Top 10 Tips for Selecting the Best Solar Panel Installer
Switching to solar energy is a smart financial and environmental decision, but choosing the right installer is just as important as selecting the right panels. A poor installation can lead to inefficiencies, safety risks, and even costly repairs. To help you avoid common pitfalls, here are the top 10 tips for selecting the best solar panel installer for your home or business.
1. Check for Proper Licensing & Certifications
A reputable solar installer should hold:
State and local contractor licenses (verify through your state’s licensing board).
NABCEP (North American Board of Certified Energy Practitioners) certification the gold standard in solar installation.
Manufacturer certifications (e.g., Tesla, SunPower, or LG-approved installers).
Why it matters: Unlicensed installers may cut corners, leading to system failures or voided warranties.
2. Look for Experience & a Strong Track Record
How long has the company been in business? (5+ years is ideal).
How many installations have they completed? (100+ is a good benchmark).
Do they have experience with your roof type? (Tile, metal, flat, etc.).
Pro Tip: Ask for case studies or before/after photos of past projects.
3. Read Customer Reviews & Check References
Check:
Google Reviews (4.5+ stars is a good sign).
Better Business Bureau (BBB) for complaints.
Solar-specific review sites (EnergySage, SolarReviews).
Ask for references from past customers.
Red Flags:
Multiple complaints about leaks, delays, or poor communication.
No online presence or fake reviews.
4. Compare Multiple Quotes (At Least 3-5)
A detailed quote should include:
System size (kW) and estimated energy production (kWh/year).
Equipment details (panel brands, inverter type, mounting hardware).
Warranty coverage (product vs. workmanship).
Financing options (loans, leases, cash purchase).
Avoid the cheapest option it may mean low-quality equipment or inexperienced labor.
5. Assess Equipment Quality & Technology
Solar Panels:
Efficiency (20%+ is premium).
Durability (25–30-year lifespan).
Tier 1 manufacturers (SunPower, LG, Panasonic).
Inverters:
String inverters (cost-effective).
Microinverters (better for shading, more expensive).
Mounting & Racking:
Corrosion-resistant materials (aluminum, stainless steel).
6. Understand Warranties & Guarantees
A trustworthy installer should offer:
Panel performance warranty (25–30 years, 80%+ output).
Inverter warranty (10–25 years).
Workmanship warranty (10+ years for labor).
Avoid: Companies offering less than 10 years on installation work.
7. Verify Financing Options & Incentives
Payment Options:
Cash purchase (highest long-term savings).
Solar loans (low-interest, ownership benefits).
Leases/PPAs (no upfront cost but lower savings).
Incentives:
A good installer will help you claim:
Federal Solar Tax Credit (30% off).
State/local rebates.
Net metering benefits.
8. Ask About Post-Installation Support
Key questions:
Do you handle permits and inspections?
What’s your process for repairs or maintenance?
Is system monitoring included? (e.g., an app to track energy production).
Warning: If they disappear after installation, you could face issues later.
9. Avoid High-Pressure Sales Tactics & Scams
Red flags:
"Limited-time discount" pressures.
Unrealistic promises ("Zero electricity bills forever!").
No physical office or local presence.
Pro Tip: Legitimate installers give you time to decide.
10. Check for Local Expertise & Community Reputation
- Are they familiar with your area’s weather conditions? (Snow, hurricanes, etc.).
- Do they know local permitting and utility requirements?
- Have they worked with your utility company before?
Why it matters: Local installers resolve issues faster and understand regional incentives.
Final Checklist Before Hiring
✅ Licensed, insured, and NABCEP-certified.
✅ 5+ years in business, 100+ installations.
✅ Strong warranties (25+ years on panels, 10+ on labor).
✅ Positive customer reviews and references.
✅ Transparent, competitive pricing (not the cheapest).
✅ Offers maintenance and post-install support.
FAQs
How long does solar panel installation take?
Typically 1 to 3 days, but permitting and inspections can take weeks.
Can I install solar panels myself?
DIY solar is risky improper installation can void warranties and cause safety hazards.
What’s the average cost of a solar panel system?
Between $15,000 to $25,000 (before incentives) for a 6kW system.
How do I verify a solar company’s license?
Check your state’s contractor licensing board or the BBB.
What if my installer goes out of business?
Choosing the right solar installer is crucial for maximizing your investment. By following these 10 tips, you’ll avoid scams, ensure a high-quality installation, and enjoy decades of clean, efficient energy. Choose a company with strong financials and manufacturer-backed warranties.