GroundRosterBlak Diamond Plumbing & MechanicalLicensed
| Name | Blak Diamond Plumbing & Mechanical |
| Company | Herbert Tittle |
| License number | 101-816866 |
| License type | Water Well Pump Installation Contractor |
| License status | Active — IDPH licensed water well contractor |
| Based in | McHenry, Illinois 60050 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Pump installation: licensed to install, repair, and replace well pumps, pressure tanks, and the piping between the well and the building.
How to verify this license
We publish the license details exactly as they appear in Illinois's official licensing records; we do not vouch for the business itself. Before hiring, look up license #101-816866 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Illinois Dept. of Public Health - Water Well Contractor licences, last checked 2026-08-17. Verify at the official source.
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