The Colorado Examining Board of Plumbers does plumbing inspections in jurisdictions requesting this service. Click here to view a map of the State of Colorado inspection area by state inspector.
The following list of county building departments may be useful in locating the inspection authority outside the state inspection jurisdiction. Note: this is not a complete list.
| County | Phone | Fax (If Available) |
| Adams | 303-654-6100 | 303-659-0577 |
| Arapahoe | 720-874-6600 | 720-874-6611 |
| Boulder | 303-441-3500 | 303-738-7894 |
| Chaffee | 719-539-2218 | 719-539-7442 |
| Clear Creek | 303-679-2300 | 303-679-2440 |
| Denver | 720-865-2505 | 720-865-2675 |
| Dolores | 970-677-2383 | 303-660-0041 |
| Douglas | 303-660-7497 | 303-660-0041 |
| Eagle | 970-328-8730 | 970-328-7185 |
| Elbert | 303-621-2341 | 303-621-3166 |
| El Paso | 719-520-6444 | 719-520-6397 |
| Garfield | 970-945-1377 | 970-384-3470 |
| Gilpin | 303-582-5214 | 303-582-5440 |
| Grand | 970-725-3347 | 970-725-0100 |
| Jackson | 970-723-4660 | 970-723-4706 |
| Jefferson | 303-271-8525 | 303-271-8941 |
| La Plata | 970-382-6219 | 970-382-6299 |
| Larimer | 970-498-7010 | 970-498-7006 |
| Mesa | 970-244-1631 | 970-244-1639 |
| Moffat | 970-824-5517 | 970-824-9191 |
| Phillips | 970-854-2454 | 970-854-3811 |
| Pitkin | 970-920-5200 | 970-920-5198 |
| Prowers | 719-336-8025 | 719-336-2255 |
| Pueblo | 719-543-0002 | 719-583-6549 |
| Rio Blanco | 970-878-0235 | 970-878-5796 |
| Routt | 970-870-5566 | 970-879-3992 |
| San Juan | 970-387-5522 | 970-387-5583 |
| Sedgwick | 970-474-2485 | 970-474-0954 |
| Summit | 970-453-2561 | 970-453-3535 |
| Teller | 719-689-2988 | 719-686-7900 |
| Washington | 970-345-2701 | 970-345-2702 |
| Weld | 970-356-4000 | 970-352-0242 |
| Yuma | 970-332-5796 | 970-332-3411 |
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