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Central air installation and replacement

Start by separating the equipment replacement from the ductwork question. An existing duct system needs its own assessment; replacing an outdoor unit alone does not answer whether air reaches the rooms that need it.

A gray-green condenser unit with an exposed coil on a roof curb, with gas piping and a disconnect box on a flat roof.
Air Zone installation photograph. Confirm the equipment and scope for your project.

Can the existing ducts stay?

Possibly. Ask for an assessment of their condition and connections before treating reuse as part of the quote. ENERGY STAR identifies leaking and poorly connected ducts as sources of lost conditioned air.

Read more: ENERGY STAR: duct sealing

What should the estimate spell out?

Ask which indoor and outdoor components are included, whether duct changes are included, and who handles electrical work, equipment removal, controls, and any required permits. Compare written scopes as well as totals.

What if the house has no ducts?

Make that clear at the start. Ask about the scope of adding ducts and compare it with a ductless option. A heat pump can also provide cooling, so include heating needs when discussing alternatives.

Read more: Department of Energy: heat pump systems

Include in your inquiry

  • Whether this is the first central air system or a full replacement
  • Existing indoor and outdoor model numbers, if available
  • Rooms that are consistently warmer or cooler than the rest
  • Property location and preferred installation timing

These notes help you prepare an inquiry. Equipment selection, price, scheduling, and the work Air Zone can provide must be confirmed for your property.

Tell us what
you need installed.

Include the property location, the equipment involved and your preferred timing.

Submit your project details first. A call option appears after a successful submission.

New installations and complete replacements.

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