If you’re interested in becoming a pre-qualified plumber, fill out and submit the Pre-qualified Plumber Application to the City’s Building Inspection Department located at the City/County Government Building at 160 South Macy Street.
Current Pre-Qualified Plumber/Contractors
| Business Name | Address | Phone Number | |
| Mand Boring & Trenching | PO Box 1541 Fond du Lac WI | patrickmand@sbcglobal.net | (920) 960-3635 |
| Mand Plumbing LLC. | PO Box 1341 Fond du Lac WI | mandplumbing@att.net | (920) 924-4575 |
| Mies Rooter & Plumbing | N7333 Mosher Dr Fond du Lac, WI | miesrooter@gmail.com | (920) 922-7273 |
| Wagner Utility & Excavating | W2750 County Rd Q Pine River, WI | wagnerutilityexc@outlook.com | (920) 570-0024 |