Griffis Power Systems

Call Us Today! (417) 955-2657

Elevate Your Space With Our Garage Door, Generator, and HVAC Services


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Griffis Power Systems, based in Stockton, MO, is your trusted partner for all your generator, garage door, and HVAC needs. With a commitment to excellence and customer satisfaction, we serve both residential and commercial clients throughout the surrounding areas. Don't wait until the next power outage or garage door issue arises. Contact Griffis Power Systems today for expert advice, quality products, and unmatched service. 

Generator Sales and Service


As authorized dealers for Generac, Briggs & Stratton, Cummins, and Champion Power Equipment, we offer top-of-the-line generators tailored to your specific requirements. Our expert team not only assists you in selecting the perfect generator but also ensures seamless installation and reliable ongoing service.

  • Generac

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  • Briggs & Stratton

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  • Champion Power Equipment

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Garage Door Sales and Service


Elevate your property's appearance and security with our premium garage door solutions. From sales to installation, our skilled technicians handle every aspect with precision and care, ensuring your complete satisfaction.

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  • Briggs & Stratton

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  • Champion Power Equipment

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Complete HVAC Services


Whether you're in need of mini-split systems or comprehensive HVAC services, we've got you covered. Our team specializes in providing efficient solutions to keep your indoor climate comfortable year-round.

Expertise Across Makes and Models

At Griffis Power Systems, we pride ourselves on our extensive knowledge and experience. Regardless of the age or application of your equipment, we have the expertise to service and maintain all makes and models of generators, garage doors, and HVAC systems.

We Offer Both Residential and Commercial Services


While our primary focus is residential services, we also offer commercial solutions tailored to your specific needs. Whether it's for your home or business, you can trust Griffis Power Systems to deliver exceptional service and results.


For commercial and industrial clients, we provide specialized services necessary to meet testing requirements and ensure the reliable operation of your business. Trust us to keep your critical applications powered when it matters most.

Rely on Our General Contractors for Top-Quality Service


At Griffis Power Systems, we prioritize convenience and reliability for our customers. That's why we offer free estimates on all our services. Additionally, we provide 24-hour emergency services because we understand that power outages and emergencies can occur at any time. Whether it's day or night, our dedicated team is here to provide prompt assistance when you need it most. 


Also, unlike some other providers, we don't believe in implementing mileage fees. No matter where you are, you can count on us to deliver exceptional service without any hidden costs. 

About the Owner


Darren Griffis is, first and foremost, a family man who is involved in his church. He has been married for over 16 years and has three daughters. He serves on the worship team at his local church and helps lead the men's ministry.


Darren has 15 years of experience working in the industrial and commercial generator industry. He has received factory training from manufacturers such as Generac, Detroit Diesel, Cat, Kohler, Volvo, John Deere, Kubota, and Champion. He has the expertise and experience to service and repair all makes and models of generators regardless of the application.

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    Excellent company, great service and rates


    - Selby L.


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    Highly recommend Griffis Power Systems!!


    - Barber T.


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    Great job!


    - Bahr D.


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Need more information? Call us at (417) 955-2657 to speak with one of our experts.

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