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    Verified generator installs reviews

Find Generator install pros in Bothell

Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,637
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Bradley knows what heâ  s doing. I originally hired Seatown Electric to come out and install an in-house backup generator. Bradley came out to install the generator and found that we had some pretty dangerous wiring at the panel and it was not nearly up to code. I was in the HVAC industry 30 years ago and the mechanical theory in which Bradley explained made complete sense. Bradley finished up the generator install and he gave me a bid to fix the issue. The same day, we called Seatown and we made an appointment for him to come back and do the work. Bradley and Austin showed up at 7:50am, 10 minutes before the job started. They met with me and got started. I always like to look at service techs trucks to see what kind of person is working on my home. Bradleyâ  s truck was immaculate. Extremely organized, very clean and it looked like a service truck that was on the DeWalt showroom floor. The instant I saw Bradleyâ  s truck, I knew his work was going to be perfect. The professionalism from both Bradley and Austin was outstanding. They worked extremely hard for almost 11 hours that day. They didnâ  t mess around, they had their mind set on the job and I was extremely impressed at their work ethic. We have been through 4 major renovations between our two homes and have used a myriad of different contractors, but never have we had a team close to as good as these guys. I would put every apprentice with Bradley, he knows what he is doing. Seatown is lucky to have this guy, they better take care of him. Great job guys!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
Recommended by93%of homeowners
Avatar for Smart Electric, Heating & Air
Smart Electric, Heating & Air
4.9(
76
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Based on Angi, Yelp and Google reviews, we chose a couple of well-reviewed, Generac-certified companies to come out for estimates for installing a whole-house generator. Given the amount of house/property that we wanted to power (our house, septic, well, mother-in-law dwelling, etc.), both recommended the 26kW and both were about the same price for installation. But we liked Joseph's knowledge, honesty and responsiveness to our email/text questions afterward, so we went with Smart Electric. Lead electrician Keith and crew were prompt, friendly and professional throughout the installation on the day we had scheduled. A wiring issue required Keith to return for several Saturday visits, and we appreciated his communication and determination to make sure we were completely satisfied. We would definitely call Smart Eclectic again."
49 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for McCarthy Electric & Technologies, LLC
McCarthy Electric & Technologies, LLC
4.9(
40
)

Serving Bothell, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Small jobs welcome

"Our home had inadequate electric service. McCarthy Electric provided a bid to install 200 amp service to support our growing needs. My interactions with their team has been the most satisfying experience I have had with a service provider. The service was upgraded per the bid with no drama, in a timely fashion. I was kept informed of important developments in a courteous and professional manner. I will be a return customer for any future electrical needs."
Response time1 day
Response rate100%
31 neighbors recently requested a quote
Avatar for Skyline Electrical Services LLC
Skyline Electrical Services LLC
4.8(
51
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I had told them I would be buying an EV and they said to give them a ring when I was ready to install the charger. Bought the car on Saturday, called them on Monday, installed on Thursday with no drama, apparently excellent workmanship, and in a timely manner. They were even able to do it without disturbing our internet access despite having to move breakers around."
 Electric Vehicle
 Electric Vehicle
 Electrical Panels
 Electrical Panels
 Electrical Panels

+11

Response time3 days
Response rate100%
8 neighbors recently requested a quote
Avatar for HEPHAESTUS ELECTRIC LLC
HEPHAESTUS ELECTRIC LLC
5.0(
9
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Panel Replacement
Tesla Charger
Whole home ATS
Garage lights
Response time7 hrs
Response rate93%
8 neighbors recently requested a quote
Avatar for Mauro Electric, Inc.
Mauro Electric, Inc.
4.8(
9
)

Serving Bothell, WA and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

Mauro 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.\n

Customer provided car charger
Generator Equipment
Service that we found when we showed up
This is after we replaced the panel
Generac Generators

+8

Response time2 hrs
Response rate97%
1 neighbors recently requested a quote
Avatar for In-House Electrical Services, Inc.
In-House Electrical Services, Inc.
4.5(
1,757
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2002

Emergency services offered

Warranties offered

"We had In-House Electrical replace/upgrade our main panel as well as setup a generator hook-up and A/C outlet outside. Adam and Avery were phenomenal - they were thorough, kept in constant communication with me during the project to ensure things were being done as I liked, and left the place looking better than when they showed up. They'll be my first call in the future for any electrical work I need done."
Response time40 mins
Response rate100%
14 neighbors recently requested a quote
Avatar for Mata Electrical Services LLC
Mata Electrical Services LLC
5.0(
10
)

Serving Bothell, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Mata Electrical Services installed a charging station at my home for my new EV, and I couldn’t be happier with the experience. Christian was professional, efficient, and provided excellent customer service from start to finish. The installation was completed within a few hours, and the charger was ready to use right away. The work passed inspection without any issues and has been performing perfectly ever since. I will definitely be hiring Mata Electrical Services for future projects."
Service and panel upgrade
Service and panel upgrade
Service and panel upgrade
Service and panel upgrade
Response time8 hrs
Response rate100%
11 neighbors recently requested a quote
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Showing 1-10 of 119
Generator Install questions, answered by experts

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. 

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

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.

The Bothell, WA homeowners’ guide to generator installs

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