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.
Professional , friendly and thorough of customers needs . All types of property works covered with many skilled tradesmen . All works bespoke to requirement .
AVOID AT ALL COSTS I can't recommend Tom. Previously TH&Jones Ltd he has changed the company name. He has left us with an extension that doesn't meet building regulations and needs to be taken down. Our house unsalable. I have an independent report to support it. Insufficient foundation, no damp course, insufficient insulation, incorrect installation of roof. He said he would rectify if we paid for 'things unquoted' but failed to show exactly what. We haven't heard from him in months. Stay away!!
Local Renewable Energy, Plumbing, Heating, Joinery, plastering, electrical and general Building Professionals. Trustmark Accredited, PAS 2030 Accredited, Green Deal Approved Installer and Gas Safe Installers. ECO 247 serve our growing clientèle of environmentally and economically aware customers. We provide plumbing, heating and renewable energy services, (including emergency call-outs when possible), throughout Prestatyn and in neighbouring areas in North Wales and the North West. We also specialise in general building work such as, but not limited to, Kitchens, Bathrooms, Extensions and full renovations of domestic and commercial properties. Our team includes heating and plumbing, joinery, bricklaying, plastering and electrical professionals with extensive knowledge and experience of mechanical and electrical engineering, renewable energy and technical consulting services. This combined skill-set allows us to develop systems that cater for the needs of traditional, modern, and state-of-the-art environments.
They were excellent and very reasonable
Hello we ar Polish builders with long experience. We trade North East And we join Ratedpeople
Yeah spot on just got on and got the job sorted!
Tekton Build LTD
Cellar & Basement Conversion
We are a well established Building company with over 20 years experience in the building trade. We build everything from New Homes, extensions, alterations and renovations.
LBD Kitchens
Cellar & Basement Conversion
K&H CONSTRUCTION SERVICES
Cellar & Basement Conversion
K&H Construction Services is a professional building company based in Guildford Surrey and the surrounding areas. From installing a new driveway to building your dream home, we can provide you with the help and advice you will need on helping you meet your expectations. We have an excellent reputation for our quality of work, which can be seen right here on our online home. K&H Construction Services can undertake a wide array of projects, no matter how big or small they may be. K&H Construction Services ensure that every project is finished to the highest of standards and more importantly - on time. We respect your property and and will ensure cleanliness at all times - we treat your home as we would our own. So whether you are looking for a small repair to your roof or you need to turn that wasted space into something habitable, look no further - contact K&H Construction Services today.
We are a small team based in Ross on Wye. We undertake all aspects of Bathroom Fitting , Plumbing and Heating , Electrical installations , Tiling and general property maintenance. We are City and Guilds accredited and work to the highest standard.
Excellent service and communication. Karl managed to fix a leak that other plumbers had failed to after several attempts. Tiling looks superb too. Thanks very much. Highly recommended
'%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}
Roofing , Cladding and Building LTD company. industrial , commercial, retail , private and agricultural . Building and renovation works. House renovations and remedial works. ASBESTOS REMOVALS AND OVERSKIN SPECIALISTS. flat roofing and tin sheeting. single ply and pvc rubber roofing. cladding ,rainwater pipes, and gutters. gutter clearance and blocked downpipes. GRP AND FELT ROOFING TOP SEAL APPROVED INSTALLERS Window and door sealing works, and re-sealing works. Machine operators and drivers. insulation works , internal and external. steelwork and metsec framing. maintenance and remedials Building works. All high level works and signage fitting. House clearances and removals. SOFFITS AND CANOPIES erected and dismantled . Full shed and garage demolition and removal works. Try us for a price , we won't be beaten. We cover all jobs nationwide. We provide scaffold and netting when needed and all work is guaranteed.
Excellent service, loaded job late last night and job is already complete above and beyond our expectations. Thank you so much, Luke�s has been very professional, communication has been second to none updating us throughout. The overall service has been outstanding would highly recommend.
