Reviewed: the leading whole-home standby generator brands - pricing, kW range, fuel and warranty.
Generac is the #1 standby generator brand in 2026 with the largest dealer and service network. Kohler is the premium choice with industrial-grade engines, Cummins leads on power per dollar in higher-kW residential, Briggs & Stratton is a strong mid-tier choice, and Champion offers the best value for smaller homes.
Side-by-side overview of every pro we reviewed.
| Pro | Rating | Best For | Starting Price (installed) | Power Range | Warranty | Fuel |
|---|---|---|---|---|---|---|
#1Generac | 9.3/10 | #1 market share | From $7,500 | 9–150 kW | 5 yr limited | Natural gas / propane |
Kohler | 9.0/10 | Premium engines | From $9,000 | 14–150 kW | 5 yr / 2,000 hr | Natural gas / propane |
Cummins | 8.8/10 | Power per dollar | From $8,500 | 13–150 kW | 5 yr / 2,000 hr | Natural gas / propane |
Briggs & Stratton | 8.5/10 | Mid-tier reliability | From $7,000 | 10–48 kW | 5 yr limited | Natural gas / propane |
Champion | 8.2/10 | Smaller home value | From $5,500 | 8.5–14 kW | 10 yr limited | Natural gas / propane |
Source: QuackQuack editorial · Data verified April 2026
Answers to the questions homeowners ask most before getting quotes.
Our editors apply a single methodology to every category so you can compare apples to apples.
Years in business, accreditations (BBB, NARI, manufacturer-certified), and independent customer reviews.
Quality of materials, installer training, length and transferability of labor and product warranties.
Quoted price ranges, in-house financing terms, and how transparent the company is about costs.
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