Generator Installation in Friendswood, TX
Friendswood, TX sits along Clear Creek on the Galveston and Harris county line, southeast of Houston. Grasten installs and services standby generators here from our Conroe facility, part of our Houston service area.
Friendswood Outage History
Why Friendswood Homeowners Act
When Hurricane Beryl came through in July 2024, about 120,000 metered customers in Galveston County were without power on the first morning, more than 70,000 of them on TNMP's lines and more than 65,000 on CenterPoint's. TNMP, which serves part of Friendswood, reported 114,102 customers without power at midday on July 8. Winter Storm Uri in February 2021 left more than 1.4 million CenterPoint customers without power on the night of February 15.
Friendswood 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.
The county line splits the city: CenterPoint serves the Harris County side of Friendswood and Texas-New Mexico Power the Galveston County side. Both restore their own outages, and you choose a retail provider either way.
The City of Friendswood Community Development Department issues the permit through its Cityworks portal; the city has moved fully from paper to online permits. Grasten pulls the permit with a licensed electrician and schedules the inspections.
CenterPoint Energy Entex runs the gas mains in Friendswood. Streets without a main use a propane tank.
Hurricane Beryl, July 2024: about 120,000 metered customers in Galveston County were without power on the first morning, more than 70,000 of them on TNMP's lines.
Why Friendswood Chooses Grasten
What Makes Us Different
Multi Brand Dealer
Friendswood straddles the Galveston and Harris county line, so your lines may belong to CenterPoint or Texas-New Mexico Power. The utility does not limit your choice of generator: we carry four brands and size one to the house during a free estimate.
Four Brands, One Recommendation
12 Year Power Plus Warranty
During Beryl, Texas-New Mexico Power, which serves part of Friendswood, had 114,102 customers out at midday on July 8. Generac air-cooled systems Grasten installs come with a dozen years of warranty protection for parts, labor and travel, kept active by annual maintenance.
12 Years of Full Coverage
Customized Mobile Fleet
Friendswood is about 59 miles from our Conroe facility, so our service vans work as rolling workshops loaded with common replacement parts, and the drive ends in a repair, not a parts order.
Ready to Roll
Typically 2 to 4 weeks from estimate to power on, depending on City of Friendswood 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 ›
Friendswood Pricing
What Does a Generator Cost in Friendswood?
Whole home installs in the Houston area typically run $7,000 to $25,000+. Here's where most Friendswood 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 Friendswood 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 Friendswood 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 Friendswood
Also serving Webster, Alvin, Dickinson and the rest of the Clear Creek area.
Frequently Asked Questions
Friendswood Generator Questions, Answered
Do I need a permit to install a generator in Friendswood?
Yes. The permit comes from the City of Friendswood Community Development Department at 910 South Friendswood Drive, applied for through the city’s Cityworks Public Portal; the electrical permit application is a Community Development form, and the city has phased out paper applications. Grasten pulls the permit with a licensed electrician and schedules the inspections.
What knocks out power in Friendswood?
Hurricanes and summer storms on the overhead lines, and the occasional grid failure. When Hurricane Beryl came through in July 2024, about 120,000 metered customers in Galveston County were without power on the first morning, more than 70,000 of them on TNMP’s lines and more than 65,000 on CenterPoint’s. TNMP, which serves part of Friendswood, reported 114,102 customers without power at midday on July 8. A standby generator starts on its own within seconds and runs until your utility restores service.
Which evacuation zone is my Friendswood home in?
ZIP 77546 is in Zip-Zone B on the Houston-Galveston Area Council hurricane evacuation map. Look up your address on the map before the season starts, and plan the generator around staying or going.
Is natural gas available at my Friendswood address?
Often, yes. CenterPoint Energy Entex serves Friendswood. 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 Friendswood 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 Friendswood for repairs?
Friendswood is served from our Conroe facility at 10890 TX-242, about 59 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 Friendswood estimate. We pull the permits, then install and service your generator.