About us: PPM BUILDERS NORTHAMPTON LTD is a building firm based in Northampton covering all aspects of building work. We offer a wide range of services employing both modern and traditional techniques in order to guarantee complete customer satisfaction. We have a full team of qualified regular sub-contractors who have been a part of PPM for many years, a number of whom were trained by Matthew - the director. We undertake work from small remedial alterations and maintenance up to complete refurbishments and renovations. Why choose us? 1. Honest & affordable prices - over the years, we have developed new techniques, knowledge and contacts which is the reason we are able to offer unbeatable prices for the standard of work that we consistently achieve. We are good at sourcing high quality materials and appliances for our customers which allows us to offer an even better price. 2. Professional and high standard work - PPM uses the highest quality of materials on every job and all work is carried out to the highest possible standard. 3. Unparalleled customer service - we provide full assistance and honesty from start to finish. We do not regard the job as complete until our customer is 100% satisfied. We believe communication is very important; we always keep our customers informed. Choose PPM for a stress free experience! 4. Fully trained & experienced - PPM has 15+ years of experience. All of our sub-contractors are very professional with years of experience. PPM have the best of the best tradesman. 5. Tidiness - one of the many positive comments we get when carrying out work is our tidiness. We ensure all jobs are only complete once the place is spotless! 6. Fully insured & guaranteed - public liability insurance held up to 1 million pound. All work is fully guaranteed; Roofing: 25 years; Rendering: 15 years; All other work is guaranteed for 1 year.
Matt and his team were great. The job was a complete redesign of our garden and the work was completed on time and within budget. Special thanks to Chris, Ross and Jamie who worked like Trojans and only needed a regular supply of strong tea to keep them going! Very pleased with the results and would have no hesitation in recommending PPM for your hard landscaping project.
hi, we are a small company with a group of skill in these areas carpenter, bricklayer, painter, handy man, etc. frist priority is customer
Bogdan did a great job on a quick garden clearance. Friendly service and kept in contact throughout. Thank you!
Experienced builder based in Tooting. Expert in structural work, layout changes, concrete foundations, steel structures, and main carpentry to bring your project to life. Dedicated to delivering solid, reliable craftsmanship on every job.
Professional job at a fair price
Welcome to A.K. carpentry & build established local business with Precision, passion, and sawdust. Your go-to for fine carpentry. Got an idea? Let’s make it real. Measure twice, cut once.
Quick&Easy Developments Ltd is a leading property development firm, dedicated to delivering streamlined, high-quality solutions for residential, commercial, and mixed-use projects. Known for our efficiency and cost-effectiveness, we focus on meeting modern client needs with innovative designs and sustainable practices. Our team is committed to transparency, speed, and exceptional service, ensuring that every project is completed on time, within budget, and to the highest standards. At Quick&Easy Developments, we simplify the complexities of property development to create spaces that inspire. We believe preparation is everything , We are friendly and hardworking Team that works to a high Quality and Standard. Services -Extension -New Build -Loft Conversion -Paving & Slabs For driveway and Garden -Paint and decoration -Home Improvements -interior and exterior painting -Door Stripping -wooden Windows Stripped &painted -Anti Vandal Coating -Wall Murals -Property Maintenance -property Repair -Install Plasterboard -Easy Filler Plastering French Style . -Multi Finish Plastering -Rendering
High quality and professional friendly service
MOST RELIABLE! SANDAROV LTD we know good work needs a great team. That's why when it comes to working with our customers for building and property maintenance we go above and beyond - doing all that's required to complete work to a high standard every time. With over 15 years of experience in the building industry, our reputation precedes us; thanks to our excellent attention to detail, competitive prices and long-term customer relationships. So, why should you choose SANDAROV for your next project? When it comes to delivering excellent quality work, you can rely on us. We're experts in our field, providing our clients with world-class work on anything from large-scale commercial construction to residential repairs. We pride ourselves on offering a dynamic, professional experience from the start to the finish of every project we undertake. With our professional experience and the pride we take in our work, no challenge is too large or too small for our talented team. Whatever your needs, let us know - and we can transform your plans and ideas into reality. With fast response times, bespoke design service and a two-year guarantee of all our work, you're putting your property in the safe hands. Got a fast turnaround on your next project? We offer fixed-price quotes and excellent timescales for a whole range of different construction and maintenance services, allowing you to get the work done when you need it done. Whether you're considering building from scratch, you're simply looking for a professional plumbing service, or you need some tiling done, we've got it covered. Our team of industry experts are equipped to complete the construction and maintenance work you need. From boiler installation to painting, carpentry to loft conversions; we're the ones you want to call. Thanks to our complete coverage for both employer and public liability insurance, we're a business you can trust to make those big changes. Our versatile team can do it all, whether it's providing maintenance to your existing property or transforming your kitchen or bathroom. We do it all, from full-house refurbishments to individual plumbing jobs. Whatever your problem, we're the service you can call and rely on. Do we sound like the perfect fit for your next project? Contact us today to find out more about our services, and what we can do for you. We're ready and waiting for your call, and we'll even provide you with a full reference list of our last projects for added peace of mind.
