15 Best Solar Companies in Longmont, CO (2024 Reviews)

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

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

Average Longmont homeowner saves $1,563/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 2024

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 Longmont

Are you looking for energy freedom in Longmont? Installing solar panels can be a rewarding home project since you can take advantage of many perks after adopting solar power. Luckily, Longmont residents have tons of the best solar companies in the nation, which offer great value for generating green energy.


There are so many installers to choose from, but in this article, we’ll help you narrow down your options by recommending some of the best solar companies in Longmont.To help you know if solar panels are worth it for your home, you can get a free, no-obligation quote from one of the best solar companies in Longmont by clicking the button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch Rankings for Solar Companies in Longmont

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Smart Wave Solar

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

Services Offered

  • Service icon Emergency Services
  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Financing Assistance

Website: https://www.smartwavesolar.com/
Address: 4201 Madison St, Denver, CO 80216
Phone: 7205473422
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.3/5

ION Solar

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

Services Offered

  • Service icon Residential Panels
  • Service icon Full-Service
  • Service icon Commercial Panels
  • Service icon Permit Assistance
  • Service icon Financing Assistance

Website: https://www.ionsolar.com/colorado
Address: 12875 E 42nd Ave Suite #40, Denver, CO 80239
Phone: 7203073938
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Columbine Roofing & Solar

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

Services Offered

  • Service icon Solar Panel Upgrades
  • Service icon Residential Panels
  • Service icon Emergency Services
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Commercial Panels
  • 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

Progreen Solar

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

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Emergency Services

Website: https://www.progreen-solar.com/
Address: 1030 Boston Ave, Longmont, CO 80501
Phone: 3034841410
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Klick Solar

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Residential Panels
  • Service icon Maintenance
  • Service icon Financing Assistance

Website: https://klicksolar.com/
Address: 1811 Hover St C, Longmont, CO 80501
Phone: 7204659073
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Independent Power

  • 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 Off-Grid Solar Systems
  • Service icon Maintenance
  • Service icon Solar Panel Upgrades
  • Service icon Financing Assistance
  • Service icon Residential Panels
  • 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

3.0/5

Flatiron Solar

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • Service icon System Decommissioning
  • Service icon Maintenance
  • Service icon Solar Panel Upgrades
  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Consultation

Website: https://www.flatironsolar.com/
Address: 4721 Oxford Rd, Longmont, CO 80503
Phone: 3037754574
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Custom Solar

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

Services Offered

  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Commercial Panels

Website: http://www.customsolar.us/
Address: 2840 Wilderness Pl, Boulder, CO 80301
Phone: 3038598597
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Photon Brothers

  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • 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 Residential Panels
  • Service icon Battery Storage
  • Service icon Tesla Powerwall
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Maintenance
  • Service icon Skilled Repairs
  • Service icon Solar Panel Upgrades

Website: https://www.photonbrothers.com/denver/
Address: 7705 W 108th Ave, Broomfield, CO 80021
Phone: 7203703344
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

The Solar Revolution

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Off-Grid Solar Systems
  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Tesla Powerwall

Website: https://www.thesolarrevolution.com/
Address: 5723 Arapahoe Rd Suite 1A, Boulder, CO 80303
Phone: 3038159360
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Lumos Solar

  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Solar Carports

Website: http://www.lumossolar.com/
Address: 555 Aspen Ridge Dr UNIT B, Lafayette, CO 80026
Phone: 3034492394
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Aqua Care Solar LLC

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

Services Offered

  • Service icon Residential Panels
  • Service icon Solar Panel Upgrades
  • Service icon Commercial Panels
  • Service icon Skilled Repairs
  • Service icon Permit Assistance
  • Service icon Emergency Services
  • Service icon Maintenance

Website: http://www.aquacaresolar.com/
Address: 5171 Eldorado Springs Dr ste d, Boulder, CO 80303
Phone: 3035894428
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Elevated Independent Energy

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

Services Offered

  • Service icon Residential Panels
  • Service icon Maintenance
  • Service icon Solar Panel Upgrades
  • Service icon Battery Storage
  • Service icon EV Charger
  • Service icon Commercial Panels
  • Service icon Off-Grid Solar Systems

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

EcoWatch Rating

3.0/5

Green Collar Crew

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

Services Offered

  • Service icon Solar Roof Assessment
  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: https://greencollarcrew.com/
Address: 11001 W 120th Ave #400, Broomfield, CO 80021
Phone: 3034955510
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Vanguard Solar Services

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

Services Offered

  • Service icon Maintenance
  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Commercial Panels

Website: http://www.vanguardsolarservices.com/
Address: 6145 Broadway Unit 5, Denver, CO 80216
Phone: 7209098899

Methodology: How We Ranked the Best Solar Companies in Longmont

EcoWatch's solar experts analyzed each solar company in Longmont 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 Longmont


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 Longmont

Solar panels are powered by a free energy source — the sun — but to take advantage of this you will first need to pay to set up your panels.Some important things that impact the cost and possible savings include:

  • The amount of sunlight your roof gets: If your rooftop gets limited direct sunlight, your solar system won’t be able to make as much energy, which will leave you with lower savings on power bills than a house with a roof that gets plenty of sunlight.
  • Your income and budget: This affects what type of solar panels you can afford.
  • Incentives: The federal solar investment tax credit currently allows you to decrease your taxes by 0 of the project cost. Your state and city may also have various incentives that you can take advantage of. In addition, you can save about $19,000 over 20 years on your utility bills, without incentives.
  • Electricity consumption: The average home in Longmont uses a decent amount of, and so may save on their energy bills.

There are several great benefits of solar even with the upfront cost of installation. It can help the environment and your finances. Plus, it can raise the value of your home, giving you even more benefits if you decide to sell your home later.

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Solar Incentives in Longmont

Although solar power is typically a big investment, it can save you a significant amount of money in the long term because of smaller utility bills and government incentives.Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of how much you paid for your solar installation on your tax return, reducing the amount of taxes you owe that year. In addition, there may be some state and city incentives you can benefit from too. For more information about local incentives, check out our article on solar incentives.

Environmental Impact of Switching to Solar in Longmont

One of the reasons so many people consider adopting solar energy is to help reduce their environmental impact.You may be curious – how much does going solar do for the planet anyway? In a city like Longmont where commute times can be pretty long, going solar can help offset some of your carbon dioxide emissions from being on the road a lot.In fact, if you adopt solar power, you could look forward to lowering your carbon dioxide emissions by about 100 pounds each year. The good things about solar power are plentiful — just like solar power is! That's why so many people have been happy with making the switch to solar.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Longmont, CO Solar Company Rankings FAQs

Which solar power company is the best near me?

The highest-rated local solar company in Longmont is Smart Wave Solar, with a rating of 4.80 stars.

What are the best and worst things about solar power?

A few of the biggest pros are that it lowers your electricity bills, it’s good for the environment, and it provides a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, they cost a lot upfront and solar panels aren’t always aesthetically pleasing.

How long does it take to see a return on your investment after buying solar panels?

Solar panels generally pay for themselves in about 14.3 years, but your solar payback period will vary based on your utility costs. The more your typical energy bill, the quicker your solar panel system will pay for itself.

How often do solar panels have to be replaced?

Although the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is how much energy they produce will have decreased significantly after that point. You can opt to replace them once you've had them for that long or you can continue to use them at a lower efficiency after that time.

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.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.