Find the Best Solar Installers in Longmont, Colorado
Discover companies with proven track records, excellent customer reviews, and a commitment to service and quality. Here’s our curated list of Longmont, Colorado’s most reliable solar installers, to start your solar journey with confidence.
Flatiron Solar review 4721 Oxford Road, Longmont CO, 80503
Scotts Roofing & Solar review 211 N Public Rd., #100, Lafayette, Colorado 80026, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Scotts Roofing read more…
Independent Power review 1501 Lee Hill Dr, Boulder CO, 80304
Independent Power is rewarded with our Expert Choice badge, serving an exclusive area of fewer than 2 states. With a read more…
Namaste Solar review 4571 Broadway St, Boulder, CO, USA
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Namaste Solar read more…
Independent Power review 1501 Lee Hill Rd. #24, Boulder, CO 80304
Independent Power is rewarded with our Expert Choice badge, serving an exclusive area of fewer than 2 states. With a read more…
The Solar Revolution review Boulder, CO 80308, Boulder, Colorado, United States
The Solar Revolution is rewarded with our Expert Choice badge, serving an exclusive area of fewer than 1 state. With read more…
Aqua Care Solar review 5171 Eldorado Springs Dr ste d, Boulder, CO 80303
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Aqua Care read more…
Liv Solar review 7140 W 117th Ave #C3, Broomfield, CO 80020, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Liv Solar read more…
Photon Brothers review 7705 W 108th Avenue Suite 100, Westminster CO, 80021
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Photon Brothers read more…
GRNE Solar review 5858 Wright Dr, Loveland CO, 80538
GRNE Solar is a reputable provider of solar energy solutions, specializing in the design and installation of solar panel systems read more…
Solar Side Up review 9360 Gold Mine Road Loveland, CO 80538
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Solar Side read more…
Freedom Solar Power review 2300 E 76th Avenue Suite D400, Denver CO, 80229
Freedom Solar Power is rewarded with our Expert Choice badge, serving an exclusive area of fewer than 5 states. With read more…
Apollo Energy review 1400 E 66th Ave, Denver CO, 80229
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Apollo Energy read more…
BriteStreet Energy review 6200 N. Washington Street STE 9, Denver CO, 80216
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, BriteStreet Energy read more…
Vanguard Solar Services review 6145 N Broadway Unit 5, Denver, CO 80216
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Vanguard Solar read more…
Pro Bid Energy review 3975 E 56th Ave Unit B-1 Commerce City, CO 80022
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Pro Bid read more…
ION Solar review 6185 East 56th Ave Unit G, Commerce City CO, 80022
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, ION Solar read more…
Ecology Solar review 4512 Vallejo Street Denver, CO 80211
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Ecology Solar read more…
Smart Wave Solar review 4201 Madison St, Denver CO, 80216
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Smart Wale read more…
Smart Wave Solar review 8354 Northfield Blvd, Denver CO, 80238
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Smart Wale read more…
How Much Can Solar Panels Save You in Longmont, Colorado?
Finding out how much you can save on solar in Colorado, is not a straightforward answer. It depends on several factors, including the solar billing of your utility company, the size of a potential solar system on your roof, and your household’s energy consumption. While most solar installers will try to cover all your electricity needs, the actual savings will depend on your home’s unique conditions. To get a personal estimate of how much you could potentially save by going solar, fill out a simple form on our website, use Google’s Project Sunroof solar savings calculator, or consult with a couple of local solar installation companies for a personalized savings calculation.
Read more about solar panel costs, incentives, and rebates in Colorado.
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Solar Financing Explained
You can pay for solar panels in a couple of ways:
- Cash
- Installer solar loans
- Personal loans
- Cash-out refinance or HELOC
- Solar Leases or Power Purchase Agreements (PPA)
First, there is a cash purchase, which in most cases provides the best price and long-term savings, but the upfront payment is not always what you can afford. If you want to own your solar panels and don’t have about $15,000 to $20,000 in the bank, you’ll have to choose solar panel financing.
You can consider a personal loan, a home equity line of credit, or a solar loan offered by the solar company. However, keep in mind that these loans come with interest and additional fees. Solar loans often are tied to dealer fees, which can increase the total cost of your solar system by 20% or more in exchange for a lower interest rate. To ensure you get the best possible deal, it is wise to compare the dealer fees and interest rates offered by different installers. This way, you can make an informed decision based on the most favorable terms available.
