Specialist basement/cellar conversions. From conception to completion. 30 years guarantees. Approved installers of the world leading manufacturers - Delta Membrane Systems. Unlike anyone else we know - we only do basement/cellar conversions. Over 25 years experience with a portfolio of very satisfied customers. We are a fully insured company. Call us now for a free survey and quotation or email our sales office at sales@thebasementcompany.co.uk we also provide insured guarantees against all of our work if required.