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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
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.
ACCOMPLISHED PLASTERING AND BUILDING SERVICES. SPECIALISING IN BUILDINGS. LOFT CONVERSION. PATTEN CONCRETE. PLASTER RESTORATIONS. CELLAR TANKING.FOR BEAUTIFUL ROOMS. SOVEREIGN APPROVED DAMP PROOFING. EMERGENCE.ROOF.REPAIR. FULL PUBLIC LIABILITY INSURANCE
Clear communication detailed quote and did exactly what was asked,friendly and helpful towards my tenants,would use again and wouldn’t hesitate to recommend.
we provide reliable solutions to all your plastering and building needs. We are both fully qualified tradesmen, we pride our selfs on an outstanding service to every job we do,with competitive prices.
Fab job done. Whole team very helpful & courteous. Prompt and reliable & kept us informed at every stage. Left everything tidy at end of job. Would definitely recommend & would use this team again.
Local carpenter and general builder, competitive prices, all 5 star reviews and references.
Dan visited and gave me a quote for the job. He then turned up with Tom to help on the day and have to say they did a very tidy job of strimming the grass, raking it up and clearing. Chopped up a dead tree which had fallen onto the land into logs and stacked tidy. They did what I asked them to do and were polite and informative in letting me know when they could next be here. Decent guys!
With over 41 years' experience in creating high quality bespoke building projects, look no further than Turley Properties Ltd for all construction / Landscaping services for your property. * Call Us Now For A Free Quote
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 Gary has 17 we are here to provide a good service information and a very reasonable quote kind regards James
We are a company with over 15 years experience across UK and Europe.
I recently hired Viorel to replace a ceiling beam in my rental kitchen, and I was thoroughly impressed with his work and professionalism. Viorel demonstrated excellent craftsmanship when tackling what turned out to be a more complex job than initially expected. During the ceiling beam replacement, he uncovered several additional issues that needed attention. Rather than simply ignoring these problems or hitting me with surprise costs, he took the time to explain each issue clearly and kept me updated.
21 years experience in construction.Attention to details from the start of your project right through to the end
Punctual and efficient. Good job done
We have been trading for 18 years and specialize in painting, decorating, building work, full-scale refurbishment, bespoke wardrobes, kitchen installations, and high-end bathroom refurbishments.
fantastic work from very nice professional team - will employ again
Weardale Construction have been in business for over 16 years. Our main works include extensions, loft conversions, sun rooms and conservatories, We are a team of 8 covering all services without the need to sub contract out any works
So pleased with the work completed by Dave and his team. We hired them to build a single storey extension and couldn’t be happier with the result. Everything went smoothly with all work completed earlier than planned. All of the building work was completed to an exceptionally high standard, all without any issue or stress. Reliable, professional, a pleasure to work with.
At Weatherproof we aim to provide our services exclusively within the Edinburgh and surrounding areas. Qualified in offering energy efficient measures and all aspects of conservation management. Which Trusted Traders and proud members of the National Federation of Master Roofers as well as being able to offer insurance backed guarantees through the Government ApprovedTrust Mark Process. We work from Architect, Engineer drawings to ensure compliance. All our new work comes with a suppliers warranty and a guarantee from us on our Labour Work. We have been with Rated People for over 15 years now and have been trading since 2007. We are based in Edinburgh and our employees are the same tradesmen we have employed since we started. We are conscientious about our work and will always meet our customers' expectations as it is part of our beliefs and values. We fully insured for public and workers liability and have our own Health and Safety Policy.
Although not the cheapest quote, the work was done promptly, the staff were courteous and very hardworking, they tidied up as they went along, and snagging issues were dealt with. Communication was very good, either by text, email or in person. A further serious issue was discovered during the time they were here, and I will be using Weatherproof services again to deal with that.
SRG Renovations Ltd have built a reputation to be proud of, with our team of highly qualified tradesmen we can carry out any project you may have in mind weather it be a small job or a major renovation project all at a very competitive price.
Clean, high quality plasterers. positive attitude. Highly recommended.
Over 15 years in trade Fully qualified gold ECS CARD Managers black card ESC CARD Very honest and reasonable prices
Three arrangements to come, three different quotes, the third of which he refused to come for! Not recommended unless you are flexible, and within easy reach of Harlow.
I am a reliable and trustworthy person. I have very been running my company for the last 10 years.
Great work ethics from quote to completion- top notch.! Work done to a high standard. Friendly courteous gentlemen. I'm chuffed to bits. Will be keeping this company's number close to hand that's for sure!