Some companies offer solar leases or PPAs that require zero upfront cost. But in such cases, you don’t own solar panels and you are not eligible for any solar rebates or the federal tax credit. And, because you have to pay the solar company monthly, your total solar savings will be lower. Ask for detailed savings calculations from a solar installer to decide on the best option. In most cases, you will still be paying less for electricity.
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Colorado Solar Incentives and Rebates
Thinking about solar in Colorado? You picked a good state for it. Colorado's actually got some decent incentives, though there's one massive urgent thing you need to know about right now before we get into anything else.
1. Federal Solar Tax Credit (Gone After December 31, 2025)
Alright, let's get the urgent part out of the way first. The federal solar tax credit—the big one that gives you 30% back on your whole installation—is ending on December 31, 2025. Like, actually ending.
A typical 5 kW system in Colorado runs about $14,400 right now (that's October 2025 pricing, roughly $2.88 per watt). Take 30% off, and you're down to about $10,080 out of pocket. You're saving close to $4,320 from this credit alone.
Same story as always: you've got to own the system, either cash or financing. Leases don't count. And you need federal tax liability to actually use it. If you don't owe enough in one year, it carries forward.
Here's what's different: legislation passed in July 2025 killed this credit for residential solar starting January 1, 2026. They axed it almost a decade early. And since solar installations take months from your first consultation to actually flipping the switch, if you're even thinking about this, you need to move now. Not next spring. Now.
2. Colorado Property Tax Exemption
Colorado exempts residential solar from property taxes across the whole state. Your system has to be under 100 kilowatts (which covers pretty much every home system) and used mainly for your house.
Solar bumps up your home's value. Normally, that means higher property taxes, but Colorado says you don't pay property tax on whatever value the solar adds. This exemption sticks around for as long as you've got the panels.
Colorado property tax rates are all over the map, depending on your county, but dodging that annual increase adds up over 25 years.
3. Colorado Sales Tax Exemption
Colorado doesn't charge the state's 2.9% sales tax on solar equipment. On a $14,400 system, you're saving about $418.
It just happens automatically when you buy—nothing to apply for. Fair warning, though: this is just the state sales tax. Most city and county sales taxes still apply. Boulder area's different—they've got a rebate program that basically refunds you the local sales tax you paid.
4. Utility Company Rebates
This is where Colorado gets really interesting, and it varies a ton depending on who your utility is.
Xcel Energy Solar*Rewards: Xcel offers $1 per watt for income-qualified folks and people in Disproportionately Impacted communities, up to 10 kW systems. That could be up to $10,000 in rebates. The problem? The 2025 budget's already gone. They might reopen applications in early 2026, but by then, you'll have lost that federal credit. Worth checking with Xcel if you qualify, but timing's tight.
Holy Cross Energy: These guys give $250 per kW for systems up to 6 kW, then $100 per kW for anything between 6-25 kW. So on a 5 kW system, you're getting $1,250 back. On a 7 kW system, you'd get $1,600 total ($250 x 6 kW + $100 x 1 kW). These rebates are first-come, first-served, though, so funds run out.
Black Hills Energy: They offer $1 per watt for systems between 0.5 kW and 25 kW. On a 5 kW system, that's $5,000 back. They also do $100 per kW for combined solar and battery systems. Total rebate caps at $1,000 per customer.
Colorado Springs Utilities: Provides $0.02 per watt. Not exactly life-changing, but it's something.
5. EnergySmart Colorado
This is a nonprofit that teams up with local governments and utilities to offer solar rebates. The amounts bounce around a lot depending on where you live—anywhere from $400 to $2,500.
Programs change all the time, and funding's limited, so you've got to check what's actually available in your specific area right now.
6. Local City and County Programs
City of Boulder Solar Grants: Income-qualified residents and nonprofits can snag grants up to $8,000 for rooftop solar. Applications are first-come, first-served.
Solarize Summit (High Country Conservation Center): Folks in Breckenridge, Frisco, Silverthorne, and unincorporated Summit County get $1,650. Frisco residents get $2,400. Plus, there's a 5% discount (up to $750) if you use the program's installer. The 2025 program has reached capacity and is no longer accepting contracts, but you can join the 2026 waitlist.
