Top-rated generator install pros.

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There are 5 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Firestone, CO

*The Angi rating for Generator Install companies in Firestone, CO 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 Firestone, CO 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 06, 2025

Find Generator install pros in Firestone

Avatar for Diagnostic Guys

Diagnostic Guys

1760 Laporte Ave Unit 3
5.00(
10
)
•Approved Pro

Diagnostic Guys

1760 Laporte Ave Unit 3
5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
48 local quotes requested

We are a quality service company that specializes in finding electrical solutions that fit your house or business. We give an up front price and provide great information so you can make the best decision for your busses and family. With Diagnostic Guys you will get honest and professional work!

"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"

Kaitlin G on January 2024

We are a quality service company that specializes in finding electrical solutions that fit your house or business. We give an up front price and provide great information so you can make the best decision for your busses and family. With Diagnostic Guys you will get honest and professional work!

"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"

Kaitlin G on January 2024

Avatar for Professional Power, Inc.

Professional Power, Inc.

1341 W 121st Avenue
4.86(
7
)
•Approved Pro

Professional Power, Inc.

1341 W 121st Avenue
4.86(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
147 local quotes requested

Professional Power is a locally-owned and operated electrical contractor with offices in Westminster, Colorado. We service all of the greater Denver metro area! Our mission is to provide superior electrical services with a commitment to quality, value, and client satisfaction. Call us today and visit our website at www.propowercolorado.com

"Perfectly. Could not be happier."

Tania D on December 2024

Professional Power is a locally-owned and operated electrical contractor with offices in Westminster, Colorado. We service all of the greater Denver metro area! Our mission is to provide superior electrical services with a commitment to quality, value, and client satisfaction. Call us today and visit our website at www.propowercolorado.com

"Perfectly. Could not be happier."

Tania D on December 2024

Avatar for Modern Tech

Modern Tech

Colorado Springs
5.00(
12
)
•Approved Pro

Modern Tech

Colorado Springs
5.00(
12
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.

"Made the project at 1am and by 10am the next morning it was totally taken care of. Fast, professional, knowledgeable, and fairly priced."

Michelle L on November 2024

We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.

"Made the project at 1am and by 10am the next morning it was totally taken care of. Fast, professional, knowledgeable, and fairly priced."

Michelle L on November 2024

Avatar for Heart Heating, Cooling, Plumbing & Electric

Heart Heating, Cooling, Plumbing & Electric

646 Bryant St
4.77(
77
)
•Approved Pro

Heart Heating, Cooling, Plumbing & Electric

646 Bryant St
4.77(
77
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
328 local quotes requested

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Seneca Trujillo came out to give us a price quote on electrical work in our garage for an EV. He was professional, honest, straightforward and explained everything clearly. He took the time to answer all of my questions and concerns and gave a fair and transparent estimate without upselling unnecessary work. It's refreshing to meet someone who is trustworthy and puts integrity first. He definitely deserves a raise for the way he represents Heart Heating, Cooling, Plumbing and Electric."

Joe V on July 2025

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Seneca Trujillo came out to give us a price quote on electrical work in our garage for an EV. He was professional, honest, straightforward and explained everything clearly. He took the time to answer all of my questions and concerns and gave a fair and transparent estimate without upselling unnecessary work. It's refreshing to meet someone who is trustworthy and puts integrity first. He definitely deserves a raise for the way he represents Heart Heating, Cooling, Plumbing and Electric."

Joe V on July 2025

Avatar for MightyBee Electric, LLC

MightyBee Electric, LLC

7570 Lafayette St
4.53(
282
)
•Approved Pro

MightyBee Electric, LLC

7570 Lafayette St
4.53(
282
)
•Approved Pro
Customers say: Super punctual
75 local quotes requested
27 years of experience

MightyBee Electric is a family owned, GREEN local company with 34 years in the field. We do not charge a trip fee for Angie's List members within the direct Denver metro area ( except Boulder, Longmont, Castle Pines, Castlerock and Parker which will be charged a $39 trip fee) and give free estimates up front of the work always. We never assume authorization and customers can pay by cash, check or credit card at the time of repair. Formerly owned MD ELECTRIC. See website for additional services. 5% military, First Responders and elderly discount

"Excellent job done by Evan and team. He is very honest to provide me a decent quote. I also requested quotes from couple of other businesses, but they gave me about 25% and 135% more whatever Evan gave the quote. Keep it up good work. I am going to hire these people again and again."

Nagaraju A on February 2025

MightyBee Electric is a family owned, GREEN local company with 34 years in the field. We do not charge a trip fee for Angie's List members within the direct Denver metro area ( except Boulder, Longmont, Castle Pines, Castlerock and Parker which will be charged a $39 trip fee) and give free estimates up front of the work always. We never assume authorization and customers can pay by cash, check or credit card at the time of repair. Formerly owned MD ELECTRIC. See website for additional services. 5% military, First Responders and elderly discount

"Excellent job done by Evan and team. He is very honest to provide me a decent quote. I also requested quotes from couple of other businesses, but they gave me about 25% and 135% more whatever Evan gave the quote. Keep it up good work. I am going to hire these people again and again."

