Grogg's Heating & Air Conditioning is a total scam. They charged $70 to misdiagnose a heating unit and then told my family it would cost another $800 so we could heat our home. It finally took me, a 21 year old with no experience in HVAC, tracing wires to find out that it was simply some crossed wires. Grogg's is a sham of an establishment and even after wasting our time with their worthless consultation, they won't make good on their pathetic visit to our home. Take your business elsewhere, don't support these thieves.