Top-rated generator install pros.

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There are 4 highly-rated local generator install pros.

Find Generator install pros in Boulder

Avatar for JM Electric Inc

JM Electric Inc

4.98(
62
)
Approved Pro

JM Electric Inc

4.98(
62
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
191 local quotes requested

We are a Family owned company that has successfully completed many large and small projects. Our service/residential department handles all the rest. We use a flat rate price system and only licensed electricians. We offer a 100% Satisfaction Guarantee on all work done, or all you owe us is a handshake. Contractors License # 3677. JM Electric Inc. is offering $50 off priced jobs if a contribution of two or more nonperishables are donated towards our food drive.

"Quick response and immediate service."

Ryan I on December 2025

We are a Family owned company that has successfully completed many large and small projects. Our service/residential department handles all the rest. We use a flat rate price system and only licensed electricians. We offer a 100% Satisfaction Guarantee on all work done, or all you owe us is a handshake. Contractors License # 3677. JM Electric Inc. is offering $50 off priced jobs if a contribution of two or more nonperishables are donated towards our food drive.

"Quick response and immediate service."

Ryan I on December 2025


Avatar for Lightning Horse Electric, LLC

Lightning Horse Electric, LLC

5.00(
7
)
Approved Pro

Lightning Horse Electric, LLC

5.00(
7
)
Approved Pro
23 local quotes requested
Free onsite estimate

We are a locally Family owned and operated company, that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"We hired Riley of Lightning Horse Electric to convert a surface-mounted refrigerator outlet into a recessed outlet for a cleaner, more streamlined look. Riley was incredibly professional, punctual, and courteous throughout the entire process. He arrived right on time, explained what he was going to do, and completed the job efficiently—in just under two hours. The finished work looks excellent and met all of our expectations. It's clear that Riley takes pride in his craftsmanship and cares about doing the job right. I highly recommend Lightning Horse Electric for any residential electrical needs and wouldn’t hesitate to call Riley again."

Brent S on July 2025

We are a locally Family owned and operated company, that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"We hired Riley of Lightning Horse Electric to convert a surface-mounted refrigerator outlet into a recessed outlet for a cleaner, more streamlined look. Riley was incredibly professional, punctual, and courteous throughout the entire process. He arrived right on time, explained what he was going to do, and completed the job efficiently—in just under two hours. The finished work looks excellent and met all of our expectations. It's clear that Riley takes pride in his craftsmanship and cares about doing the job right. I highly recommend Lightning Horse Electric for any residential electrical needs and wouldn’t hesitate to call Riley again."

Brent S on July 2025


Avatar for Epic Solar & Electric LLC

Epic Solar & Electric LLC

4.91(
44
)
Approved Pro

Epic Solar & Electric LLC

4.91(
44
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
51 local quotes requested

Epic Solar & Electric is a owner operated company and a registered electrical contractor with the State of Colorado. Our licensed electricians have over 20 years of experience in all facets of electrical projects in commercial and residential applications. From small projects and service calls to large projects, you can be assured that you will be getting the best skilled and knowledgable electricians to do the job right. We also have over 10 years of solar photovoltaic experience, so we're here to help you harvest the suns magnificent energy. From residential to commercial applications, from design to completion, we can help you realize the benefits from one of the cleanest renewable energies available. Our team of certified designers, installers, and electricians are more than happy to answer any of your questions along the way. Home and building improvements often start and end with some type of complicated electrical work. And we know how complicated that stuff can be. But, at Epic Solar & Electric LLC we're here to help you figure all of those things out in a quick and efficient manner.

"The guys did a great job. They were very professional and finished the job promptly."

Tom N on June 2025

Epic Solar & Electric is a owner operated company and a registered electrical contractor with the State of Colorado. Our licensed electricians have over 20 years of experience in all facets of electrical projects in commercial and residential applications. From small projects and service calls to large projects, you can be assured that you will be getting the best skilled and knowledgable electricians to do the job right. We also have over 10 years of solar photovoltaic experience, so we're here to help you harvest the suns magnificent energy. From residential to commercial applications, from design to completion, we can help you realize the benefits from one of the cleanest renewable energies available. Our team of certified designers, installers, and electricians are more than happy to answer any of your questions along the way. Home and building improvements often start and end with some type of complicated electrical work. And we know how complicated that stuff can be. But, at Epic Solar & Electric LLC we're here to help you figure all of those things out in a quick and efficient manner.

"The guys did a great job. They were very professional and finished the job promptly."

Tom N on June 2025


Avatar for Professional Power, Inc.

Professional Power, Inc.

4.88(
8
)
Approved Pro

Professional Power, Inc.

4.88(
8
)
Approved Pro
Customers say: Quick response
160 local quotes requested
16 years of experience

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


Z-Man Inc.

4.90(
30
)
Approved Pro

Z-Man Inc.

4.90(
30
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
123 local quotes requested

Small licensed general and electrical contractor. All residential and small commercial electrical; service upgrades, lighting, power, plugs switches and fixtures. Residential basement, kitchen, and bath remodel.

"Great, fixed the problem in no time. Great service."

Larry M on October 2025

Small licensed general and electrical contractor. All residential and small commercial electrical; service upgrades, lighting, power, plugs switches and fixtures. Residential basement, kitchen, and bath remodel.

"Great, fixed the problem in no time. Great service."

Larry M on October 2025


Avatar for ChargerPro, LLC

ChargerPro, LLC

New on AngiNew on Angi
Approved Pro

ChargerPro, LLC

New on AngiNew on Angi
Approved Pro
59 local quotes requested
3 years of experience

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at ChargerPro strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. chargerpro.com

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at ChargerPro strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. chargerpro.com


Avatar for Heart Heating, Cooling, Plumbing & Electric

Heart Heating, Cooling, Plumbing & Electric

4.77(
77
)
Approved Pro

Heart Heating, Cooling, Plumbing & Electric

4.77(
77
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
549 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

4.53(
282
)
Approved Pro

MightyBee Electric, LLC

4.53(
282
)
Approved Pro
Customers say: Super punctual
85 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."

Naga 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."

Naga A on February 2025


Avatar for Table Mountain Electric Inc

Table Mountain Electric Inc

No reviews yet

Table Mountain Electric Inc

No reviews yet
3 years of experience

We have over 24 years of electrical experience in both residential electrical and light commercial projects in the Denver Metro Area. We take pride in the work we do and we strive to make each interaction for our customers great! Give us a call today so we can discuss your next electrical project! Price Match Guarantee on panel upgrades/replacements. Financing options available, ask for details!

We have over 24 years of electrical experience in both residential electrical and light commercial projects in the Denver Metro Area. We take pride in the work we do and we strive to make each interaction for our customers great! Give us a call today so we can discuss your next electrical project! Price Match Guarantee on panel upgrades/replacements. Financing options available, ask for details!


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Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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.

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.

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.

The Boulder, CO 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.
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