Design build services, namely, building construction, renovation and repair services on Mechanical, HVAC, Electrical and Plumbing systems; Construction administration and management services, namely, construction consultation, construction planning, construction supervision, and construction contractor services in the nature of Mechanical, HVAC, Electrical and Plumbing systems contractor; Construction planning services, namely, conducting construction site feasibility studies for Mechanical, HVAC, Electrical and Plumbing systems; construction project management services for Mechanical, HVAC, Electrical and Plumbing systems; construction site work services for Mechanical, HVAC, Electrical and Plumbing systems, namely, on-site construction supervision for Mechanical, HVAC, Electrical and Plumbing systems, installation of utilities in construction sites, Building maintenance and repair; HVAC contractor services; Plumbing services; Mechanical contractor services; Installation, cleaning, repair, and maintenance, boiler cleaning and repair, burner maintenance and repair, carpentry services, chimney sweeping, electric appliance installation and repair, freezing equipment installation and repair, furnace installation and repair, interference suppression in electrical apparatus, irrigation devices installation and repair, kitchen equipment installation, machinery installation, maintenance and repair, office machines and equipment installation, maintenance and repair, painting, interior and exterior, photographic apparatus repair, pipeline construction and maintenance, pump repair, rebuilding machines that have been worn or partially destroyed, repair information, rustproofing, scaffolding, swimming pool maintenance; HVAC installation, maintenance, and repair, air conditioning apparatus installation and repair, and heating equipment installation and repair; Plumbing installation, maintenance, and repair, plumbing, and plumbing contractor services; Computer hardware and telecommunication apparatus installation, maintenance, and repair, installation, maintenance and repair of computer hardware

architectural design services related to Mechanical, HVAC, Electrical and Plumbing systems; architectural services related to Mechanical, HVAC, Electrical and Plumbing systems; technical consultation in the field of architecture related to Mechanical, HVAC, Electrical and Plumbing systems, engineering surveying and engineering related to Mechanical, HVAC, Electrical and Plumbing systems