Plumbing; Advisory services relating to pipe laying; Bathtub and bath boiler cleaning; Building construction, remodeling and repair; Contractor services, namely, review of and remedial recommendations for building plumbing, electrical and mechanical systems for others; Descaling services for water pipes; Descaling services for water heaters; Drain and sewer cleaning and rootering services; Drain cleaning services; Installation and replacement service for water heaters; Installation of pipe in...