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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
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.
At The Ruby Team we value great work and our word. Reliable, trustworthy and punctual tradesmen is what we are. With fantastic quality of work and enthusiasm we really get the job done to a 5* level. With 7 years in the field as a multi-tradesman I’ve accumulated a lot of knowledge in many sectors. No job is too small nor too big for us and we cover all areas in London and Essex. We follow a CLAYGO service which is a protocol we follow to ensure your house is as clean as when we entered it. #Residential. #Commercial. #Landscaping.
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Hello Rated People I would like to take this chance to formally introduce Ryals.PMS a small local company with a big appetite for all your projects or property servicing needs were small enough to care and big enough to cope with a combined trade experience of over 40 years you know your property or projects big or small are in the safest hands, we cover most of kent and South London Thank you and we hope to see you soon The Ryals Team
STAY well away from this company. Quoted to fit stair carpet and stair rods. Arrived late and Ryan started to cut the stair rods. Ryan stayed for 3 hours then just walked out with no warning and never came back. I then found out that he cut 8 of the stair rods incorrectly. I advised him of this and he said he would replace. After not responding to my texts I can assume he is not replacing them which has now left me £88.00 out of pocket to replace. Be warned .
Sky House Construction Limited
Cellar & Basement Conversion
At the heart of our success lies our CEO & Founder, Spyros. A true visionary, Spyros has successfully brought together a team of passionate professionals, all united by a shared vision for SkyHouse's bright future. His relentless pursuit of perfection and enthusiasm for tackling challenges drive our company forward. Spyros’s leadership and innovative mindset ensure that SkyHouse continues to set new standards in the industry, consistently delivering excellence in every project. Our guiding principle, “The Sky’s the Limit,” embodies our dedication to realizing the utmost potential of your home. We recognize that your dream house is a unique manifestation of your values, and we channel all our efforts into making your vision a reality. At Sky House, this philosophy permeates every aspect of our operations, from our business practices to our daily lives. We strive for excellence in every project, ensuring that each home we build is a testament to our unwavering commitment to quality, innovation, and customer satisfaction. We believe that the cornerstone of a successful construction project lies in understanding and embracing the individual aspirations of our clients. By fostering a collaborative and transparent approach, we ensure that every detail of your dream home is meticulously crafted to meet and surpass your expectations. At Sky House, we don't just build houses; we create homes that reflect your unique identity and values. With Sky House, you can be confident that your project is in the hands of experts who are as invested in your dream as you are. We are dedicated to pushing the boundaries of what is possible, delivering exceptional results that elevate the standard of modern construction. Trust us to bring your vision to life, because at Sky House, the sky truly is the limit.
Serious and hard working. Since 1998 in EU and from 2010 in UK . "Work smart not hard" .
Absolutely brilliant. He was very professional did a fantastic job. I would 100% recommend
When it comes to property building works you need a name you can trust. Based in Colchester area, with over 30 years experience. Some of the projects we have successfully carried include: - New Builds - Renovations - Extensions - Garden designs - Patios - Block paving - Tarmac - Fencing. Our experienced team of specialists pay great attention to detail, finishing all projects to the highest of standards. We are fully insured and all our work is guaranteed. For a free quote simply get in touch with our professional team today.
J.S Carpentry
Cellar & Basement Conversion
local Carpentry and General building company
We are a family run and working business. Established over 30 years who pride ourselves on reliable and clean quality work. We are a sovereign approved contractor, an HM appointed PCA company. Specialists in Basement &Cellar Tanking Membrane/ Woodworm/Mould Control /Radon Gas / Thermal insulation/Rising Damp.We supply GPI insurance backed guarantees backed by National Warranties Qanw.
Paul and his team were fantastic. My wife and I have always been a bit apprehensive about having people in our house when we are out, but we had no worries with Paul and his team. They were very hard working, reliable and trust worthy. I would absolutely use them again as the quality of what they have done is outstanding. They take pride in their work and it shows as they always made sure they cleared up at the end of each day. Thanks guys, the basement looks incredible.
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
AE Carpentry
Cellar & Basement Conversion
AE carpentry work to provide the best of the best for our clients, we take pride in our eye for detail and our friendly service.
Y BOKA
Cellar & Basement Conversion
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.
Home Pro
Cellar & Basement Conversion
Local Home Improvement company taking on all aspects of building work from roof repairs to full property refurbishments. Our team of qualified experts provide you with a no fuss experience from your first consultation through to completion. Of you are looking for a value for money first class experience, we are the team for you.
Quality Building. Exceptional Standards. With extensive experience in the construction industry, Pinestone Builders provides high-quality building and property services throughout Bristol and the surrounding areas. We specialise in extensions, renovations, conversions, structural alterations and complete building projects, delivering workmanship that combines quality materials, attention to detail and professional project management. From carefully planned home extensions and contemporary renovations to structural works and complete property transformations, we take pride in delivering projects to a high standard from start to finish. Our Services * Single-storey and double-storey extensions * Home renovations and refurbishments * Loft and property conversions * Kitchen and bathroom projects * Structural alterations and steelwork * Brickwork and masonry * Roofing and associated building works * Property alterations and improvements * Complete building projects We work closely with our clients throughout every stage of a project, providing clear communication, professional advice and a reliable service. Where specialist work is required, we work alongside appropriately qualified trades and trusted professionals to ensure every aspect of the project is completed to the required standard.
Reliable, honest and communicates well. Kevin has built a garage and single storey kitchen extension for a reasonable price. I hope to use him for other work 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.
SUSSEX CARPENTRY & CONSTRUCTION LTD
Cellar & Basement Conversion
At Sussex Carpentry & Construction, we pride ourselves on our excellent customer care and outstanding results. This is all thanks to our professional and dedicated team who have both knowledge and experience. Our team are friendly, reliable and most of all work to the highest levels of customer satisfaction. We are a local, affordable and recommended company who would be happy to provide a quote.
D Maintenance
Cellar & Basement Conversion
Hi my names sean. I am a time served joiner with 12 years experience rently started out on my self i do al kinds of joinery work Flooring Doors skirting arcatrave Paneling anything just ask
RM Roofing & Building Services
Cellar & Basement Conversion
Rm roofing & building services is a family run business with over 35 years experience in all aspects of roofing and building services all of our work is fully insured all of our tradesman are fully qualified
Hi we r family run business with over 20 years experience in the building game we carry out all types of building work from new builds to extensions two full ? refurbishment all types of groundwork ?drives ways patios jet washing painting all types of of construction fully in insured highly experienced company look forward to hearing from you
Honest reliable and hard working man. Very pleased with the results. Price quoted for unseen work involved was fantastic. Would recommend and definately hire again. One very happy customer
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