*The Angi rating for Generator Install companies in Rainier, 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 Rainier, 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 September 17, 2025
Serving Rainier, OR and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Credit card accepted
"I was called immediately and the person explained my installation options, timeline and costs very clearly. The cost is most agreeable compared to other electricians I spoke with."
Serving Rainier, OR and surrounding areas
Approved
In business since 2015
Free estimates
Offers commercial services
"Good. They came and did the install. I got what I needed for a fair price. Looks good as well."
Serving Rainier, OR and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"We recently had our home electrical looked at and completed. Troy and Todd were able to locate and fix all our faulty lights, outlets issues and get them working again. This also included our clothes dryer. In the process they installed new circuit breakers to replace the ones that were burnt and damaged. We highly recommend North By Northwest Services to anyone looking for a great contractor for their project. They are on time, efficient, courteous and most of all, provided great customer service. They have earned a 5 Star Review from us. Thank you again Troy and Todd for helping us out. Best Regards. Sincerely, Pete and Lesly Romayor Aloha, Oregon"
+14
Serving Rainier, OR and surrounding areas
Approved
In business since 2011
Emergency services offered
Customers say: Terrific value
"Everything was straightforward and fair. Definitely would recommend Juan to anyone looking for an installer. Other companies were asking for deposits and such, which I found to be pretty shady."
Serving Rainier, OR and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"The installers were quick and efficient, finished the job in 1 day."
+154
Serving Rainier, OR and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Free estimates
Warranties offered
"My Home in Portland, Oregon needed a complete wiring upgrade. Including new wiring through the whole house, panel, meter, and weatherhead. Clint was a complete professional from start to finish. In addition we have had him back for multiple projects. Including led recess lighting, wiring a hot tub and garage. 10/10 recomend."
Serving Rainier, OR and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I had an emergency situation at my home where we partially lost power, and Unity went above and beyond in every respect! 1. They were able to send someone out the same day, and quoted me a $299 base fee. Every other electrician I called either said they were at least a week out, or had an emergency fee of $500 or more. 2. The electrician who came was SUPER friendly and helpful. 3. He quickly diagnosed and fixed the problem (it turned out to be relatively simple). 4. He then refused to accept even a partial payment, since the fix was so simple, and he was already in the neighborhood on another job. I will DEFINITELY call Unity again next time I need an electrician. Thank you!!!"
+19
Serving Rainier, OR and surrounding areas
Credit card accepted
"I called for an estimate for above mentioned services based on good reviews on Angie's list. A person came out and took detailed notes on everything I wanted. He sat out in his truck after that visit and I thought he was completing his estimate, thinking I would receive it very soon. Wrong. A week later, after I heard nothing, I called and finally got the estimate. The person doing the estimate made a big deal about the electrician being able to get in at 7:30 am. I told him it was hard for us to leave the house that early, but we did accommodate him. At 7:30, no one had arrived, so I stayed home until the electrician finally arrived at 8. He said he had been at a coffee shop because the scheduler told him not to arrive before 8 am. I had literally spoken to him the night before and he insisted the start time was to be 7:30. That was the first miscommunication. The estimator also made a big deal about getting the correct color switches and plates to match what was already in the house. When the electrician came, he had the wrong products; wrong color, and cheap dimmer switches I wouldn't want in my house. I went to Home Depot to get the correct ones, which the electrician installed. If I hadn't done that, the work would not have been completed in as timely a manner.
The person doing the work was wonderful. The person doing the estimating was very nice, but the communication was frought with problems. If I were to rate only on the electrician doing the work, it would be all A's.
When they were all done, they left the old meter outside the house uncovered. I called them and they promptly came to correct, in time for the electrical inspection which passed without incident.
"
Serving Rainier, OR and surrounding areas
In business since 1978
Free estimates
Emergency services offered
"Wonderful company. They were 1000$ under the next company. They did the for exactly the quote. I'm having them back to install some ceiling fan."
+42
Serving Rainier, OR and surrounding areas
In business since 1972
Free estimates
Emergency services offered
"Estimator arrived on time and checked 49 year old A/C and gave quote on new unit as well as repair. We authorized replacement and a date and cost was given, work was done on time, installers were very professional and friendly. Would have liked itemized bill that showed cost of each item, but would use them again. Very happy."
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Having a back-up power source in case of emergency is important. Here’s how to use a generator to power your house.
Natural gas generators can tap into existing gas lines so they never run out of fuel. Here’s how they work and how they’re used.
Using a generator during a power outage is a lifesaver. Our guide will show you how to connect a generator to your house without a transfer switch.
