Top-rated generator install pros.

Get matched with top generator install pros in Greeley, CO

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Greeley, CO?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Greeley, CO

*The Angi rating for Generator Install companies in Greeley, 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 Greeley, 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 April 28, 2026

Find Generator install pros in Greeley

Avatar for Ross Electrical Contracting, LLC
Ross Electrical Contracting, LLC
4.8(
24
)
Portable Generator - Install

Serving Greeley, CO and surrounding areas

Approved

In business since 2016

Customers say: Quick response

"I own a commercial print company in Denver and I have been using Cameron for a number of years now"
Response time1 day
Recommended by100%of homeowners
Request Quote
Avatar for Precision Service Electric, Inc.
Precision Service Electric, Inc.
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Greeley, CO and surrounding areas

Approved

In business since 1994

Warranties offered

Small jobs welcome

"I hired them to install can lights in my family room. They did an amazing job! Everything I could have asked for, expertise, customer service, and an amazing result!"
Pop up countertop outlets
Pop up countertop outlets
Downtown Restaurant
Downtown Restaurant
New Kitchen Island

+12

Response time1 day
Response rate90%
53 neighbors recently requested a quote
Request Quote
Avatar for King Electric LLC
King Electric LLC
4.8(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Greeley, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"Fair pricing, Arrived on time, explained all work before starting, cleaned up any residual debris."
Response time1 day
Recommended by100%of homeowners
Request Quote
Redrocks Roof and Solar LLC
4.1(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Greeley, CO and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Really responsive and prompt, especially in the installation phase. We did have a couple of small hiccups, which in my mind a homeowner should expected on literally any remodeling project, and they were resolved quickly. Communication on final details like inspections could have been smoother, but overall the whole process was very clear, well managed, and well executed. Happy with the choice to go with Red Rocks."
Response time1 day
Response rate89%
Recommended by75%of homeowners
Request Quote
Avatar for Bright Spark Electrical Services LLC
Bright Spark Electrical Services LLC
New to Angi
Portable Generator - Repair

Serving Greeley, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Residential electrician with 7 years of experience handling thousands of projects, including panel upgrades, troubleshooting, and generator installation. Provides full-service residential electrical solutions.

2 neighbors recently requested a quote
Request Quote
Avatar for Mighty Plumbing Heating Air Electric, LLC
Mighty Plumbing Heating Air Electric, LLC
2.5(
11
)
Fixed Generator - InstallFixed Generator - Repair

Serving Greeley, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"The technician was extremely nice, prompt and professional during his visit. It was shocking to hear how much he said it would cost to remedy my boiler problems. We will absolutely get a second opinion before hiring for this job"
Mighty Van #2
Mighty Vehicles
Mighty Vehicles
Mighty Vehicles
Mighty Vehicles

+8

Response time10 hrs
Response rate90%
14 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 60
Generator Install questions, answered by experts

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

The Greeley, CO homeowners’ guide to generator installs

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

See all articles