Whole House Generator Costs, Sizing, and Buying Guides
Real installed prices, brand comparisons, and sizing guides to help you choose the right backup generator for your home — without the guesswork.
Explore by Category
Cost & Installation
Real installed prices by size, brand, and location
Brands & Models
Generac, Kohler, and Cummins compared side by side.
Buying Guide
How to choose the right size and fuel type.
Maintenance
Keep your generator running when you need it most.
Financing & Permits
Loans, permits, HOA rules, and insurance.
Use Cases
Real scenarios — hurricanes, EVs, medical equipment, and more.
Why Homeowners Use This Guide
Real Cost Data
No vague ranges — actual installed pricing broken down by size, brand, and region.
No Sales Pitch
Independent comparisons, not a single installer or brand pushing their own product.
Always Updated
Pricing, codes, and brand comparisons kept current as the market changes.
Not Sure Where to Start?
Start with our full cost breakdown, or use our sizing guide to figure out what generator your home actually needs.