Generator Installation Cost by Size — Houston TX 2026
All prices include unit, transfer switch, gas line connection, electrical wiring, permits, and installation labor.
Runs lights, refrigerator, small window AC, outlets. Cannot power central AC.
Ideal for: 800-1,200 sq ft or partial coverage
fully installed
Runs entire home including one central AC system, appliances, lights, electronics.
Ideal for: 1,500 – 2,500 sq ft
fully installed
Runs entire home with one large or two smaller AC systems. Covers all appliances comfortably.
Ideal for: 2,000 – 3,500 sq ft
fully installed
Full coverage for large homes with multiple AC systems, pool equipment, electric vehicles.
Ideal for: 3,500+ sq ft
fully installed
What's Included in the Price
Why Houston Homeowners Need Standby Generators
Houston's power grid has demonstrated significant vulnerability — from Hurricane Harvey to Winter Storm Uri to routine hurricane season threats. A whole-home standby generator activates automatically within seconds of a power outage, running on natural gas from your utility line with no need to store fuel or manually start anything. In Houston's summer heat, a power outage without AC can become life-threatening within hours, particularly for elderly family members or young children.
Financing Makes Generator Installation Affordable
A 22kW Generac installation at $11,000 financed over 5 years at competitive rates is approximately $200/month — less than what Houston homeowners typically lose in spoiled food, hotel stays, and business disruption during a single major outage. AOT Mechanical offers flexible financing options with approved credit.
Get a Free Generator Installation Estimate
Our technicians visit your home, assess your electrical load, and provide a written fixed-price quote. No obligation.
