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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.
We offer high quality building work all jobs ar fully insurance electric and plumbing coming with certificate jobs available for have look to understand how we work we always leave customers happy
Victor and his team did a great job with fitting the electrics in the kitchen and plasterboarding the kitchen. They left the place clean and was reasonable with the price. I will certainly use them again.
Best Home Builders Ltd is a limited company with a professional and experienced team. With more than 14 years experience, we deliver excellent, high quality services like loft conversions, bathroom/kitchen planning and fitting, painting & decorating, plastering, rendering, tiling, dry lining & a lot more. We also collaborate with a plumber, a certified electrician and gas engineer, who can provide all necessary certificates.
Big John very helpful fellow.
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
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Welcome to KM Roofing- Your Plymouth Roofing Experts KM Roofing - Your Reliable Partner for High-Quality Roofing Services. At KM Roofing , we are proud to be the leading roofing professionals in the Plymouth area. With our extensive experience and unwavering dedication to excellence, we are committed to delivering high-quality roofing services to both homeowners and businesses. If you require roof repair, replacement, or a new installation, the J&P Roofing Solutions team of skilled and certified roofing experts is ready to cater to your residential roofing needs. We recognise the significance of a secure and long-lasting roof for your home, and we guarantee that each project is executed with the utmost standards of craftsmanship. Business proprietors in Plymouth rely on us for their commercial roofing needs. Whether it's flat roofs or pitched roofs, we possess the expertise to address a diverse array of commercial roofing requirements. Our objective is to safeguard the durability and dependability of your commercial property's roof, preserving your investments and assets. Emergency Roof Repairs: Unexpected roof damage can occur at any time. That's why we provide fast and dependable emergency roof repair services. Our team is on call 24/7 to tackle urgent roofing issues, delivering swift and efficient solutions to safeguard your property. Why Choose KM Roofing Ltd Expertise in Plymouth : As a roofing company based in Plymouth , we have a deep understanding of the distinct challenges presented by the local climate and building regulations. Our specialised knowledge is customised to address the specific requirements of the Plymouth community. High-Quality Materials: Our materials are carefully sourced from reliable suppliers to guarantee that your roof is constructed to endure the elements and endure the test of time. Ensuring Customer Satisfaction: Our dedication to ensuring customer satisfaction is steadfast. We maintain transparent communication, deliver precise estimates, and endeavour to surpass your expectations for each project. Fully licensed and insured: Your peace of mind is our priority. We are fully licensed and insured, providing you with assurance in the quality and dependability of our roofing services. Contact Us Today Whether you're facing a roofing emergency or embarking on a roof improvement project,
Please view our Website Trowelup.co.uk LABC partner
Responded promptly to my job request and completed the work satisfactoeily.
It's family business and we are happy to help people on any projects
Vinnie and his team did an excellent job of our external render, they were prompt, hard working and very tidy. I would unequivocally recommend their services.
Carpentry / Construction & Building Company Specialising in small to large scale projects. Specialised in Carpentry, Kitchens & Bathrooms
Hi :) I have a range of experience across the trade, with specialised expertise in the following areas,over 12 years: -in Drylining -in Carpentry - in refurbishing restaurants and houses. -Loft Conversions -House extensions After all that, I finally have the team, which we can do jobs from A to Z - Plumbing (gas safe certified) - Electrical (Certified) -Roofs -Loft Conversions -Extensions -Groundwork -Gardening -Fencing -Waste removal I'm happy to help across all jobs and answer any questions. Thanks for passing by, and I hope to hear from you soon :)
Job done to very good quality but job did run over due to the Christmas period overall very happy
Tani Dauti Building Services
Cellar & Basement Conversion
I have over 25 years experience in the building service.
Gary O'Connor
Cellar & Basement Conversion
DJ Construction Family run business with over 40 years experience. -Groundworks -Construction -Plastering -Carpentry -Roofing
Dh Property Services is a newly registered company who are happy to quote for any size job. 15 years in a manufacturing and installations ranging from flat pack furniture to complete kitchen/bathroom installs. commercial, domestic and landlord services
Great service from Dave, excellent job painting my summerhouse. I can recommend highly.
