Black Diamond Plumbing & Mechanical Inc.
HVAC contractor
Serving McHenry, IL
Website:blackdiamondtoday.com (opens in a new tab)Request a Quote from Black Diamond Plumbing & Mechanical Inc.
Location: 1400 Miller Pkwy, McHenry, IL 60050From Google Business Profile
View on Google Maps →About hvac contractors in McHenry
HVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork. HVAC contractors replace furnaces and central air conditioners, install heat pumps and ductless mini-splits, perform seasonal tune-ups, seal and balance ductwork, add humidifiers and air filtration, and respond to no-heat emergencies.
Typical cost: $5,500–$14,000 for a furnace or central AC replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Ask for a load calculation: A Manual J calculation sizes equipment for your actual home.
- Compare equipment line by line: Match model numbers, efficiency ratings and warranty terms across quotes.
- Verify mechanical licensing: Iowa and several neighboring states license HVAC/mechanical work.