Located in Oxford, CT


Our talented and professional team knows all they can about generators, so when you need repairs or a full replacement, we’re the people to call. We also do other work including electrical, plumbing, excavation, concrete work, and propane tanks and service. If you’re interested in generator rentals, give us a call!

We proudly service Darien, Westport, Wilton, Weston, Norwalk, New Haven, Greenwich, Cos Cob, Stamford, CT & surrounding areas. With our 24/7 emergency services, we’re always ready to help. Call us when you need us!

Brands We Trust

Select a Whole Home Generator

Having a generator that works property for your home is essential. Severe weather conditions or power outages can be scary to families, leaving them without power for hours or even days at a time. To ensure you never have to worry about going without power for long periods of time, you need to think about buying a whole house generator.

Whole Home Standby Generator
Whole Home Standby Generator

Standby Generator Service in...

Learn About the Costs of Owning
a Whole Home Generator

Here at A&J Generator and Equipment, we’re ready to answer every question you may have on the different factors with your generator. A whole house generator varies in price; based on the requirements you may ask for, the cost is bound to differ. Size, manufacturer, and installation are some of the aspects you need to take into consideration when you decide to invest in a house generator. If you’re researching the best type of generator for your family, it’s best to start with the size you wish and/or need.



What We Do

  • Sales and Installation of new and used generator sets
  • Sales and Installation of new and used transfer switches
  • Authorized sales and servicing dealer for Hi Power Generator sets, Eaton Generator sets, Generac, Briggs & Stratton, GE Generator sets, Zenith Transfer switches and Eaton Transfer switches
  • Servicing of all other makes and models of whole home generators
  • Maintenance contracts to keep customers’ generator systems in good condition
  • Load bank testing including a written report for generator sets of all sizes
  • We do repairs and installations no one else wants to!
  • We have our own facility for customers of tow-behind style generators to come in for service and repairs of all makes and models.


How do I correctly size a generator for my home?

When determining what size generator you will need, it is important to imagine your home without power. Some power outages are short and only last a few hours, while some could last for days or weeks. It is important to think about your day to day life and what is your family going to need to have access to during a power outage. There are smaller generator products available to cover just the essential circuits in your home. There are also larger systems that can cover virtually all of your home. Most generators have a transfer switch that contains a pre-determined number of circuits based on your generator’s power rating. Each circuit directly matches a circuit on your circuit breaker panel. This will provide direct electricity to your pre-determined circuits. Larger units that provide power to the whole house will ensure that no circuit is left un-powered, so all appliances and electricity in your house should be available every minute of the power outage.

Can I install a generator myself?

It is not recommended to install a generator by yourself.  While some generator systems may come prepackaged and pre-wired with thorough installation instructions, it is still recommended that a generator specialist or licensed contractor installs your unit. There are state, local, and national electrical codes that generators, especially non pre-wired or larger systems, need to follow. Working with a generator specialist or contractor is the best way to ensure that you are following those codes. Also, because generators are electrical systems, it is much safer to have an experienced professional handle the installation.

Where can I buy a generator?

Generators can be purchased from most home improvement retailers, or through any local generator specialist. It is recommended to purchase your generator through a generator specialist, as they can provide expertise in the generator selection in addition to installation.

Can I fix an error code myself?

Most error codes cannot be diagnosed and fixed on your own. If you are not able to determine what is causing your error code, you do not know how to fix it, or your efforts to fix the error code have been unsuccessful, call in a generator repair technician. Your technician will have knowledge of your generator and the error codes and will be able to diagnose and repair any potential issues.

How often should I schedule generator maintenance?

It is recommended that you have your generator unit serviced approximately every six months or for every 100 hours of generator operation. This maintenance will help prolong the life of your generator and make sure that any issues with the generator are resolved before a power outage exposes the problem.

Read Our Reviews

Chris Linford lChris Linford l
15:03 17 Sep 21
Professional, timely, and courteous service from initial contact onwards. Joe the technician was great. Reasonable prices. Happy we found them and would recommend.
Dr Tom FaillaDr Tom Failla
22:34 07 Jun 21
Tip notch techs. Straight shooters... tell it like it is. Keep good records, reliable, responsive and refreshing to know these hardworking, enterprising doers that get the job done. . .
Sam ShawSam Shaw
15:58 20 May 21
A & J Generator & Equipment helped us out last year during the storm and urgently fixed the issue with our generator. Sandra is simply AWESOME!!! She is super responsive, vey nice and professional and got someone out to immediately to fix our issue. She is a pleasure to work with and made the process easy for us. We also worked with the company (Tony and his team) to move our generator this year. They did a terrific and clean job. I will be referring them to my friends and family. Thank you Sandra and Tony! It is a pleasure working with you.
Christina psarasChristina psaras
16:29 23 Sep 20
With all the crazy weather we’ve been experiencing, especially Connecticut of all places receiving hurricane strength wind, it was time to get prepared. My family and I purchased a generator from A&J last week. Tony and his team came, installed the generator, made sure it was functioning properly, squared up with us and then left. Everyone was extremely professional and friendly, made for a very easy experience. Now I won’t be sitting in the dark next storm. Thanks guys! Great work!