Anton did a great emergency call out job on some pipe work. I called him on Monday late afternoon, and he was able to come and see the work that needed to be done within the hour, he was then able to start work the following day, working around the roofers we had on site too. As I wasnt onsite when he did the inspection he sent me a video of the work that he was going to do, which was great! I would definitely recommend him, and will be getting a quote for some other jobs that need doing. Thanks Anton
CARING FOR CLAIMS Aspray (Sutton Coldfield) provide a property damage claims management service, helping policyholders who have suffered damage to their property and need to make a claim on their insurance policy. We've helped previous customers with fire, flood, storm, accidental damage, impact damage and various other insured events that have caused damage to their property. There is no charge to you, the policyholder, for the Aspray service provided that you authorise us to use our own vetted sub-contractors to complete any repairs or reinstatement works. Any excess stated within your insurance policy will still apply. Aspray (Sutton Coldfield) look forward to helping you. Aspray is authorised and regulated by the FCA for claims handling only.
Very professional and extremely knowledgeable
Please check our Checkatrade reviews! This is a new account. Ellis Roofing and Building Ltd based on the Wirral. Covering Wirral and surrounding areas. Our goal is to exceed the expectations of every one of our customers offering a wide range of building, joinery, bricklaying and roofing. We have a vast knowledge and experience to provide our customers with outstanding results for any of their construction needs. Our prices are competitive and we offer great customer service.
The job was posted on 22nd July 2025 and Wade Ellis of Ellis Roofing And Building Ltd responded 2 days later. After a survey, I received a quote on 26th July, which was accepted. A skip arrived on 29th July and the work commenced next day. The job was completed on 1st August. The bricklayer and his female trainee assistant got on with the job without any fuss, and they were very pleasant to deal with. The aim of the project has been delivered and I am very happy with the result. I recommend them. 5 stars!
Quality,reliable, friendly local General builder. No job too big or small. Happy to travel. Free quotes. Twenty years experience. All types of work undertaken.Bathrooms/showers.Decking. Garage conversions/.extensions. Stud partition work.References.
Mark was great. Hardworking. High quality. Friendly.
Trading as intrendbuilders and tesscon co uk search us on google We are a friendly, hard working & affordable company who specialise in All forms of roofing and general building, maintenance, fencing and landscaping, waste removal, end of tenancy property clearances, wooden & laminate flooring and more in all areas of Birmingham & surrounding areas.
kindly send me your contact details for more info about the contract oppurtunity
At TS Property Maintenance LTD we provide comprehensive home maintenance solutions to keep your property in prime condition. Our team of skilled professionals are dedicated to deliver top-notch services that ensure the comfort, safety, and functionality of your home. Whether you need routine maintenance or specialised repairs, we’ve got you covered. www.sthomemaintenance.com Insta- sthomemaintenance
Very professional work, and to a high standard. Very polite and extremely pleased with the work. I would highly recommend this gentleman
'%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