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Verified Reviews for Generator Install pros in Sisters, OR

*The Angi rating for Generator Install companies in Sisters, OR 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 Sisters, OR 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 August 07, 2026

Find Generator install pros in Sisters

Avatar for All Systems Electric, LLC
All Systems Electric, LLC
4.2(
7
)
Fixed Generator - InstallFixed Generator - Repair

Serving Sisters, OR and surrounding areas

Approved

In business since 2004

Warranties offered

Small jobs welcome

"The work was really good. Communication with them was not great. Cost double what I was estimated. Nice people though."
Response time2 days
1 neighbors recently requested a quote
Recommended by14%of homeowners
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All Systems Electric, LLC
4.3(
2
)
Fixed Generator - Install

Serving Sisters, OR and surrounding areas

Approved

In business since 2004

Credit card accepted

Offers commercial services

All Systems Electric LLC is the premier professional contracting company offering a wide variety of residential, service, and commercial electrical services to our clients in Central Oregon. We are known to pay exquisite attention to detail while making your satisfaction our number one priority.\n\nwww.ASEBEND.com\n\nPlease call us today to schedule your appointment.

Recommended by50%of homeowners
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Avatar for Tomahawk Electric
Tomahawk Electric
4.8(
25
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Sisters, OR and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Complicated old house wiring upgrade. Updated as requested, repaired multiple attic open splices. Work was time efficient and tidy."
400 amp service
Multi family
Response time2 days
Response rate85%
Recommended by95%of homeowners
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Avatar for Cascade Solar and Electric, LLC
Cascade Solar and Electric, LLC
5.0(
6
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Sisters, OR and surrounding areas

In business since 2022

Credit card accepted

Offers commercial services

"On time, great communication and explained process."
Response time1 day
Response rate94%
Recommended by100%of homeowners
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Avatar for Roth Home
Roth Home
4.6(
22
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Sisters, OR and surrounding areas

In business since 1988

Emergency services offered

Warranties offered

"The HVAC service technician was knowledgeable and knew right away what the issues were. He offered some great solutions for maintenance and cost savings until I can replace my system."
Additional Photos
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+10

Recommended by81%of homeowners
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Avatar for Timber Electric and Lighting Inc
Timber Electric and Lighting Inc
4.3(
4
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Sisters, OR and surrounding areas

In business since 2025

Free estimates

Warranties offered

"Showed up on time, installed new fan and fan switch! Was very professional and nice! Will hire again!!!"
Brasada Ranch
Response time2 days
Response rate100%
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Community Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Sisters, OR and surrounding areas

In business since 2019

Free estimates

Offers commercial services

Community Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. We hope too seeing you soon!

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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.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

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.

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

The Sisters, OR 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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