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Monday 8am - 4pm Tuesday 8am - 4pm Wednesday 8am - 4pm Thursday 8am - 4pm Friday 8am - 4pm

DePue Mechanical, Inc.

Name: DePue Mechanical, Inc.
Address: 113 S. Ridge Road, Minooka, IL, 60447, US
Telephone: +18152552500

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DePue Mechanical, Inc.

DePue Mechanical: industrial and commercial contracting services. Follow for insights and updates. Full Service Mechanical Contractor For Your Business.

We handle all stages of the process including planning, execution, and follow-up. We specialize in:
Boiler and Code Welding;
Industrial Piping;
Commercial HVAC;
Sheet Metal;
Maintenance Services;
Skid Fabrication;
Design Services;
Prime General Contracting;
Equipment Setting;
Steel Fabrication.

06/05/2026

Meta glasses meets safety glasses and welding hood… didn’t go quite as planned.🧑‍🏭🤷👓
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06/04/2026

A 44-year-old air handler is not built for convenience.�

At PPC Packaging, our service crew recently cleaned the evaporator coil inside an aging air handling unit that’s been running for more than four decades.�

Getting to the coil meant climbing inside the unit and working through years of buildup in a tight, dirty access area.�

That coil is doing important work. It helps pull heat and humidity out of the air. When it gets packed with dirt and debris, the whole system starts fighting itself.�

Less airflow.�Less cooling.�More strain on the equipment.�

And in a production facility, that shows up fast.�

This service helped open the coil back up, improve airflow, and give the system a better shot at keeping up without beating itself to death.�

Old equipment has a way of making simple jobs complicated.

Our crew handled it and kept the unit moving.�
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06/02/2026

Out in Batavia, our crew is working underground on a portion of the PIP-II project.

Inside the Linac tunnel, we're installing the CDS warm piping package, comprising nearly 3,000 linear feet of pipe ranging from ½" to 10" and approximately 840 welded joints across the system.

That kind of work starts before the first weld is made.

Material has to be moved into the tunnel, staged, handled, lifted, and installed in the right sequence. Pipe supports have to be set. Welds have to be tracked. Access has to be planned. And once the work is in place, the as-built documentation has to match what was installed in the field.

It is a tight underground environment, so the job depends on coordination between supervision, layout, rigging, welding, and installation.

For our team, this is the kind of work that shows what mechanical contracting really looks like beyond the drawings: skilled tradespeople, controlled ex*****on, and a lot of details coming together underground.

Strong work by the field team as this project continues to move forward. Follow along for more project updates like this!
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05/27/2026

Our service team was on-site at PPC Packaging in Buffalo Grove for a compressor replacement at their packaging plant.

The compressor may be the part everyone points to, but the real work is in everything around it.

Our techs are flushing the system, adding new refrigerant, and making sure the replacement has the clean start it needs to run properly. That kind of work takes time, patience, and a good eye for the details most people never see.

In a packaging plant, reliability matters. Equipment has a job to do, and so do we.

Proud of the team for handling this one thoroughly and doing the kind of repair work that helps keep production moving.
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05/25/2026

Today, we pause to remember and honor the men and women who gave their lives in service to our country.

Their sacrifice is not forgotten.

Wishing everyone a safe and meaningful Memorial Day.

05/22/2026

Gen Z in the trades 😐
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05/21/2026

DePue was recently on-site performing maintenance on a fin fan heat exchanger for Project Rocky Road.🪨 🚧

The scope included disassembling critical components so the unit could be thoroughly cleaned and returned to proper condition.

Fin fan heat exchangers help cool hot process fluids by moving ambient air across finned tubes. When those components collect dirt, debris, or buildup, cooling efficiency can be reduced.

That makes cleaning an important part of keeping the system at the right temperature.

For industrial facilities, even small drops in heat transfer can create larger issues over time. Proper maintenance helps support equipment reliability, system performance, and long-term uptime.

This work is a good example of the maintenance that keeps critical process equipment doing its job.
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05/18/2026

New work underway at Illinois Valley Community College.

Our Sheet Metal and HVAC Service crews are on site with Vissering Construction, getting rolling on their brand new Agricultural Education Center. The foundation was put up before our team got there, and now we’re starting to stack the mechanical side of the job: VRF systems, refrigeration piping, condensers, and ductwork.

For anyone who doesn’t speak HVAC all day, VRF stands for Variable Refrigerant Flow.

The short version: it lets different parts of the building get the heating or cooling they need without making the whole system run wide open.

That matters in a college building.

Classrooms, labs, offices, corridors, and common areas all get used differently. One room is packed. The next one is empty. A lab may need tighter control. An office may barely need anything. VRF gives the building more zone-by-zone control instead of treating every space like it has the same load.

Our part is making sure the install is right from the start: clean refrigerant line routing, solid duct layout, proper equipment placement, and coordination with the other trades before everything gets covered up.

Because once the lids go in, nobody thinks about pipe runs, hangers, duct transitions, or access clearances.

Follow along for more project updates like this!
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05/14/2026

Back on site for the next phase of an ongoing food manufacturing project.

Right now, our crew is piping in a new glycol heater to support the temperature-control side of the process.

Earlier phases focused on the chocolate liquor piping. This phase helps move heated glycol where it needs to go, supporting process temperature, consistent product flow, and the production equipment tied into the system.

For the field team, that means clean routing, solid tie-ins, proper supports, and leaving access where maintenance will actually need it later.

Not glamorous. Pretty important.

Good work by the crew keeping the next phase moving.

05/13/2026

Expectation vs reality of being a pipefitter😩
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Address

113 S. Ridge Road
Minooka, IL
60447

Opening Hours

Monday	8am - 4pm
Tuesday	8am - 4pm
Wednesday	8am - 4pm
Thursday	8am - 4pm
Friday	8am - 4pm

Telephone

+18152552500

Website

http://www.depuemechanical.com/

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