Generator Installation in Katy, TX
Grasten installs and services standby generators here from our Conroe facility, part of our Houston service area.
Katy Outage History
Why Katy Homeowners Act
When Hurricane Beryl came through in July 2024, 2.26 million CenterPoint customers lost power, the largest outage in the company's history, and 1.28 million of them were still waiting two days later. When Hurricane Beryl came through in July 2024, 250,000 Fort Bend County customers lost power at the peak, by the county judge's count, and 150,000 were still out the next day. Two months before Beryl, the May 16, 2024 derecho had already knocked out more than 900,000 CenterPoint customers in a single evening. Winter Storm Uri in February 2021 left more than 1.4 million CenterPoint customers without power on the night of February 15.
Katy at a Glance
Power Outage Profile
The local details that shape your install: who runs the grid, who issues the permit, and which gas partners are in your area.
CenterPoint Energy owns the poles and wires in Katy. You choose a retail electric provider; CenterPoint restores outages.
Inside the city, the City of Katy Permit and Building Services office issues the permit through its Civic Access portal. Most Katy addresses are outside the city and go through Harris County, Fort Bend County or Waller County. Grasten pulls the permit with a licensed electrician and schedules the inspections.
CenterPoint Energy Entex runs the gas mains in Katy. Streets without a main use a propane tank.
Hurricane Beryl, July 2024: 2.26 million CenterPoint customers lost power, the largest outage in the company's history, and 1.28 million were still out two days later.
Why Katy Chooses Grasten
What Makes Us Different
Multi Brand Dealer
Most Katy addresses sit outside the city and permit through Harris, Fort Bend or Waller County, and Grasten knows which office applies. Before you choose, visit our showroom and hear Generac, Cummins, Kohler and Briggs & Stratton running side by side.
Four Brands, One Recommendation
12 Year Power Plus Warranty
Beryl cut power to 2.26 million CenterPoint customers in July 2024, the largest outage in the company's history. Choose Generac air-cooled and Grasten adds a 12-Year Power Plus Warranty on major components at no added charge, renewed by annual maintenance.
12 Years of Full Coverage
Customized Mobile Fleet
Katy is about 55 miles from our Conroe facility at 10890 TX-242. A Texas parts warehouse keeps every van supplied, so the technician arrives in a vehicle built to finish the repair on the first visit instead of ordering parts and coming back.
Ready to Roll
Typically 2 to 4 weeks from estimate to power on, depending on City of Katy permit timelines. Grasten pulls the permit with a licensed electrician and schedules the inspections. See all six differentiators and the full process on the Houston page ›
Katy Pricing
What Does a Generator Cost in Katy?
Whole home installs in the Houston area typically run $7,000 to $25,000+. Here's where most Katy homes land.
Essential circuits (lights, fridge, AC unit)
Most homes under 3,000 sq ft (full house)
Larger homes, multiple HVAC zones
Large homes, home offices, medical equipment
Prices include equipment, in-house installation, transfer switch, City of Katy permit fees, and our 12-year warranty. Where a CenterPoint gas main reaches your street, a natural gas connection typically adds minimal cost compared with a propane tank installation.
Most Katy homes on city gas service run natural gas. CenterPoint Energy Gas covers most of the metro, and the generator pulls off the same line that already feeds the house.
Houston Hub
Part of Our Houston Region
Full pricing guide, the four-brand comparison, and the complete regional FAQ.
Also Serving Near Katy
Also serving Brookshire, Waller, Hockley and the rest of the Katy area.
Frequently Asked Questions
Katy Generator Questions, Answered
Do I need a permit to install a generator in Katy?
Yes. Inside the city limits the permit comes from City of Katy Permit and Building Services at 901 Avenue C, applied for through the city’s Civic Access portal. Most Katy addresses are outside the city: unincorporated Harris County goes through the County Engineer’s ePermits portal, Fort Bend County through County Engineering’s MGO portal (which also handles the power release), and Waller County through its Engineering Division. Grasten pulls the permit from the right office with a licensed electrician and schedules the inspections.
What knocks out power in Katy?
Hurricanes and summer storms on the overhead lines, and the occasional grid failure. When Hurricane Beryl came through in July 2024, 2.26 million CenterPoint customers lost power, the largest outage in the company’s history, and 1.28 million of them were still waiting two days later. When Hurricane Beryl came through in July 2024, 250,000 Fort Bend County customers lost power at the peak, by the county judge’s count, and 150,000 were still out the next day. A standby generator starts on its own within seconds and runs until CenterPoint restores service.
Is natural gas available at my Katy address?
Often, yes. CenterPoint Energy Entex serves Katy. Where there is no gas main on your street, the generator runs on propane from a tank on your property. We confirm which applies during the free estimate.
Will my Katy HOA allow a whole home generator?
Many HOAs require architectural approval before installation. Grasten Power prepares the application package and goes through the review process for you, so you are not chasing board approvals on your own.
How fast can Grasten reach Katy for repairs?
Katy is served from our Conroe facility at 10890 TX-242, about 55 miles away. Our service vehicles are built out for first visit repairs and stocked with the parts that come up most, and our dispatch runs 24/7 with a live phone.
Get Started
Prepare Now Before the Next Hurricane
Free Katy estimate. We pull the permits, then install and service your generator.