• iStock-182177971-scaled.jpg?w=1024&h=683&scale
  • swanky-basement-bar-commercial.jpg?w=1024&h=876&scale


Converting or excavating basements, especially in the London area, can add huge value to your business in terms of increasing floor or storage space. Basements can have a number of uses in the commercial world with car parking, bars, restaurants, night clubs, swimming pools and offices being some of our more popular requests.


We welcome briefs from commercial clients and will work with you to tailor-make a solution that encompasses all your requirements. We will assign you a project manager who will take you through every step of the process while managing our specialist teams of designers, planners, structural engineers and builders.


Our experience in basement construction means that we use the latest tanking systems, which can come with a 20-year warranty, and all of our work can be covered by a 10-year insurance backed guarantee (if required). We always carry out our work while adhering to strict safety standards, so whether that includes extra reinforcements to existing basements, changing floor heights or lining walls, you can rest assured that our work will be fully compliant with health and safety regulations.


In addition, we work to strict JCT contracts so that every element of the build is accounted for and completed on schedule. Our teams understand the importance of keeping a clean and tidy site and work with neighbouring properties and businesses to ensure that work is carried out smoothly and with minimum disruption.


Underground restaurants are the venue for diners who prefer a more exclusive, Bohemian experience. With a nod to drinking dens and VIP clubs, basement restaurants give diners a private space that’s intimate and personal. When planning an underground restaurant there’s a lot to consider, but we have many years of experience in planning, designing and building commercial basement restaurants.

We understand how to create a welcoming entrance, how to keep areas ventilated yet heated comfortably, how to light spaces to create the right atmosphere, and how to plan kitchen and dining areas that work in harmony with the space available.

Get in touch about your requirements
  • iStock-155143046-scaled.jpg?w=1024&h=683&scale

    I under-estimated how useful a basement conversion would be

    I under-estimated how useful a basement conversion would be – it’s the one room that we now use most in the house. I’d definitely recommend Cool Basements to any of my clients and contacts.

    Adam Pearson

  • living-room-style-basement.jpg?w=1024&h=683&scale

    The team was very flexible, responsive and provided us with some great advice during the design and planning permission process

    James Little was extremely good at working with architects, building engineers and the Council. We were also impressed with the meticulous attention to the building and engineering requirements while being imaginative at maximising the aesthetics of the building.

    Solomon Soquar

  • Ringmer-Avenue-Fulham-2.jpg?w=1024&h=1024&scale

    James, Peter and the team are a highly knowledgeable, competent and professional outfit

    They kept us fully informed as our project evolved and worked collaboratively with us to resolve unforeseen problems. As busy professionals, we simply left them to get on with it, which they did. The team were always punctual, reliable, tidy and friendly which certainly helped with neighbours. We’re delighted with our end result and finish, and would certainly hire them again.

    Sonia Gogna

  • Prebend-Gardens-Chiswick-2-1-scaled.jpg?w=1024&h=768&scale

    James, Peter and their team were both professional and accommodating, nothing was too much trouble

    We are delighted with our new basement and very pleased with the work carried out by Cool Basements. James, Peter and their team were both professional and accommodating, nothing was too much trouble. Everyone who worked on the project were courteous and friendly and had a great attitude, I very much enjoyed working with them and was made to feel part of the team! James did an excellent job making sure that everything came together to create a wonderful finished new space. I would highly recommend to others.

    Mr Hudson