Get matched with top generator install pros in Berkley, CO

Q: What happens with the generator when the local power goes back on?

• <div><p>If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you&rsquo;ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.</p></div>

Q: Is it safe to run a generator continuously?

• <div><p>It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer&rsquo;s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you&rsquo;re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning. </p></div>

Q: Can you run a whole-house generator constantly?

• <div><p>Yes, whole-house generators run constantly for extended periods. Whole-house generators can run for longer periods of time than portable generators, but be careful. First, they may need regular applications of engine oil (as frequently as daily), depending on the engine design. Second, running constantly for several days will increase the wear and tear on the generator and shorten its lifespan.</p></div>

Q: How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you&rsquo;ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. </p></div>

Q: What’s the normal lifespan of a diesel generator?

• <div><p>You can expect a diesel generator to last for up to <b>30,000 hours of use</b>, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. </p></div>

There are 6 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Berkley, CO

*The Angi rating for Generator Install companies in Berkley, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Berkley, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 26, 2025

Reviewed in June 2025
By far the best plumbing experience we’ve had so far in Denver. They came out the same day, didn’t charge a visit fee and provided a competitive no-obligation quote. On top of that, Chris was fantastic to work with, super friendly and took the time to explain each step of the work prior to...
Rooter Guy, LLC
Request a quote
Reviewed in December 2024
Juan and his awesome crew just completed a fairly large poured, stamped and tinted concrete patio at my home. Their attention to detail, focus on completing on time and general great attitude made this project incredible. I could not more strongly recommend JDK!
JKD Welding & Construction
Request a quote
Reviewed in July 2024
We needed a whole home stand by generator with an automatic transfer switch and an upgrade to our electrical panel! Aim High Electrical did an outstanding job. The t far exceeded our high expectations. We highly recommend them for any type of electrical needs.
Aim High Electrical Services LLC
Request a quote
Reviewed in May 2023
Installed Shower Surround x 2. Reframed my back door and completed multiple drywall patches. General Design is the best in the business. Affordable. Communicates well and nothing intimidates this company. Willing to do whatever it takes to make sure quality is highest priority. I will be using...
General Design, LLC
Request a quote
Reviewed in May 2023
Guess I got lucky. Hired Jeremiah to weld a theft proof box on my RV trailer for my 4000 watt Firman generator. Couldn't be happier with his expertise and quality/design. I highly recommend him for just about any weld job. Exceeded my expectations.
Plan B Metal Works
Request a quote
Reviewed in July 2017
Judy was a pleasure to work with in designing the new driveway divider and planter beds. I knew generally the look I was going for but Judy was able to refine and improve upon my ideas. Miguel and the crew arrived punctually and worked quickly to remove the old landscaping and install the rock,...
TIMBERLINE GARDENS LANDSCAPING
Request a quote
Reviewed in September 2011
During the installation the servicemen set the motor to run to sensitive. During a huge snow storm last winter I was out of power for a few days because the generator wasn’t working. It really was of no use to us to have the generator. I called the company and they eventually came out to correct...
CDS Home Services
Request a quote