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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:
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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.
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Profesional service.. To many years to mention in business. And all work carried out 100% satisfaction guaranteed.
Excellent work and service, would certainly use again. Bill Walker
I have been established for 13 years and cover all aspects of building. We specialise in extensions from footings to completion. We have extensive experience in structural steel work and jobs that are potentially difficult due to limited space. We have completed work for new customers to view and by contacting us we can arrange the nearest job for you to view. We cover all of Essex and are also happy to travel to London and Kent.
Graham and his lads were great. Would highly recommend for your building works. Was always open book about costs and plan of action, spoke on the phone regularly and was always easy to get hold of to give you that piece of mind. Full kitchen extension 5m x 3m from start to finish. Trusted with access to the property and never had any issues.
CH constServices takes great pride in the work we do and the competitive prices we offer. We are always aiming to make sure our customers are satisfied and that they return to us. We are fully guaranteed on any job we do and willing to work any size job.
Very pleased with the finished results of our flat renovation.
Was very pleased with AtoZ. Paul was there on time as discussed and was able to get things done ontime, on the same day. Very pleased with his work and would recommend him to other people.
Hi My name is Conor and i am a member of the chartered institute of builders which is the highest accolade achievable within the industry, I also have an nvq 6 in construction which is the equivalent to a masters degree. We are a well established company since 1999 and have a vast experience in painting and decorating, kitchen fitting, bathroom fitting and building refurbishment, roofing, listed building refurbishment, reactive maintenance loft conversions and extensions. We guarantee you the utmost service as can be verified by our previous clients testimonials We offer a one point of call for all trades for domestic and commercial customers .We previously completed painting/decorating , kitchen fitting , bathroom fitting and refurbishment works to listed buildings, schools, Universities ,hotels, restaurants , pubs, Hospitals, shops, nursing homes along with many prestigious new builds, bcp contracts and private works. We provide a 1 point of contact, complete service with all our other trades if required. Resulting in the client only having to deal with one person, who project manages the team throughout the course of the works. We also provide a kitchen/bathroom fitting service ,and a reactive maintenance package for landlords and commercial customers and have a vast portfolio having completed over 500 projects.
Emerald Builders removed old carport roof & replaced with new. Courteous & competent staff, left tidy site & did a grand job extending the life of the car port, thank you.
We are a family firm and have been established for forty years. All aspects of building, all your needs under one roof. Free estimates and a very friendly service
Absolutely perfect job, discussed, what need to be done, brain stormed, best way to do job, floating floor best option, discussed price, booked job, for 3 weeks later. Very professional, good price, did job, cleaned away rubbish, absolutely perfect experience
We offer a full and comprehensive range of residential and commercial building services like bathrooms, kitchen,patios,loft conversion,extensions ,internal and external building work.More than 20 years of experience and highly quality construction
Excellent, from start to finish. Very professional. Cesar and his partner were excellent in their work. I'm giving them 100% Feedback and will be keeping their number.
started buisness in 2008 after 24 years employed on site for 3 construction companies we specialise in extensions new builds loft conversions garage conversions refurbs and renovations timber frames all building trades in house from groundworks to finished product ,city and guilds qualified citb registered your one stop company
Exceptional service - clean and quality job at a very competitive price. I totally recommend these guys.
Greetings we are the soul of WELLSELEC, the last 12 years we have been installing designing and running jobs to the satisfaction of my clients on this basis 'people don't care how much you know until they know how much you care'
Very pleased with all the work done, good communication and the end result was exactly what I wanted to achieve. I would use Matt again, very honest, works hard and has a good attitude towards your project. Big thanks again.
i have been a self employed builder since 1997 i have one employed labourer but i am able to get all trades as i do extentions, my main work is roofing but am also a good general builder, i am based in stockport but have worked all around greater manchester
P.A.S plastering pride ourselves on Quality and customer satisfaction . Also accredited plasterers by British Gypsum . With over 30 years experience we aim to give our clients the complete professional job. We cover all aspect of plastering also K rend / monacouche coloured renders
Absolutely fantastic. No problems and did a fantastic job.
Hi I have been in the building trade for over 25 years I have run my own business for 15 years I am very honest and totally reliable as my rating will prove .
The gentleman that came worked really hard to get it finished. He made a good job of it despite the poor instructors. So grateful for what he did.
A small local firm able to react to customers requirements for small to medium size works of any type.
Great service and communication from the very start. Very experienced builder, and did an excellent job, Thank you Ken and Anthony, I have no hesitations about using you again.
We are a family-owned specialist craftsmen firm with many years experience looking after homes and properties; Design, Build, Improving, Renovating and Maintaining.
I highly recommend this company. Russ was very flexible and easy to work with, provided very high quality work at a rapid pace with the final invoice being exactly what we were quoted whilst working to a tight budget. Highly recommend for anyone wanting quality work done with ease.
"I have gained a reputation for quality and service to the highest standards. My main objectives are always to achieve client satisfaction within time constraints and budget whilst retaining a personal service" Anthony Honey
This summer Anthony to carried out some much needed repair works to our house. We found Anthony to be a very polite, dedicated, professional, knowledgeable, and enthusiastic builder. I can not praise Anthony enough for his commitment to the job, he was a pleasure to work with and I would most definitely employ Anthony again and would thoroughly recommend him to anyone seeking the service of a general builder.
I’ve been plastering for 35 years with vast experience in all aspects of traditional plastering
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.
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
Great guy,he knew exactly what the problem was, completed the whole job in one visit.
30 years of practice in construction. Building education
An excellent job, professionally and tidily completed. Would recommend him to anyone.
Davall construction have vast experience in all areas of construction and building maintenance. we deliver a quality service every time , with customer focus from concept to completion
Good price and completed the job quickly to good quality. Highly recommended.
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