Core Drilling
| CONTRACTORS | PHONE | CONTACT PERSON | |
| AIR MASTERS | 636-680-2100 | johnr@airmasters.com | JOHN RUNDQUIST |
| ALBERT ARNO INC |
314-383-2700 | garyk@albertarno.com | GARY KUNNEMANN |
| AMERICAN MECHANICAL | 636-326-4500 | americanmechllc@sbcglobal.net | MICHAEL SMITH |
| BAR SERVICES INC | 314-731-5050 | rfryestl@yahoo.com | ROBIN BORDERS |
| C E JARRELL CONTRACTING CO | 314-291-0100 | ||
| CONCRETE CORING CO | 314-646-0415 | chris@concretecoringstl.com | CHRIS NAUMANN |
| CORRIGAN CO | 314-771-6200 | ||
| DRUMMOND MECH. CONTR. INC | 573-443-4901 | wsd@socket.net | WILLIAM STEVEN DRUMMOND |
| EMCO REFRIGERATION | 314-427-7477 | service@emcorefrig.com | WAYNE EILERMAN |
| G W S CONTRACTORS INC | 573-358-3040 | kschmidt@gwsmech.com | KERRY SCHMIDT |
| GARDNER E F PLBG CO | 314-535-4564 | GREG GARDNER | |
| GRIFFINETTI CONCRETE CUTTING LLC | 636-376-2924 | tgriffonetti@charter.net | ROCKY GRIFFONETTI |
| GROSS MECHANICAL CONTRS | 314-645-0077 | goldr@grossmechanical.com | ROB GOLD |
| GWS CONTRACTORS INC | 573-358-3040 | ||
| HABERBERGER INC | 314-631-3324 | neilh@haberbergerinc.com | NEIL HABERBERGER |
| ICON MECHANICAL CONTR | 618-452-0035 | ||
| JOBAIRE INC | 314-894-1535 | ||
| JOHNSON CONTROLS INC | 1-866-680-8103 | JOHN COZZOLINO | |
| LANGFORD MECHANICAL | 573-243-3238 | langfordmechanical@sbcglobal.net | ROB LANGFORD |
| MAHN PLUMBING INC | 636-586-1471 | wm@mahnplumbing.com | MARK MAHN |
| MURPHY CO | 314-997-6600 | ||
| OFFICER MECHANICAL | 573-474-3554 | asbury@officermechanical.com | GREG ASBURY |
| QUALITY HTG | 314-721-1263 | kevinquality@sbcglobal.net | KEVIN KRAEMER |
| RAIDER MECHANICAL INC. | 573-518-1444 | tmorrow@brick.net | TONY MORROW |
| RIVER CITY MECHANICAL CONTR | 573-243-8135 | ron@rivercitymech.net | RON SEABAUGH |
| RJ NEUBERT PLBG | 314-849-5191 | rjneubert@aol.com | BOB NEUBERT |
| SOLDIERS PLUMBING | 314-982-1210 | soldiersplumbing@soldiersplumbing.com | O'RION JACKSON |
| STATE MECHANICAL SERVICES | 314-427-8177 | rjones@statemech.com | RICH JONES |
| TEEL MECHANICAL | 573-642-9648 | tmsi@ktis.net | RICHARD TEEL |
| UNIVERSAL MECHANICAL | 573-893-8099 | jbwolken@socket.net | JOHN WOLKEN |
| YORK INTERNATIONAL | 414-524-3988 |