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TRUSTED BY VASHON, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon15
    Verified generator installs reviews

Top-Rated Generator install pros in Vashon - Updated Nov 2026

Avatar for Cummings, Inc.
Cummings, Inc.
4.3(
282
)
Fixed Generator - Install

Serving Vashon, WA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"They listen to what I want it done and didn't add any extras to what they were supposed to do. Did exactly as I wanted and needed. I would recommend this company far above all the other companies that install generators"
Coleman Furnace
Heat Pump Replacement
Heat Pump Install
Change out a Coleman Furnace
Boiler system

+1

Response time9 hrs
Response rate97%
236 neighbors recently requested a quote
Avatar for Rock Electric
Rock Electric
4.2(
13
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair

Serving Vashon, WA and surrounding areas

Approved (Corporate)

In business since 2009

Free estimates

Small jobs welcome

Rock Electric LLC, is a family-owned and operated company based in Seattle, Washington that services the entire Puget Sound area. We provide electrical services for our customers with their best interests and safety in mind. We specialize in Residential Remodels, Outdoor Living Spaces, Hot tub and Generator, Panel Replacements, Electric Car Charging Station Installation and more.\n\nYour electrical system is the heart of your house; you can feel safe in knowing that our technicians are working for you and your family to ensure you're not left in the dark. Here at Rock Electric, customer safety and satisfaction are our top priorities. Our electricians strive to show up on time, maintain a tidy job site, perform high-quality work, and are prepared to walk you through the entire process, from beginning to end. We are trustworthy electricians, dedicated to excellence and customer care.

Entertainment System & Bromic Heaters
Entertainment System & Bromic Heaters
Entertainment System & Bromic Heaters
Entertainment System & Bromic Heaters
Entertainment System & Bromic Heaters

+47

Response time12 hrs
Response rate99%
268 neighbors recently requested a quote
Avatar for Northwest Expert Heating, LLC
Northwest Expert Heating, LLC
4.2(
41
)
Fixed Generator - Install

Serving Vashon, WA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"They came out the next day to do the estimate. They had an opening the following day and we were so pleased with the installation team. A+ rating"
COLEMAN 14 SEER Air Conditioner
Outdoor Unit
TRANE XV 80
In the Process of Installing Ac
9k indoor unit

+22

Response time11 hrs
155 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Mercurio's Heating & Air Conditioning
Mercurio's Heating & Air Conditioning
4.3(
12
)
Generator - Install - For Business

Serving Vashon, WA and surrounding areas

Approved (Corporate)

In business since 1992

Credit card accepted

Customers say: Quick response

"Very responsive and professional on our first visit .Technician Charles Monday gets a five star review based on his thoroughness and professionalism .We have two old AC units that are not functioning well as they were installed when we moved to the house 21 years ago .Mr Monday came on time and spent hours in the attic taking care of a leak and cleaning the furnace and filters and motor ,and we are grateful .He explained each step and consulted with me and took photos to document the problems encountered .Whereas we are contemplating replacement due to the age ,we feel we got our problem taken care of until the nest step which is a replacement of our units .I was impressed with his knowledge base and how he took so much time in making sure the AC was in running condition when he left ."
Gas Furnace Replacement
Gas Furnace Replacement
Ductless Heat Pump
Heat Pump Installation
Furnace Replacement

+2

Response time7 hrs
12 neighbors recently requested a quote
Recommended by90%of homeowners
True Knight Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Vashon, WA and surrounding areas

Approved

Free estimates

Credit card accepted

True Knight Electric LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you! \n

Avatar for Washington Generators
Washington Generators
4.5(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Vashon, WA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"Excellent. Both installers, gas and electric, were superb. Prompt, arrived as promised, very professional, friendly, and thorough. Started at 7:30am and completed by 4pm. Set up cement pad, installed gas piping, new transfer box, etc..... showed how it’s works."
Gas piping and electrical conduit
Gas piping and electrical conduit
Generac Automatic Transfer Switch
Gas piping and Electrical conduit
Completed Generator installation

+31

Recommended by90%of homeowners
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Generator Install FAQs, answered by experts

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

The Vashon, WA homeowners’ guide to generator installs

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