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Verified Reviews for Generator Install pros in Granby, CO

*The Angi rating for Generator Install companies in Granby, 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 Granby, 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 September 27, 2025

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Avatar for Electrical Innovations LLC
Electrical Innovations LLC
New to Angi
Portable Generator - Repair

Serving Granby, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Electrical innovations provides electrical safety for families homes, and peoples businesses. We are a fully licensed and insured company who’s been in business since 2010. We are a family owned and operated business who strives for making families happy and satisfied returning customers.

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Avatar for Best Grand Electric
Best Grand Electric
5.0(
15
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Granby, CO and surrounding areas

In business since 2023

Emergency services offered

Warranties offered

"I am a contractor and have not been impressed with others work I’ve hired before so when I heard about best grand electric I thought I would give them a try and I was very impressed."
assorted projects
assorted projects
assorted projects
assorted projects
assorted projects

+3

Response time3 hrs
Response rate97%
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Avatar for Breeze Electrical Solutions
Breeze Electrical Solutions
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Granby, CO and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"They showed up on time every time, they never over charged for work. They took on extra work outside of why they were originally called. Very friendly, professional and clean. Also willing to teach."
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+4

Recommended by100%of homeowners
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Montoya Electric Colorado
0.0(
1
)
Generator - Install - For Business

Serving Granby, CO and surrounding areas

In business since 2011

Free estimates

Emergency services offered

Montoya Electric Colorado can take care of all your Commercial & Residential Electrical wiring needs from new construction and remodel to services, repairs, additions, and emergencies, big and small. Reasonable rates, friendly service, professional results. We also provide custom and unique services from fabrication to installation of whatever unique kind of thing that you can imagine. Our Master Electrician, Mark Montoya, also has an MS in Mechanical Engineering with considerable experience in product and machine design and prototyping. From one of a kind hand made light fixtures to that custom machine or mechanism that you always wanted built, Mark can create a reality out of your vision. I easily serve Denver Metro and the Front Range Mountains plus west to Vail in the I-70 corridor. Custom work by phone, internet, and shipping is also available.\n\nMark Montoya\nMSME Purdue University 1997\nColorado Master's License # 30420\nColorado Contractor's License # 8229

Recommended by100%of homeowners
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Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

The Granby, CO homeowners’ guide to generator installs

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

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