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Customer reviews for Generac 18kW Home Standby Generator with 200 Amp Transfer Switch for
Generac 18kW Home Standby Generator with 200 Amp Transfer Switch
4.3 out of 5 stars
stars
58 ratings58 reviews
  1. 5 stars78% (45)
  2. 4 stars5% (3)
  3. 3 stars3% (2)
  4. 2 stars0% (0)
  5. 1 star14% (8)
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Showing 11-20 of 58 reviews
Sep 11, 2026
Reviewer name: Dave 1956
5 out of 5 stars
5 out of 5 stars review

Insurance policy for the future

I purchased this generator in July and the installation was completed in August. The installation was very professional. I would recommend One Way Electric in Phoenix for the installation.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Jul 4, 2026
Reviewer name: Satisfied Customers
5 out of 5 stars
5 out of 5 stars review

Generator Upgrade

This is our second Generac generator because, after 19 years with our first one, we wanted to upgrade to one with more current features/functions. Our first one was purchased in Sept. 2007. It gave us optimal, quality, and dependable service. It is still working today, in another household, with a family whom we gave it to. We look forward to and are confident that we will have the same level of quality service with our recent new upgraded generator!

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
May 22, 2026
Reviewer name: Dezz
3 out of 5 stars
3 out of 5 stars review

Something is Wrong with it

I bought this a month ago and it’s still not working properly. It runs for 15 seconds and then shuts off. After five cycles of this it stops altogether. They are still trying to figure out the issue. I am happy to review again once it works properly.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Jul 4, 2026
Reviewer name: NMOD13
5 out of 5 stars
5 out of 5 stars review

Hurricane Prepared

4 years after Hurricane Ian it was time to replace a portable 5kw generator with a whole home generator. We will now be able to have the entire house on standby power should another major outage occur. Being familiar with the Generac company based in Wisconsin, this was the only generator considered.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Jul 22, 2026
Reviewer name: AngryDBA
5 out of 5 stars
5 out of 5 stars review

Good generator for the entire house.

Have had this generator for a year. Had to have a faulty emergency switch replaced (under warranty). I've put about 11 hours on it. It's able to power everything in my 2500 sq/ft house (A/C, Heat, oven, dryer) all appliances with no issues.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Jul 24, 2026
Reviewer name: JimJ
5 out of 5 stars
5 out of 5 stars review

Reliable Power

Just completed year two annual maintenance. Generator has activated reliably 5 times over the past two years and powered my home without any issues. Propane usage seems very efficient.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Apr 7, 2026
Reviewer name: Buzz2684
5 out of 5 stars
5 out of 5 stars review

Peace of Mine

This is what we needed for complete peace of mind. Starts automatically (we don't have to be home), notifies us of status, and let's deal know if there are any issues so they can plan to service the unit (we don't need to figure it out and call them). Keeps our life simple and worry free.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Aug 17, 2026
Reviewer name: Bamafan
5 out of 5 stars
5 out of 5 stars review

Bought and installed in the last month , gives us piece of mind , as well as the ability to work from home without interruption.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
Sep 1, 2026
Reviewer name: JP in Cookeville
1 out of 5 stars
1 out of 5 stars review

Poor Product

Generator was installed and does not work. Installer is doing their part to troubleshoot. Extremely disappointed with the product, not the installer.

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421
May 22, 2026
Reviewer name: Wow1
4 out of 5 stars
4 out of 5 stars review

Right out of the box!!!

I had installed Apr 22 2026 bad control panel finally working properly May 20 2026 a lot of money for a product to need repair right out of box. Not sure about its quality guess we'll see

Review from generac.com
Helpful?2MFUGGDGXJBG19966162421