Get matched with top generator install pros in Boulder, CO

Q: What size generator do I need for a 1500-square-foot house?

• <div><p>A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the <a href="https://www.angi.com/articles/how-many-watts-house.htm">total wattage</a> of the devices that you&rsquo;d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.</p></div>

Q: What are the disadvantages of a standby generator?

• <div><p>While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.</p></div>

Q: What are the benefits of a portable generator?

• <div><p>Portable generators provide backup power for essential appliances during outages and are easy to relocate.</p></div>

Q: How much does portable generator installation cost?

• <div><p>Costs range from $500 to $2,500, depending on generator type and installation complexity.</p></div>

Q: Can you use biofuel in a whole-house generator?

• <div><p>In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.</p></div>

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Verified Reviews for Generator Install pros in Boulder, CO

*The Angi rating for Generator Install companies in Boulder, 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 Boulder, 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 February 24, 2026

Reviewed in February 2026
Installing electrical circuit for new system in remodel building..
MG Power Electric, LLC
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Reviewed in October 2024
Danial did a Great job from the sales to education of the installation. Appreciated the guidance through everything. Very attentive and prompt ! Highly recommend.
Home Updates
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Reviewed in May 2023
Alphonso and his AMP crew did a great job on everything I wanted. My 28 yr old yard is beautiful once again! They fixed leaks in my sprinkler system, installed new sprinkler heads that were more efficient, and installed sod in front, back and side. They were knowledgable, pleasant and very hard...
AMP Landscaping
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Reviewed in October 2022
Jeff did a great job and was a pleasure to work with. He paid close attention to the details of the added wiring and EV charger installation, plus he took the time to answer all my questions before and during the installation.
Code Electric, LLC
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Reviewed in September 2022
Excellent installer, company was very quick to answer phone or return messages, patient with my questions, very professional
ReNew Home Innovations
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Reviewed in May 2022
All About Electric installed 2 new 240 V lines for me. Robert was has been very easy to work with. He quickly gave me a quote and explained what was involved in the install. The actual work was completed with no problems and everything works great. I would highly recommend them for any...
All About Electric
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Reviewed in April 2022
Joe arrived on time ready to install the microwave. We was professional, pleasant, and did a very professional job. I recommend you use him for installations, plumbing, and electrical jobs.
Hey, Joe!
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Reviewed in April 2022
Needed a 220 volt outlet installed in garage. Got an estimate and they were out the next day. Fast, professional, recommend.
E & L Electric
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Reviewed in September 2021
Iâ ll keep this short and simple. Clean, fast, professional, and a great install! Very friendly and a great person! Will hire him if I need any more help!
TrimGM LLC
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Reviewed in September 2021
LeafShield is the best company in Colorado installing the best product. Every part of the experience was great. Jason provided a competitive bid in less than 15 minutes with a friendly no pressure sales attitude. Installation was quick, clean, and on schedule. Very nice people that stand behind...
Gutter Guard Experts
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Find Generator install pros in Boulder

Epic Solar & Electric LLC

4.9(

)

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Yuri and his team did a fabulous job on upgrading my electrical panel and installing a whole house generator. Their work was meticulous, precise and clean and the inspector was very impressed with their work. The quote for the bid was fair, honest with no headgames or BS and this is important for women. I am glad I hired this company and they do guarantee their work."

Response time6 hrs

1 neighbors recently requested a quote

Recommended by97%of homeowners

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Silk City Electric, LLC

4.9(

)

Serving Boulder, CO and surrounding areas

Approved

In business since 1992

Free estimates

Credit card accepted

"The project was top notch. Marty installed a flood light and switch and would definitely use again and refer to others. Price was very reasonable. They were easy to reach, responded quickly, and communication was great."

Response time11 hrs

1 neighbors recently requested a quote

Recommended by100%of homeowners

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Tru Craft Electric Corp.

4.4(

168

)

Serving Boulder, CO and surrounding areas

Approved

In business since 1979

Free estimates

Customers say: Quality work

"Completed the 4 exterior lights install/replacement and electrical panel replacement in a reasonable time frame. Very courteous and professional."

Response time8 hrs

1 neighbors recently requested a quote

Recommended by94%of homeowners

Serving Boulder, CO and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"fixed an ungrounded outlet by installing a GFCI outlet. respectful, professional and efficient"

Response time8 hrs

3 neighbors recently requested a quote

Recommended by93%of homeowners

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Amp'd Up Electric LLC

5.0(

)

Serving Boulder, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Very very pleased with how nice the light fixtures look! Great installation job!"

+12

2 neighbors recently requested a quote

Recommended by100%of homeowners

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Red Fox Electric, Inc.

4.7(

163

)

Serving Boulder, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1986

Free estimates

Warranties offered

"Great job installing 4 ceiling fans."

Response time4 hrs

Response rate94%

153 neighbors recently requested a quote

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Ross Electrical Contracting, LLC

4.8(

)

Serving Boulder, CO and surrounding areas

Approved

In business since 2016

Customers say: Quick response

"Cameron was courteous and efficient. He did a great install for us and we would highly recommend him. We will definitely use him for future electrical work."

Response time1 day

Recommended by100%of homeowners

Serving Boulder, CO and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Very professional, absolute seamless experience. Completed the installation exactly the way I asked for it. Kelly and Alyse are awesome - highly recommend EV plug pros."

Response time3 days

Response rate90%

1 neighbors recently requested a quote

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MightyBee Electric, LLC

4.5(

292

)

Serving Boulder, CO and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"What a terrific experience we had with Mighty Bee Electric! Martin came the next day after we called. He was on time, clearly knows what he is doing and fixed everything for the estimated cost. And there was no upselling! I will definitely call him for any future electric work!"

+17

Response time1 day

Response rate100%

1 neighbors recently requested a quote

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Jonathan with the help of rudy and his team installed my 10,000 watt electric heater in my garage. Now i can smoke cigars and enjoy the football game without freezing. Truly a great addition to my house. They are my go to contractor for any additions I want in the house. I would highly recommend them"

Response time1 day

1 neighbors recently requested a quote

Recommended by87%of homeowners

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Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

See all articles

Nick P. Cellucci
•
Mar 11, 2026Mar 11, 2026
How Much Does a Whole-House Generator Installation Cost in Denver, CO? [2026 Data]
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•
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•
May 3, 2026May 3, 2026
How Much Does a Natural Gas Generator Cost? [2026 Data]
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
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•
May 3, 2026May 3, 2026
Whole-House Generator Installation: A Complete Guide
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
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•
May 21, 2026May 21, 2026
How to Use a Portable Generator: A Complete Guide
Portable generators are handy for many reasons, but they require care to prevent fire, electrocution, and more. Stay safe with this guide on how to use a generator.
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•
May 3, 2026May 3, 2026
Pros and Cons of a Whole-House Generator
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.