A BCA will review all common areas but only a sampling of unit interiors — usually about 10%. This is standard practice and allows engineers to develop a basic understanding of the range of components. For co-ops that want more detailed information, professional unit inspections are a useful supplement, and we can incorporate information from such inspections into our plans.
Engineers can carry out inspections of every unit in a co-op, but most co-ops prefer to obtain detailed unit data using the services of management companies.