Find local basement conversion specialist near me
Over 10,000 rated tradespeople
are ready to help you get your job done
Over 3 million happy homeowners
have found a quality tradesperson
Over 1 million ratings
with 88,000 5* ratings in the last 12 months
Join our group of happy customers
Thousands of 5 star reviews
Read real reviews from customers about their service experiences.
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.
JMORRIS BUILDING CONTRACTORS LTD
Cellar & Basement Conversion
South Yorkshire based building company with a superb knowledge of the industry supplying a exceptional service as shown in some of our latest work in the gallery Our team of tradesmen and apprentices will work hard throughout each individual project to make sure customer satisfaction is met and we leave with a 5* review and a positive feedback from yourselves
Our team consists of skilled engineers and all our projects are covered by Liability insurance, So you will have complete peace of mind and reassurance. We are more than welcome to meet you and provide our professional advice. For more information please visit our website: blockopsgroup.couk
Blockops teams created and knocked through my kitchen wall into my living space adding an extension, and creating a downstairs bathroom. They did an amazing job. They were really transparent on cost, the standard of work was excellent. They’re flexible, accommodating and always find a solutions. Added this they finished on time. I would fully recommend them, and will use them again.
BNT Construction ltd offers a full range of construction services. We take pride in offering competitive services at competitive prices. Services ranging from Groundworks to full house refurbishment or home maintenance ,drainage , basements , piling . Also we can pride ourselfs as the fastest and reliable builder as per customer satisfaction . Latest extension completed from the aprovals of documents and council agreement 4 and half weeks thats based on demolishing the existing build and rebuild the entire extension with fitted kitchen underfloor heating etc. Quality and profesionalism are and always be a priority !!!! Team BNT
Excellent service! Will definitely use again!
Estabilished in 2006 , based in Edinburgh but also covering East Lothian, West Lothian and Fife. Providing high quality, clean, friendly service with attention to detail, all work is carried out to the highest standards, guaranteed and insured. We use the latest tools available to provide dust extraction with cutting and sanding machinery, we also research available materials and use only the best to achieve a long lasting effect. We provide complete renovations including bathroom and kitchen fitting, tiling, joinery including flooring fitting, plastering, painting and decorating, plumbing, structural work, loft conversions, extensions, all with extremely high attention to detail.
Can’t recommend this company highly enough. Rafal done all the work himself renovating our bathroom. The quality of finish is to a high standard. I would not hesitate asking him back.
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M12.5%2020.392a1%201%200%2001-.54.888l-5.274%202.73a1%201%200%2001-1.435-1.109l1.494-6.588a1%201%200%2000-.306-.964l-4.723-4.254c-.65-.586-.287-1.666.585-1.74l6.105-.514a1%201%200%2000.846-.629L12.5%200v20.392z'%20fill='%23F7DB34'%20/%3e%3c/g%3e%3c/svg%3e){kind=small}
Friendly and reliable service fully insured
Did a poor job. Begged to be paid and promised to return to fix issues. He never did and ignores messages. Felt not sealed properly, bubbled out and on the front where visible. Knocked 2 bricks completely loose and just left them like that. Didn't mention them. Regret taking a punt on him. Silly of me to pay the full amount. You live and learn.
LM Home Improvements
Cellar & Basement Conversion
5 years experience on my business All Garden improvement and design Fencing Tiles Driveway m Artificial grass Slabs Block paving Artificial grass Fresh turf Walls bricks and blocks Wood work & Pregola and much more
An builders & refurbishment We do all aspects off building trades To a good standard We have good team players from blokes to women Thank you so much for looking and using our services
Very efficient service from the initial contact to finishing the job. Polite, professional and efficient. I would highly recommend. We definitely be using them in the future.
Bonmar LTD
Cellar & Basement Conversion
Here at Weathertite Constructions we cover a wide range of building roofing extensions conversions damp problems drainage with camera inspection, garden design with patios driveways and walls. James has 20 years experience Lee has 35 Carl has 10 we are here to provide a good service information and a very reasonable quote kind regards lee
Did a great job considering our budget and practicalities. Removed all waste and left the roof looking in much better condition.
Rated People
Cellar & Basement Conversion
A & E Structural Work
Cellar & Basement Conversion
A&E structure works , we are small companay with experienced team, we carry out all sorts of works, but mainly 1st fix structures and roofs, any loft conversion, extensions and demolition.. velux installation and many other things. any questions are welcome. Many thanks A&E structure works.
