Get matched with top generator installers in Gresham, OR
There are 5 highly-rated local generator installers.
Verified Reviews for Generator Installation pros in Gresham, OR
*The Angi rating for Generator Installation companies in Gresham, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in Gresham, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on July 20, 2025
Generator installers in Gresham
We specialize in electrical services. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!
"It went well, we are pleased with the results."
Fred M on May 2024
We specialize in electrical services. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!
"It went well, we are pleased with the results."
Fred M on May 2024
Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!
"A+ job! Wonderful workmanship! ."
Toni M on June 2025
Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!
"A+ job! Wonderful workmanship! ."
Toni M on June 2025
Electrical service calls and projects are my specialty. From troubleshooting a circuit to installing a generator, no job is too small or large. Contact me to discuss your electrical needs. Customer satisfaction is my priority; if you're not happy, my company doesn't succeed.
"Hired for bathroom remodel, was able to quote over the phone, great communication, finished the job and affordable. Thanks Flow!"
Paul D on April 2025
Electrical service calls and projects are my specialty. From troubleshooting a circuit to installing a generator, no job is too small or large. Contact me to discuss your electrical needs. Customer satisfaction is my priority; if you're not happy, my company doesn't succeed.
"Hired for bathroom remodel, was able to quote over the phone, great communication, finished the job and affordable. Thanks Flow!"
Paul D on April 2025
Andersen Electric, Inc., can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction
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Judy D on March 2019
Andersen Electric, Inc., can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction
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Judy D on March 2019
Top Electrical Technicians, Licensed Bonded Insured. Five-year warranty, serving Oregon and Washington with A+ Service..
"Great, fast, and friendly service by Wyatt! I appreciate your help with installing our 3 new outdoor lights. They look so much better! Thanks to Troy too, for booking the appointment. Fair pricing. I would hire them again."
Katrina N on March 2025
Top Electrical Technicians, Licensed Bonded Insured. Five-year warranty, serving Oregon and Washington with A+ Service..
"Great, fast, and friendly service by Wyatt! I appreciate your help with installing our 3 new outdoor lights. They look so much better! Thanks to Troy too, for booking the appointment. Fair pricing. I would hire them again."
Katrina N on March 2025
We Install and/or Service: ► CAT5e/CAT6/CAT6A Network Cabling ► Single-Mode/Multi-Mode Fiber Optic Network Cabling ► Video Surveillance Systems ► Network Video Surveillance (NVR) ► Digital Video Surveillance (DVR) (Coax cabling) ► Legacy CCTV systems ► Circuit Extensions ► Network Equipment Rack & Stack ► Smart-Hands for Hardware ► Wireless Networks (WiFi) ► Point to Point Wireless Networking ► Firewalls - Smart-Hands ► Ethernet Switches ► Power over Ethernet (PoE) Switches ► Point of Sale (POS) - Smart-Hands ► Digital Signage - Smart-Hands ► Overhead Paging ► LAN Remediation ► Equipment Installs for Cloud/Hosted telephone systems ► Avaya IP Office (premise-based telephone systems) ► Avaya Legacy Equipment (premise-based telephone systems) ► AT&T/Lucent Technologies Legacy Equipment (premise-based telephone systems) ► Analog Telephone Lines ► ISDN PRI (T-1) Digital Telephone Lines ► Dedicated High-Speed Internet Access
"They did a good job on our installation of a security camera system. What they did very, very badly was create a quote that was way lower than what it actually ended up costing. Beware of this if you are considering using them! They will cover themselves by saying it?s a ?rough estimate? in order to capture your business?but in our experience, they certainly knew how far they were driving (Clackamas to Hillsboro)..yet the travel costs were roughly triple what was quoted. The original estimate to install a camera system that cost $1,500 was $1,850. I was a little shocked at the estimate..but it ended up being similar to the other quote that I received. The actual invoice came in a little over $2800! No warning that it was going to be way over..and they had an answer for everything?kinda like they?d done this before. Again, the work was good, but there is now way I?d ever use this outfit again or recommend them to anyone I know!"
