www.obsbasements.co.uk | 07594 954 319 | sales@obsbasements.co.uk

Basement Conversions London, A basement construction company in London

We Offer Bespoke Basement Conversions in London


Space is at a premium in London and basement  construction is on the rise. Many districts in London forbid extending a property upwards, but allow extending it downwards via the basement. Because of this we have seen a huge increase in basement excavations and have over 10 years experience in the field.

We can see the entire process through, including planning applications, design and the actual build. Take the stress out of your cellar conversion and contact our basement company today.


OBS Basements, based in London, offer all the necessary services required in basement conversions.

We are basement specialists working on basement conversions in Mayfair, Chelsea, Knightsbridge, Fulham, Wandsworth. In addition we are presently negotiation conversions in other areas of London. Chelsea, Knightsbridge, Fulham, Mayfair.

“Our services cover the design and conversion of existing basements together with the construction of new basements.” We are an all-in-one solution to your basement dreams.” “Basements are frequently damp and therefore tanking/waterproofing are often required. In such instances, we offer full insurance cover.” “To date we have created basements varying from small to large, and in some cases, new extensions”. We also undertake concrete piling work, please see our piling contractors page for more info. For basement contractors in the London area please call or email us.

“We have an experienced team, all with the requisite qualifications. The client will be involved from initial sketch to design stage and then through to physical completion. Where required, our basement specialists team will work hand in hand with the clients appointed chartered surveyor.”

We now have a team of basement and tanking specialists in Brighton.


“The work of converting a basement is not for the faint-hearted.
Dealing with an experienced and reputable company is essential. Customer relations are a high priority at all times. We undertake at all times to be fully compliant with the construction industry regulations and ethics.

“A lot of our work comes from recommendations by satisfied customers. References can be provided from architects, structural engineers and previous clients. In addition, we invite you to take up references with the various Local Authorities we have worked with.”

“The initial specification for the work is agreed with the client in advance. You may want to take on responsibility for the internal decoration, final fit-out etc. We do not sub-let any of our work to sub-contractors, with the exception of electricians and plumbers.”

Basements With Class With a wealth of experience throughout London we offer a complete solution in planning and constructing high quality basement systems. From additional bedrooms and kitchens, to swimming pools and cinemas; there are no limitations on what you can create with a basement.


Any job of this nature can lead to in-trepidation, are we with the correct company? This is a lot of money can we trust this business? You can rest assured that OBS Basements are the correct company for you. With over 10 years experience we have references from numerous existing and previous clients who will put your mind at ease. We will go that extra mile to make sure there are no stones unturned and that , above all, you the customer are extremely happy with every aspect of the job from start to finish. It is in our ethos to make sure you are happy with the outlay of the work, price and service before we agree on any deal.

Check out our facebook page here, and we provide a 10 year insurance back guarantee with the waterproofing system.
We would like to suggest this company for home removals Crawley