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Find Generator install pros in Kent

Avatar for First Choice Electrical, LLC
First Choice Electrical, LLC
4.6(
157
)
Fixed Generator - InstallPortable Generator - Install

Serving Kent, WA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"From start to finish, this crew did an outstanding job of making sure my generator panel and switch were placed logically and cleanly. I really appreciate the time they took, especially Miguel who walked me through each step. Highly recommend."
Jeff measuring for panel layout
Lead Installer Jordan Prepping layout with Jeff
Roof-top picture
Solar with Energy Storage
Solar with Energy Storage

+19

Response time2 days
Response rate96%
56 neighbors recently requested a quote
Avatar for Reign Electric
Reign Electric
5.0(
11
)
Fixed Generator - InstallPortable Generator - Install

Serving Kent, WA and surrounding areas

Approved

In business since 2024

Free estimates

Customers say: True professional

"I recently had the pleasure of working with Reign Electric, and I could not be more impressed with their service. From start to finish, their team demonstrated exceptional knowledge and efficiency. They handled all the wiring and lighting installations in my home with a level of professionalism that is hard to come by. Every step of the process was seamless, and their expertise was evident in the quality of their work. They not only completed the job on time but also ensured that everything was done to the highest standards. If you are looking for a reliable and skilled electrician, I wholeheartedly recommend Reign Electric to any of my good friends or family. They truly set the bar high!"
Response time1 day
3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Jagg Services
Jagg Services
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Kent, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

Jagg Services proudly serves Western Washington with top-quality HVAC, electrical, and general contracting services. Our expert team ensures your home or business stays comfortable, efficient, and safe. We specialize in heating and air conditioning systems, electrical installations, and reliable home generators.\n

Project Photos
9 neighbors recently requested a quote
Avatar for Black Hills, Inc.
Black Hills, Inc.
4.5(
605
)
Fixed Generator - Install

Serving Kent, WA and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"All staff were professional and well qualified. Friendly and on time both install dates. Technicians and electricians are well qualified and very knowledgeable in thier fields. All permits are handled by Black Hills. No surprise cost issues. Paid what was quoted. Thanks Black Hills for a very pleasant install."
Furnace
Heat Pump
Heat Pump
Furnace
Mini Split

+12

Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
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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.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

The Kent, WA homeowners’ guide to generator installs

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