One of the most common questions homeowners ask when considering solar is whether they'll need to pay for an initial assessment. The good news is that the vast majority of reputable solar companies offer completely free, no-obligation site assessments and installation quotes.
A professional solar assessment typically includes several valuable components at no charge. The installer evaluates your roof's orientation, pitch, and structural condition to determine how many panels it can support and how they should be positioned. They analyze shading patterns throughout the day and across seasons using satellite imagery, drone technology, or on-site measurements.
Your energy usage history is another critical input. The installer reviews your past 12 months of electricity bills to understand your consumption patterns and properly size a system that offsets the right amount of your usage. Oversizing wastes money, while undersizing leaves savings on the table — a good assessment finds the sweet spot.
Based on this analysis, you receive a detailed proposal that includes the recommended system size in kilowatts, the number and type of panels and inverter, the total installation cost before and after incentives, estimated annual energy production, projected 25-year savings, and available financing options including loans, leases, and power purchase agreements.
Be cautious of any company that charges for a basic assessment or uses high-pressure tactics during the consultation. The solar industry standard is free, transparent evaluations. If a company won't provide a clear, written quote without requiring immediate commitment, consider that a red flag.
Getting assessments from multiple installers — we recommend at least three — gives you comparison data and negotiating leverage, ensuring you get the best system at the best price for your home.