Stewart my work partner and myself Adam, combined have over 60 years experience in the building industry. We run a small friendly team of committed guys that have everyone in mind when it comes to health and safety and maintaining a clean and tidy work site with minimal disruption while works commence. Our primarily trades are carpentry/joinery, bricklaying, plumbing, plastering and landscaping. however Stewart and i alone have served lengthy apprenticeships with our fathers and right from the off have turned our hands to all aspects of the building trade. Most importantly we value our customers criteria and strive to go the extra mile in both keeping to strict rota and maintain the job is not only completed within the time frame but to a high standard. We honour our good reputation of being punctual and polite and most importantly easily approachable combined making it an easy working atmosphere which we feel is vitally important. We the team at Artisan's construction look forward to meeting new people and taking on new challenges, The dexterity of work we have undertaken is so varied but generally based around the property development aspect for example... extensions, loft conversions, renovations, layout alterations, roofing, ceramic tiling, landscaping and so much more. We have had years of dealings with building control planning and developing and a good able knowledge of using architectural drawings and structural engineers reports. Where and when appropriately we have an electrician and plumber on the team that can competently carry out works and sign off respectively. We as a team look forward to being of service and making you proud you've come on board and will strive to achieve this work based relationship. Thanks for taking the time to browse our page and take care, kind regards from all the team at Artisans.
Thanks for the hardwork
At MD Contractors LTD team of builders are proud to provide our customers with the best quality of home improvment service. We guarantee top-class workmanship and a flawless finish. We work with complete respect for our client’s time,budget,and property;and you won’t need to worry about coming home from work and finding your house in complete chaos as we will always clean up after ourselves at the end of every day. Best regards,Tony”
Would highly recommend Tony. Super efficient for first communication, he came to the house to quote the same day and completed the following week. Job finished to a high quality
If you are thinking of extending, converting, or in any way structurally altering your home, we can assist you with any or every stage of your project.
Paul did an excellent job of removing the old storm porch that was attached to my front door. Everything removed, rubble taken away, great chat & well priced. I wouldn't hesitate to recommend Paul to anyone looking to get some demolition work done! Thanks Paul!
With years of hands-on experience in the industry, we are committed to providing reliable, high-quality service with a focus on customer satisfaction. Our team specializes in delivering professional solutions tailored to each homeowner’s needs, whether it’s repairs, installations, maintenance, or complete project management. We take pride in our attention to detail, honest communication, and dependable workmanship. Our staff is fully trained and continuously educated on the latest industry standards, techniques, and safety practices to ensure every job is completed efficiently and to the highest standard. When you work with us, you can expect professional service, transparent pricing, and results you can trust.
Excellent. When no-one else would quote, he diagnosed a fault in an obsolete fluorescent light and fixed it instantly. Just started in business and seemed unsure of how to collect payment, but sure he will soon sort that out. Will certainly use again.
JP RENEWALS LIMITED
Cellar & Basement Conversion
10 UK experience ( plastering ,laminated floor installation,tilling,painting,bricklaying) specialities Venetian plaster and hi luxury decorations,joiner and carpenter level3 ,curtain wall installation level2 ,plasma,ipaff ,working at heights training course ,last year learning stone masonry heritage work ,and breathable plaster application with architect Andrew macavoy
Hi, I’ve 25 years experience in joinery, from new builds to renovations. I do alot of garage conversions,man caves, sun rooms and loft conversions at the moment, as well as all general joinery. From doors to lofts (no job too big or too small)
We hired Ionut to lay some decking and build two planters and some bench seating as well as landscape the garden and laying a new lawn. Ionut and his team did an exceptional job - the work is very neat and professional and we ended up with a great finish. They were polite, respectful and worked very hard. I have already recommended Ionut to a friend and hired him for another job (laying slate slabs) which was also done incredibly well.
Excellent, efficient job and area was left incredibly clean and tidy at the end. Very good communication throughout the quoting and arranging process. Highly recommended.
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