The numbers
Most projects land between $2,000 and $13,500 fully installed, with a national average near $5,160.
Range includes generator unit, automatic transfer switch, concrete pad, permits, gas line tie-in, electrical labor, and startup testing.
| Generator size | Unit cost by capacity | Best for |
|---|---|---|
| 7.5 to 10 kW | $2,000 to $3,500 | Essential and non-essential systems, homes under 1,500 sq ft |
| 14 to 18 kW | $4,000 to $5,500 | Critical systems, homes 1,500 to 3,000 sq ft |
| 20 to 24 kW | $5,000 to $6,500 | Main systems, homes 3,000 to 5,000 sq ft |
| 26 to 32 kW | $6,500 to $15,000 | Main systems plus additional appliances and devices |
| 45 to 48 kW | $16,200 to $21,000 | Large homes, commercial-grade equipment |
Unit prices by capacity are HomeAdvisor figures. Installation labor runs $1,500 to $5,000 on top of the unit.
Sources
These are published national figures, not a private price database. Your actual quote depends on your panel, your gas line run, and your county permit schedule.
- HomeAdvisorReports whole-house generator installation between $1,516 and $8,810, averaging about $5,160, with most homeowners paying near that average. Unit prices by capacity run from roughly $500 for portable sizes to $16,000 or more for 45 to 48 kW commercial-grade units. Source
- AngiReports whole-house installation between $350 and $13,500, averaging around $5,158. Labor alone runs $1,500 to $5,000, and subpanel upgrades or extensive wiring push a project to the high end. Source
- Your dealerThe only number that matters for your project. Panel work, gas line distance, and permits are quoted after a site walk.
What drives the variance
- Generator size10 kW vs 26 kW swings the unit price by $8,000+
- Transfer switchAutomatic adds $2,000 to $4,000 over manual
- Gas lineVaries with distance from the meter. Quoted after a site walk.
- Electrical panelUpgrade adds $2,000 to $4,000 if needed
- PermitsVaries by county. Your installer pulls the permit.
- Concrete padQuoted by the installer, varies by pad size and site access.
- LaborVaries with local wage rates.
For dealers
Shared leads put you in a race with two other shops. The homeowner picks the first caller.
I run the ads that fill install calendars. One dealer per metro. Every inquiry passes screening questions before your team sees it, and each one goes to a single dealer.
- Management fee$1,500 per month, or $2,000 if your team is over 15. That is the whole price.
- Ad budgetYou need a minimum of $1,000 per month in your own ad account. I never hold or mark up your ad spend.
- Setup48 hours from approved campaign to live. You never log into Ads Manager.
- Who follows upYour team does. I do not call, text, or set appointments. Installation and the sale are yours.
- Lock-inNo long-term contract. Cancel with written notice before the next billing cycle.
- OwnershipThe ad account and every contact are yours, whether or not you keep working with me.
- GuaranteeI do not promise a number of inquiries or installs. Anyone who does is guessing.
- Service areaOne dealer per metro. Tampa is my metro, so you would be the only one I run ads for here.