Top-rated generator install pros.

Get matched with top generator install pros in Greenfield, MN

Enter your zip and get matched with up to 5 pros

Find Generator install pros in Greenfield

Avatar for Geosync Communications

Geosync Communications

4.80(
84
)
Approved Pro

Geosync Communications

4.80(
84
)
Approved Pro
Super Service Award
Customers say: True professional
10 years of experience
Emergency services offered

Geosync Communications is a Technology Systems Contractor that services the greater Minneapolis, St Paul area. Geosync represents competing data, security camera and access control systems to best serve our clients interests. Our goal is to deliver the best end-user experience, with a focus on PoE IP-based systems, we strive to find the best cutting edge technology to match our clients needs and budget. Geosync keeps costs low and quality of service high through consolidated, local and individually contactable sales, support and always licensed installation specialists. Established 2017 Over 5,000 projects and counting completed License # TS100006

"I engaged Sam Solberg, an independent contractor specializing in technical equipment installation and owner of GeoSync Communication, to install equipment at my residence. Upon arrival, Mr. Solberg appeared visibly displeased and offered minimal acknowledgment. I specifically requested installation at the roof peak to avoid obstructions. He dismissed this as a common misconception among non-technical individuals and insisted on placing the equipment at the side corner of the house. Since installation, I have experienced persistent WiFi connectivity issues. Diagnostic tools confirm signal obstruction caused by the adjacent roof peak. Multiple attempts to contact Mr. Solberg regarding relocation have gone unanswered. I strongly advise against retaining GeoSync Communication or Sam Solberg for any technical installation services. "

Dennis S on December 2025

Geosync Communications is a Technology Systems Contractor that services the greater Minneapolis, St Paul area. Geosync represents competing data, security camera and access control systems to best serve our clients interests. Our goal is to deliver the best end-user experience, with a focus on PoE IP-based systems, we strive to find the best cutting edge technology to match our clients needs and budget. Geosync keeps costs low and quality of service high through consolidated, local and individually contactable sales, support and always licensed installation specialists. Established 2017 Over 5,000 projects and counting completed License # TS100006

"I engaged Sam Solberg, an independent contractor specializing in technical equipment installation and owner of GeoSync Communication, to install equipment at my residence. Upon arrival, Mr. Solberg appeared visibly displeased and offered minimal acknowledgment. I specifically requested installation at the roof peak to avoid obstructions. He dismissed this as a common misconception among non-technical individuals and insisted on placing the equipment at the side corner of the house. Since installation, I have experienced persistent WiFi connectivity issues. Diagnostic tools confirm signal obstruction caused by the adjacent roof peak. Multiple attempts to contact Mr. Solberg regarding relocation have gone unanswered. I strongly advise against retaining GeoSync Communication or Sam Solberg for any technical installation services. "

Dennis S on December 2025


Avatar for Randy's Electric & Plumbing

Randy's Electric & Plumbing

4.68(
2,667
)
Approved Pro

Randy's Electric & Plumbing

4.68(
2,667
)
Approved Pro
Customers say: Super punctual
24 years of experience
Emergency services offered

You deserve a safe and reliable home. Get the job done right the first time with outstanding customer service from the Twin Cities top rated electrician. Outlets, fans, lighting, smoke detectors, switches, and service panels. Your full service electrician.

"They were very punctual and did a great job"

Paul O on October 2025

You deserve a safe and reliable home. Get the job done right the first time with outstanding customer service from the Twin Cities top rated electrician. Outlets, fans, lighting, smoke detectors, switches, and service panels. Your full service electrician.

"They were very punctual and did a great job"

Paul O on October 2025


"They were on time. Explained what he would do, was very professional and did a great job."

Dan C on October 2025

Aquarius Home Services is the top home service provider in Minnesota and Wisconsin. Offering expert service in HVAC, Water Softeners, Plumbing and Electrical . Our work is backed by a 100% performance guarantee.

"They were on time. Explained what he would do, was very professional and did a great job."

Dan C on October 2025


"Andy and his crew were fast and efficient. They promptly returned our call and were able to complete the project the next day. Will be calling them again for more projects around the house."

Jason Z on December 2023

We are a fully Licensed, Bonded and Insured family owned business with over 20 years experience. We believe that "Quality comes First" on all of our projects, no matter the size.

"Andy and his crew were fast and efficient. They promptly returned our call and were able to complete the project the next day. Will be calling them again for more projects around the house."

Jason Z on December 2023


Avatar for Harrison Electric, Inc.

Harrison Electric, Inc.

4.74(
340
)
Approved Pro

Harrison Electric, Inc.

