Grasten Power Technologies

Reviews

• AL

  Alan Lipman

  3 days ago
  5.0
  Brandon was extremely helpful. He explained what is covered in the maintenance agreement and he cleaned the interior and exterior of the generator. He also asked me if I knew how to simulate a power outage to test the switch. I had that as a question, myself.
• JS

  Jonathan Storms

  Feb 19, 2026
  5.0
  I cannot recommend Grasten Power Technologies highly enough. When my whole-house Generac generator stopped functioning correctly, their technician, Adam, responded immediately. On the first service call, Adam quickly and accurately diagnosed an engine failure. Grasten seamlessly handled the entire warranty claim on my behalf, procured a brand-new engine direct from the manufacturer, and promptly scheduled the replacement. During the second visit, Sean and Christian arrived right on time and executed the complete engine swap in record time. They ran full diagnostic tests to ensure flawless operation. What truly set this experience apart was the exceptional attention to detail: when I returned from work, the area around the generator was actually cleaner than how I left it. Sean and Christian even cleaned the interior behind the panels, making the entire unit look brand new. I am absolutely flabbergasted by this elite level of service. Going forward, Grasten is my exclusive provider for any Generac maintenance and repair. I have complete confidence in their capabilities and will be recommending Adam, Sean, Christian, and the entire Grasten team to all my friends, family, and neighbors. I cannot thank them enough!
• RG

  Rex George

  Feb 18, 2026
  5.0
  Dennis Brown was spot on with his arrival and resolution of the problem I was having with my generator. He quickly fixed and had the system back ready for service. I have my unit and units at both of my daughter's houses and all from Grasten. Always professional.
• SG

  Steve Greer

  Feb 17, 2026
  5.0
  We have been very pleased with the service that Grasten Power Technologies has provided with our Kohler back up generator. All the technicians have been very helpful and answered all of our questions. I look forward to having them take care of our service needs in the future.
• BT

  BARBARA TAYLOR

  Feb 9, 2026
  1.0
  Slow to respond. Got a contract with a quote to move a unit. I agreed, signed and paid half the of the quoted $4425 as a down payment. They never measured anything prior to arriving- just showed up after many delays. Just as the workers were finishing, I got a call and was told that I owed an additional$1400 because the job involved a longer distance than anticipated. Again, no pre-measuring, and was never sent a revised contract total. I would say that dealing with Graston was an expensive, and a bit of a nightmare...very unprofesional!

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