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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.
I primarily work on all aspects of kitchen and bathroom fitting from fitting to services. However I have a long history of multi-trade work having completed high spec extensions throughout the years, no job is too small. I carry out property maintenance which involve carpentry plumbing and electrics as well as refurbishments all within the latest regulations.
Pleasant polite tidy, carried out work quickly and efficiently
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Fully qualified carpenter/joiner for over 25 years. DBS checked. Full public liability insurance held.
Craig is the consumate professional - his work is excellent, he has a can do approach and he is always ready to give advice and guidance on how your ideas can be improved. Really enjoyed working with him and fully recommend him for all your carpentry, kitchen and building needs.
Touchstone (Surrey) LTD
Cellar & Basement Conversion
At Touchstone (Surrey) Ltd, we are a trusted and established building company backed by over 20 years of industry experience. Formed in 2019, our team is made up of highly skilled tradesmen who take pride in delivering top-quality workmanship across every project, big or small. We are proud members of the Federation of Master Builders (FMB), a mark of excellence that reflects our commitment to high standards, reliability, and customer satisfaction. Whether you're planning a home renovation, extension, or a new patio, we offer fair, transparent, and competitive pricing—with no compromise on quality. Why Choose Us? - 20+ years of hands-on experience - Fully qualified and trusted professionals - FMB-accredited for your peace of mind - Reliable, clean, and respectful service - Honest quotes and competitive rates - Projects delivered on time and on budget We understand how important your home is, which is why we treat every job with care, attention to detail, and professionalism. Your vision is our priority. Get in touch today for a free quote or friendly advice—we're here to help bring your ideas to life.
MJM PRO CONSTRUCTION LTD
Cellar & Basement Conversion
At MJM PRO CONSTRUCTION LTD we are passionate about building beautiful, functional spaces that exceed our clients’ expectations. With years of collective experience in the construction industry, we have the knowledge and expertise to take on any project, big or small. Our team of highly-skilled builders work to ensure that every project is completed on time, within budget, and to the highest standards. We take great pride in our craftsmanship and attention to detail, and we are committed to using only the highest-quality materials and the latest building techniques. We specialise in new builds, extension, loft conversions, refurbishment, patios and driveways and all works carried out to the highest standards and at competitive prices. We take great pride in all our projects and have many happy clients. We can maximise the potential of your home by adding square meterage by adding on extensions and loft conversions all tailor made to fit your needs. If you’re looking for a construction company that is reliable, professional, and committed to quality, look no further than MJM PRO CONSTRUCTION LTD. Turning your construction dreams into reality.
Excellent time served Plasterer with 16 years building experience all over the UK .No job to small and always to highest standard possible. Experienced with:Skimming,Boarding,Damp proofing, wall removal (Steel work), extensions, Rendering, roofing, tiling, bathroom fitting Coving,brickwork , joinery. All work is guaranteed . Give us a call for your free quotation
Brilliant job! Shaun and his team were very punctual arriving early doors and worked non-stop. Did everything we asked for to a very high standard nothing was a bother. Lovely group of lads who we'd highly recommend! Thank you!
Well established family run building company based in London,we have built a strong relationships with well known building societies across the London due to our quality and trustworthy service High quality levels of work in major building projects,we specialise in planning and design,project management and general building services
5 star
A&K CONTRACTOR ARE SPECIALISTS IN ALL TYPES OF BATHROOMS AND HOUSE REFURBISHMENTS. IT GIVES CUSTOMERS PEACE OF MIND TO KNOW THEY CAN DEAL WITH A COMPANY WHO CAN RELAYED FROM THE START TO FINISH THEIR PROJECT! OUR ATTENTION IS FOCUSED ON DELIVERING A FRIENDLY SERVICE WITH HIGH QUALITY WORK FOR EVERY CUSTOMER ,WHILE AT THE SAME TIME OFFERING GOOD VALUE FOR MONEY. OUR ETHOS IS; -PROFESSIONAL PREPARATION -MAINTAINING AND CLEAN AND TIDY ENVIROMENT -HIGH STANDARD FINISH -POLITE AND PUNCTUAL -REALIABILITY -GREAT VALUE FOR MONEY.