City of Fort Collins: Offers up to $4,000 when you combine solar and battery rebates.
7. Colorado RENU Loan
The Residential Energy Upgrade (RENU) Loan gives you financing up to $75,000 for up to 20 years. Interest rates are competitive, depending on your credit score and which participating credit union you go with.
No down payment, no collateral needed (unlike a home equity loan), fixed monthly payments, and no prepayment penalty. It's backed by the Colorado Clean Energy Fund, which has ties to the state government.
This isn't free money, but it's a solid way to finance if you can't drop fourteen grand all at once.
8. Colorado Solar for All (Not Live Yet)
Colorado got $156 million in federal funding to create a Solar for All program for low- and moderate-income households. The Colorado Energy Office is working on it as of October 2025.
When it launches, it should provide free solar installations for some qualifying low-income households, plus community solar and multifamily options. The single-family program aims to serve about 976 homes across the state with fully subsidized solar.
It's not available yet, but it's worth keeping an eye on if you might qualify based on income.
9. Net Metering
Colorado's got solid net metering. When your panels crank out more power than you're using, that excess goes to the grid, and you get kilowatt-hour credits on your utility account. You use those credits later when you need to pull from the grid.
It's one-to-one credit at full retail rate, which is better than in a lot of states. All the major Colorado utilities do this—Xcel Energy, Black Hills Energy, Holy Cross Energy, and most municipal utilities.
10. Battery Storage Incentives
If you're throwing batteries into the mix, there are extra incentives:
Xcel Energy Battery Rebate: Up to $5,000 for installing Tesla Powerwall or SolarEdge batteries ($350 per kW of storage), plus $100 a year for up to 5 years if you let them tap into your battery for grid management.
Colorado State Tax Credit for Batteries: Colorado throws in a 10% state tax credit on eligible battery equipment like Powerwall—worth about $1,200.
What You're Actually Looking At
The math right now depends entirely on whether you can squeeze your installation in before December 31, 2025, and which utility you've got.
Best case (Holy Cross Energy customer, install before year-end): That $14,400 system drops to about $10,080 after the federal credit. Add the Holy Cross rebate (around $1,250-$1,600), skip the sales tax ($418), and you're down to an effective cost of around $8,400-$8,900. You're cutting close to 40% off the total.
Worst case (no utility rebates, install after December 31, 2025): You're paying the full $14,400 minus just the sales tax exemption. Without that federal credit and utility rebates, you're looking at $14,000+ and way longer payback periods.
Colorado's electricity rates have been climbing—they're sitting around 14-17 cents per kWh depending on your utility. That helps solar make sense financially. And Colorado gets killer sun—over 300 sunny days a year in many areas. With the federal credit and utility rebates (if you qualify), most Colorado homeowners hit payback around 8-11 years. Without the federal credit, it stretches to 14-17 years or more.
Just keep in mind that federal credit only works if you're paying federal income taxes, and only if you install by December 31, 2025. Given how tight the timeline is and how fast utility rebate funds disappear, it's probably smart to talk with your installer about your specific situation sooner rather than later.
Frequently Asked Questions
How We Rank Solar Installers
Our main goal is to provide homeowners like you with top-rated solar companies you can trust. Our solar experts analyzed thousands of local and nationwide installers to get to the bottom of who is best in a specific location. The solar company ranking methodology is based on gathering input from homeowner surveys, consulting with industry experts, and extensive research into the solar energy market. Here are the things we believe are the most important to consider when choosing a solar company.
In short, here’s how we pick top installers:
- Company that has been in business for over five years as it indicates stability, reliability, and successful installations.
- Local solar companies over big national ones are covering multiple areas, and they can provide better personal attention and learn more about the solar needs and regulations in their area.
- Companies with hands-on experience and a wealth of projects under their belt are more likely to deliver efficient and timely installations that cater to specific customer needs.
- Companies that handle their own installations instead of outsourcing to subcontractors ensure a higher caliber of work and nurture a culture of excellence and accountability in service.
- Select a company that has a good overall reputation and reviews on sites like SolarReviews, BBB, Google Maps, and Yelp.
