Pest Control for Chicago Courtyard Buildings

Courtyard buildings typically house 18-36 units sharing one or two stairwells, a central boiler, common plumbing risers, and continuous wall assemblies that wrap the U-shape. Pests have unimpeded movement between units once introduced.

Most Chicago courtyards were built between 1910 and 1930, with original plumbing chases, electrical conduits, and wall voids that have never been sealed. These are essentially pest highways.

Bed bugs spread horizontally along shared walls and vertically up plumbing and electrical risers. Cockroaches use the same routes plus drain lines and trash chutes. Mice exploit gaps around radiator pipes that touch nearly every unit.

By the time multiple units are reporting issues, the building-wide population is usually already established in wall voids.

Single-unit treatment in a courtyard building almost always fails within 30-60 days. For active infestations affecting two or more units, building-wide treatment is the only reliable approach — every unit inspected, infested units treated, and adjacent units monitored.

We handle tenant notifications, prep instructions, scheduling logistics, and follow-up reporting. Property managers get a single point of contact and a single building-wide report.

Initial assessment, building-wide quote with per-unit pricing, scheduled treatment rounds, written reports per unit and per building, and ongoing prevention recommendations. We have completed courtyard programs throughout Rogers Park, Edgewater, Uptown, Albany Park, and Logan Square.