Nagaraju A on February 2025

Avatar for Lion Home Service

Lion Home Service

4868 Innovation Dr
4.45(
78
)
•Approved Pro

Lion Home Service

4868 Innovation Dr
4.45(
78
)
•Approved Pro
Customers say: Super punctual
180 local quotes requested
16 years of experience

Lion Home Service is setting a new standard of excellence in the industry. We specialize in prompt service, quality fixes, and a reliable response that you can trust. We take pride in our reputation and have built our business one satisfied customer at a time. Whether you need an emergency repair, regular maintenance, or have a project you are planning, we are your total home solution. Service Delivered With Pride! Heating, Cooling, Electrical, Plumbing, Drain Cleaning, Septic, Roofing, Gutters, Indoor Air Quality and MORE! Look for the Home Service company offering the best service and guarantees to ensure your repair or service is done correctly the first time! 100% SATISFACTION GUARANTEE- We agree to accept responsibility for your complete satisfaction with the materials we use and the workmanship we provide. During the first year, if you are dissatisfied with our service or our people for any reason, we will do whatever it takes to make it right and correct the problem to your satisfaction. Additional Guarantees- We Value Your Safety- No Blame Game-We Value Your Time-Apples to Apples -Workmanship

"DO NOT USE THIS COMPANY. Please look at the YELP or BBB complaints, they are much more akin to what I experienced. They are certainly manipulating the Google reviews. I hired Lion to do a simple cleaning/certifying of our HVAC units as part of a sale. I was initially quoted $119, and I verified no less than 3 times with the customer service rep that the price would include cleaning and testing. When our tech showed up, he said we were misquoted and the charge for cleaning and testing would be about $450, as it was part of their "maintenance" package. They very reluctantly cut us a "deal" for just over $300. Not only was zero cleaning done, the tech did not perform a single action that could be classified as "maintenance." What we got was a diagnostic and estimate for repairs and replacement. I called to complain twice before someone finally got back to me. I was told that the tech didn't perform the cleaning because it may have damaged the unit, which was clearly a lie because the tech never told me that and actually gave me a quote to perform the AC coil cleaning, $470 (what a deal!). The rep then told me that a simple cleaning was done, but not the deep clean that I was expecting. I asked that my invoice be revised to reflect that, but was quickly blocked. Yes, they actually blocked my number after repeatedly misrepresenting both the price and work. I was shocked. I filed a complaint with the BBB, of which I discovered there are many. Hopefully they do the right thing and just give me a refund, but I won't hold my breath. Again, they are clearly manipulating their reviews on Google. Customers do your research!"

Dylan N on May 2025

Lion Home Service is setting a new standard of excellence in the industry. We specialize in prompt service, quality fixes, and a reliable response that you can trust. We take pride in our reputation and have built our business one satisfied customer at a time. Whether you need an emergency repair, regular maintenance, or have a project you are planning, we are your total home solution. Service Delivered With Pride! Heating, Cooling, Electrical, Plumbing, Drain Cleaning, Septic, Roofing, Gutters, Indoor Air Quality and MORE! Look for the Home Service company offering the best service and guarantees to ensure your repair or service is done correctly the first time! 100% SATISFACTION GUARANTEE- We agree to accept responsibility for your complete satisfaction with the materials we use and the workmanship we provide. During the first year, if you are dissatisfied with our service or our people for any reason, we will do whatever it takes to make it right and correct the problem to your satisfaction. Additional Guarantees- We Value Your Safety- No Blame Game-We Value Your Time-Apples to Apples -Workmanship

"DO NOT USE THIS COMPANY. Please look at the YELP or BBB complaints, they are much more akin to what I experienced. They are certainly manipulating the Google reviews. I hired Lion to do a simple cleaning/certifying of our HVAC units as part of a sale. I was initially quoted $119, and I verified no less than 3 times with the customer service rep that the price would include cleaning and testing. When our tech showed up, he said we were misquoted and the charge for cleaning and testing would be about $450, as it was part of their "maintenance" package. They very reluctantly cut us a "deal" for just over $300. Not only was zero cleaning done, the tech did not perform a single action that could be classified as "maintenance." What we got was a diagnostic and estimate for repairs and replacement. I called to complain twice before someone finally got back to me. I was told that the tech didn't perform the cleaning because it may have damaged the unit, which was clearly a lie because the tech never told me that and actually gave me a quote to perform the AC coil cleaning, $470 (what a deal!). The rep then told me that a simple cleaning was done, but not the deep clean that I was expecting. I asked that my invoice be revised to reflect that, but was quickly blocked. Yes, they actually blocked my number after repeatedly misrepresenting both the price and work. I was shocked. I filed a complaint with the BBB, of which I discovered there are many. Hopefully they do the right thing and just give me a refund, but I won't hold my breath. Again, they are clearly manipulating their reviews on Google. Customers do your research!"