Fully qualified Level 3 Site Joiner/Carpenter through City & Guilds, with many years in the trade. I bring extensive experience, strong knowledge, and genuine passion for delivering quality workmanship. Due to high demand from returning clients, CFL Joinery is steadily expanding to offer additional construction services, including electrical installation, plumbing & gas, bricklaying, and more. Whatever the job, we’re happy to help. I guarantee all work will be completed to a high standard, often at prices that beat previous quotes you may have received. We are a friendly, reliable and understanding business, and if a job needs urgent attention, we will do everything we can to accommodate it. For any questions or enquiries, please feel free to get in touch via call or email. ????
Dylan never turned up when agreed and stopped answering calls and texts from me
I have been involved in the construction industry for over thirty years covering a covering a wide range of projects from very small to large
Sean tiled my bathroom walls for a shower over the bath. Fantastic job! Friendly, hard working man.
We are an Electrical Installation company working across the North West. As a NAPIT registered approved installer, compliant with 18th Edition Wiring and Building Regulations we carry out all domestic electrical work such as rewires, new consumer units and new lighting/power circuits along with fault diagnosis and repair. As SMART Home Automation and security specialists, our work includes, Alarms, CCTV, Motion Sensor Lighting, SMART Thermostats, SMART Lighting, TV, Audio and Visual, Media Walls and Home or Business Networks. • EICR • Fault finding • Rewires • New circuits • Consumer Units • CCTV and Security Systems • Audio and Visual • Home or Business Networks • Media Walls • SMART Home automation • Home Improvement and Renovation projects Having over 25 years experience in the Electrical, Communications and Property Development sectors we pride ourselves on our commitment to providing quality service to each and every customer. Whatever the project we will provide a full and complete service from concept to completion, ensuring our customers are left with products and services that they are completely satisfied with. We operate in and around the Greater Manchester area and are based in Bolton. We are a family ran business and have a lot or repeat customers that are fully satisfied and assured with our quality workmanship. We will only use quality equipment and materials as we believe if a job needs doing, then it needs doing correctly. Give us a call or drop us an email to discuss your project or ideas and let us provide a quality service that you require.
All quotes/work completed on time as agreed. Very happy with finished work. Thanks
About Andrey's Property Services. Thank you for looking at our profile page here at Andrey's Property Services. We are a team of highly skilled multi-talented tradespeople and between us we can do pretty much all work required in your home to a very good standard. This can be confirmed by looking at our excellent reviews and pictures of our previous work. Some of the things that make us stand out from the rest - NO UPFRONT DEPOSITS We only ever ask for payment once the work is complete and you have had a chance to make sure you are totally happy with everything. WE DO EVERYTHING Why have multiple tradespeople or multiple companies working on the same job when we can manage the whole project start to finish and take responsibility and ownership for everything. REVIEWED & CHECKED We have been through numerous checks into our background by independent organisations including TrustATrader and others that you can find on our website Including criminal background checks, public liability insurance checks, necessary qualification checks. ALL WORK GUARANTEED At Andrey's we are so confident in the quality of our work that we offer a full one to ten year guarantee on any work we do, totally free of charge. This combined with our 1 million pound public liability insurance should give you full confidence in Andrey's Property Services.
Andrey has been in contact and is now going to rectify the problem and is re render in march 2026.
I am mature & experienced in many aspects of home improvements. Over 30 yrs plastering, carpentry, fitting kitchens, bathrooms & much more. From start to finish I am hard working, reliable, tidy & can adapt to different environments. Please see my ratings.
Couldn't pick a better tradesman to carry out any work we asked for. They did a brilliant job on two rooms for me, very respectful, efficient & hard working. Thank you so much. Colin
I have been in the trade for many years, (17 years) I have recently gone on my own, and my business is doing really well, I take pride in my work and it's what I enjoy doing. I always hit my targets and it's shown because my business is doing brilliant
Martin was quick to make contact with me and arrange a time to quote. He came to my house with his wife and they were able to give me really good advice and a quote on the spot which was appreciated. I didn't use Martin on this occasion more due to my own timings then anything else but would certainly look to contact him in the future for any other jobs required.
M & C Landscapings and Home Improvements is a business by a professional. with years of experience. Always looking for new designs and products for your garden and home needs. Whether you need garden maintenance, a new designed garden 100% satisfaction.
Work was done to perfection I am so happy with the decking polite and efficient service I would highly recommend
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