- The company is licensed and insured and holds relevant certifications such as NABCEP certification.
- Companies that offer a wide selection of high-quality solar panels and related products and work with reputable brands.
- Companies that provide flexible financing options such as solar loans, leases, or power purchase agreements.
- Installers that provide substantial workmanship warranties and system performance guarantees.
Read more:
Our Methodology
What Made Us Choose Sources for Expert Score?
How We Classify Solar Installers: What Matters Most?
What to Look for In a Solar Company
To ensure that you partner with a great provider that can meet your needs of going solar, look for the following:
- Make sure the solar installer has industry-standard certifications, such as those from the North American Board of Certified Energy Practitioners (NABCEP), indicating that they meet the gold standard in renewable energy installations. Also, verify if they are licensed, bonded, and insured for residential solar projects in your area. If subcontractors are involved, check their credentials as well.
- Prioritize installers with a proven track record in solar installations, ideally with at least 5+ years of experience. Ask about the number of systems they’ve installed and their project portfolio. A competent installer should openly discuss the solar panels, inverters, and batteries they use if they help to take advantage of local solar incentives and rebates, and warranty coverage specifics.
- Your installer should be forthcoming about the installation process and answer any questions you might have, like “How many solar panels will I need? Why?”, “Can you give me a detailed cost breakdown based on my energy consumption?”, “What solar panel brands do you install? Why?”, etc.. They should also be transparent about their use of subcontractors, detailing their roles and how their work will be supervised.
- A preliminary evaluation of your roof’s condition is the groundwork. The installer should advise on necessary repairs to ensure it’s ready for solar panel installation and clarify responsibilities for any potential roof damage during the process. Discuss aesthetic concerns, such as the placement of solar panels around roof vents or the possibility of relocating vents for a more visually appealing setup.
- Check the installer’s reputation through online reviews and testimonials. They should be able to connect you with past customers willing to share their experiences. Personal recommendations from friends or neighbors who’ve gone solar can also be invaluable.
- Solar installation costs can vary widely, so obtaining multiple quotes is advisable. Experienced installers will adjust their offers to your home’s specifics—size, energy needs, etc. For an objective cost comparison, calculate the price per watt of the proposed system, giving you a standardized basis to evaluate different quotes.
Should You Choose a Local Solar Installer or a Big National Company?
Always choose a local solar company over a big national corporation. Small local companies that operate in a distinct local area are better than multi-state and national solar companies and large corporations. It’s the small local companies who get the best reviews on our website, and it’s the national multistate companies who get very poor reviews. Why so, you may ask?
Solar is a local service business, for the most part, and it is extremely difficult to run a solar company and offer good customer service to many locations from a central office.
Local ones have a community connection, they know better the incentives and regulations in the area, and they simply care more about you than large businesses trying to get into your pocket and overprice you. While multi-state solar companies might try to convince you by financial stability and “quality of installations across different locations”, try to choose a local company that meets all your criteria.
What Does a Solar Installation in Longmont, Colorado Look Like?
Here’s how a solar system installation will look like once the design for your solar system is approved:
- First, a solar installer should estimate your energy needs and analyze your annual and monthly electricity consumption, which you can find on utility bills measured in kilowatt-hours (kWh). Such calculations will help you understand potential savings, the payback period, and the system size you need.
- A home energy audit is something every experienced solar company would do to understand the size and output needed.
- Next question on the list: are your house’s roof conditions good enough for installation? A solar installer should carefully inspect the roof and ensure its conditions and orientation are good to go, how and where to better place solar panels and wire the system.
- Next, they will design the system and show you how it’s going to look.
- You will usually need a permit to install solar panels from your local authorities, and the solar provider should handle all the paperwork.
- The entire process might take up to 3 months depending on the state and local regulations, while the system installation is usually up to 3 days (might take longer depending on roof conditions and system complexity).
- The installation crew should always clean up and remove any debris, leaving your house in good condition.
- When the system is installed, it should be checked and approved by local municipality inspection.
- If you’re connecting your system to the grid, it has to be wired to your local utility system. You’ll apply for connection through your utility company, which will also want to inspect your system to ensure it’s following utility guidelines. Some installers may help you with this step, so always ask. Once you have all the permits, your system will be up and running, powering your home with solar.
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