Hank Mercer has serviced and installed HVAC for eighteen years, from swapping capacitors on a 100-degree roof to replacing whole systems and sizing ductwork. He has seen what an oversized unit does to a house and how many replacements get sold that a 200-dollar repair would have fixed. The guides here lead with what actually keeps a system running and what a fair price looks like, not with whatever brand has the best spiff this month.
He built HVACPros.space for both sides of the thermostat. Homeowners get straight answers on replacement cost, filters, and how to hire a contractor who does a load calc instead of a guess. Working HVAC pros get a free directory listing so local customers can find a real, licensed tech instead of a private-equity call center.