An HVAC Estimator plays a crucial role in the construction and maintenance industry by assessing heating, ventilation, and air conditioning systems for residential or commercial projects. Their responsibilities include reviewing blueprints, specifications, and other documents to determine the HVAC requirements for a building. Estimators calculate costs for equipment, materials, and labor needed for HVAC installations or upgrades, considering factors such as building size, energy efficiency standards, and local building codes. They prepare detailed project proposals and estimates, liaising with clients, contractors, and suppliers to negotiate terms and ensure accurate budgeting throughout the project lifecycle.