Samuel Rojas was my Technician. He was new but GREAT. Called when on his way and I explained my problem, which I believe Jason, had already let him know too. Issue was resolved. Battery changed and all good now. Grasten installed my Kohler Generator in August 2019 and I have had no issues with the Company. Any and all their employees, from calling in for repairs or just normal maintenance, have been courteous and informative. Thank you Grasten!! And Jason too!!! read more

Thank you Jeremy for the excellent and professional service you provided. We are confident that we will enjoy our generator for many years! Thanks also for answering questions we had regarding maintenance! You went above and beyond and we truly appreciate that! read more

A quick review of the latest schedule maintenance call performed by Davin McGraw. Appointment was set up quickly by the service department. Davin called before arriving. He was prompt and his work was very professional. Would be glad to have him back for future service visits. Report was thorough. Great service call! read more

Great sales people. HORRIBLE hot mess in their office, scheduling, installing...ANYTHING that requires basic communication and coordination. Prepare to have them require you to be onsite at least 8 times to get the unit installed over the better part of a month (not just because an inspection that didn't pass, but because of sh&t like they are coming out to install a kill switch on the unit, the guy shows up after you take off work and plan to be home, and whoops...he "forgot" the kill switch at the office.) Or they don't call the correct phone number that's on the account so they are leaving a message that they are "coming by on Tuesday" with someone who will not be able to respond or be home. We asked them 3 times to change the phone number, but the old one was left in 3 other places in their system so...) So now the repeat inspection that was scheduled for tomorrow won't happen because the kill switch won't get installed today. "Well, can you come by tomorrow morning early so you can install the switch before the inspectors come?' "Hmmmm, you'll need to call the office for that, they handle the scheduling." Call the office? Hope you have carved out 20 minutes so in between being on hold 7 minutes at a time, your call can be picked up by at least 3 different people who don't know why you called so you get to explain it again. If it's an average day, you'll also get to hear their coworker on speaker phone talking to yet another irritated customer who is calling in to get help on the same kind of BS you called in about. Ahhh, at least it's not you. Grasten is partnered with Costco, so if you request a generator quote from Costco, this is who might come out. read more

Very professional service by Mr. Samuel Rojero. He explained the scope of the service in a friendly and clear manner. Introduced himself properly. When he finished asked if there were any questions unanswered. Everything very good. Thanks a lot. LFO read more

I signed a contract with this company a month ago. I was told that it would take a day or two to get the permit, then they would begin the project with one day for plumbing and one day for electrical. I paid them $4000 down payment and they have basically put me on ignore. When I could get the sales person to answer my texts, I was told that they were waiting on the permit. Today, I called the permitting office and they told me that there was never any permit at all. Even with confronted with her lies, Jana Sherman doubles down and ghosts me. I now have to file a complaint with the attorney general's office to try and recover my money. This may have been a decent company at one time, but not any more. BEWARE. read more

Adam did a great job and has great customer skills to go with his technical knowledge.

Grasten has been great to work with from the minute we called them last year. Always super professional and knowledgeable. They explained everything to us and their product is great. We just had an annual maintenance visit and it went beautifully. Highly recommend this company and their products. read more

Grasten Technician Samuel stopped by to complete the annual maintenance inspection on our generator. It was great timing because a couple days prior the starter failed during the weekly auto-run. Samual did a great job diagnosing the issue, replacing the starter and battery and completing the inspection. read more

Sam was fabulous! Give him a raise! Explained everything in detail and made great suggestions. Highly recommend!

The technician Mr. Murphy was excellent. He was very careful trying to find the problem with our Koehler Generator. He checked many items until he found the problem and solved it. We recommend his service. read more

The demand for generators is through the roof right now. We are part of that; we finally got tired of the power outages and wanted to invest in a generator. We signed a contract for a generator Grasten via Costco. Everything went pretty smoothly until the very last, most important step. We failed our inspection because of the way they installed the generator. There is a fire hazard, our gas has been disconnected and the project is currently filed as incomplete with the building department. We can't reach anyone at the company to discuss resolution. It's unbelievable that we can't talk to a human being. It's bad enough they did irresponsible work, but the insult to injury is not being able to resolve it in a timely and responsible manner. We invested in this project to save ourselves the hassle of power outages but instead we have a new hassle of dealing with the shoddy generator company. read more

The Grasten staff, at all levels, are phenomenal. Samuel Rojero, our tech , is professional, knowledgeable and most of all...patient. the office staff ( especially Carrie and Steven) are also responsive and caring. One of the best decisions we made in home improvements was choosing Grasten. Thank you to all! read more

Have had my Trasten for years. I recently had a problem, and they came out and fixed it under my warranty, and I was covered for repair.

Stephen arrived as expected, quickly found and resolved the problem. Prepaid service fee seemed strange, but it all worked out.

Excellent and professional service from Dayton on valve adjustment. Even in the rain took the time to readjust gaps after listening to start-up. Very impressed with his service and knowledge. Thanks read more

We had a bit of a scheduling issue, but that notwithstanding, the technician Dennis Brown did an excellent and thorough job, explaining each step of his scheduled maintenance process. I would be happy to have Dennis be the guy who does all of my service. read more

Jeremy was very informative and helpful when performing the maintenance on my generator. He answered all of my questions and also offered helpful hints. read more

Understanding that hurricane Beryl was a significant event, GRASTON totally ghosted us when our relatively new Generac generator stopped working after 2 hrs and left us without power for days. We left detailed messages every day to have someone at least contact us about fulfilling the maintenance agreement . It is now a week later and we have not heard from GRASTON. They may be the largest dealer in the area, but what good did it do to to pay for a maintenance contract when no one will respond with even a phone call or explanation. read more

The company has not communicated with us after several days of calling. Prior to emergency they had been very timely and responsive which led us to believe that we would be able to get support when we really needed it. Received a response immediately after the post, certainly wish that person also had time to call valued customers to provide information. read more

Samuel Rojero was Great, very polite & professional. He answered all of my questions and I am pleased with the quality of his work.

