Most Tonna Mechanical customers in Rochester, MN and southern Minnesota pay $4,500 to $11,000 for a new furnace, $4,500 to $15,500 for a new central air conditioner, and $8,000 to $21,000 to replace both at the same time. A new tank water heater typically runs $1,500 to $6,500. The ranges below come from recent Tonna installations. For an exact price, call 507-288-1908 or request a free in-home estimate.
Typical price ranges
| Equipment | Typical installed price |
|---|---|
| New furnace (furnace only) | $4,500 – $11,000 |
| New central air conditioner (AC only) | $4,500 – $15,500 |
| New furnace and air conditioner together | $8,000 – $21,000 |
| Heat pump system | $10,500 – $32,500 |
| Ductless mini-split | $5,000 – $23,000 |
| Tank water heater replacement | $1,500 – $6,500 |
| Water softener | $1,800 – $5,000 |
| Boiler replacement | $6,500 – $18,000 |
| Tankless water heater | Free quote |
These ranges are based on recent Tonna Mechanical installations and are for general information only. They are not a quote or estimate. Your price depends on the equipment you choose, your home’s size and layout, ductwork, venting, gas or electrical work, advanced labor needs, permits, and any rebates, tax credits or financing that apply. We give you an exact, upfront price after a free in-home estimate.
What affects the price?
- The equipment you choose. Higher-efficiency, variable-speed and two-stage systems cost more up front but can lower your energy bills.
- The size of your home. Larger homes need larger equipment, and some homes need more than one system or zone.
- Ductwork, venting and gas lines. Replacing or modifying ductwork, venting or gas piping adds to the job.
- Electrical work. Some new equipment, especially heat pumps and some air conditioners, needs electrical upgrades.
- Advanced labor needs. Tight spaces, attics, crawl spaces and older homes can take more time.
- Permits and code requirements. These vary by city.
- Rebates, tax credits and financing. Utility rebates and any tax credits that apply can lower your final cost.
Furnace and air conditioner costs
A new furnace typically costs $4,500 to $11,000, and a new central air conditioner typically costs $4,500 to $15,500. Replacing both at the same time typically costs $8,000 to $21,000, and it often makes sense when both are getting older, since the two systems share the same blower and ductwork. Prices at the low end are for standard-efficiency equipment in an average-sized home. Prices at the high end are for high-efficiency or variable-speed equipment, larger homes, multiple systems, or jobs that need ductwork or electrical changes. We install industry-leading Carrier equipment, and major heating and cooling purchases include a free year of maintenance.
Heat pump and ductless mini-split costs
A heat pump system typically costs $10,500 to $32,500. Many Minnesota homes choose a dual-fuel system that pairs a heat pump with a gas furnace for the coldest days. A ductless mini-split typically costs $5,000 to $23,000. A single-zone system for one room is at the low end, and multi-zone systems that heat and cool several rooms are at the high end.
Water heater, water softener and boiler costs
Replacing a standard tank water heater typically costs $1,500 to $6,500, depending on size, gas or electric, and venting. Tankless water heaters cost more to install; call us for a free quote. A water softener typically costs $1,800 to $5,000, and a boiler replacement typically costs $6,500 to $18,000.
Ways to lower the cost
- Ask about utility rebates on qualifying high-efficiency equipment. Rebates change, so we will help you check what applies to your home. See 2026 rebates in our area.
- Ask about any tax credits that may apply to your equipment.
- Financing is available on new heating and cooling systems.
- Free second opinions: if another company quoted you, we are happy to take a look.
- Comfort Club members get annual tune-ups and member discounts.
Frequently asked questions
How much does a new furnace cost in Rochester, MN?
Most Tonna customers pay $4,500 to $11,000 for a new furnace, installed. This range is for general information only and is not a quote. Your price depends on the equipment you choose, advanced labor needs, electrical or venting work, rebates and tax credits. We give you an exact, upfront price after a free in-home estimate.
How much does a new air conditioner cost in Rochester, MN?
Most Tonna customers pay $4,500 to $15,500 for a new central air conditioner, installed. This range is for general information only and is not a quote. Your price depends on the equipment you choose, advanced labor needs, electrical or venting work, rebates and tax credits. We give you an exact, upfront price after a free in-home estimate.
How much does it cost to replace a furnace and AC together?
Replacing both typically costs $8,000 to $21,000. This range is for general information only and is not a quote. Your price depends on the equipment you choose, advanced labor needs, electrical or venting work, rebates and tax credits. We give you an exact, upfront price after a free in-home estimate.
How much does a heat pump cost in Minnesota?
A heat pump system from Tonna typically costs $10,500 to $32,500, depending on the size, efficiency and whether it is paired with a furnace. This range is for general information only and is not a quote. Your price depends on the equipment you choose, advanced labor needs, electrical or venting work, rebates and tax credits. We give you an exact, upfront price after a free in-home estimate.
How much does a new water heater cost?
Replacing a standard tank water heater typically costs $1,500 to $6,500. Tankless water heaters cost more; call for a free quote. This range is for general information only and is not a quote. Your price depends on the equipment you choose, advanced labor needs, electrical or venting work, rebates and tax credits. We give you an exact, upfront price after a free in-home estimate.
Are your estimates free?
Yes. We offer free in-home estimates and free second opinions on new equipment. Call 507-288-1908 to schedule.