Perform building demolition, selective demolition, new building construction, additions and renovation of existing building construction. a) Building construction includes, cast-in-place concrete, unit masonry, structural steel, steel stud framing systems, exterior and interior finish carpentry, foundation waterproofing, building insulation, sheet metal flashing and trim, new roofing systems, roof accessories, fire stopping systems, joint sealants, steel doors and frames, interior wood doors, overhead coiling doors, aluminum framed entrances and storefronts, door hardware, glass, gypsum board, tiling, suspended ceiling systems, sound absorptive panels, painting, building specialties, residential appliances, window blinds and shades, manufactured casework, telescoping stands, elevator, fire sprinkler systems, HVAC and plumbing systems, electrical power, lighting and communication systems. b) Site construction includes site clearing, water, gas, electric and fire water services, grading, drainage control, site and building excavation and backfilling, concrete paving, asphalt paving, landscaping, irrigation, and other site improvements.