Leaks into underground structures can be notoriously difficult to locate and resolve.
Older basements simply deteriorate as a result of movement over the years or the exposure to groundwater decades can also take its toll. On occasion, however, the problem is caused simply by a burst main or sewer.
Modern structures with basement areas incorporate a more sophistiacted form of tanking which should be resistant to water penetration of any kind.
It is essential, therefore, that steps are taken during the construction phase to ensure that the waterproofing is installed correctly and integrity tested by a competent test house such as Thornton Consulting.
Other problems arise from leaks into basements from above, caused by any of a number of factors, from leaking pavement lights to defects in the above-ground structure.