What a fabulous company, from the first interaction (phone call) to see about having a Generac installed, to the estimate, and then the installation. Everyone at Penco are super and very professional. I look forward to many years of writing with them.
About Penco Electric & Generators
Penco Electric & Generators is a family-owned business that has been providing exceptional electric and Generac generator services in the greater Chicago area for nearly two decades. They prioritize excellence through quality workmanship, attention to detail, and customer satisfaction. Their skilled technicians are knowledgeable, courteous, and informative, providing services such as generator installation, maintenance, and repair, electrical installation, and smart home solutions.
Customers have praised Penco Electric & Generators for their professional, prompt, and efficient service. They appreciate the company's focus on excellence and their ability to explain the Generac generator system in detail, ensuring the customer's full understanding before leaving. The lead technician has been described as very professional, making the process seamless. Penco's work has included upgrading electrical services, installing a Tesla fast charger, and completing the work in a single day with thorough clean-up.
Recent reviews highlight the crew's punctuality and professionalism. The crew leader explained the installation process clearly and completed the work within the expected time frame. Customers noted that the technicians are friendly, polite, and problem-solve effectively, especially when servicing older homes. The installation process is described as efficient and thorough, with many customers confidently recommending the company for their electrical and generator needs.
Reviews
The crew of 4 showed up on time and ready to get to work installing a Generac Whole House Generator and Transfer Switch. It took them approximately 5 hours to complete the installation and clean up what little mess they left behind. All 4 of the crew were professional and courteous and explained each step of the installation and when asked, answered all our questions. I would highly recommend PENCO Electric for any of your electrical needs.
Excellent experience! We found Penco by way of using the Generac website to find an installer. From the first communication setting up the appointment, to the last call paying the bill, every encounter was professional and a pleasant experience.
When Orlando visited to assess our new home, we had immediate confidence in his knowledge and the ability for the Penco team to complete the job properly.
Our project included a service panel upgrade along with Generac install. The entire installation was carefully orchestrated to be completed in 2 days. We lost count at 10 different people from Penco participating in the effort.
Every single person was respectful, knowledgeable… read full review
Photos

Hours
Good to know
- on-site services
- accepts credit cards
- open to all
Location
7171 North Austin Avenue, Niles, IL 60714
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