Find Local Basement Conversion Company 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
Find everything you need to know about hiring a local cellar conversion specialist. Extend or renovate an existing basement, or excavate a new one from scratch. 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
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.
Transform your underground spaces into useable rooms with the help of a skilled cellar conversion specialist in your local area.
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
A local basement conversion specialist is more likely to respond quickly as they’ll be right around the corner and ready to help.
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.
Do I need planning permission for a cellar conversion?
You won’t need to apply for permission for a cellar conversion, as long as:
- You’re converting an existing residential basement into a living space
- How you’re using it isn’t significantly different and the basement isn’t a separate unit
- You don’t alter the external appearance of the property, such as by adding a light well
- You don’t live in a listed building
Excavating a brand new basement which involves major works is likely to require planning approval.
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.

Questions to ask before you hire a basement conversion specialist
Whether you’re looking to build a brand new basement or simply want to extend or improve your existing cellar, there are a few questions you should ask before you hire a specialist to excavate your new room:
Do you have public liability insurance and what does this cover?
While it’s not a requirement for them to have it, it’s a good idea for your basement conversion specialists to have public liability insurance to cover you and them against any accidental damage done to your home or personal injuries. Make sure to always ask your tradespeople what insurance they have before you hire them. This will guarantee protection for both parties.
How many years of experience do you have?
Knowing how many years of experience your basement conversion specialist has will allow you to pick a tradesperson who you are confident has enough experience to carry out a high quality job. When you’re finding a tradesperson through Rated People, head over to their profile to check out the pictures on their work gallery and their ratings and reviews.
Do you use subcontractors? If so, are they licensed and insured?
Your basement conversion specialist is likely to employ subcontractors. It’s a good idea to confirm the qualifications and insurance coverage of everyone who will be working on your project, including surveyors, structural engineers and electricians. Anyone working with gas needs to be registered with Gas Safe, and anyone installing electrics (in England and Wales) needs to be Part P certified to be able to self-certify their work. These tradespeople will have valid documentation that you can ask to check.
What is your estimated timeline for completing the project?
Knowing what the estimated timeline for completing the project is will help you set realistic expectations about how long your basement renovation will take to complete.
How much will the job cost?
Asking how much the job will cost will help you budget for your project and will ensure price transparency before you hire. How much you’ll end up spending depends on the scope of your project, and where you live in the UK, so make sure you add plenty of details when you post a job.
G Greaves carpentry and building services of the complete package from new builds to residential cleaning,we cater for all our clients needs across London and Essex. Carpentry specialists. 17 years experience Fully qualified and certified operatives. All building and maintenance works undertaken. Fully insured. Guaranteed work.
George recently carried out some work at my property, including removing two stud walls, taking out an old toilet, and fitting a new sink. He quoted a very fair price, stuck to the agreed timescale, and completed everything to a high standard. He was punctual, professional, and cleaned up at the end of each day. The quality of his work was excellent, and the space looks much better now. I’d happily recommend George and will use him again in the future.
We are a family run company based just outside of Chester and have worked in Chester,Wirral and North Wales for over 30 years.We undertake all aspects of building work.We specialise in new build garages and extensions.We fit replacement rubber roofing at very competitive costs.Replacement fascias guttering,cladding etc. We have been general builders for more than 25 years. . We undertake structural steelwork,renovations and ,we have completed many house refurbishments for local developers in recent years,mostly in the Chester area We have built new build houses. Fit new fascia and gutter systems.We offer plastering services,We always promise to be competitive on price whilst providing a top class service.We are always fair in our price and customer satisfaction is paramount. .
Colin and his team did a great job - wall repaired good as new. Very professional and good follow-up communication and competitive pricing. Would recommend highly.
MTP Contracts ltd is a well-established company working in Stourbridge and the surrounding area. From damp proofing and sound proofing to extensions or conversions we can assist you. Please view our web site for full details.
We are very pleased with our garage conversion. It was well designed to give maximum space and a lovely room and shower room. All the work has been done to a very high standard. The finish is good and all the boys who worked in our home were pleasant and thoughtful. I would recommend MTP contracts
Plum Building Services Ltd is a building company based in London. We work for both landlords and private home owners on new builds, extensions, refurbishments, repair and maintenance. No job is too big or too small. Quality is our guarantee.
Over 30 years trade experience
Great work, came when he said he would and did a great job. thoroughly recommend.
We are a small company based in cardiff with twenty years in the industry ,we cover any thing from a small leak to full installations of bathrooms and kitchens,we also incude tiling,plastering ,carpentry etc in our skill set.
