Keystone Plumbing LLC
Keystone Plumbing LLC holds Minnesota plumbing contracting license PC150338 (Plumbing Contractor), registered in COTTAGE GROVE. It appeared as Issued in the state's nightly license file at our last check.
What a Plumbing Contractor is: A licensed plumbing business. This is the license a company needs to contract for plumbing work in Minnesota; it must employ a master plumber. All license classes explained
The state license record
From MN DLI public data| License number | PC150338 |
| Class | Plumbing Contractor |
| License holder | Keystone Plumbing LLC |
| DBA name | – |
| Type | Business license |
| Location on file | 8161 Jewel Ave S, COTTAGE GROVE, MN, 55016 |
| Phone on file | 651-528-3268 |
| Status | Issued |
| First issued | April 29, 2026 |
| Expires | December 31, 2027 |
| Enforcement action | None in the state file |
Verify before you hire
DLI license lookup ↗
Search PC150338on the state's own system (iMS) to confirm the license is current today.
DLI enforcement actions ↗
The state publishes plumbing enforcement actions monthly, with names and order details.
Verify insurance and workers' comp →
A license is necessary, not sufficient. Ask for the certificate of insurance and check comp coverage before work starts.
Watch this license →
Mid-project? Get an email if PC150338 changes status in the nightly state file.
Is this your company?
A free claimed page is coming: your own description, service area, and contact info, clearly labeled as provided by you. The state license record above will stay exactly as DLI publishes it, no matter what. The record is never for sale.