C Mattes Inc is Charlie and Sonja Mattes. Not a franchise, not a regional rollup, not a company where you get a different crew every visit. Charlie is in the field. Sonja is on the phone. Both owners, both working.
C Mattes Inc was built on a simple premise: the contractor who answers the phone should be the same person who shows up on-site. In the septic and sewer business, that distinction matters more than most homeowners realize — until something goes wrong.
Based in Cicero, New York, we serve all of Onondaga County and the surrounding communities. Our work spans the full range of residential septic services: new system installation, routine pump-outs, drain field repair, real estate inspections, sewer hookups, and after-hours emergencies.
Every project is permitted through the Onondaga County Health Department. Nothing gets buried without a county inspector's sign-off. That's not exceptional — that's the minimum standard. What's less common is a contractor who actually does it that way every time, without exception.
When you call C Mattes, you're calling Charlie or Sonja. The estimate they give you is the one that shows up on the invoice. The schedule they commit to is the one they show up for. That's the whole business model.
Every credential listed here is active and verifiable. If you're buying a home and need documentation for your attorney, or if you're a property manager who needs proof of insurance, call Sonja — she'll send whatever you need same day.
Two owners. Two jobs. One company.
Charlie runs the field. He's the one with the equipment, the one coordinating with the inspector, and the one who won't leave a job until the system is working and the grade is restored. Homeowners across Central New York come to know Charlie as the contractor who shows up, does the work right, and doesn't disappear after the invoice is paid.
Sonja handles scheduling, permit coordination, and every customer interaction from first call to final invoice. She's the one who tracks the county health department timelines, makes sure you have the paperwork you need for closing, and picks up when you call at 8pm on a Saturday. If she says Thursday, it's Thursday.