Pricing reviewed October 2026
Both brands' whole-house systems fall in the typical $6,000–$25,000 installed range (most homes $10,000–$15,000). Generac's broader lineup often gives more options at lower price points; get quotes on comparable kW.
| Home need | Generator size | Installed cost |
|---|---|---|
| Essentials only | 10–14 kW | $6,000 – $10,000 |
| Most homes | 18–26 kW | $10,000 – $15,000 |
| Large / all-electric homes | 26+ kW | $15,000 – $25,000 |
| Generac | Kohler | |
|---|---|---|
| U.S. residential share | 70%+ | Smaller |
| Remote monitoring | Mobile Link (included) | OnCue |
| Power restoration | Automatic | ~10 seconds |
| Heritage | Broadest residential lineup | Industrial engines; founded 1920 |
| Warranty | 5 years (extendable to 10) | 5 years / 2,000 hours (extendable to 10) |
| Self-test | Quiet-Test mode | Weekly exercise |
| Best for | Practical default, wide dealer network | Maximum durability |
More comparisons
Price your system with the home generator cost calculator · Size it with the generator sizing calculator.
Brand facts (Generac 70%+ U.S. residential market share, Mobile Link monitoring, Quiet-Test; Kohler ~10-second power restoration, industrial engine heritage since 1920, OnCue monitoring, 5-year/2,000-hour warranty; both offer 5-year warranties extendable to 10 years) come from the KohlerVsGenerac brand comparison sources. Specific model specs change often — confirm on the manufacturer's spec sheet. Prices from the HomeGeneratorCost 2026 guide.