Welcome to Langendorf Supply Company

We are the leader of Commercial HVAC supply in the St Louis Missouri and Greater Illinois Area. We proudly represent the most outstanding products lines in HVAC.
Langendorf Supply has been in the family for 35 years. See About Us for our full history.

FRP Solutions...Monoxivent

February 28, 2018

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We are a fully staffed and stocked Manufacturers Rep

Check out our Stock. We are Here to Help


Estimating Mechanical and Architectural Projects

We have a full team of estimators to provide accurate and concise bids to our contractors on or before project Bid Date


Excellence in Customer Service

Our Team of Sales Member and Support Staff are dedicated to working with Project mangers and field staff to complete projects the right way and on time.


On staff engineers

In any job, the design phase is crucial and we are available for design and product implementation support

Hours of Operation

Warehouse hours are 7 am - 3:30 pm

Office Hours
Mon: 8am - 5pm
Tue: 8am - 5pm
Wed: 8am - 5pm
Thu: 8am - 5pm
Fri: 8am - 5pm

ST LOUIS MO 4653 Crossroads Industrial Dr, Bridgeton, MO 63044  PH 314.291.4892

PEORIA, IL: 2000 West Pioneer Parkway Suite 22 Peoria, IL 61615  PH 309.693.0731

INDIANAPOLIS, IN: 7756 Moller Road Indianapolis, IN 46268  PH 317.844.4110

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