A worn-out HVAC unit can lead to inconsistent temperatures within a home. HVAC unit replacement costs range from $5,000 to $12,500, with the national average at $7,500.

It can cost $3,500 on average to replace your home’s ductwork. Even if just a small section needs replacing, it can still cost you $270 and $500 per air duct. Luckily, most home warranties cover ...

Your air ducts could be wasting money, as well as endangering your family. Here's what you need to know.

You should clean your air ducts every three to five years, but the specifics depend on your home.