Dayton provided very good service on my two older generators. Grasten has serviced my units for at least 9 years and has never disappointed. Thanks, Dayton. Five stars. read more

We have had a brand new Kohler unit purchased and installed by Grasten since August and it has never worked correctly since install. Now we are at the end of October and nobody can get the unit fixed or even return a phone call. When I spoke to a manger in September, he said the technician would come out with a computer to diagnose the problem, THAT DIDN'T HAPPEN. The technician tried his best, but still does not work. This is a company that was recommended to us, but we will NEVER recommend them. Horrible customer service. They only want the sell, but then.... read more

I am very frustrated with the lack of response to my request for service on my generator, especially since I have a service contract that includes monitoring. The last time it ran was 9/11. On 9/18, the error "RPM Sensor Lost" occurred. On 10/2, I called and spoke with Kari, who sent me directions on clearing the error and manual running in case the error was a false negative. It did not run on manual, only giving a slight grunt. Since then, Kari has reported this to service numerous times, but no one has contacted me to address the issue. Since my unit is monitored, why has Grasten not detected that the weekly test run has not occurred for weeks? read more

David Martin came out and performed a scheduled maintenance check on my generator. He was courteous, fast and efficient. He gave us a heads up before coming and was on time. read more

I told the salesman that I was going to put a patio very close to where the generator was going to be. He measured another area and agreed to put it there. When they sent the guys to install the pad they put it in the original spot. When I questioned it they said that I had signed off on the drawings which I never did. The salesman never made the agreed upon changes. Now the patio is out because it can't go over a gas line. If you use them, double check everything and do no trust them. Their plumber cut the cable line and made no attempt to fix it. We were without internet for 3 days until Xfinity could make the necessary repairs. The guys that poured the pad did a good job and the guy that came for the startup was good. Once again, be careful. Cheaper isn't always better. Lowes should look into their subcontractors better. read more

Their salesman was hostile. Their inside sales person snippy and dismissive. They failed to send me a final paid in full invoice and I couldn't claim my extended warranty without it, nor itemize my sales tax. The comment they made was that the sales tax won't show on the invoice because they pay sales tax in bulk quarterly. Like people can't look up the sales tax rate in Montgomery County and calculate? They also failed to send me notification that I needed to apply within 60 days for my free extended warranty until January 31; but my 60 day period began November 30 when my generator was equipment was installed. read more

Sean Murphy from Grasten Technologies/ Conroe- came to do warranty work and annual maintenance. He was on time, very informative and so pleasant and professional. Thanks Sean for great service - you represent your company very well. read more

Great service. Technician called to tell me he was ten minutes away. Explained the issue as we stood by the unit. Repaired the switch and let me know he was finished and asked if I had any questions. read more

Sean fixed what two others did not. We are most grateful. I regularly recommend Grasten to folks that need them because they take care of their business and keep my generator running well. Thanks, read more

Sean was on time, very knowledgeable and efficient at determining the problem and fixing it in a timely manner.

During last Saturday's storms our our whole house get didn't start during a power outage due to a fault. We called the Grasten emergency number and Dennis Brown came out almost immediately in spite of the pouring rain. The problem turned out to be a bad starting battery that was still under warranty. Dennis replaced the battery and got us running. He completely checked out our generator before leaving. We were very impressed with his dedication and professionalism. read more

I had a startup appointment today and Travis Lockett did an amazing job explaining the different aspects of the generator in layman terms. He did a great job answering all our questions patiently. read more

Excellent service call today performed by Stetson!! Very knowledgeable and professional. Got me up to speed on every concern I had with the Generator. Thanks again Grasten on a job well done. read more

Dayton the Grasten Generac tech did an awesome job on my generator annual maintenance. Thorough and knowledgeable.

Jed was great in servicing my generator. He kept me informed during the service and answered all my questions. A new battery was installed . He also answered my questions regarding the Mobile link App I was having issues with. Thank you Jed! read more

Grasten installed our Generator about a year or so ago. That process went smoothly. Fast forward to the hurricane & after, when you actually need them. You cannot get help. Zero. Been trying for WEEKS to get someone on the phone, voicemail is always full, and even tried emailing. To say the customer service is lacking would be too much credit. It's non existent. We have several issues that need to be addressed, but how ??? I will never recommend this company to anyone. Very disappointed, and frustrated to say the least. 1 seems a bit generous. read more

If you value after-sales service, I would reconsider purchasing from Grasten Power. My experience has not been ideal. We are currently going on over two months with no resolution to my generator issue(s). Generac sent a technician to my home to support Grasten, and I was told the notes and follow-up would take place by Grasten. Three weeks go by, and no follow-up by Grasten. After many calls and unreturned messages, I finally got someone on the phone last week. When speaking to the representative, it was clear that the notes and actions from the Generac Technician had fallen on deaf ears. Given them the benefit of the doubt, I have now waited an additional week as I was told my service ticket would be elevated. Once again, no action was taken. I would not recommend Grasten Power!! read more

After 4-5 visits they finally resolved the issue. Started as an ATS communication issue, had to rewire low voltage controller then had to replace controller and ultimately yet another trip to properly set up weekly exercise. I know I missed the details of another visit but you get my drift. All good now but what a cluster. read more

Very engaging service rep who offered good insights and advice while servicing the unit. helped me get on the monitoring app and all the setup selections necessary to get the most out of it. read more