The HVAC installation costs in the chart below are based on a single residential unit, while two units cost approximately twice the price. Labor costs typically account for 40-50% of the cost of units included in this price. Some things homeowners can do to maintain a new HVAC unit after it has been professionally installed include replacing air filters regularly; sealing any air leaks in ducts; cleaning any debris surrounding the HVAC unit; maintaining a 2-foot clearance around the unit; replace or adjust the thermostat; and clean the evaporator coil, evaporator trap and drain pipe with a garden hose. Some older HVAC systems have SEER ratings as low as 8, indicating it's time for a new HVAC system.
If your HVAC fails, you'll likely think about replacing it as quickly as possible, so you may be wondering about the cost of replacing an HVAC system. When thinking about the replacement cost of your HVAC system, it's important to understand that several pieces of equipment make up the entire HVAC system. Most HVAC contractors don't do insulation, but you can contact your local HVAC company for more information. If the HVAC unit is located in a historic home, in a small attic or in an attic with blown insulation, or if the HVAC unit requires custom-made parts, the price of the installation will increase.
It's slightly larger than a residential HVAC system and typically supplies air to more rooms and a much larger area than smaller home HVAC units. Most HVAC replacements will require new ducts, so be sure to check with your HVAC professional to see if you need to replace the ducts. If the cost to repair the HVAC unit is 30 percent or more of the total cost to replace it, choose to replace the HVAC system. A trusted local HVAC installer will be able to better tell you what features you may need or want for your home system.
Some HVAC companies offer savings on more expensive options, such as a zone system, and many local energy companies offer discounts or rebates for upgrading or replacing an HVAC system, especially if it is an energy-efficient option. Most homeowners looking to replace an HVAC system will simply be able to check what their old types of heating and cooling units were to decide which HVAC unit works best for their home.