Why solar installers in Chicago overpay for leads
The solar market is full of resold shared leads and unqualified homeowners: no roof, no credit, no ownership. Paying for exclusive, pre-qualified leads is cheaper per install even at a higher CPL.
Chicago's Mexican-American market is large, loyal and heavily referral-driven — paid search plus review velocity compounds fast here. On top of that, Chicago accounts almost always mix Spanish and English keywords inside one campaign, which inflates CPCs on both sides and hides which language is actually producing booked work.

