CostInspector helps homeowners understand, compare, and verify the costs of home services across the United States. The brand offers free interactive calculators, pricing guides, and a quote-checking tool designed to make contractor estimates easier to assess. Its tools cover 14 service categories, including heating and cooling, electrical work, plumbing, water heaters, garage doors, sewer lines, foundations, tree removal, gutters, mold remediation, septic systems, appliances, and property restoration.

Homeowners can estimate repair, replacement, and installation costs; compare options such as repair versus replacement or tank versus tankless water heaters; and explore potential energy savings, tax credits, and rebates. The quote checker lets users upload a photo of an estimate or enter details manually, then compares line items with contractor pricing data and provides fair price ranges, including parts, labor, and markup. Estimates can be adjusted by ZIP code to reflect regional labor rates and cost of living. CostInspector presents its tools as free and requiring no signup. It also offers the option to request an estimate from local professionals.