Data Sources
Where our contractor data comes from and how we collect, refresh, and maintain it.
Last updated: March 2026
Primary Data Source: Google Maps
The majority of contractor data on GrowLocal Hub is sourced from Google Maps public business listings. This includes:
- Business name and category
- Rating (out of 5.0) and total review count
- Business address
- Business hours
- Phone number (where publicly listed)
- Website URL (where publicly listed)
This data is collected via automated crawling of public Google Maps search results for specific city + service category queries. It is refreshed on a rolling 30-day cycle.
Contractor-Submitted Data
Contractors may claim their GrowLocal Hub profile and submit additional information including:
- Business description
- License number and insurance documentation
- Service areas and radius
- Photos and gallery
- FAQ answers
- Years in business
Contractor-submitted data is displayed as-is and is not independently verified by GrowLocal Hub. Homeowners should independently confirm license and insurance status before hiring.
Cost Data
Cost estimate ranges displayed on our cost calculator pages are derived from a combination of:
- Published homeowner cost surveys (HomeAdvisor, Angi, and similar platforms)
- Regional Bureau of Labor Statistics data for labor costs
- Material cost indices from supplier pricing data
Cost data is provided for general informational purposes only. Actual costs vary widely by market, contractor, project scope, and timing. Always get multiple written quotes.
Data Accuracy and Corrections
We strive to keep our data accurate and up to date. If you notice incorrect information — a business that has closed, an incorrect phone number, or other errors — please contact us with details and we will investigate promptly.
Data Freshness
Each ranking page displays a "Last Updated" indicator showing when that market's data was last refreshed. Markets are updated on a 30-day rolling cycle, prioritizing the highest-traffic cities.