If you have a basement/cellar/vault that requires waterproofing, or a conversion we can help with this service. One of the benefits of using Complete Preservation is that we will carry out all of the work. This being the initial survey, and design of the waterproofing system, associated plastering, and joinery. We can also carry out all of the ventilation works, electrical work, and plumbing works, leaving you to choose the decoration. We prefer to carry out at least all of the building work and waterproofing this because there are no issues of split responsibility, if some kind of failure occurs. All of our below ground waterproofing work can have an Insurance Backed Guarantee by the GPI for 10 years.