15 Best Solar Companies in Boulder, CO (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Boulder based on:

  • Customer review scores
  • Service area for Boulder, CO
  • Company policies and services offered
  • Accreditations and certifications

Average Boulder homeowner saves $1,584/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Boulder

When you’re on the hunt for the best solar companies in Boulder, going through so many options can be intimidating, but it can pay off since adopting solar power can offer so many fantastic perks. Solar panels can be expensive, but adopting solar will save you money on your energy bills in the long term. In fact, you can potentially save about $19,000 over 20 years.


In this article, we’ll let you in on the top Boulder solar installers so you can find the best one for your home’s green energy needs.To help you find out if solar panels are a good idea for your home, you can get a free, no-obligation quote from one of the best solar companies in Boulder by clicking the button below.

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EcoWatch Rankings for Solar Companies in Boulder

Best Local Installer
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EcoWatch Rating

5.0/5

Vanguard Solar Services

  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Cleaning and Maintenance

Website: http://www.vanguardsolarservices.com/
Address: 6145 Broadway Unit 5, Denver, CO 80216
Phone: 7209098899
Outstanding Local Installer
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EcoWatch Rating

5.0/5

MH Electrical and Solar

  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Tesla Powerwall
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage

Website: http://www.mhelectricalandsolar.com/
Address: 2806 Speer Blvd, Denver, CO 80211
Phone: 3039150914
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar Wave

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Off-Grid Solar Systems

Website: https://www.thesolarwave.com/
Address: 2301 Blake St Suite 100, Denver, CO 80205
Phone: 7207304129
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Next Energy Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: http://www.nextenergy.solar/
Address: 8925 Pieper Road Building A, Unit D, Wellington, CO 80549
Phone: 9709002003
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Independent Power

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Battery Storage

Website: https://www.solarips.com/
Address: 1501 Lee Hill Dr UNIT 24, Boulder, CO 80304
Phone: 3034430115
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Columbine Roofing & Solar

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://www.columbineroofingllc.com/
Address: 328 Coffman St, Longmont, CO 80501
Phone: 3039524242
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Apollo Energy

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon System Decommissioning
  • Service icon Panel Installation

Website: https://www.harnessoursun.com/
Address: 1400 E 66th Ave Unit B, Denver, CO 80229
Phone: 7205828258
Outstanding Local Installer
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EcoWatch Rating

4.9/5

ARE Solar

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Financing Assistance

Website: https://aresolar.com/
Address: 1155 S Tejon St, Denver, CO 80223
Phone: 7207062773
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Alt E Wind & Solar, Ltd.

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: http://www.altewindandsolar.com/
Address: 734 Elk Ranch Ln, Fort Collins, CO 80524
Phone: 9704827652
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Elevated Independent Energy

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Solar Panel Upgrades

Website: http://www.einrg.com/
Address: 7000 Broadway STE 104, Denver, CO 80221
Phone: 9704604970
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Roper Roofing & Solar

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: https://www.roperroofingandsolar.com/
Address: 795 McIntyre St #303, Golden, CO 80401
Phone: 7204751065
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Cascade Solar & Electric

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: https://cascadese.com/
Address: 2475 W 2nd Ave Unit 30, Denver, CO 80223
Phone: 3039284123
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Apex Solar Solutions

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: https://www.apexsolarsolutions.com/
Address: 201 Milwaukee St Unit 200, Denver, CO 80206
Phone: 7202079625
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Lessar Energy

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: http://www.lessarenergy.com/
Address: 5500 Greenwood Plaza Blvd Suite 130, Greenwood Village, CO 80111
Phone: 7209278600
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Elite Solar

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

Website: http://www.elitesolarcolorado.com/
Address: 1745 Shea Center Dr #400, Highlands Ranch, CO 80129
Phone: 7204352739

Methodology: How We Ranked the Best Solar Companies in Boulder

EcoWatch's solar experts analyzed each solar company in Boulder based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Boulder


Below are some the criteria we examined specifically for Colorado solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Boulder

While solar panels can help save you money on electricity bills over time, it’s necessary to consider the upfront costs.Some important things that affect the cost and possible savings include:

  • The amount of sunlight your city gets: Due to Boulder’s very high amount of average daily sunlight, you should be able to save a lot on your power bills.
  • System size and type: Some models are more costly than others, so the one you decide on can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.
  • Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, allows you to deduct 0 of the cost of installing your solar panel system from your taxes. Additionally, not including incentives, you can save about $19,000 over 20 years on your energy bills.
  • How much power your home consumes: Households that need plenty of energy each month may need more solar panels and, therefore, be more costly, but will also enjoy more savings over time.

Even though a solar panel system costs a decent chunk of money upfront, it can save you thousands of dollars over time. The question of how much, though, depends on a number of factors, such as the angle of your roof and your current power bills.

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Solar Incentives in Boulder

One of the benefits of installing a solar panel system is earning government incentives.No matter what state you live in, you can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of how much your solar project cost on your tax return, reducing the amount of taxes you owe that year. Plus, there may be some state and city incentives that stack with the ITC too. Check out our article on solar incentives to learn what incentives you can take advantage of.

Environmental Impact of Switching to Solar in Boulder

Installing solar panels is a profound way to do your part for a greener future.But – how much exactly can you help by using solar power? In a city like Boulder where energy use is rather high, installing solar panels is a good idea for people who want to do their part for the environment.While solar panel production emits carbon dioxide, the panels make up for it by considerably reducing the amount of CO2 you would have produced if you still used traditional energy. In Boulder, you can reduce your carbon footprint by 100 pounds a year with solar panels. For those who are concerned about the environment, the upfront cost of solar is a small price to pay for the offset carbon emissions.

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EcoWatch's Boulder, CO Solar Company Rankings FAQs

Which solar installation company is the best in Boulder?

In Boulder, Vanguard Solar Services is the best local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're looking to add solar panels to your home.

What are a few of the advantages and disadvantages of going solar?

A few of the biggest pros are that it lets you spend less on your power bills, it’s eco-friendly, and it can provide a good return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, there is a high upfront cost and solar panels can be an eyesore.

Are solar panels worth it?

Solar panels require a large upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like local electricity rates and the amount of direct sunlight your roof gets.

How efficient are solar panels?

Solar panel efficiency is the amount of solar energy that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need fewer of them to meet your home's energy needs.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.