4.74(
340
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
41 years of experience

14 Employees. No subs. Cost determined by the job. Travel charge applies. No extra charge for 24-hour emergency service (for existing customers only). Primary service area- Western & Northern suburbs of Minneapolis/St Paul including Hennepin, Anoka & Ramsey counties and parts of Sherburne county. All employees are background checked and drug tested. ***Please note we don't do Commercial residences or new construction.***

"Very professional and explained everything in detail. I would hire again. "

Ryan M on December 2025

14 Employees. No subs. Cost determined by the job. Travel charge applies. No extra charge for 24-hour emergency service (for existing customers only). Primary service area- Western & Northern suburbs of Minneapolis/St Paul including Hennepin, Anoka & Ramsey counties and parts of Sherburne county. All employees are background checked and drug tested. ***Please note we don't do Commercial residences or new construction.***

"Very professional and explained everything in detail. I would hire again. "

Ryan M on December 2025


Avatar for DJ's Home Services

DJ's Home Services

4.82(
65
)
Approved Pro

DJ's Home Services

4.82(
65
)
Approved Pro
Super Service Award
Customers say: True professional
55 years of experience
Emergency services offered

DJs Home Services of Minnesota has been Minnesota Homeowners' Best Friend since 1971, providing top-quality Plumbing, Heating, Cooling, Drains, Electrical, and Fireplace services. With decades of experience, DJs is committed to delivering reliable, professional, and customer-focused home services across the Twin Cities metro area. We take pride in our expert team, ensuring every job is done with care, precision, and a dedication to excellence. At DJs, we don’t just serve homes—we build lasting relationships. We care deeply about our customers, employees, and the community, striving to make every home more comfortable, safe, and efficient. Whether it’s a quick repair, a full installation, or routine maintenance, homeowners can trust DJs for dependable service and a job well done.

"Extremely expensive and made the other laundry valve leak that wasn't leaking before. "

Ben K on September 2025

DJs Home Services of Minnesota has been Minnesota Homeowners' Best Friend since 1971, providing top-quality Plumbing, Heating, Cooling, Drains, Electrical, and Fireplace services. With decades of experience, DJs is committed to delivering reliable, professional, and customer-focused home services across the Twin Cities metro area. We take pride in our expert team, ensuring every job is done with care, precision, and a dedication to excellence. At DJs, we don’t just serve homes—we build lasting relationships. We care deeply about our customers, employees, and the community, striving to make every home more comfortable, safe, and efficient. Whether it’s a quick repair, a full installation, or routine maintenance, homeowners can trust DJs for dependable service and a job well done.

"Extremely expensive and made the other laundry valve leak that wasn't leaking before. "

Ben K on September 2025


Avatar for Randy's Electric

Randy's Electric

4.64(
300
)
Approved Pro

Randy's Electric

4.64(
300
)
Approved Pro
Super Service Award
Customers say: True professional
16 years of experience
Emergency services offered

You deserve a safe and reliable home. Get the job done right the first time with outstanding customer service from the Twin Cities top rated electrician. Outlets, fans, lighting, smoke detectors, switches, and service panels. Your full service electrician.

"Installed EV charger as expected."

Kevin P on January 2026

You deserve a safe and reliable home. Get the job done right the first time with outstanding customer service from the Twin Cities top rated electrician. Outlets, fans, lighting, smoke detectors, switches, and service panels. Your full service electrician.

"Installed EV charger as expected."

Kevin P on January 2026


Avatar for 4-U Electric

4-U Electric

4.95(
21
)
Approved Pro

4-U Electric

4.95(
21
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
2 years of experience

Hello, I'm Tom Leahy, a Master Electrician with 20 years' experience and the proud owner of 4-U Electric. At 4-U Electric, we specialize in residential, commercial, and emergency electrical services, guided by our motto, "Plug into Quality." My passion for the electrical field stems from my stepfather, Brian, who instilled in me the values of quality, craftsmanship, and exceptional customer service, which have shaped my career. Outside of work, my wife, Timarie, and I cherish spending time with our family and actively participating in our community. We love camping and creating lasting memories with our children, Addy and Blane.

"Great. Work was done well and on time."

Brian S on June 2025

Hello, I'm Tom Leahy, a Master Electrician with 20 years' experience and the proud owner of 4-U Electric. At 4-U Electric, we specialize in residential, commercial, and emergency electrical services, guided by our motto, "Plug into Quality." My passion for the electrical field stems from my stepfather, Brian, who instilled in me the values of quality, craftsmanship, and exceptional customer service, which have shaped my career. Outside of work, my wife, Timarie, and I cherish spending time with our family and actively participating in our community. We love camping and creating lasting memories with our children, Addy and Blane.

"Great. Work was done well and on time."

Brian S on June 2025


Avatar for MUELLER ELECTRIC CO LLC

MUELLER ELECTRIC CO LLC

5.00(
15
)
Approved Pro

MUELLER ELECTRIC CO LLC

5.00(
15
)
Approved Pro
1 years of experience
Free onsite estimate

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 start to 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.

"Excellent experience! Would highly recommend! "

Sophia M on January 2026

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 start to 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.

"Excellent experience! Would highly recommend! "

Sophia M on January 2026


"Very helpful and he came right away."

Heidi P on December 2025

At University Electric we go out of our way to make our customers happy. We are very competitive with our rates and second to none in customer satisfaction. Call us today for an estimate!

"Very helpful and he came right away."

Heidi P on December 2025

...
Showing 1-10 of 529
Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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, this is extremely dangerous, often illegal, and you should never attempt it. If you connect your generator to your home without a transfer switch, the generated power can backfeed, essentially flowing back into the utility lines. Backfeeding exposes a significant threat of fatalities or harm to you and utility personnel, in addition to jeopardizing the structural integrity of your home.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

The Greenfield, MN homeowners’ guide to generator installs

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"