How to Choose the Right Solar Installer: A Homeowner’s Guide

Investing in solar energy is a big decision, and choosing the right installer is one of the most critical steps in the process. The right installer ensures your system is properly designed, installed, and supported for decades to come. Here’s a step-by-step guide to help you make the best choice.

1. Verify Credentials & Certifications

A reputable solar installer should have the proper credentials to ensure quality and compliance.

✅ NABCEP Certification – The North American Board of Certified Energy Practitioners (NABCEP) is the gold standard for solar professionals. This certification signals a high level of expertise.

✅ State Licensing – Ensure the installer holds the required state electrical or solar contractor licenses.

✅ Manufacturer Certifications – Some manufacturers, like Tesla, Enphase, and SolarEdge, offer installer certifications, which can lead to better warranty coverage.

2. Experience & Track Record Matter

🔹The longevity and experience of an installer can indicate reliability and expertise.

🔹 Years in Business – Choose an established company that has been around long enough to weather industry changes.

🔹 Number of Installations – Ask how many systems they’ve installed, especially in your area.

🔹 Specialization – If you need a battery storage system, ensure the installer has experience integrating batteries with solar.

3. Check Reviews & Reputation

What past customers say can be a strong indicator of service quality.

📝 Online Reviews – Look at Google Reviews, Yelp, Better Business Bureau (BBB), and SolarReviews.com.

🚩 Complaints & Red Flags – Be wary of unresolved complaints, aggressive sales tactics, or frequent service issues.

📞 References – Ask for past customer references and request to see completed projects.

4. Assess System Design & Proposal

A quality installer won’t take a one-size-fits-all approach.

🔍 Customized Design – A good installer evaluates your roof, shading, and energy use to create a tailored system.

⚡ Energy Offsets – The system should be designed to meet your energy needs and provide cost savings.

🔧 Panel & Inverter Brands – Ensure they use reputable brands with strong warranties.

5. Compare Pricing & Financing Options

Solar pricing varies, so shop around for competitive quotes.

💰 Competitive Pricing – Get at least three quotes to compare.

💳 Financing Options:

• Cash Purchase – Best ROI and long-term savings.
• Solar Loans – Low or no upfront cost with ownership benefits.
• Leases & PPAs – Lower upfront cost, but limited long-term savings.

🔢 Cost per Watt – Compare pricing in $/Watt (Total Cost ÷ System Size in Watts).

6. Understand Warranties & After-Sales Support

A strong warranty ensures peace of mind.

🛠️ Workmanship Warranty – Covers installation issues, typically 5–10 years.

🔋 Equipment Warranties:

• Solar Panels: 20–25 years (performance and manufacturer warranties)
• Inverters: 10–15 years
• Batteries: 10+ years (varies by brand)

📊 Performance Guarantees – Some installers guarantee your system will generate a minimum amount of energy.

🔎 Maintenance & Monitoring – Ask if they provide ongoing system monitoring and support.

7. Ensure They Handle Permitting & Utility Interconnection

Your installer should manage all necessary paperwork.

📜 Permits & Inspections – They should navigate local permitting requirements.

⚡ Utility Interconnection – The installer should handle the process of connecting your system to the grid and setting up net metering.

🏡 HOA & Zoning Compliance – If you have a homeowners association (HOA), they should assist with approvals.

8. Watch Out for Sales Tactics & Transparency

A trustworthy installer provides clear, honest information.

❌ Avoid High-Pressure Sales – Good installers educate rather than pressure you into a sale.

📄 Detailed Contracts – All costs, warranties, and system details should be clearly outlined.

🔍 No Hidden Fees – Ask for a full breakdown of costs, including permitting, labor, and any potential add-ons.

9. Consider Local vs. National Installers

Both have pros and cons.

🏠 Local Installers:
✔️ Better customer service
✔️ Stronger knowledge of regional regulations
✔️ More personalized experience

🌍 National Installers:
✔️ More financing options
✔️ Larger workforce
✔️ Mixed service reviews (varies by company)

🌦️ Climate Considerations

• Local installers have a better understanding of the weather impacts on your solar panel performance.

10. Understand the Installation Timeline & Project Management

Know what to expect once you sign your contract.

⏳ Installation Timeline – Ask how long it will take, from permitting to activation.

📞 Dedicated Point of Contact – A good installer provides a project manager to keep you informed.

Final Thoughts: Take Your Time & Choose Wisely

Selecting a solar installer is a crucial step in your solar journey. Don’t rush the decision—compare options, read reviews, and ensure you’re working with a reputable, experienced company.

• By following this guide, you’ll set yourself up for a smooth installation process and maximize the benefits of going solar.

Bonus Tip: Use a Solar Marketplace

If you’re unsure where to start, use platforms like EnergySage or Solar.com to compare pre-screened installers and get multiple quotes.