2025 Reviews

Best Solar Companies in Naperville, IL

We reviewed and ranked the top solar installers serving Naperville homeowners based on pricing, warranties, customer reviews, and local experience.

Top Picks

Our Top 4 Solar Companies for Naperville, IL

Updated for 2025. All companies verified, licensed in Illinois.

#1

Naperville Solar Pros

🏆 #1 Rated Local

Local Specialist · 12 years in business

4.9(312 reviews)
Naperville, Lisle, Wheaton, Downers Grove
NABCEP CertifiedA+ BBB RatingLocal family-owned25-year warranty

Pros

  • Deep Naperville market expertise
  • Fast permit processing knowledge
  • Excellent post-install service

Pricing & Warranty

Starting price: $2.85/W
Warranty: 25 years
Financing: Yes — 0% APR available
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#2

SunPower by Illinois Solar

⚡ Best Panels

National Brand (Local Dealer) · 8 years in business

4.8(198 reviews)
Chicago suburbs, DuPage County
SunPower Authorized DealerHighest efficiency panels40-year warrantyMonitoring included

Pros

  • Industry-leading panel efficiency (22.8%)
  • 40-year comprehensive warranty
  • Strong brand backing

Pricing & Warranty

Starting price: $3.20/W
Warranty: 40 years (SunPower Complete)
Financing: Yes — SunPower Financial
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#3

Midwest Solar Solutions

💰 Best Value

Regional Installer · 15 years in business

4.7(445 reviews)
Northern IL, Chicago metro
Most reviews in regionCompetitive pricingIL Shines certifiedBattery storage specialist

Pros

  • Large experienced team
  • Fast installation schedule
  • Battery/storage expertise

Pricing & Warranty

Starting price: $2.65/W
Warranty: 20 years
Financing: Yes — multiple lenders
Get Quote From Midwest
#4

ComEd Certified Solar Partners

⚡ Fastest Install

Utility Program Certified · 6 years in business

4.6(167 reviews)
DuPage and Will County
ComEd Interconnection ExpertFastest approval timesIllinois Shines specialistNo money down

Pros

  • Fastest ComEd interconnection process
  • IL Shines SREC maximization specialists

Pricing & Warranty

Starting price: $2.75/W
Warranty: 22 years
Financing: Yes — PACE financing available
Get Quote From ComEd
Our Methodology

How We Evaluate Solar Companies

We independently evaluate every company based on 8 key criteria specific to the Naperville, IL market.

01Years of experience in Illinois / DuPage County
02NABCEP installer certification status
03BBB rating and complaint history
04Customer review scores (Google, Yelp, EnergySage)
05Panel manufacturer partnerships and warranties
06Illinois Shines program participation
07Financing and $0-down options
08Post-installation service and monitoring

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