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Avatar for New Phase Electric, LLC
New Phase Electric, LLC
5.0(
7
)
Fixed Generator - InstallPortable Generator - Install

Serving Columbine, CO and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Installed a 12 circuit generator cutover panel. Works great. Would have preferred the cables to be behind the drywall. But a solid job that passed Jeffco and Xcel inspections easily."
Brent's house
custom house
Custom light's
custom lights
Govee lights

+1

Response time2 days
Response rate100%
7 neighbors recently requested a quote
Avatar for Productive Electric, LLC
Productive Electric, LLC
4.9(
14
)
Generator - Install - For Business

Serving Columbine, CO and surrounding areas

Approved

In business since 1992

Free estimates

Credit card accepted

"The electrician, Tom, and the Service Manager, Bill, were exceptionally friendly and worked hard to figure out how to accomplish everything we wanted and needed. They also have amazing value for the work."
Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JL ENGINEERING SERVICES LLC
JL ENGINEERING SERVICES LLC
5.0(
17
)
Portable Generator - Repair

Serving Columbine, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Back in 2024, Jesus and his team did a phenomenal job adding a new circuit/outlet in our garage for our new chest freezer and outlets with USBs for our e-bikes and other gear. He came in the morning to talk about the project and give and estimate and they were able to complete the work same day even though it was a bigger project than I’d originally described in my request. He explained the options well and was able to put everything exactly as we wanted. Very happy with how that project turned out. This year, we hired Jesus’s team again to install new light fixtures in our bathroom (vanity lights and sconces) and move some outlets. Again he and his team did a great job and were lovely to work with. We’ll be reaching out for more assistance with our bathroom reno."
Avatar for TORQ Electricians
TORQ Electricians
4.8(
19
)
Portable Generator - Install

Serving Columbine, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

"I’m extremely pleased with the work Jon from TORQ Electricians recently completed in my home. This project was much larger than his visit the week before, and once again he delivered outstanding results. He replaced switches and outlets throughout the house, many of which had begun to fail due to age, and the upgrades have given us real peace of mind when it comes to safety. Jon also made several thoughtful recommendations—installing dimmer switches in the kitchen and study, and suggesting a different dimmer style for our living room ceiling fan. These changes have noticeably improved both the functionality and the atmosphere of those rooms. He even identified and replaced a GFCI breaker in the panel that wasn’t up to code, ensuring everything is now safe and compliant. The work has refreshed the look of our interior, and we couldn’t be happier with the results. We’re very glad we chose TORQ Electricians and highly recommend Jon to anyone needing professional, reliable electrical work"
20 Amp Circuit
Circuit
Electrical Panel
Outlet
Power Stake

+9

8 neighbors recently requested a quote
Recommended by42%of homeowners
Avatar for DN Electric LTD
DN Electric LTD
5.0(
7
)
Portable Generator - Install

Serving Columbine, CO and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

DN ELECTRIC LTD proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! \n

Electric
Basement receptacles
Basement receptacles
Basement receptacles
Basement receptacles

+1

8 neighbors recently requested a quote
Avatar for Mr. Electric of Littleton
Mr. Electric of Littleton
4.6(
11
)
Portable Generator - Install

Serving Columbine, CO and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Our licensed electricians at Mr. Electric provide residential and commercial electrical repair and installation services. Schedule a nearby electrician today for electrical panel replacements, whole-house rewiring, EV charger installations, ceiling fan replacements, and all other general electrical needs. We accept credit cards, checks, and offer great payment plans options as well. Call now to book your appointment!

Can Lights
Response time10 mins
Response rate100%
Recommended by16%of homeowners
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Generator Install questions, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Columbine, CO homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.