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Our Services

We offer a wide range of welding and mechanical services to fit our client’s needs.

From the HVAC system to industrial chillers and piping, Rojek Welding and Mechanical Services will repair, replace, install or maintain all the mechanical systems in your building.

Specialty Welding Services

Our skilled welders are adept at working with materials such as steel, aluminum, and stainless steel. Whether you need custom fabrication, repairs, or have an intricate welding project, we have you covered.

Service Highlights:

Shielded Metal Arc Welding (SMAW)

Gas Tungsten Arc Welding (GTAW)

Flux-Cored Arc Welding (FCAW)

Gas Metal Arc Welding (GMAW)

Specialty Welding
Mechanical Services

Mechanical Services

Our team excels in diagnosing and repairing a diverse range of equipment and machinery. Our technicians are well-versed in troubleshooting and providing efficient solutions to keep your operation running smoothly. 

Service Highlights:

Clean Room Work



Cooling Towers

Custom Rigging and Lifting

HVAC Systems (Specializing in Air Handlers, Heat Exchangers, and variable refrigerant flow (VRF))


High and Low-Pressure Steam Systems

Med gas

Refrigerant Piping

Specialty Medical/Lab Equipment Installations


Valves (actuators, controls, and pneumatic components)

Metal Fabrication

From custom designs to large-scale industrial projects, our metal fabrication services encompass a wide range of applications. Whether you require precision components or structural elements, our skilled craftsmen have the skills required to complete your project. We work with various metals including steel, aluminum, and stainless steel ensuring versatility and durability in every project. 


Service Highlights:

Custom Designs

Structural Fabrication

Welding Expertise

Repair Services

On-Site Fabrication and Repairs

Metal Fabrication
Steam Systems

High- and Low-Pressure Steam Systems

Our team specializes in designing, installing, and maintaining high- and low-pressure steam systems. 


Service Highlights:

Design and Engineering

Installation and Commissioning

Maintenance and Repairs

Upgrades and Retrofits

Safety and Compliance

Emergency Services

Boiler + Chiller Systems

Maintaining optimal temperature and comfort in your space is crucial. So whether you need routine maintenance, emergency repairs, or a total system overhaul, our team will help you identify and address issues quickly and efficiently. 


Service Highlights:

Boiler Installation + Repair

Chiller Installation + Repair

Cooling Towers

Hydronic Steam Piping Systems

Routine Maintenance


Emergency Services

Boiler & Chiller Systems
Pipe Fitting

Pipe Fitting

Pipe fitting is a critical trade that plays a central role in the functioning of various industries by ensuring the proper installation, maintenance, and functionality of piping systems. The expertise of our pipefitters contributes to safety, efficiency, and the overall success of industrial and construction projects. They are equipped to handle a diverse range of pipe fitting methods, ensuring the seamless integration of piping systems in various industries. Our team specializes in copper, Lokring, Swagelok, threaded, tubing, Victaulic, and weld fittings.  


Pipe Fitting Service Highlights:

System Installation

Pipe Fabrication

Maintenance and Repair

Testing and Inspection

Material Selection

Refrigerant Piping

Pneumatic Control Systems

Choose Rojek Welding and Mechanical Services for reliable pneumatic control system repair, maintenance, and seamless pneumatic to Direct Digital Control (DDC) updates. 

Our skilled technicians are well-versed in the intricacies of pneumatic control systems, offering comprehensive repair and maintenance solutions. Our commitment to safety and quality guarantees a smooth and reliable performance of your control systems.

Services Include:

System Diagnostics

Component Replacements

Preventative Maintenance

Pneumatic to DDC  Upgrades

DDC System Installation, Repair, and Service

If your system is due for a technological upgrade from pneumatic to a DDC system, our team specializes in seamless updates. Disruptions to your operation can be costly. Rojek Welding and Mechanical Services ensures a seamless transition utilizing cutting-edge technology to bring your system up-to-date. Your new DDC system is guaranteed to have optimized performance and advanced control capabilities. 


Benefits of a Direct Digital Control System:

Enhanced Efficiency Control

Energy Savings 

Decreased Operating Costs

Faster Response Time

Digital Interface


Maintenance, Repair, + Replacement Services

Our dedicated team offers a wide range of maintenance, repair, and replacement solutions to ensure the longevity and efficiency of your equipment. Our skilled technicians conduct thorough inspections and routine maintenance to identify and address potential issues before they escalate, minimizing downtime and maximizing the lifespan of your equipment. When unexpected issues arise, count on the Rojek team for efficient and effective mechanical repairs. 


Our Team Maintains, Repairs, and Replaces:

Mechanical Equipment and Systems

Pumps and Motors


Looking for a service that isn’t listed?

Contact us today!

Call 800-577-0373 or Complete the Form 

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