Subterranean Construction and Basement Conversion
The potential for basement conversion and subterranean extensions is almost limitless, and Klimstar has delivered many of these projects in London and across the home counties, including Kent, Hertfordshire and Surrey.
As well as regular rooms and home offices, we can create extensive leisure and entertainment spaces in prime and super-prime properties. For example, a spa, gym, playroom, games room or home cinema, not to mention a swimming pool. Underground and basement lift garages are also a useful option, particularly in confined urban areas.
Peace of mind
As with all our projects, everything is covered by our guarantee and comprehensive insurance, and we also provide a 15 year waterproofing guarantee on any basemen or subterranean installation.
What clients say about our subterranean construction
We used Klimstar for the complete refurbishment of a large Victorian house, including digging a full basement under the house. We had bought a completely derelict house and it needed a lot of work to transform it into our dream family home. This was a huge project in which we invested all our energy and savings. Hiring Damian and his team for this key project was probably one of the best decisions of our life! When it comes to a project of this size, you want a builder who understands what you want the first time round and whom you can fully trust. This is exactly what we found in Klimstar. Damian and his team are a delight to deal with, understand what you want and work to incredibly high standards to deliver it within budget and the agreed timeframe. We had done smaller projects with other firms before coming across Klimstar and we therefore know that Klimstar is a world apart from your average builder. We cannot recommend Damian and his team enough! In fact we have now recommended Klimstar to several of our friends and everyone is equally delighted with their services. Do not hesitate!
JC Rey, Hampstead
Find out more
Whether you’re an architect, developer or private client, we welcome approaches to discuss all that’s possible with your basement or subterranean project. Please get in touch for an informal no-obligation discussion and quote.


























