GroundRosterJonathan J. GranzLicensed
| Name | Jonathan J. Granz |
| License number | 13405 |
| License type | Title 5 System Inspector |
| License status | Approved — MassDEP Title 5 Approved System Inspectors list |
| License expires | 2028-06-30 |
| Based in | South Hamilton, Essex County, Massachusetts |
"Based in" is the city and county of the address on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
Request a quote from Jonathan J. Granz
What this license covers
- Inspection: licensed to inspect existing septic systems; the license you want for a home-purchase inspection.
How to verify this license
We publish the license details exactly as they appear in Massachusetts's official licensing records; we do not vouch for the business itself. Before hiring, look up license #13405 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: MassDEP Title 5 - Approved System Inspectors, last checked 2026-08-17. Verify at the official source.
Are you Jonathan J. Granz? Claim this listing to show your business name on it. It's free, and we confirm every claim before anything changes.