Pro Listing

O J Mann Electric Services Inc.

Electricians in Waterbury, Connecticut
Ranked #5 in Waterbury | Grade B+
4.90 (728 reviews)

O J Mann Electric Services Inc.

Local team focused on standby generator installs, upgrades, and long-term maintenance with clear communication from office to field Serving homeowners across Waterbury, Connecticut.

O J Mann Electric Services Inc. business photo 1 - Electrical in Waterbury
O J Mann Electric Services Inc. business photo 2 - Electrical in Waterbury
O J Mann Electric Services Inc. business photo 3 - Electrical in Waterbury
O J Mann Electric Services Inc. business photo 4 - Electrical in Waterbury
Why Homeowners Choose This Business

Clear guidance on selecting the right generator, careful installation practices, and consistent follow-through on maintenance. Office staff keep customers informed, and technicians review system operation so owners feel confident using their equipment Local experience that helps homeowners across Waterbury, Connecticut compare a more region-aware provider.

Service Area

Cheshire, Waterbury, and neighboring Connecticut towns including Wolcott, Woodbridge, West Haven, and nearby communities.

Local Pro Business

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Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Maintains a competitive standing in this market.
  • Has more review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Licensing - CT Electrical License: 103686 (per company site)

Services Covered

  Electrical Services
  Lighting installation
  Standby generator installation
  Generator Maintenance
  GENERATOR SERVICES
  Generator Replacement
  Maintenance
  Transfer Switch Installation
  Generator repair
  Installations
  Electrical panel upgrades
  Repairs
  Home Backup Power
  Generac service
  Load Assessment
  Residential Electrician
  Preventive Maintenance

Services include residential standby generator installation, generator replacement and upgrades, scheduled maintenance and tune-ups, troubleshooting and repairs, transfer switch and panel work related to generator systems, and homeowner walkthroughs on safe operation.

Reviews

Customer Reviews

Ann G
My husband and I highly recommend OJ Mann Electric Services Inc. as they are truly a 5-star company! It is refreshing to call and speak with friendly, professional and helpful office staff! My husband and I received a very fair quote for…
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My husband and I highly recommend OJ Mann Electric Services Inc. as they are truly a 5-star company! It is refreshing to call and speak with friendly, professional and helpful office staff! My husband and I received a very fair quote for a generator upgrade, and the technicians who swapped out and installed our new generator worked very hard, were friendly, highly knowledgeable, professional, meticulous with the installation and hookup, went above and beyond with respect to working around our property, and my husband and I are so happy with the beautiful job they did so we now have peace of mind that our home will have continuous power during an outage!
Hector Lizcano
O J Mann electric services is a company exhibiting a respected experience. They answer your questions about generators, help to identify your needs and to decide the best generator. They are good at maintenance. They had efficiently served…
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O J Mann electric services is a company exhibiting a respected experience. They answer your questions about generators, help to identify your needs and to decide the best generator. They are good at maintenance. They had efficiently served our generator for several years. They offer a good warranty.
Jeffrey L
OJ Mann is one of the most reputable companies I have had the pleasure of dealing with. From the time they put my generator in almost 14 years ago, they have been responsive to any issue that I have had including things in the house that t…
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OJ Mann is one of the most reputable companies I have had the pleasure of dealing with. From the time they put my generator in almost 14 years ago, they have been responsive to any issue that I have had including things in the house that they never installed. They are fair and accommodating. I would recommend them to anyone.
Bstewart538 Stewart
OJ Mann came out to perform the first maintenance on our Generac Generator. Our technician Brad was very thorough and reviewed the workings of the unit. The service was very good and Brad answered all my questions so I feel much better info…
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OJ Mann came out to perform the first maintenance on our Generac Generator. Our technician Brad was very thorough and reviewed the workings of the unit. The service was very good and Brad answered all my questions so I feel much better informed. I would highly recommend OJ Mann Electric Services.
ELago A.
Since becoming customers of O.J. Mann Electric Services Inc. in 2022, we have consistently received professional and high-quality service. From installation to annual maintenance—most recently performed excellently by Josaint—their work has…
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Since becoming customers of O.J. Mann Electric Services Inc. in 2022, we have consistently received professional and high-quality service. From installation to annual maintenance—most recently performed excellently by Josaint—their work has always been competent and flawless. We strongly recommend this company.

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Special Offers

Emergency Service

Emergency service may be available for urgent issues.

Frequently Asked Questions

They install new standby generators, replace older units, and provide ongoing maintenance and tune-ups. They also service related components like transfer switches and perform troubleshooting and repairs.

The team reviews your home’s essential loads, panel configuration, and usage to recommend an appropriate size. They help balance comfort, budget, and fuel considerations so the system meets your priorities.

Yes, reviews indicate they maintain and service existing systems as well as units they originally installed. They offer routine inspections and can address issues discovered during service visits.

Technicians handle placement, wiring, and transfer switch connections, then test the system and review operation with you. The crew aims to keep the work area orderly and will walk you through startup, shutdown, and basic care.

Most standby generators benefit from at least annual maintenance to keep them reliable. Service typically includes inspection, fluid and filter changes as needed, testing, and confirming proper operation.
 Verified Listing

Opening Hours

  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details

Business Rating
4.90 (728 reviews) Pro Listing
Address
1484 Highland Ave Unit 4B, Cheshire, CT 06410
Business Type
Electrician
Website
http://www.ojmannelectric.com/
City Page
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