Darren did a great job on the bathroom. Would recommend for anyone considering hiring him
As a professional and hard-working company, Apexcpm offers a high-level service with a dedicated focus on communication and results.We put our clients first,ensuring our work is carried out with precision and consistent professionalism.Our services include renowned property renovations,garage conversions,kitchen refurbishments,fitted wardrobes,custom designed furniture and much more! Fully qualified with NVQ level 3,qualified & experienced tradesmen who are Gas Safe & NICEIC-approved. Established in 2018, we’re an Uckfield-based family-run business & together,we share over 30 years of experience in the trade.We have an extremely high number of 5-star reviews online, and our testimonials speak for themselves.We are also lucky enough to have a considerable amount of recommendations and referrals thanks to our reputation as a reliable, knowledgeable and highly skilled company.
we pride ourselves in top quality workmanship we are fully insured ,we always keep our site clean and tidy . (no fuss no dust thats us )
Needed some internal work, including walls and chimney removal. Price was competitive and the work was excellent. Turned up on time, kept us informed and no hidden extras! Not only was the work first class he also took the hassle of building control, submitted the documents and when the inspector wanted an extra bracket for the chimney, he was there, as arranged 2 days later to fit it. If anyone is thinking of needing building work, make sure you include Kevin in your plans.
I all ways wanted to be a bricklayer just like my farther so he sent me to college witch I did for two years learning the trade then worked for various companies gaining my experience giving me the opportunity to working with other trades witch I started to learn witch gave me more confidence to work for myself so I could provide a good customer service with the reliability and attention to detail with the 33 + years in the trade.
5 star! Quick response to advert, & quote. Arrived on time, did a great job & cleaned up afterwards. Definitely use again.
Saltire are an all trade Home improvements and Renovation Company based in Edinburgh and the Lothians We offer all trade services including electrical, plumbing, joinery, plastering and all aspects building work Get in touch now for a quote
Keeping my costumers happy that’s what keeps us going !!
Alin from Home Improvements Specialist Ltd responded promptly and professionally to my insurance-related repair job. He arranged a viewing with the resident, kept me copied on all communications, and delivered a compliant PDF quotation without delay. Though the claim is still under review, I intend to award him the job once approved. Highly recommend for his reliability and attention to detail.
Hi im Joe, a general maintenance man from J.A Maintenance. Im qualified and competent in many roles including electrical installation, tiling, brickwork, gardening and lanscaping and all aspects of home/property maintenance.
Joe was professional and treated our home with respect, we are very happy with the outcome of the work and pleased with the outcome, would recommend Joe to anyone who needs assistance.
Rocco Developments Quality and satisfaction guaranteed - All aspects of our building and joinery work undertaken are carried out by time served qualified tradesmen, are guaranteed and are of the highest quality.
The guys at Rocco Developments were brilliant! So so happy with our new floor! They're a lovely bunch of guys and know what they're doing. Very happy with the service from beginning to end. Highly recommend
We are a family run buisness who are happy to help no job to small or to big
Richard was cheerful and diligent during the job. He arrived on time with an assistant and completed the job in the two days that he had quoted.
Akoni is a building company who can provide you with peace of mind and satisfaction. Our primary aim is to make sure our clients are respected and listened too with what they want to achieve. Over 20 years experience previously known as Aquafix which was predominantly bathrooms and heating systems. We branched out into our own developments and renovations. We now cover all trades and can supply you with the best results. All trades are fully qualified with years and years of experience. We aim to work closely with our clients from start to finish and use some great designers, architects, and structural engineers to help the process easy and take the stress away from you.
I recently had Akoni Construction come out to decommission a water tank in our loft and replace our hot water cylinder, converting our heating to an unvented system. Dan and Marlan were excellent, they managed to fit us in quickly, and the quality of their workmanship has been outstanding. Nothing was too much trouble, and they went above and beyond to make sure everything was perfect. We’re already working with the Akoni team on our next project, and they’re definitely contacts that will stay in my phone
I am a independent Plumbing and heating Engineer, I have been in the field for around 8 years. I take my work seriously and take pride in my work, and want to be of best service to each customer I meet. thanks wayne
Excellent service!
Calling via the Rated People phone link button is the best way to make contact for a same day reply and lowest prices, call during November for a 25% discount on all quotes, offer ends November 30th If I miss your call, leave a message or text and I'll call you back on the same day Quotes can be given via pictures, and all payments can be made via bank transfer upon completion of all works. With over 25 years’ experience in the plastering, building trade and 10+ years of Rated People positive feedback, I provide a first-class service, including damp proofing, soundproofing and complete bathroom/kitchen and home renovations from start to finish
Excellent work from Sean who shines 5 ceilings for us. Lovely finish and very clean work.
Specialist in all aspects of Groundworks/civils. Well established business with over 50 years combined experience with groundworks, civils and building. We own and operate our own machines and equipment. All operators are NPORS/CPCS ticketed and trained to high standards, this enables us to be properly insured and have correct health and safety in place.
Great to deal with, very knowledgeable and did a cracking job. Highly recommended - will use again for sure if I need anything else doing.
We are a family owned business that has been successfully running since 1972. All our work is of the very highest standard. We offer a full 25 year guarantee at very competitive price. You read more about us at Ark roofing Derby.
Good reliable tradesman good team of lads
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.
Richard and his team did a great job of replacing our garden gazebo roof. Pete and the lads who worked at the property were professional and courteous throughout and I’d have no hesitation in recommending them.
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles


