Fast, efficient job properly done. Will hire this company in the future
For over three decades, Millington Construction has been a trusted, family-run business dedicated to turning customer ideas into reality, consistently delivering within budget and on schedule. Whether you envision an extension or require maintenance, our comprehensive expertise in the construction industry ensures all aspects of your project are covered. Comprising a skilled team of 12 professionals, each member brings a wealth of expertise and dedication to every project. Our Services: Extensions: From single-storey to multi-storey extensions, our experienced team of builders skillfully executes diverse projects tailored to meet your specific requirements. Maintenance: Trust us for meticulous maintenance services designed to keep your property in prime condition. Our Approach: At Millington Construction, we firmly believe in the strength of our team. Our highly knowledgeable tradespeople are passionate about transforming customer ideas and dreams into tangible results. They are supported by our design and structural engineering partners, enabling us to confidently undertake projects of any size. Why Choose Us? 1. Pride in Craftsmanship: We take immense pride in our work, ensuring attention to detail in every job we undertake. 2. Driven Workforce: Our team is motivated and committed to delivering excellence, ensuring your project's success. 3. Customer Satisfaction: Your happiness is our priority; we strive to exceed your expectations at every stage of the project. 4. Certified for Security: We prioritize safety and security, ensuring that our work meets certified standards.
Quick to respond to job request, all work done efficiently and professionally. Have already requested millington construction projects Ltd to return and do another flat roof
With over a decade of hands-on experience delivering premium homes fit-outs, I specialize in transforming spaces into elegant, functional sanctuaries tailored to the highest standards of design and craftsmanship. Over the past 10 years, I’ve led and completed a wide range of bespoke refurbished projects in some of the most prestigious residential and commercial properties across [your region or city]. My work blends precision installation with an eye for detail, using only the finest materials and working closely with architects, interior designers, and clients to ensure a flawless finish every time. From custom stonework and high-spec tiling to smart tech integrations and luxury fixtures, every element is carefully executed to create a space that reflects sophistication and comfort. Core Strengths: •Luxury homes installation & project management •In-depth knowledge of high-end brands & materials •Seamless integration of lighting, underfloor heating & smart controls •Stone, marble, and bespoke tile craftsmanship •Collaborative approach with design and build teams •Discreet, clean, and reliable workmanship in occupied homes Whether it’s a minimalist modern spa or a timeless classic retreat, I bring each vision to life with unmatched attention to detail and pride in the final result.
Brilliant service, arived on time and carried out the job in very quick time. Cleaned up after job compleet. Very happy to recomend.
UWB are a small family run business with over 30 years of experience in the building & window & conservatory industry, our services include extentions & new build plus all aspects of alteration work with all associated trades included. Planing, drawings & Building Regs plus steel calcs are all covered by our team to take the pressure of our customers. Windows, Doors, Conservatories, Orangeries WarmRoofs included & are all covered by building control.
Excellent service, very professional, highly recommend
Explore the comprehensive services offered by CDL Building & Carpentry Ltd in the Swansea and south wales areas, we cover all aspects of building and carpentry jobs including comercial and domestic. Some of the job we do are: Extensions Conservatories Loft conversions Kitchens Bathrooms Tiling Garden walls Windows & doors Roofs Repointing Fascias Guttering Flooring Patios Driveways Paving Decking & fencing Plastering All interior carpentry Lime rendering Lime pointing Sand/shoot blasting Fiberglass roofing Fencing New build home / self builds Damp Proofing Complete office refurbishments Complete shop fitting Insurance repair work CDL Building & Carpentry Ltd delivers excellence in every project. Contact us to turn your vision into reality with our professional and reliable services.
Craig and his team (Carne, Jason and the carpenters) were excellent. They were friendly, hard-working and tidy. They coped with unforeseen issues very competently. The communication between trades and with ourselves was very good. We have no hesitation in recommending them and will use them again.
We do all aspects of building work Roofing, patios, driveway, decking, painting, electrical and more
Reliable, friendly, am really pleased with the work they did. Would definitely recommend.
Fabricating,Welding,Install:Security Grill Gates,Railing,Automatic gate,Staircase's,Collapsible,Window,Balustrade,Structural STEEL,Beems,Alloy Wheels,Exhaustes,lowering,welding:ARC,MIG,TIG,GAS,STAIN LEES STEEL,LED:Basic Plumbing+Painting+Powder Coting,Galvanise+...
Hired Amir to retrofit a Locinox soft closer on my gate, which turned out really well. The job was complicated but Amir took his time to understand what I wanted and finished the job to my satisfaction, thank you.
RAR offer a full hard landscaping, groundwork and building service, including but not restricted too, ~ Patios ~ Paths ~ Drive ways ~ Fencing ~ Turf ~ Bespoke timber structures ~ Sleeper work ~ Ponds ~ Small and medium sized building jobs ~ Garden clearance Specialising in low maintenance gardens. with over 20yrs experience in these sectors I offer high quality and am happy to chat through what is required.