merrick s on May 2025
We Install and/or Service: ► CAT5e/CAT6/CAT6A Network Cabling ► Single-Mode/Multi-Mode Fiber Optic Network Cabling ► Video Surveillance Systems ► Network Video Surveillance (NVR) ► Digital Video Surveillance (DVR) (Coax cabling) ► Legacy CCTV systems ► Circuit Extensions ► Network Equipment Rack & Stack ► Smart-Hands for Hardware ► Wireless Networks (WiFi) ► Point to Point Wireless Networking ► Firewalls - Smart-Hands ► Ethernet Switches ► Power over Ethernet (PoE) Switches ► Point of Sale (POS) - Smart-Hands ► Digital Signage - Smart-Hands ► Overhead Paging ► LAN Remediation ► Equipment Installs for Cloud/Hosted telephone systems ► Avaya IP Office (premise-based telephone systems) ► Avaya Legacy Equipment (premise-based telephone systems) ► AT&T/Lucent Technologies Legacy Equipment (premise-based telephone systems) ► Analog Telephone Lines ► ISDN PRI (T-1) Digital Telephone Lines ► Dedicated High-Speed Internet Access
"They did a good job on our installation of a security camera system. What they did very, very badly was create a quote that was way lower than what it actually ended up costing. Beware of this if you are considering using them! They will cover themselves by saying it?s a ?rough estimate? in order to capture your business?but in our experience, they certainly knew how far they were driving (Clackamas to Hillsboro)..yet the travel costs were roughly triple what was quoted. The original estimate to install a camera system that cost $1,500 was $1,850. I was a little shocked at the estimate..but it ended up being similar to the other quote that I received. The actual invoice came in a little over $2800! No warning that it was going to be way over..and they had an answer for everything?kinda like they?d done this before. Again, the work was good, but there is now way I?d ever use this outfit again or recommend them to anyone I know!"
merrick s on May 2025
Our mission at Gerryn Energy is to continue the growth of our business by doing right by all of our clients. We offer economical solutions geared towards sustainability. We love seeing that one of a kind smile on a home owners face after being wowed by the professionalism you receive. Gerryn Energy stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today, or schedule an appointment on our Facebook page (link below).
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Tara S on January 2023
Our mission at Gerryn Energy is to continue the growth of our business by doing right by all of our clients. We offer economical solutions geared towards sustainability. We love seeing that one of a kind smile on a home owners face after being wowed by the professionalism you receive. Gerryn Energy stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today, or schedule an appointment on our Facebook page (link below).
"NA"
Tara S on January 2023
"Got scheduled fast and fixed even faster."
Martin M on May 2025
"Got scheduled fast and fixed even faster."
Martin M on May 2025
Oakley Electrical, Inc., has been servicing the Miilwaukie and surrounding area since 1999. Our electrical services range from troubleshooting and minor repair to commercials projects. Our company philosophy is simple: To provide prompt, courteous and professional service on every call regardless of the size of the job, and with that philosophy we have earned an excellent reputation around town. We offer 24/7 emergency service, Saturday scheduling and can provide same day service in most cases, and next day service without fail. We also offer free estimates and can develop a rate structure on time and materials jobs that are within your budget. We can also match or beat anyone's rates guaranteed! Please give us a call if we can be of service!
"My elderly sister suffered a strong power surge apparently caused by some issue with Portland General Electric. Oakley Electric sent a crew out with lead Troy Fisher, and they immediately went to work tracing down all affected electrical systems and outlets, installed a new surge protected electric box and assisted her with contacting her insurance company. They were all very attentive to detail and courteous. They also assisted in getting a furnace expert on site to replace her burned out furnace. Can't say enough about their excellent customer service."
Linda M on April 2015
Oakley Electrical, Inc., has been servicing the Miilwaukie and surrounding area since 1999. Our electrical services range from troubleshooting and minor repair to commercials projects. Our company philosophy is simple: To provide prompt, courteous and professional service on every call regardless of the size of the job, and with that philosophy we have earned an excellent reputation around town. We offer 24/7 emergency service, Saturday scheduling and can provide same day service in most cases, and next day service without fail. We also offer free estimates and can develop a rate structure on time and materials jobs that are within your budget. We can also match or beat anyone's rates guaranteed! Please give us a call if we can be of service!
"My elderly sister suffered a strong power surge apparently caused by some issue with Portland General Electric. Oakley Electric sent a crew out with lead Troy Fisher, and they immediately went to work tracing down all affected electrical systems and outlets, installed a new surge protected electric box and assisted her with contacting her insurance company. They were all very attentive to detail and courteous. They also assisted in getting a furnace expert on site to replace her burned out furnace. Can't say enough about their excellent customer service."
Linda M on April 2015
The experienced electricians of Mr. Electric of Portland specialize in providing residential and commercial electrical service and repair. Whether you need a simple home repair or have a more detailed commercial project reserved for an expert electrical contractor, we can help. You can feel confident calling Mr. Electric of Portland knowing that our highly trained professionals will treat you, your family and your property with the respect and attention to safety you deserve. Having served this community for many years as quality electrical contractors, we have come to understand the needs of customers for quality and experienced electrical repair services for both residential and commercial.
"They are amazing! "
Toni M on June 2025
The experienced electricians of Mr. Electric of Portland specialize in providing residential and commercial electrical service and repair. Whether you need a simple home repair or have a more detailed commercial project reserved for an expert electrical contractor, we can help. You can feel confident calling Mr. Electric of Portland knowing that our highly trained professionals will treat you, your family and your property with the respect and attention to safety you deserve. Having served this community for many years as quality electrical contractors, we have come to understand the needs of customers for quality and experienced electrical repair services for both residential and commercial.
"They are amazing! "
Toni M on June 2025
FAQs for generator installation projects in Gresham, OR
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
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