ComfortCostGuide

Metro cost guide

Billings, Montana: HVAC Replacement Cost Calculator

Replacing HVAC equipment in Billings typically runs $3,500 to $7,000 for a gas furnace and $4,000 to $7,500 for central air conditioning, installed. If you're swapping both at once, most Billings homeowners land between $7,500 and $13,000, while a cold-climate heat pump falls in the $6,000 to $12,000 range. Labor here runs slightly below the national average, with local HVAC technicians earning around $29.94 an hour.

Worked example

Take a 1,900-square-foot ranch in the Heights with an original gas furnace and a 15-year-old AC condenser sharing the same ductwork. Because Billings sits in climate zone 6, heating capacity drives the sizing, and replacing both units together saves a second trip charge and a second round of refrigerant line work. A mid-efficiency furnace paired with a standard-efficiency AC on existing ducts would land near the middle of the $7,500 to $13,000 combined range — roughly $9,500 to $10,500 — with the higher end reserved for high-efficiency equipment, new line sets, or duct modifications.

Frequently asked questions

Is a heat pump worth it in Billings' cold winters?

Billings is in climate zone 6, so any heat pump installed here should be a cold-climate model with backup heat, which is why installed costs run $6,000 to $12,000 versus $3,500 to $7,000 for a gas furnace. The upside is that one system handles both heating and cooling, so you're not also paying $4,000 to $7,500 for a separate AC. Ask installers for the model's rated capacity at low outdoor temperatures before signing.

Should I replace my furnace and AC at the same time?

If both units are near the end of their life, doing them together usually costs less than two separate jobs. In Billings, a combined AC-plus-furnace replacement runs $7,500 to $13,000, compared with $3,500 to $7,000 and $4,000 to $7,500 if you tackle them years apart. Matched equipment also tends to perform better than pairing a new condenser with an aging air handler.

What does a ductless mini split cost in Billings?

Ductless mini splits in Billings run $3,500 to $10,000 installed. The low end covers a single indoor head for one room — a finished basement, garage shop, or bonus room — while multi-zone systems covering several areas push toward the top of the range. They're most common in Billings homes with additions or spaces the existing ductwork never reached.

Why do quotes in Billings vary so much for the same system?

Labor in Billings runs at about 96% of the national average, with technicians earning around $29.94 per hour, so labor differences alone rarely explain a wide spread. Most of the gap comes from efficiency tier, equipment brand, and how much sheet metal, venting, or electrical work your home needs. Get at least three itemized bids that list model numbers so you're comparing the same thing.

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