Furnace Replacement Cost in Michigan (2026)
A new furnace in Michigan typically runs about $3,500 to $7,500 installed for most homes in 2026, depending on size, efficiency and whether it is gas or oil. High-efficiency condensing furnaces and larger homes push toward the top of that range and beyond.
A furnace is a ten to twenty year decision, and the price depends on more than the box. Size, efficiency rating, gas versus oil, the condition of your existing venting and ductwork, and the complexity of the install all move the number. This guide lays out typical Michigan ranges so you can read any quote you are handed.
Every figure here is a typical installed range for the Livingston and Oakland county area as of 2026. The only way to get an exact number is a free in-home assessment with a written quote, which is what Oak Grove provides.
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What a new furnace costs in 2026
For most Michigan homes a furnace replacement runs about $3,500 to $7,500 installed, with high-efficiency and premium modulating units climbing higher. The single biggest driver after size is efficiency: an 80 percent AFUE unit costs less up front, while a 95 percent unit costs more but burns less gas every winter.
| Furnace type | Efficiency (AFUE) | Typical installed |
|---|---|---|
| Mid-efficiency gas | 80% | $3,500 - $5,000 |
| High-efficiency gas | 90-97% | $5,000 - $8,500 |
| Oil furnace | 80-87% | $5,500 - $9,000 |
| Modulating / premium | 97%+ | $7,500 - $11,000 |
What drives your price up or down
Two homes can get very different quotes for good reasons. These are the real factors.
- Size: a proper load calculation sets the capacity your home needs, bigger homes cost more.
- Efficiency: higher AFUE equipment costs more but lowers your gas bill for its whole life.
- Gas or oil: oil furnaces and oil-to-gas conversions carry different costs.
- Venting: switching to a high-efficiency condensing furnace usually requires new PVC venting.
- Ductwork: repairs, resizing or a new return can add to the job.
- Removal and code: hauling the old unit and meeting current code are part of a proper install.
| Factor | Effect on cost |
|---|---|
| Furnace size (BTU) | Bigger homes need more capacity. |
| Efficiency (AFUE) | Higher efficiency costs more up front, less each winter. |
| Gas vs oil | Oil units and conversions can cost more. |
| Venting changes | High-efficiency units need new PVC venting. |
| Ductwork condition | Repairs or modifications add cost. |
Should you repair or replace?
If your furnace is under about fifteen years old and the repair is modest, repairing is usually the better value. Once a furnace passes fifteen to twenty years, needs a major repair like a cracked heat exchanger, or is an old low-efficiency unit driving high bills, replacement starts to win. Our guide on repair versus replacement walks through it in detail.
A quote thousands below every other bid usually means an undersized or oversized unit, a like-for-like swap with no load calculation, skipped venting or code work, or the cheapest builder-grade equipment. Those savings show up as high bills and an early replacement.
How to keep the cost down without cutting corners
Size it correctly so you do not overpay for capacity you do not need, choose the efficiency level that matches how long you will stay, keep up with maintenance so the new unit lasts its full life, and ask about financing to spread the cost. Oak Grove lays out the options with honest numbers so you choose what fits.
Furnace Replacement Cost in Michigan FAQ
How much does it cost to replace a furnace in Michigan?
Most Michigan furnace replacements run about $3,500 to $7,500 installed in 2026, with high-efficiency and premium units higher. Size, efficiency and venting drive the price. A free assessment gives you an exact quote.
How long does a furnace last?
A quality furnace that is correctly sized and maintained commonly lasts fifteen to twenty years or more in Michigan. Install quality and sizing matter as much as the brand.
Is a high-efficiency furnace worth the extra cost?
Often yes if you plan to stay in the home, because a 95 percent AFUE furnace burns noticeably less gas every winter than an 80 percent unit. We show you the payback so you can decide.
Does a new furnace need new venting?
High-efficiency condensing furnaces vent through PVC rather than the old metal flue, so switching to one usually means new venting. We include that in the quote up front.