About Us

Cellar Conversions, Basement Construction and Waterproofing Systems around London and Surrey

Surrey & London Basement Company Ltd on site safety sign and hoarding

Surrey & London Basement Company Ltd comprises a group of experts, with a wealth of experience in commercial and domestic electrical installation, structural waterproofing, chartered and remedial surveying, joinery and general building, who decided a specialist company would meet increasing market demands to offer the complete package focusing on Basement and Loft conversions - but handles Everything in between! Including cellar conversions, basement construction and waterproofing systems around the areas of London and Surrey.

There was and is a growing demand, particularly in London, for new build basements, retro fit basements, basement construction and cellar conversions, and the ultimate goal is to produce a dry basement.� Once a basement is dry it can be made into a great living space. The good news is modern building techniques allow complex dig outs, underpinning or simple basement conversions to complete in shorter time spans and cost relatively little compared to the benefits and increases in property value.

With over 30 years of experience in domestic and commercial construction � basement constructions, refurbishments, extensions, electrical installations, waterproofing systems & tanking � we will be happy to advise you and prepare a full project plan to meet your needs. Please use the form on the right to make contact.


We provide our Cellar Conversions, Basement Construction and Waterproofing Systems installation services around the whole of London and Surrey, as well as many areas across the south east of England. We are based in Surrey with offices in Wandsworth, Bromley and Reigate.� We have serviced contracts in a range of sizes and applications in Hampstead Heath, Maida Vale, St John's Wood, Notting Hill, Kensington and many other areas all over London.� In Surrey, we predominantly work in Reigate, Dorking, Sutton, Redhill, Caterham and Guildford but consider all outlying areas. To meet our expanding workload, we have based specialists throughout the South East, so please contact us to see if we can help in your area.

Surrey & London Basement Company Ltd basement conversion specialist van


We keep abreast of new developments and satisfy the audit procedures on technical competence, quality control and health and safety compliance, required by insurers, local authorities, government and housing associations.

We are fully covered for all and any eventuality, with insurance backed guarantees, product guarantees and professional indemnity for  design work and engineering which we carry out in house. We are PCA "Property Care Association" members and Trust Marked by the Government.  We welcome regular monitoring to ensure for our clients that we are consistently delivering the highest standards on each and every project we take on.

We have built good relationships in all areas of domestic and commercial work. We are proud of our reputation and receive most of our contracts from personal recommendation. Please use the form on the right to make contact.

Single Point of Contact

We believe that providing a single point of contact and good project management produces the best results. We pride ourselves in the quality of our workmanship and our attention to detail, from the moment we first visit your home or site, on-job and beyond.

As a business we are fortunate to be growing and busy in all aspects of construction, basement conversion and below ground tanking.  However, we believe in retaining that ‘small company’ attention to detail and personal service, so that our clients continue to return to us time and again.

Particularly in the domestic environment, we are sensitive to the emotions as well as the requirements of our clients. Water ingress and damp are distressing. Construction works are disruptive. We want to make the experience as painless as possible for our clients and return you to normality as quickly as possible.

No Job Too Small

No job is too small! Whether it is a cellar to convert for dry basement storage, a conservatory into a home extension, or the construction of a basement beneath your house with cinema and swimming pool; we can boast many ‘Grand Designs’ but are equally proud of the smallest garden shed!

"If it’s construction and it can be done, then we should be the ones to do it" -- Gary Brooks (Site Manager)