8. Rough Plumbing, Electrical & HVAC

At this stage, your general contractor will bring in specialized subcontractors to handle the rough plumbing, electrical and HVAC systems within your home. The plumber will install all the water lines, sewer lines and bathtubs. The HVAC subcontractor will install your heating, ventilation and air conditioning systems. The electrician will install wires, electrical outlets, lights, and switches. They will also talk with you about using energy efficient solutions.