Average cost of an average-sized system in a. Cost Factors · Cost of central air conditioning for 2000 square meters. HVAC unit prices depend on the size of the house, the length of the ducts, and the size, type, and brand of the HVAC system. Some HVAC companies offer discounts on more expensive options, such as a zoned system, and many local energy companies offer discounts or rebates to upgrade or replace an HVAC system, especially if it's a energy saving option.
A combined heating and air conditioning replacement is cost-effective if repair prices approach 30 percent of the cost of a completely new HVAC unit. Some things homeowners can do to maintain a new HVAC unit after having it professionally installed include replacing air filters regularly; sealing any air leaks in the ducts; cleaning up any debris surrounding the HVAC unit; maintaining a 2-foot space around the unit; replacing or adjusting the thermostat; and cleaning the evaporator coil, evaporator trap, and drain pipe with a garden hose. Most HVAC replacements will require new ducting, so be sure to check with your HVAC professional to see if you need to replace the ducts. The total price depends on the size of the air conditioner and whether any repairs are needed to the HVAC system existing.
If the HVAC unit is in a historic home, in a small attic, or in an attic with built-in insulation, or if the HVAC unit requires custom-made parts, the price of the installation will increase.
