What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Generator Supercenter of St. Louis

Home
United States
Chesterfield, MO
Generator Supercenter of St. Louis

Call Directions Website

💡 We’ll Never Leave You In The Dark! Generator Supercenter of St. Louis is the #1 Generac dealer, specializing in whole-home standby generators. Reliable. Trusted.

From installation to maintenance, we keep your power on—no matter the storm. Automatic. At Generator Supercenter of St. Louis, we provide turnkey home standby generator solutions designed for seamless, worry-free backup power. As the nation’s largest Generac dealer, we bring unmatched expertise, professional installation, and long-term service to homeowners across the St. Louis metropolitan area. We handle everything in-house—from consultation and installation to permitting, inspections, and warranty-backed maintenance. Our Generac-certified technicians and master electrician ensure every install is done right the first time. With our GenMonitor Program, we provide 24/7 remote monitoring and proactive maintenance, so your generator is always ready when you need it. Whether you’re preparing for unpredictable Midwest weather, safeguarding your family, or adding value to your home, we’re here to help. Stop by our Chesterfield Valley showroom or contact us today to get started!

10/30/2026

No tricks. Just power. Happy Halloween from Generator Supercenter of St. Louis. May your porch light stay on all night.

10/27/2026

"At 85 I am completely comfortable with it." Thank you, Ann! Adam and Dean love showing every customer exactly how their Generac works.

Want the same experience? Call us at (314) 949-6409.

10/23/2026

Last call. Glennon Card week ends Sunday, October 25. Have a quote from us and a Glennon Card? Send us a photo of the card and sign by Sunday for 20% off. (314) 949-6409.

No card yet? Get yours at https://glennoncard.org

Residential air-cooled Generac installs. 20% off quote total with an active 2026 Glennon Card. Offer ends Oct 25, 2026. Card photo showing card number + matching photo ID required. 10% off if financed. Not valid with any other offer.

10/22/2026

A $70 Glennon Card. 20% off your air-cooled Generac. On a $15,000 install, save up to $3,000. Your real price comes from a free site survey, so let's get yours on the calendar. (314) 949-6409.

No card yet? Get yours at GlennonCard.org. Proud to support and Cardinal Glennon Children's Hospital.

Residential air-cooled Generac installs. 20% off quote total with an active 2026 Glennon Card. Offer ends Oct 25, 2026. Card photo showing card number + matching photo ID required. 10% off if financed. Not valid with any other offer.

10/20/2026

Sign in October, run by winter. A typical job takes 6–8 weeks from signing to install day, and we handle the permits. Sign with your Glennon Card and save 20%. (314) 949-6409.

No card yet? Get yours at GlennonCard.org. Proud to support and Cardinal Glennon Children's Hospital.

Residential air-cooled Generac installs. 20% off quote total with an active 2026 Glennon Card. Offer ends Oct 25, 2026. Card photo showing card number + matching photo ID required. 10% off if financed. Not valid with any other offer.

10/20/2026

"They worked like a fine tuned machine." Thank you, Peggy! We'll pass your shout-out along to Dean, Adam and Mike.

Thinking about a home standby generator? Book a free site survey: (314) 949-6409.

10/18/2026

Then: digging through the junk drawer for a flashlight. Now: the lights come back on by themselves in seconds. A home standby generator watches the power for you and starts on its own.

10/16/2026

We're proud to be a 2026 Glennon Card business (), supporting Cardinal Glennon Children's Hospital. Glennon Card week starts today: your card gets you 20% off an air-cooled Generac home generator. Send us a photo of your card and let's get your quote ready. (314) 949-6409.

No card yet? Get yours at GlennonCard.org.

Residential air-cooled Generac installs. 20% off quote total with an active 2026 Glennon Card. Offer ends Oct 25, 2026. Card photo showing card number + matching photo ID required. 10% off if financed. Not valid with any other offer.

10/14/2026

Get the quote now. Have your card by October 16. Your free site survey gets you a real number, and your Glennon Card takes 20% off it. (314) 949-6409.

No card yet? Get yours at GlennonCard.org. Proud to support and Cardinal Glennon Children's Hospital.

Residential air-cooled Generac installs. 20% off quote total with an active 2026 Glennon Card. Offer ends Oct 25, 2026. Card photo showing card number + matching photo ID required. 10% off if financed. Not valid with any other offer.

10/13/2026

"Best experience I've had with a home upgrade in a long time." Thank you, Trebor! A call every week and everything handled start to finish is how every install should go.

Ready for backup power that starts on its own? Call (314) 949-6409 for a free site survey.

Address

17406 Chesterfield Airport Road
Chesterfield, MO
63005

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+13149496409

Website

http://generatorsupercenterofstlouis.com/

Alerts

Be the first to know and let us send you an email when Generator Supercenter of St. Louis posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.