food process piping services


Our team of high-quality pipe welders and process piping team offers an array of Chicago welding services including steam piping, ammonia piping, and layout piping.

As a member of Chicago’s Local 597 Pipe Fitters Union, D&H Refrigeration, Inc. is able to provide some of the best union pipe welders in the world.

Rigorous union training and union testing must be completed to pass the United Association’s x-ray welding tests. Welding Low/High carbon steel, austenitic stainless steels, aluminums, and dissimilar materials are some examples our welders can x-ray certify weld.

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Our Pipe Welding Capabilities:

  • Carbon Steel
  • Stainless Steel
  • Aluminum
  • Copper
  • Nickel
  • Brass
  • Magnesium
  • Dissimilar Metals
  • Bare Metal Arc Welding
  • Carbon Arc Welding
  • Flux Cored Arc Welding
  • Gas Metal Arc Welding
  • Gas Tungsten Arc Welding
  • Plasma Arc Welding
  • Shielded Metal Arc Welding

For any inquiries on pricing and/or to request a free quote or consultation, please contact us or by simply calling us at 708.308.0002.

D&H Refrigeration, INC. only employs pipe welding professionals that have been “UA Certified” through Chicago’s local union 597.

UA Certified Pipe Welders

The United Association promotes the highest standards of qualifications and training in our industry so that our members have the skills and knowledge they need to be competitive. We are committed to continuously recruiting and training future generations of world-class piping professionals.


Our piping team are experts in understanding the components required for highly efficient piping process functions. 


Ammonia refrigeration systems can reduce energy costs and improve efficiency. Our experienced technicians understand the care that is required for installation and maintenance.


Steam is a highly reliable, efficient, and wide-used application for food and beverage processing. Our mechanical experts have the knowledge to help with many commercial applications.

Compressed Air

Compressed air is used reliably in many food production processes, and D & H Refrigeration experts have the experience to assist with system design and maintenance.

Natural Gas

Natural gas can be used for a wide range of uses in industrial applications. Our team can provide natural gas piping installation, replacement, and repair for a variety of commercial applications.

Chilled Water

Chilled water systems are a necessary process in food & beverage manufacturing. D & H mechanical experts specialize in a wide variety of chiller and refrigeration systems.


D & H Refrigeration offers a customized solution for industrial and commercial entities, tailored to your specific chemical piping needs.

Medical Gas Systems

Medical gas systems are imperative for healthcare facilities to deliver a multitude of gases in the safest way possible. Our piping services include design, implementation, and continued service and maintenance.


D & H provides custom Co2 systems that meet critical process requirements in a large group of commercial and industrial applications.


Nitrogen is used in eliminating harmful substances including moisture, oxygen impurities, and more. We perform leading-industry piping services to the biggest commercial entities.

Process HVAC

Process HVAC is critical in the control of air supply using pressure, cooling and heating, and filtration. We can help with system design and fabrication for a variety of industries.


Our team offers complete hydraulic piping systems including the system design, implementation, and continued maintenance to the industrial sector.

High Pressure Wash Systems

The team at D & H specializes in centralized pressure systems that can span across multiple areas of an industrial facility.

Preventive & Predictive Maintenance

Our experienced refrigeration team will thoroughly overview your mechanical system components and customize a preventive maintenance program designed to fit your needs and budget. We do not believe a “template” approach when creating preventive maintenance programs. 

Maximum Energy Efficiency And A Cost-effective Solution Can Start Now.

Let’s talk about your commercial or industrial system design needs. Let’s build a plan to get you there.