Authorized Generac Generator Dealer: Sales, Installation, & Service by Grasten Power in Texas
A Generac Prestige Dealer Serving Houston, Dallas & Fort Worth
Generac is America’s number one selling home backup generator brand. A Generac standby unit sits outside like an air conditioner, runs on your existing natural gas or propane supply, and powers your electrical panel the moment the utility fails.
Prestige is the highest dealer status Generac awards. Grasten holds it, and our own factory-trained crews install the full Generac line, from a 7kW Guardian to a large liquid-cooled QuietSource.
Why Grasten
Why Choose Grasten Power as Your Certified Generac Dealer?
Generac Prestige Dealer
Prestige is Generac's highest certification level, held by dealers who meet its standard for expert installation and service.
Full Line Specialist
We install every Generac residential and commercial series, from small home units to large industrial systems, and size each one to the load it has to carry.
Texas' Largest Dedicated Team
More than 20,000 installations make Grasten the largest generator-only installer in Texas, and thousands of those systems are Generac.
Product Lines
Explore Generac's Home and Commercial Generator Lines
Generac builds standby power for every property: Guardian and QuietSource models for homes, the Protector and Industrial series for business.
Guardian Series
Air-cooled residential generators (7 to 26kW)
Powers the whole house
Quiet running
Starts automatically
Protector Series
Commercial diesel generators (10 to 200kW)
Commercial-grade build
Made for heavy-duty use
Long diesel runtime
QuietSource Series
Liquid-cooled residential generators (22 to 150kW)
Ultra-quiet engine
Covers large homes
Premium performance
Industrial Series
Heavy-duty industrial power (10 to 3250kW)
Highest power output
For mission-critical sites
Built to run 24/7
Support
Generac Service, Parts & Warranty Support
The same Grasten team handles maintenance, repair and warranty work on your Generac.
Parts in Our Texas Warehouse
Genuine Generac parts are stocked in our Texas warehouse and on our vans, so repairs don't wait on shipping.
Maintenance & Repair
Annual maintenance keeps your warranty active, and our technicians repair every Generac series.
12-Year Power Plus Warranty
Generac air-cooled installs include 12 years of labor, travel, parts and major component coverage.
Reviews
What Texas Homeowners Say About Our Generac Work
More than 3,200 Google reviews average 4.8 stars, from homeowners who trusted us with their backup power.
Accessories & Monitoring
Generac Accessories & Mobile Link Monitoring
Generac Mobile Link remote monitoring sends real-time alerts with specific fault codes, so a problem is diagnosed faster. We also fit cold weather kits, surge protection, load management modules and maintenance kits.
Service Areas
Where We Install Generators
Find Your Coverage
Free Estimate
Request Your Free Generac Generator Estimate Today
Schedule a free estimate with Grasten's Generac Prestige team and get a proposal sized to your home, with no obligation to buy.