Health and Safety - Current. •Environmental Awareness - Current.
Very pleased with Wes work Did a great job
Noades Property Services
Cellar & Basement Conversion
Noades Property Services covers the full range of property work — plastering, rendering, general building, patios, and landscaping — across Hertfordshire, Cambridgeshire, and Bedfordshire. Whether you need a smooth interior finish, a full extension, or a garden transformed with a new patio, we bring the same standard of care and craftsmanship to every job. We pride ourselves on reliability, clear communication, and quality that lasts — no job too big or too small.
McCombie Construction is all about flexibility, innovation and above all, results. Whether it's a dream house or a new bathroom, McCombie Construction has the skill and expertise to exceed your expectations. We are fully insured for your piece of mind.
Did exactly what they said they would do at the time they said they would do it. Two very pleasant young men who did a good job, at a very good price. Would recommend the company and would certainly use them again. Many thanks Ruth
OUR TEAM HAVE MASTERED THE HIGHEST SKILLS AND CRAFTMENSHIP OF THE WHOLE DOMESTIC BUILDING INDSUSTRY AND WE ARE LOOKING FORWARD INTO BRINGING YOUR PROJECTS INTO REALITY.
Florin's work on my new staircase was excellent. His work was clean and tidy. When there were opportunities to take short cuts, he didn't, always completing a thorough and professional job. He gave advice and talked through each of the options carefully. His work was completed on time and on budget. His team were courteous, polite and cleaned up every day. The final job was better than expected. I would have no hesitation in using him again.
Todd Property Services
Cellar & Basement Conversion
Here at Todd Property Services we pride ourself on our experience and workmanship. With over 15 years experience across all trades including: Plumbing Landscaping Groundworks and Drainage Driveways Painting and Decorating Bricklaying and repointing Wood work Concrete finishing Fencing Guttering Garden and site clearance Jet washing and cleaning. We aim to complete every job in a professional, clean and timely matter. Customer satisfaction is key. There is no job too big and no job too small and we are keen to take on challenging and difficult jobs. We look forward to working for you.
Efficient, reliable and professional builder available for large or small building work. Qualified for over 25 years.
Andrew and the team at Orchard County Builders were great from start to finish. Andrew started promptly and the work has been completed to an excellent standard, he even went above and beyond with a few extra tasks, clearing away the rubble, mess and materials that were in addition to his work from our renovation. We are grateful for his hard work and will be in contact again if we have any further work completed. Thank you.
JW CARPENTRY AND BUILD LTD
Cellar & Basement Conversion
Welcome to JW Carpentry & Build Ltd – a reliable, cost-effective builder based in Bristol. Established in 2020, we’re a family- run company, priding ourselves on delivering outstanding results that enhance your home’s value and functionality. Specialising in beautiful house extensions, property conversions and property renovations, we approach every project dynamically, delivering to your requirements and transforming your home to suit your needs. From new roofs and emergency roof repairs to full property conversions and storm damage repairs, we handle every project with care and expertise. Whether you’re planning a complete new build home, private development, or restoring a listed building, we can provide a fully project-managed service from start to finish. Our skilled team ensures high-quality craftsmanship, prizing professionalism and attention to detail.
***Building the future.... ***Renovating the past...*** TA Building Firm. offers professional services plastering, rendering, and building work. We have years of experience in this line of business. In addition to plastering and new builds, we carry out a vast range of other services including, Our services are: * Single Extensions * Bricklaying & Blocks * Chimney Repairs * Plasterboarding & Plastering * External Rendering * Bathroom Instalments * Wall/Floor Tiling * Roofing & Facials * Block-paving & Landscaping * Kitchen Carpentry * Handyman jobs Our aim is to provide you with a reliable and friendly service.
Taff did a fantastic job renovating 2 bedrooms, including taking back to brick, removing a chimney and skimming walls. Also arranged for electrician to fit lights. Taff is very friendly and personable and always felt comfortable having him nd his team in the house. Would recommend.
We take pride in delivering all jobs professionally, with exceptional attention to detail and a strong commitment to quality workmanship. Every project is completed to the highest possible standard, using reliable methods and care from start to finish. Customer satisfaction is our top priority, and we work closely with every client to ensure their needs and expectations are fully met. We stand behind the quality of our work and always aim to provide dependable service, honest communication, and results you can trust. Our goal is to build long-term relationships with our customers by providing outstanding service and achieving 100% customer satisfaction on every job.
Hi, I've been in the trade of building for 20 years with a keen eye to detail. I'm reliable and honest. I'll will always keep you updated on the progress of any project and always make time to ensure that my customers are happy during and after the projects are completed. Assuring you of my best intentions Darren
I found Darren to be friendly and professional. His quotes were reasonable. The jobs changed slightly once the work started and Darren took the time to explain the options. Some changes required additional money from me but I was happy to pay as the end result was worth it. I would definitely ask Darren for quotes in the future.
We specialise in the complex property refurbishment projects. Having years of experience we provide the highest quality services in following areas: all kinds of carpentry/joinery, internal/external decoration, kitchen/bathroom refurbishment.
Amazing work, professional, flexible. So lovely and helpful. Can’t recommend Slawek enough!
Caspian Building & Construction
Cellar & Basement Conversion
We are your premier turnkey construction and renovation partner in Manchester. We specialise in comprehensive, full-house transformations from concept to completion (A to Z). From major structural extensions, roofing, and full renovations to expert kitchens, bathrooms, flooring, certified electrical work, and plumbing-we handle it all. Our mission is straightforward: to deliver exceptional craftsmanship, reliability, and a seamless experience for every client. Many thanks for choosing us.
PRESTIGE BUILDERS GROUP LTD
Cellar & Basement Conversion
Dundee based family run business specialised in property maintenance and improvements.
Excellent service. Very professional and efficient. Very tidy and a great job done! Will definitely use again!
DC Building
Cellar & Basement Conversion
I have been working as a builder from 2010 with good experience and knowledge about all tipe off contruction ! we undertake all tipe off jobs small or big ! I have my own team and always looking to make our client's happy ! reliable and always there in time thanks !
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