Mechanical contractor services; Construction planning; Construction supervision; General construction contracting; Construction management; Building construction services; Construction of buildings; Building construction supervision; Commercial building construction; Construction project management services; Construction of building interiors; Construction of office buildings; Construction services, namely, excavation; Construction services, namely, grading; Construction of commercial buildings; Construction of industrial buildings; Supervision of building construction; Plumbing services; Plumbing; Maintenance of HVAC systems; Installation, maintenance and repair of heating systems; Installation and maintenance of heating systems; Installation of heating, ventilation and air-conditioning systems; Installation and repair of heating, ventilating and air-conditioning systems; Installation and replacement service for heating, ventilating and air conditioning systems; Drain cleaning services; Pressure washing services; Descaling services for pipes

Monitoring HVAC systems to ensure proper functioning; Providing on-line non-downloadable software for computing energy savings; Providing on-line non-downloadable software for managing HVAC and control systems; Locating and marking placement of underground utility pipes, cable or wires; Environmental services, namely, technical consultation in the field of environmental science, engineering services and design for others in the field of environmental engineering; Environmental services, namely, design for others in the field of environmental engineering; Engineering services in the field of energy efficiency; Consulting services in the fields of energy measurement to improve energy efficiency; Providing temporary use of non-downloadable cloud-based software for managing HVAC and control systems