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Verified Reviews for Generator Install pros in Henderson, MN

*The Angi rating for Generator Install companies in Henderson, MN 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 Henderson, MN 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 03, 2024

Find Generator install pros in Henderson

Avatar for Trapper Electric
Trapper Electric
4.4(
13
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Henderson, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Quick response and knowledgeable. Fair price"
New 200 amp
25 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Midwest Electric and Generator, Inc.
Midwest Electric and Generator, Inc.
4.1(
325
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Henderson, MN and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"The project was done within 3+ hours and everything was perfect. I'd recommend Midwest Electric and Generator, Inc. to others."
Health Club: New Pool Area
New Custom Home: Main House
Crew
Commerical Generator Install
Generac Guardian Series 20kw

+108

Recommended by74%of homeowners
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Avatar for Edgewood Electric
Edgewood Electric
New to Angi
Fixed Generator - InstallPortable Generator - InstallPortable Generator - Repair

Serving Henderson, MN and surrounding areas

Free estimates

Credit card accepted

Offers commercial services

With almost 30 years in the electrical industry I’ve seen and/or worked on almost everything so it gives me an edge and also is good for the customer.

4 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

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.

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.

The Henderson, MN 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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