37 Air conditioning contractor services; Building construction observation, namely, static inspection, functional verification inspection, performance verification inspection; Building inspection; Electrical contractor services; General building contractor services; General contractor services, namely, plumbing, heating and air conditioning, carpentry, drywall, painting, electrical, building and framing contractor services; Heating contractor services; HVAC contractor services; Installation of building insulation; Installation of insulating materials; Mechanical contractor services; Technical support services, namely, technical consultation in the field of application of spray-on insulation and protective coatings