We are a Derbyshire based building company who work to very high standards and expectations all our staff and sub contractors are time served professional people Monument castle has been trading since 2009 and have built up great relationships with trades and suppliers during this time , We undertake all types of building works from extension to new build homes to commercial works
Really impressed with the work completed by Scott and Jody, really high quality work and finished on the dates agreed
We are proud to be a top rated, reliable and well respected company with a fantastic team of experts providing outstanding levels of service when it comes to plumbing painting tiling bathroom and kitchen fitting and full house renovations in London and surrounding areas. We carry out all types of work, no matter the size - from small plumbing maintenance jobs such as leaking taps or burst pipes and other domestic work, right up to large installations such as Full house renovation. All of our work is fully guaranteed and we offer professional and efficient Handyman services near you at a competitive cost. Our aim is total customer satisfaction. Not only do we retain our client's custom over many years, they also become our ambassadors recommending us to their relatives, friends, neighbours and business associates.
Beware of these people – they do not honour their work! It cost me £1000 for a grey water pump plus over £500 installation cost (connect three wires and two pipes) to install a replacement pump for the one that has been working fine for a number of years until they touched it. The new pump extract water at 20 L a minute the old pump was 11 L perm. Because the water level buildup in the shower when the overhead and handheld spray are on at the same time I am told I can’t do that. I have to turn one off!!
Page Developments undertake all aspects of building work, renovations and property maintenance across Cheshire.
Page Developments did a great job and really quickly
R&D CONSTRUCTION IS A PROFESSIONAL DESIGN AND BUILDING COMPANY SPECIALISING IN ARCHITECTURAL DESIGN AND PROJECT MANAGEMENT FOR RESIDENTIAL AND COMMERCIAL PROPERTIES, ALSO A WIDE RANGE OF CONSTRUCTION, DEVELOPMENTS AND REFURBISHMENTS. We Carry out all type of construction and to us no job is a small job and by that we mean we would be happy to take your various jobs in our hands. We provide the following list of the building services: New Build Property Refurbishment Loft Conversion House Extensions Flat Conversion Driveway & Patio Bricklaying & Re-pointing Kitchen & Bathroom Roofing & Guttering Plastering & Tiling Carpentry & Joinery Painting & Decorating Plumbing & Electrical Central Heating & Under Floor Heating Design We believe a great design is simple and not only how it feels or looks but also how it works. We provide Architectural and Interior Design and Engineering Services: Initial Concept Design Basic Drawings for Planning Application & Application Management Existing & Proposed Floor Plans, Elevations and Sections Site Plans and Block Plans (OS map/ Location Plan) Detailed Architectural Design 3D Concept and Visualisation Design Interior Furnishing, Materials & Fabrics Lighting Design Bills of Quantities (BOQ) 3D Interior Visualisation Design 3D Interior Visualisation Design Building Control package Drawings & Application Management
Mo did an amazing job unblocking my drains. The work involved changing all the pipe work including the outside pipes whilst there was torrential rain. He was professional and possessed expert knowledge about all sorts of household jobs. I found his prices were reasonable especially given that he worked solidly for five hours and resolved the problem that very same day.
Neil Chamberlain Property Services
Cellar & Basement Conversion
Neil Chamberlain Neil has over 30 years of experience in the construction industry, where he has gained a comprehensive level of knowledge and a thorough and in-depth understanding of most trades and skills. Neil commenced his career in construction as a sub-contractor building loft conversions, primarily in West London, and was awarded by The Federation of Master Builders for an exceptional conversion in Wimbledon. Neils recognised high standard of work has secured many diverse construction projects, including the substantial renovation of Period Houses, including listed buildings, single and double storey extensions, detached new build projects, an award winning Chelsea landscaping and garden design, as well as commercial buildings. Neil has worked as part of a team, as a main contractor and has also project managed all elements required in completing building projects large and small successfully. Property Service, (NPS) is a family owned and run business, bringing an extensive level of ability to benefit our clients projects. Whether you require property maintenance or are planning something more substantial our team will assess your requirements and put in place a tailored package for you, from an appropriately detailed quotation on smaller projects, to an all encompassing design and build service, including - planning, building control and a detailed costed schedule of works, we have the experience and background to meet your requirements.
If only all tradesmen were like Norman and his team. He turned up when he said he would and kept me in the loop with what he was planning to do and what his team were doing. His team is made up of friendly guys and they've done a great job!
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