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24 Hour Service/7 Days a week

Service Tel (210) 223-9151

Fax (210) 223 6002

Services Available

HVAC, General Piping, Plumbing, Medical Gas Piping. See our list of services below.


Protect your investment, don't let your money go down the drain. Call A.J. Monier's Service Department today!




A. J. Monier  & Co., Inc. is committed to providing around-the-clock support to our customers. Our trained technicians are available 24 hours a day, seven days a week for all types of emergencies or maintenance for your HVAC, refrigeration, plumbing and process equipment. We also offer preventive maintenance, equipment replacement and installation services.


Service available 24 hours a day, 7 days a week!


Our Service Division offers:

  • Maintenance programs to meet your needs and protect your equipment investment.

  • Expert technical assistance for all types of plumbing, heating, air conditioning & medical gas systems, including: 

    • Engineering / design for diagnosis & repair

    • Diagnostic repair work on all types of HVAC and Plumbing equipment.

    • General and process piping repairs

    • Sheet metal and piping fabrication

  • Experienced technicians

  • Technicians dispatched twenty-four hours a day, seven days a week

  • Retrofit, restoration and remodel renovations, modifications, and upgrades to existing equipment and systems

  • Complete installation capabilities

Plumbing Service

Drain Cleaning & Repair Sewer Line Repair & Replacement
Gas Line Replacement & Repairs Annual Backflow Testing, Repairs and Installation
Sewer Camera Video Inspect Medical Gas Piping Repairs & Installation
Faucet & Fixture Replacement Hot Water Heater & Boiler Repair & Replacement
Water Line Repairs & Replacement Sewage Pump Repair & Replacement
Annual Gas Testing Smoke, Hydrostatic & Pressure Testing
Process Piping Repair & Replacement



HVAC Service

Air Conditioning Units - Repair all makes and models Package Unit, Condensing Unit, & Air Handling Equipment Repaired & Replaced
Chiller Service & Replacement Cooling Tower Repair & Replacement
Boiler Repair & Replacement Pumps, Heat Exchangers, Valves Repaired & Replaced
Control Systems (DDC & Pneumatic) Repaired Air Compressors, Driers Repaired & Replaced
Exhaust Systems Repaired & Replaced Refrigeration Systems Repaired & Replaced
Heating Systems Repaired & Replaced Preventive Maintenance Contracts


Call us today for your service needs!


Service Tel (210) 223-9151

Fax (210) 223-6002


Copyright ⓒ [2007] [A. J. Monier & Company, Inc.]. All rights reserved