The Rodent Contractor Questions Every Warehouse Tenant Should Ask

Three hundred parcels a week leave a 6,000 square foot leased bay in Livonia, and it takes about four chewed cartons out of that run to flatten a month of margin. The refunds arrive one at a time, each one logged as damage in transit, and for several weeks nobody ties them back to the pallet racks. Shrink wrap comes back gnawed open. Carton corners come back shredded, the carrier absorbs the blame, and the damaged-goods rate keeps climbing with no traceable cause. Somewhere in that stretch the operator goes looking for rodent control livonia mi, and a dozen companies come back sounding identical. The one that actually stops the loss is the contractor who inspects the building, reports every entry point in writing and works a scheduled exclusion plan, not the one who sprays a baseboard once a month.

Chewed Packaging Shows Up In Refunds First

Rodent damage in a leased bay is an accounting problem before anyone calls it a pest problem. Product loss hides inside the refund rate, the refund rate hides inside cost of goods, and by the time the number is large enough to argue about in a Monday meeting it sits two or three steps away from the racks that caused it. Put illustrative figures on the bay above: at 300 parcels a week and a hypothetical $60 average order, a damaged-goods rate drifting from 1 percent to 2.5 percent runs roughly $270 a week once refunds and replacement freight are counted. The case I run into most often is a tenant who assumed the landlord’s building-wide service already covered it, because the invoice said pest control on it.

The difference between a spray route and an exclusion program works the way chargeback handling works in an online store. One approach refunds every disputed order forever and books it as a cost of doing business. The other fixes the checkout step generating the disputes, and the line item quietly goes away. Monthly bait stations are the refunds, sealing the openings is the fix, and only one of those two ever ends the spending.

Questions That Separate Contractors From Sprayers

The vendor call is where this gets decided, and most of it gets decided in the first ten minutes. Every company on the phone will say they handle commercial accounts and warehouses. The questions worth asking are the ones a spray route cannot answer well, so put them on the table before the contract, not after a second bad month.

• Will I get a written inspection report naming every entry point you found, and how soon after the first visit? A good answer names a document and a turnaround, not a verbal walkthrough at the dock.
• What gap size does your exclusion work seal down to? A serious contractor answers in fractions of an inch, because openings the width of a pencil are the ones being used.
• Who seals the dock door sweeps and the conduit penetrations, your crew or my landlord’s maintenance vendor? A good answer sorts the lease question before the first invoice rather than after it.
• What warranty covers the exclusion work itself, and what voids it? Look for a term measured in years and a plain list of exclusions you can read in one sitting.
• How will you show me the program is working three months in, without me taking your word for it? Station logs, trap counts and dated photos beat a signed service ticket.

Answers that come back in specifics are worth paying more for. A contractor who commits to a written report, a gap standard and a warranty term is describing work that can be checked, while a company quoting a flat monthly rate with no inspection is selling attendance. (Ask for the photos too, since any crew doing this properly is already taking them.) Mice do not respect a lease line, so settle who seals what with the property manager early, in writing, while everyone is still friendly.

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Choose The Vendor Before Peak Season Arrives

Rodent pressure in southeast Michigan climbs with the first cold nights, which means the contractor with capacity in September is booked out in November. Facility Management Insights reported in April 2026 that pests cost warehouses an estimated $10 billion to $20 billion a year through product spoilage and recalls, and that a gap as small as 1/4 inch under a dock door is enough for mice to get inside. That gap is a maintenance detail nobody photographs until product starts coming back from customers. A tenant shopping rodent control livonia mi in September gets a walkthrough inside a week, while the same call in late November gets a waitlist and a temporary bait plan.

Treat the selection like any other operating decision with money attached to it. Score the bids on the inspection report, the exclusion scope and the warranty, then let price break the tie between the two that survive. A bay running 40 pallet positions and 300 outbound parcels a week cannot absorb a quiet 1.5 point swing in damaged goods for a full season, and the vendor who documents the building is the only one who makes that swing visible.