About Whetstone
Sharpening the Edge of
Home Service Businesses
Whetstone by Collins is an AI-powered marketing agency based in San Antonio, Texas, built exclusively for roofing contractors. We were founded on a simple observation: the roofing industry generates over $56 billion annually, yet the vast majority of contractors rely on word of mouth, door-knocking, and outdated websites to grow their business.
The contractors who dominate their markets — the ones with 500+ Google reviews, page-one rankings, and phones that ring after every storm — aren't just better roofers. They have better marketing systems. That's what we build.
By combining deep roofing industry expertise with the power of Manus AI, we deliver agency-quality results at a fraction of the traditional cost — making elite-level marketing accessible to every roofing contractor, not just the largest ones.
Our Mission
"To sharpen the competitive edge of home service professionals, transforming local businesses into market leaders through precision marketing and relentless growth strategies."
Our Core Values
Roofing-Only Focus
We don't serve dentists, restaurants, or law firms. Every strategy we build is informed by deep knowledge of the roofing sales cycle, storm seasonality, and insurance claim dynamics.
AI-Powered Execution
Manus AI handles the research, content drafting, and reporting that would otherwise require a team of five. That efficiency passes directly to you in the form of better results at a lower cost.
Transparent Results
You'll never wonder what your marketing is doing. Every month you get a clear report: calls generated, leads captured, cost per lead, and where your money went.
Partnership, Not a Vendor
We operate as an extension of your business — not a faceless agency that sends automated reports. Your growth is our growth, and we act accordingly.