The London Conversion Company are a specialist London basement conversions company with 30 years experience in underpinning and basement construction. We offer full basement services for private clients across London, including basement design and basement planning, retrofit basement excavation, basement waterproofing, modified drainage solutions and basement fit out. Our experienced team are happy to work with your appointed architect or we can arrange for all basement design and basement planning on your behalf. Whatever your basement requirements, The London Conversion Company can provide you with the perfect London Basement solution. The London Conversion Company Ltd offer a full range of guaranteed services in connection with basement conversions in London such as loft conversions, extensions and property refurbishments. For a free, no obligation quotation or some free technical advise call us on 0800 433 2004.