Our team of skilled professionals is dedicated to delivering outstanding results, whether you need general maintenance, plumbing, TV mounting, painting and decorating, carpentry, furniture assembly, hanging and wall mounting, or floor sanding. No job is too big or too small for our capable hands.
Michael did a great job hanging a new bedroom door. He came at short notice, was knowledgeable, friendly and cleaned up afterwards.
We offer a range of great products, and building designs. We simply allow you to choose which one suits you best. 35 years of delivering service and excellence, We can help whatever your budget. Bringing peace of mind to the places you live work and play.
Vision Eco replied to my advert, but they were not quite what I was after, Peter was very pleasant on the phone.
GJH Joinery services Ltd is a trusted, family-run joinery business with over 30 years of experience in the trade. Based in Glasgow, we specialise in all aspects of joinery and bespoke woodwork, providing high-quality craftsmanship to both residential and commercial clients. Our expertise covers everything from custom kitchens, doors, windows, and staircases to fitted furniture, extensions, renovations, loft conversions and restorations. With decades of hands-on experience, we take pride in delivering precision workmanship, attention to detail, and reliable service on every project—no matter the size. At GJH Joinery Services Ltd, we combine traditional joinery skills with modern techniques to ensure the best results. Our long-standing reputation is built on quality, honesty, and customer satisfaction, earning us the trust of repeat clients and strong word-of-mouth referrals throughout the years. Whether you’re looking for a one-off bespoke piece or a full property renovation, you can rely on our experience and craftsmanship to bring your vision to life.
Couldn't get better! True professional and takes pride in his work. Have another project in mind and will definitely be getting George to do it. Obviously highly 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
25 years experience as a builder and over 15 years running my own business I specialise in property renovation, loft conversion, bathrooms and kitchens fitting Cooperating with and architect, fully qualified electrician and Gas Safety plumber All job insured
Andrew and his team did a great job with our refurb. His quote was very competitive and he was easy to communicate with. Very happy with the finish. Would definitely recommend him and use his team again for any other work in the future.
We are pleased to continue providing a professional and dependable service to all our clients, fully recognizing the essential role that high-quality standards contribute to our success. Looking forward, we anticipate that the robust relationships we are cultivating will result in an increased number of satisfied clients, fostering further recommendations and sustainable growth.
Fedor and his team are polite, hard-working and extremely talented. It was a complicated job and Fedor handled it brilliantly. We are absolutely delighted with the beautiful London Stock brick wall that has been built. We would definitely recommend Fedor and Cuicut Construction, and will certainly use them again in the future.
D L EVANS CARPENTRY
Cellar & Basement Conversion
Fully qualified carpenter with 16 years experience. All carpentry work undertaken including, 1st and 2nd fix work, kitchen installation, roofing, installation of windows and doors, tiling, etc. I have a wide range of experience with both small and large jobs including new builds, extensions and renovations. I currently have two qualified carpenters who I employ and I also have contacts within all sectors of the construction trade, which enables me to project manage a whole job if needed. I take great pride in completing my work to a very high standard and I have an excellent eye for detail. References from previous customers are available.
