Lab/Medical Gas
| 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 & R MECHANICAL | 314-739-1800 | jeilerman@crmechanical.com | JOHN EILERMAN |
| CLIMATE SERVICE LLC | 314-968-8400 | ssteinkiste@climateservicestl.com | SCOTT STEINKISTE |
| CUNNINGHAM PLUMBING CO | 660-646-5834 | wayne@cpcmo.com | WAYNE CUNNINGHAM |
| DRUMMOND MECH. CONTR. INC | 573-443-4901 | wsd@socket.net | WILLIAM STEVEN DRUMMOND |
| ENVIRONMENTAL ENGINEERING | 573-636-3566 | richard@enviroeng.com | RICHARD PEMBERTON |
| FDL MECH CONTR | 636-584-8562 | fdlmech@aol.com | RICH LONG |
| G W S CONTRACTORS INC | 573-358-3040 | kschmidt@gwsmech.com | KERRY SCHMIDT |
| GROSS MECHANICAL CONTRS | 314-645-0077 | goldr@grossmechanical.com | ROB GOLD |
| HABERBERGER INC | 314-631-3324 | neilh@haberbergerinc.com | NEIL HABERBERGER |
| HAUSER MECH | 636-970-4416 | paulh@hausermechanical.com | PAUL HAUSER |
| HERBIG MECHANICAL INC |
636-661-5773 |
kevin@herbigmechanical.com |
KEVIN HERBIG |
| HYDRO-TEMP INC | 314-738-9696 | vhoff@hydrotempinc.com | VICTOR F HUFF JR |
| LANGFORD MECHANICAL | 573-243-3238 | langfordmechanical@sbcglobal.net | ROB LANGFORD |
| MAHN PLUMBING INC | 636-586-1471 | wm@mahnplumbing.com | MARK MAHN |
| MAX MECHANICAL CONTR | 314-550-7955 | john@maxmechanicalstl.com | JOHN BLAYLOCK |
| OFFICER MECHANICAL | 573-474-3554 | asbury@officermechanical.com | GREG ASBURY |
| PROPIPE INC | 314-638-7000 | jmh@propipe-american.com | JACQUELINE HEMPEN |
| 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 |
| ROCK HILL MECH CONTR CO | 314-966-0600 | bschnitzer@rhmcorp.com | ROBERT SCHNITZER, JR |
| SPECIALIZED MECH | 573-443-4985 | leswegener@aol.com | |
| 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 |
| WIEGMANN & ASSOC | 636-940-1056 | dboschert@wiegmannassoc.com | DAVID BOSCHERT |