We commonly install fire suppression systems into new construction, but we are also experts with installing sprinkler systems into existing buildings – no matter their age.

SJ Carlson is a union fire sprinkler contractor with our own in-house installation team. For the last 30+ years we’ve designed and installed industrial-grade fire sprinkler solutions into a wide variety of applications. 

Notably, we completed a retrofit fire sprinkler system for Union Station in Chicago.

Our team is proficient with designing creative pipe routing strategies to work around finished walls, ceilings, floors, and any other obstacles.

We also provide NICET Level 4 certified engineering for every project, which is the highest level of certification available for 3D modeling.

We can handle every step of the process, from engineering and design to fabrication and installation. Call us today at (815) 636-1993 and let us provide your retrofit fire sprinkler system.