Dylan N on May 2025

Avatar for Sparky's Electrical Services, LLC

Sparky's Electrical Services, LLC

1609 39th Street Ct
5.00(
6
)
•Approved Pro

Sparky's Electrical Services, LLC

1609 39th Street Ct
5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

Electrical Contractor. Providing Electrical Services for residential, commercial, new construction, remodeling and repairs.

"Let me just say that the next time I have an electrical related issue that requires some attention it will be Sparky's that I call. Every box that needs checked to leave me satisfied about the service was checked plus those extra boxes that go beyond just satisfaction that give that confidence and peace of mind I need, everyone needs... to feel we've 'made the right decision in who we hire. Thanks Sparky's & Hector! No stone was left unturned and no box was left unchecked! ;)"

William M on July 2024

Electrical Contractor. Providing Electrical Services for residential, commercial, new construction, remodeling and repairs.

"Let me just say that the next time I have an electrical related issue that requires some attention it will be Sparky's that I call. Every box that needs checked to leave me satisfied about the service was checked plus those extra boxes that go beyond just satisfaction that give that confidence and peace of mind I need, everyone needs... to feel we've 'made the right decision in who we hire. Thanks Sparky's & Hector! No stone was left unturned and no box was left unchecked! ;)"

William M on July 2024

Avatar for Innovate Electric, Inc.

Innovate Electric, Inc.

3774 Rowe Street Unit 7
5.00(
1
)
•Approved Pro

Innovate Electric, Inc.

3774 Rowe Street Unit 7
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Innovate Electric, Inc. 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.

"Extremely professional. Easy to work with. Overall great experience."

Bill M on January 2020

Innovate Electric, Inc. 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.

"Extremely professional. Easy to work with. Overall great experience."

Bill M on January 2020

Active Cabling & Communications, LLC

12715 Yates Street
5.00(
2
)
•Approved Pro

Active Cabling & Communications, LLC

12715 Yates Street
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

Welcome to Active Cabling & Communications, LLC. We provide the best electrical work for all our residential and commercial clients. We promise to serve our clients with the highest quality and the most convenient pricing.

"I really enjoyed the work by these Networking/Ethernet folks. A different provider had quoted me an $800-1000 project and said I needed Cat 6 cabling for ethernet, when really my existing Cat 5E was fine. All it took was ~$100 and one hour for parts and labor and I now have ethernet ports in every room that support Gigabit speed. Thanks again! Couldn't be happier with this."

Sekhar P on April 2018

Welcome to Active Cabling & Communications, LLC. We provide the best electrical work for all our residential and commercial clients. We promise to serve our clients with the highest quality and the most convenient pricing.

"I really enjoyed the work by these Networking/Ethernet folks. A different provider had quoted me an $800-1000 project and said I needed Cat 6 cabling for ethernet, when really my existing Cat 5E was fine. All it took was ~$100 and one hour for parts and labor and I now have ethernet ports in every room that support Gigabit speed. Thanks again! Couldn't be happier with this."

Sekhar P on April 2018

Avatar for Table Mountain Electric inc.

Table Mountain Electric inc.

5160 Parfet St Unit B5
5.00(
32
)
•Approved Pro

Table Mountain Electric inc.

5160 Parfet St Unit B5
5.00(
32
)
•Approved Pro
Customers say: Quick response
113 local quotes requested
3 years of experience

Welcome to Table Mountain Electric Inc., Denvers trusted name in premier electrical solutions. Nestled in the heart of the Mile-High City, we pride ourselves on powering Denver homes and businesses with the finest in electrical craftsmanship. From essential services such as electrical panel upgrades and panel replacements to intricate basement electrical wiring for your renovation needs, our expertise shines through in every project. Considering a modern makeover for your kitchen? Our adept team ensures seamless kitchen wiring, keeping pace with your remodeling dreams. We understand the pulse of Denvers electrical requirements, making us the go-to electrician near you. Call today for your free estimate!

"Installation of our new range was seamless after Table Mountain Electric replaced the circuit. Pricing was fair, transparent, and understandable. We would recommend them for electrical needs."

Venita D on September 2025

Welcome to Table Mountain Electric Inc., Denvers trusted name in premier electrical solutions. Nestled in the heart of the Mile-High City, we pride ourselves on powering Denver homes and businesses with the finest in electrical craftsmanship. From essential services such as electrical panel upgrades and panel replacements to intricate basement electrical wiring for your renovation needs, our expertise shines through in every project. Considering a modern makeover for your kitchen? Our adept team ensures seamless kitchen wiring, keeping pace with your remodeling dreams. We understand the pulse of Denvers electrical requirements, making us the go-to electrician near you. Call today for your free estimate!

"Installation of our new range was seamless after Table Mountain Electric replaced the circuit. Pricing was fair, transparent, and understandable. We would recommend them for electrical needs."

Venita D on September 2025

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Generator Install questions, answered by experts

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

A whole house generator can be worth the extra money for peace of mind if your home is prone to power outages for extended periods of time or if you have life-saving medical equipment that needs to maintain power at all times. These devices can also increase your home’s value, especially in areas prone to extreme weather and power outages.

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

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The Firestone, CO homeowners’ guide to generator installs

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

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