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TRUSTED BY OLALLA, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon10
    Verified generator installs reviews

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

Avatar for Electrical Services, Inc.
Electrical Services, Inc.
4.8(
30
)
Portable Generator - Install

Serving Olalla, WA and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Small jobs welcome

"The initial contact was very courteous and helpful. They were able to give me an estimate by phone, which was reasonable. When I wanted to book, they got me scheduled quickly. And the electrician who came to do the installation was very nice and did a great job. Thank you."
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+1

Response time4 hrs
Response rate98%
1 neighbors recently requested a quote
B-More Electric
4.1(
103
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Olalla, WA and surrounding areas

Approved

In business since 2009

Free estimates

Customers say: True professional

"B-Moore was the only contractor out of the Home Advisor list who answered the phone and returned my voice mail questions. Installed switch panel for the back-up generator and two outdoor light. Demonstrated the hook-up process and walked through the house to make sure the system worked. Price was fair, I checked with a friend who is a contractor, and the military discount is appreciated. They will be the ones I choose for the next electrical work. Polite, articulate, and skilled crew."
Response time2 days
10 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cummings, Inc.
Cummings, Inc.
4.3(
282
)
Fixed Generator - Install

Serving Olalla, 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 Northwest Expert Heating, LLC
Northwest Expert Heating, LLC
4.2(
41
)
Fixed Generator - Install

Serving Olalla, WA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Aaron Jessen was fabulous! He installed a new control panel for us, rewired the generator for our entire house when power is out we simply flip the switch from our new control panel. Excellent communication and quality 😉"
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 GEORGE'S ELECTRIC, INC
GEORGE'S ELECTRIC, INC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Olalla, WA and surrounding areas

Approved

In business since 1970

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time12 hrs
16 neighbors recently requested a quote
Avatar for Mercurio's Heating & Air Conditioning
Mercurio's Heating & Air Conditioning
4.3(
12
)
Generator - Install - For Business

Serving Olalla, 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
Showing 1-10 of 37
Generator Install FAQs, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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. 

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The Olalla, WA homeowners’ guide to generator installs

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