Power outages in Texas can arrive with hurricanes, severe thunderstorms, winter freezes or pressure on the electricity grid. A professionally installed standby generator can automatically restore power to important systems such as air conditioning, refrigeration, lighting and medical equipment.
The company you choose should provide more than the generator itself. Proper load calculation, permits, electrical and fuel connections, transfer-switch installation, testing and long-term maintenance are equally important. The following companies were selected for their Texas presence, product choices, installation experience and after-sales support.
1. Generator Supercenter
Generator Supercenter is one of the most prominent generator companies founded and headquartered in Texas. Its main Tomball showroom supplies Generac standby generators for residential and commercial properties.
The company provides turnkey installation, including site assessment, generator placement, electrical connections, fuel coordination, permits when required and final testing. Its available systems range from standard 18kW residential models to larger units reaching 60kW for properties with heavier power requirements.
Generator Supercenter also provides scheduled maintenance and repair services. While it focuses strongly on Generac equipment, its technicians service generators from different manufacturers. The company has expanded through numerous locations across Texas and other states.
Why Generator Supercenter is good: Its specialised showrooms, large Generac selection and complete installation process make it convenient for homeowners who want one company to manage the entire project.
- Address: 23123 State Highway 249, Tomball, TX 77375
- Official website: https://generatorsupercenter.com/
2. Grasten Power Technologies
Grasten Power Technologies is a Texas generator specialist headquartered in Conroe. The company has more than 20 years of experience and reports completing over 20,000 installations across the state.
Unlike installers that represent only one manufacturer, Grasten works with Generac, Kohler, Cummins and Briggs & Stratton generators. This allows customers to compare several brands based on engine type, capacity, noise, warranty and budget.
Its services include residential and commercial installation, maintenance, remote monitoring, warranty support and repairs. Grasten says its installations are handled by in-house electricians, gas technicians and generator specialists rather than outside subcontractors. Its current programme also advertises extended warranty protection on qualifying installations, subject to the written terms.
Why Grasten Power Technologies is good: Its multi-brand selection and generator-only service operation are useful for customers who want to compare equipment rather than being limited to one manufacturer.
- Address: 10890 TX-242, Conroe, TX 77385
- Official website: https://grastengenerators.com/
3. A&A GenPro
A&A GenPro has served the Greater Houston generator market since 2002. It provides turnkey backup-power solutions for Houston, Katy, Sugar Land, Cypress, Richmond, Fulshear and The Woodlands.
The company manages site consultations, generator sales, installation, maintenance and repair. Its technicians can evaluate the property’s electrical demand and determine whether the customer needs selected-circuit backup or a whole-house system.
A&A GenPro works with established manufacturers and is an authorised Cummins generator dealer. It also handles commercial and industrial generator requirements, making it suitable for both homeowners and businesses needing reliable emergency power.
Why A&A GenPro is good: Its long Houston-area experience and ability to manage residential, commercial and industrial projects make it suitable for customers with more specialised power requirements.
- Address: 4400 Blalock Road, Suite 400, Houston, TX 77041
- Official website: https://aagenpro.com/
4. Quality Home Products of Texas
Quality Home Products of Texas has supplied home generators in the Houston region since 1989. It serves Houston, Spring, Kingwood, Tomball, Magnolia and other nearby communities.
The company specialises in Kohler whole-home standby generators. Its service includes generator selection, professional installation, financing options and continuing local maintenance. Customers can request an assessment to determine the appropriate equipment based on the appliances and systems they want to operate during an outage.
Quality Home Products also supplies backup batteries, water-treatment equipment and other household systems. This broader home-service structure may appeal to homeowners who want continuing support from one established local provider.
Why Quality Home Products is good: Its long Houston history, Kohler specialisation and dedicated generator-service department provide useful local support after installation.
- Address: 555 East Airtex Drive, Houston, TX 77073
- Official website: https://qualitytx.com/
5. Premier Generators of Texas
Premier Generators of Texas is a locally operated company serving Dallas–Fort Worth, Plano, McKinney, Collin County, Denton County and Tarrant County.
The company supplies Generac residential and commercial standby generators. Its services cover consultation, equipment selection, installation, maintenance and repair. It also provides continuing support for customers after the initial installation.
Premier’s local concentration is useful because permitting, gas connections, homeowners association requirements and installation conditions can vary across North Texas municipalities.
Why Premier Generators of Texas is good: Its focused Dallas–Fort Worth coverage and continuing maintenance support suit North Texas homeowners who prefer working with a local generator specialist.
- Address: 1200 Placid Avenue, Suite 600, Plano, TX 75074
- Official website: https://www.premiergeneratorstx.com/
Frequently Asked Questions
Q: Does generator installation require a licensed electrician in Texas?
A: Yes. Non-exempt electrical work connected with residential backup systems must be completed by licensed Texas electrical contractors using licensed electricians. Customers should ask for the contractor’s licence number and proof of liability insurance.
Q: How is the correct generator size calculated?
A: Generator size should be based on electrical load, not simply the home’s square footage. The calculation must include the running power and starting power required by air conditioners, refrigerators, pumps and other selected equipment.
Q: Is natural gas better than propane?
A: Natural gas is convenient when the property already has adequate utility service. Propane can work well in rural areas without natural-gas lines, but it requires a correctly sized storage tank and fuel deliveries. The best choice depends on availability, generator size and expected runtime.
Q: How often should a standby generator be serviced?
A: Maintenance requirements depend on the model and operating hours. Generac generally specifies yearly maintenance or maintenance after a stated number of operating hours, whichever comes first. The owner’s manual and warranty terms should determine the final schedule.
Q: Can a portable generator be operated inside a garage?
A: No. The CDC says portable generators must be operated outdoors, more than 20 feet from windows, doors and vents. They should never be used inside a home or garage because they produce deadly carbon monoxide.