SNP Roofing is a locally run business. we have 14 years in the trade, and give 100% satisfaction in every job. We cover all aspects of roofing and building work, from new roof installation, flat roofs,new build extensions, garage conversions and painting and decorating. Take a look at some pics of our previous work
Did what we wanted him to do to a good finish, will recommend. Thanks Sam
'%20rx='20'%20/%3e%3cg%20fill='%23FFF'%3e%3cpath%20d='M29.376%2016.914c-.555%200-1.006.454-1.006%201.013v37.416c0%20.578.472%201.014%201.097%201.014h34.109a1.007%201.007%200%200%200%20.972-.83%201.012%201.012%200%200%200-.161-.76l-6.446-9.416c-.375-.548-.567-1.085-.586-1.642-.034-.977.516-1.952%201.402-2.483%204.8-2.878%205.808-7.575%205.808-11.009%200-7.335-5.925-13.303-13.207-13.303H29.376ZM63.594%2059.75H29.467c-2.505%200-4.467-1.936-4.467-4.408V17.927c0-2.43%201.963-4.408%204.376-4.408h21.982c9.14%200%2016.577%207.49%2016.577%2016.698%200%205.879-2.46%2010.687-6.944%2013.607l6.17%209.017c1.37%202.002.868%204.752-1.12%206.132a4.336%204.336%200%200%201-2.44.778h-.007Z'%20/%3e%3cpath%20d='M38.767%2027.797c0-.749.603-1.357%201.347-1.357h6.427c3.979%200%206.426%201.72%206.426%205.099v.123c0%203.132-2.325%205.098-6.365%205.098h-3.848l-3.985%203.998V36.76h-.002v-8.963'%20/%3e%3c/g%3e%3cpath%20fill='%23FFF'%20fill-rule='nonzero'%20d='M18.176%2069.2h2.156v3.878h3.976V69.2h2.156V79h-2.156v-3.934h-3.976V79h-2.156v-9.8Zm16.428%207.98c.43%200%20.826-.08%201.19-.238a2.72%202.72%200%200%200%20.931-.658c.257-.28.457-.604.602-.973a3.21%203.21%200%200%200%20.217-1.183V74.1c0-.42-.072-.817-.217-1.19-.145-.373-.35-.7-.616-.98a2.96%202.96%200%200%200-.945-.665%202.873%202.873%200%200%200-1.19-.245c-.439%200-.838.08-1.197.238-.36.159-.667.378-.924.658s-.457.604-.602.973a3.21%203.21%200%200%200-.217%201.183v.028c0%20.42.072.817.217%201.19a2.959%202.959%200%200%200%201.554%201.645c.36.163.758.245%201.197.245Zm-.028%201.988a5.343%205.343%200%200%201-2.086-.399%205.187%205.187%200%200%201-1.645-1.078%204.823%204.823%200%200%201-1.078-1.596%205.029%205.029%200%200%201-.385-1.967V74.1c0-.7.13-1.356.392-1.967a5.075%205.075%200%200%201%201.085-1.61%205.05%205.05%200%200%201%201.652-1.092%205.395%205.395%200%200%201%202.093-.399c.756%200%201.451.133%202.086.399a5.187%205.187%200%200%201%201.645%201.078c.462.453.821.985%201.078%201.596.257.611.385%201.267.385%201.967v.028c0%20.7-.13%201.356-.392%201.967a5.075%205.075%200%200%201-1.085%201.61%205.05%205.05%200%200%201-1.652%201.092%205.395%205.395%200%200%201-2.093.399Zm8.14-9.968h2.324l2.576%204.144%202.576-4.144h2.324V79h-2.142v-6.398l-2.758%204.186h-.056l-2.73-4.144V79h-2.114v-9.8Zm13.152%200h7.392v1.918h-5.25v1.988h4.62v1.918h-4.62v2.058h5.32V79h-7.462v-9.8Zm13.866%209.94a6.49%206.49%200%200%201-2.198-.385%205.817%205.817%200%200%201-1.96-1.183l1.274-1.526c.448.364.908.653%201.379.868.471.215.987.322%201.547.322.448%200%20.796-.082%201.043-.245a.771.771%200%200%200%20.371-.679v-.028a.85.85%200%200%200-.077-.371.778.778%200%200%200-.294-.301%203.079%203.079%200%200%200-.602-.28c-.257-.093-.59-.191-1.001-.294a12.201%2012.201%200%200%201-1.344-.406%203.787%203.787%200%200%201-1.022-.553%202.237%202.237%200%200%201-.651-.819c-.154-.327-.231-.733-.231-1.218v-.028c0-.448.084-.852.252-1.211.168-.36.404-.67.707-.931a3.183%203.183%200%200%201%201.085-.602c.42-.14.882-.21%201.386-.21a5.86%205.86%200%200%201%201.981.322%205.743%205.743%200%200%201%201.659.924l-1.12%201.624a7.1%207.1%200%200%200-1.288-.707%203.292%203.292%200%200%200-1.26-.259c-.42%200-.735.082-.945.245-.21.163-.315.366-.315.609v.028c0%20.159.03.296.091.413.06.117.17.222.329.315s.376.182.651.266c.275.084.623.182%201.043.294.495.13.936.278%201.323.441.387.163.714.36.98.588.266.229.467.497.602.805.135.308.203.677.203%201.106v.028c0%20.485-.089.917-.266%201.295a2.66%202.66%200%200%201-.742.952%203.353%203.353%200%200%201-1.134.588%204.924%204.924%200%200%201-1.456.203Z'%20/%3e%3c/g%3e%3c/svg%3e)
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles