Published ranges are broad for a reason
Angi's 2026 national guide lists a combined furnace-and-AC replacement range of $5,000 to $12,500. It lists duct-free systems from $2,000 to $14,500 and packaged heating-and-air systems from $10,000 to $14,000. Those are general published figures—not QuoteCheck data, a California quote range, or a recommendation for your home.
Heat-pump proposals should not be compared to furnace-only proposals as if they include the same work. Ask what heating equipment is being removed, what cooling equipment is being added or replaced, whether electrical capacity needs changes, and whether the ducts can support the new system.
Furnace, heat pump, or both: the comparison questions
- What exact heating and cooling equipment is included, and are the components matched and rated together?
- For a heat pump, what are the SEER2, EER2, and HSPF2 ratings, and what backup heat is included?
- Will the electrical panel, breaker, disconnect, wiring, or thermostat need upgrades?
- Are duct repairs, air sealing, filter upgrades, or return-air changes part of the quote?
- What incentive programs might apply, and what must happen before installation for eligibility?
Replace one component or the system together?
Replacing connected equipment together can simplify matching, warranty, labor, and installation logistics. But “replace it all” is not automatically the right call. Ask the contractor to explain the condition of each component, the compatibility issue if only one is replaced, and the incremental price for each option.
If the decision feels rushed, collect the model numbers and submit the quote context. QuoteCheck will not invent an instant verdict, but your real details help establish the local comparison homeowners need.