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Verified Reviews for Generator Install pros in Frederick, CO

*The Angi rating for Generator Install companies in Frederick, 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 Frederick, 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 March 04, 2026

Find Generator install pros in Frederick

Avatar for Epic Solar & Electric LLC
Epic Solar & Electric LLC
4.9(
44
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Yuri and his team did a fabulous job on upgrading my electrical panel and installing a whole house generator. Their work was meticulous, precise and clean and the inspector was very impressed with their work. The quote for the bid was fair, honest with no headgames or BS and this is important for women. I am glad I hired this company and they do guarantee their work."
Main service panel and meter
Response time6 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Amp'd Up Electric LLC
Amp'd Up Electric LLC
5.0(
38
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Avery installed two ceiling fans in my older home that I was updating. He was very efficient and knowledgeable in his work. I would definitely recommend him and will use him for any future electrical needs!"
Mountain Work
Mountain Work
Mountain Work
Mountain Work
Mountain Work

+12

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Ross Electrical Contracting, LLC
Ross Electrical Contracting, LLC
4.8(
24
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2016

Customers say: Quick response

"I don't usually write reviews because it's time consuming and I often don't find providers to be exceptionally good or bad - but I definitely read them - so consider this worth double weight: I thought Mr. Ross did a wonderful job explaining the full extent of the project, and how he would handle the details. Super knowledgeable! He got all the permits, fixed the roof patch that was needed, and cleaned up the mess. His crew was clean cut and on-time, and he stuck by his quoted price. I will hire him again for a shed electric project I have coming up. Great work, Ross stands by his name."
Response time1 day
Recommended by100%of homeowners
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Avatar for EV Plug Pros, LLC
EV Plug Pros, LLC
5.0(
18
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Very professional, absolute seamless experience. Completed the installation exactly the way I asked for it. Kelly and Alyse are awesome - highly recommend EV plug pros."
EV Home Charger Installs
Client with Home EV Charger
Client with Home EV Charger
Client with Home EV Charger
Chargepoint Home Charger

+9

Response time3 days
Response rate90%
1 neighbors recently requested a quote
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Avatar for MightyBee Electric, LLC
MightyBee Electric, LLC
4.5(
292
)

Serving Frederick, CO and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"What a terrific experience we had with Mighty Bee Electric! Martin came the next day after we called. He was on time, clearly knows what he is doing and fixed everything for the estimated cost. And there was no upselling! I will definitely call him for any future electric work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Response time1 day
Response rate100%
1 neighbors recently requested a quote
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Z-Man Inc.
4.9(
33
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Jonathan with the help of rudy and his team installed my 10,000 watt electric heater in my garage. Now i can smoke cigars and enjoy the football game without freezing. Truly a great addition to my house. They are my go to contractor for any additions I want in the house. I would highly recommend them"
Response time1 day
1 neighbors recently requested a quote
Recommended by87%of homeowners
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Generator Install questions, answered by experts

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’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.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Frederick, 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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