Standby Generator Installation in Houston, TX — AOT Mechanical

AOT Mechanical installs two of the most trusted standby generator brands in the industry: Generac and Kohler. Both manufacturers produce air-cooled and liquid-cooled units suited to different home sizes and backup needs. Generac whole-home generators are among the most popular in the Houston market, with models ranging from 10 kW units for smaller homes up to 24 kW and larger for full whole-home backup. Kohler generators offer similar range and are known for their commercial-grade reliability. Our technicians are certified to install, commission, and maintain both brands.

The standby generator installation process for a Houston home involves several coordinated steps. First, AOT Mechanical performs a load calculation at your home to determine the correct generator size for your needs and budget. Next, we handle the permit applications with the City of Houston or the applicable county authority. Installation day includes placing and anchoring the generator unit, connecting it to your home's natural gas or propane supply, installing the automatic transfer switch in your electrical panel, and running the final tests and load bank evaluation. We coordinate the gas line work and electrical simultaneously to minimize disruption to your schedule.

Generator installation costs in Houston TX range from approximately $4,000 for a basic 10 kW system on a smaller home to $15,000 or more for a large liquid-cooled whole-home system with extensive gas and electrical work. The primary cost variables are generator size (kW), transfer switch type (standard vs. smart), gas line run length, and any required electrical panel upgrades. AOT Mechanical provides written, itemized estimates at no charge — call (281) 883-9972 to schedule your free in-home estimate.

Beyond installation, AOT Mechanical offers ongoing generator maintenance plans for Houston homeowners. Generac and Kohler both recommend annual service to keep your generator ready for the next outage. Our maintenance plans include oil and filter changes, spark plug inspection, load testing, battery check, and a full operational test. A generator that isn't maintained can fail to start when you need it most. We also service and repair existing generators — if your current unit isn't starting reliably or is due for maintenance, call 281-883-9972. For air conditioning service, see our <a href='/ac-repair-houston' class='text-red-600 underline hover:text-red-700'>AC repair Houston</a> page.

AOT Mechanical has been serving Greater Houston since 2009. We hold Texas HVAC contractor license TACLB29027E, are fully insured, and are BBB accredited. Our generator installation teams serve Houston and all surrounding communities including The Woodlands, Conroe, Katy, Cypress, Sugar Land, Pearland, Spring, Tomball, and Humble. Whether you're protecting your family from the next hurricane season or simply want the peace of mind that comes with reliable backup power, AOT Mechanical is Houston's trusted generator installation contractor.