Due to unprecedented demand, please call, e-mail, or chat to check on stock before purchasing. 

Generators For Sale By Colorado Standby

With a strong reputation built up by over two decades of top quality customer service and dependable, superior product quality, Colorado Standby has become the “go to” source for homeowners and business owners alike who are looking for trustworthy and reliable generators for sale. We cover all your generator needs from portable and standby to diesel and RV generators for sale. With one of the largest selections of generators for sale in Colorado, we’re your one stop shop for supply, installation, and maintenance for all generators.


Our experienced staff of Power Generation Professionals including Electrical Engineers, Factory Certified Technicians and application specialists are here to assure you of the best available equipment as well as installation and service. Our product lines include a wide variety of major manufacturers such as CUMMINS Onan, Kohler, Magnum-Generac, Kubota and HiPower/Yanmar with quality, reliability and overall best value as our mission. We supply customers large and small from RV generators and portable diesel generators to industrial power systems for Oil and Gas Companies, Medical facilities, Data Centers and Call Centers.


Residential Generators

No matter what part of the country you live and work in, it is always a good idea to have emergency provisions. When the power goes out, will you be left in the dark, or do you have an emergency generator backup system in place? For many homeowners, that means having a properly functioning, properly installed backup Cummins Onan generator you can depend on to perform when you need it. At Colorado Standby, we offer customers a large selection of standby generators, portable generators, and turnkey residential diesel generators, along with optional installation and generator maintenance


Industrial And Commercial Generators

Having a power outage for a medium sized business can mean a loss of thousands of dollars in revenue in a day. By taking care of the permitting, sizing, and location of electrical or gas backup, as well as factory warranty testing and preventive maintenance, our customers can rest assured they have a fully functional emergency backup commercial generator system in place. Whether it be a portable generator or standby generator, we’ve got you covered. We also offer the best selection of backup generators for sale and diesel generators for sale.


Colorado Standby is proud to include the US government and military, city and county municipalities, and companies in the commercial and industrial field among our list of happy customers. Not only are we a member of the Electrical Generating Systems Association (EGSA), and have been awarded the “Outstanding Generator Distributor Award” from a major manufacturer, but we are also a top Cummins Onan generator dealer. When you do business with us, we take it seriously.


Rv Generators & RV Solar

RV’s, vanlife, and skoolie’s are becoming increasingly popular these days. Whether it be an RV generator, RV solar, or RV generator installation, we can help you. With over 20 years of experience in the power industry, we know what to look for when it comes to powering your RV. Cummins Onan Generators are made for use in RV’s and are quiet and reliable. An RV generator or solar panel installation allows you to keep your lights, fridge, and other necessities powered while you camp off grid. If you’re looking for an RV diesel generator for sale, we've got you covered! With our extensive line of RV generators for sale we’re sure you'll find what you're looking for.


Diesel Generators

Check out our incredible selection of diesel generators for sale including: diesel power generators, Cummins Onan generators, and RV diesel generators. We are sure to have what you're looking for!


When bad weather or natural disasters threaten, we know you want to be prepared for any eventuality. By selling the best in standby generators, portable generators, diesel generators, RV generators, and commercial generators, we can ensure you’re prepared for whatever comes your way. When you come to us, you can be certain that you’ll only have to deal with one company to achieve a completely safe and reliable emergency backup system you can depend on in any situation.



Colorado Standby is proud to include the US government and military, city and county municipalities, and companies in the commercial and industrial field among our list of happy customers. Not only are we a member of the Electrical Generating Systems Association (EGSA), and have been awarded the “Outstanding Generator Distributor Award” from a major manufacturer, but we are also a top Cummins Onan generator dealer. When you do business with us, we take it seriously.


Check out our incredible selection of diesel generators for sale including; diesel power generators, diesel power generators, Cummins Onan generators for sale andRV diesel generators. We are sure to have what you're looking for!