Top-rated generator install pros.

Get matched with top generator install pros in Freeport, IL

Enter your ZIP and get matched with up to 5 pros

Verified Reviews for Generator Install pros in Freeport, IL

*The Angi rating for Generator Install companies in Freeport, IL 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 Freeport, IL 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 October 25, 2025

Find Generator install pros in Freeport

Avatar for Tri-State Water, Power & Air

Tri-State Water, Power & Air

9526 Corsair Rd
New on AngiNew on Angi
•Approved Pro

Tri-State Water, Power & Air

9526 Corsair Rd
New on AngiNew on Angi
•Approved Pro
100 local quotes requested
33 years of experience

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

Avatar for Accent Tel USA

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Avatar for NextPhase Technology Solutions LLC

NextPhase Technology Solutions LLC

3602 Atwood Ave
5.00(
3
)
•Approved Pro

NextPhase Technology Solutions LLC

3602 Atwood Ave
5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

NextPhase provides network and technology support to business. We are available to assist as the first point of contact for any technology support needs, and are also able to assist IT staff with specific projects or needs. We enjoy a challenge, and often are able to quickly resolve long standing IT and technology issues when others have failed. As a full service technology provider, we are able to assist with network infrastructure, new PC and server equipment, telephone and voice equipment, and network security. We work with a wide range of technology solutions and are experts working with Windows and Linux.

"Jake is the best at what he does and is very thoughtful. I had a complicated situation and he visited the site and found an ideal solution for wifi connectivity. He created a fully built solution to my issue and examined all the points to consider."

Isaiah K on July 2022

NextPhase provides network and technology support to business. We are available to assist as the first point of contact for any technology support needs, and are also able to assist IT staff with specific projects or needs. We enjoy a challenge, and often are able to quickly resolve long standing IT and technology issues when others have failed. As a full service technology provider, we are able to assist with network infrastructure, new PC and server equipment, telephone and voice equipment, and network security. We work with a wide range of technology solutions and are experts working with Windows and Linux.

"Jake is the best at what he does and is very thoughtful. I had a complicated situation and he visited the site and found an ideal solution for wifi connectivity. He created a fully built solution to my issue and examined all the points to consider."

Isaiah K on July 2022

ServiceMaster DSI - Rockford

4815 Hydraulic Rd
5.00(
6
)

ServiceMaster DSI - Rockford

4815 Hydraulic Rd
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rockford is the third largest city in Illinois. Conveniently located between Chicago and Galena, Rockford is known for its industrial development and many cultural venues. Because so many businesses and residents are in close proximity due to the large population, disaster restoration must be performed quickly, efficiently, and professionally. ServiceMaster DSI provides fire restoration and water damage restoration in Rockford, IL so that residents and business owners can quickly return their normal routine following a disaster. Branch Manager Jon Ryberg is always on call to ensure a quick response to your disaster. Backed by local resources and the ServiceMaster DSI network, we are ready to restore your home and your peace of mind. Our products, processes, and equipment are created by ServiceMaster Restore® and hold up to their unique quality standards. Our technicians also undergo rigorous training and education so that you can be sure your home or office building receives the best restoration services possible. If your home or business has suffered from burst pipes or a house fire, call ServiceMaster DSI for restoration services in Rockford, IL. We guarantee honesty, dependability, and excellent service from start to finish.

"They came the day I called, with my downstairs having water in 3 areas , I was kept informed of who would be coming to do what job. They were always on time and I feel did an excellent job. If I had another water issue, they would be the first ones I would call."

Carolyn M on March 2018

Rockford is the third largest city in Illinois. Conveniently located between Chicago and Galena, Rockford is known for its industrial development and many cultural venues. Because so many businesses and residents are in close proximity due to the large population, disaster restoration must be performed quickly, efficiently, and professionally. ServiceMaster DSI provides fire restoration and water damage restoration in Rockford, IL so that residents and business owners can quickly return their normal routine following a disaster. Branch Manager Jon Ryberg is always on call to ensure a quick response to your disaster. Backed by local resources and the ServiceMaster DSI network, we are ready to restore your home and your peace of mind. Our products, processes, and equipment are created by ServiceMaster Restore® and hold up to their unique quality standards. Our technicians also undergo rigorous training and education so that you can be sure your home or office building receives the best restoration services possible. If your home or business has suffered from burst pipes or a house fire, call ServiceMaster DSI for restoration services in Rockford, IL. We guarantee honesty, dependability, and excellent service from start to finish.

"They came the day I called, with my downstairs having water in 3 areas , I was kept informed of who would be coming to do what job. They were always on time and I feel did an excellent job. If I had another water issue, they would be the first ones I would call."

Carolyn M on March 2018

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)
53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Atkins Electric

282 Oak St
5.00(
2
)

Atkins Electric

282 Oak St
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

From ceiling fan installations to custom home construction, Atkins Electric can take care of all your electrical needs. Backup generators, basement refinishing, and panel upgrades are just a few of the electrical projects we take care of on a regular basis. Reliable and clean. For all your electrical needs. Contact us for a free estimate. We treat your home like our own.

From ceiling fan installations to custom home construction, Atkins Electric can take care of all your electrical needs. Backup generators, basement refinishing, and panel upgrades are just a few of the electrical projects we take care of on a regular basis. Reliable and clean. For all your electrical needs. Contact us for a free estimate. We treat your home like our own.

Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Whole-house generators can last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

In many cases, you’ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.

The Freeport, IL homeowners’ guide to generator installs

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

See all articles

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"