Warren particulars
Warren's website has a Rat Problem request page in its How Do I menu, run by the Property Maintenance Division at city hall, 586-574-4500. The division's web page gives us no instructions to pass on, so we cannot say what it tells you. Call there first about rodents, and bring photos of the signs and where you saw them. Macomb County's health department, which serves Warren, does West Nile, mosquito and tick surveillance, and its page calls West Nile endemic in the county.
MDHHS counts five human cases and seven positive mosquito pools in Macomb County as of October 16, 2026. The county pages describe surveillance, not spraying. Environmental Health Services answers at 586-469-5236, and Warren has no separate city health department. Warren has 138,128 residents, a median home value of $181,900 and 83.0 percent of homes built before 1980 (Census ACS 2023). With housing that old, a fair inspection names the animal or insect it found, shows the evidence and says what it will do about the entry.
No city license applies on top of MDARD's statewide system, since MCL 324.8328 preempts duplicate local rules. Nearby are Madison Heights, 4.1 miles, Hazel Park, Eastpointe, Roseville and Fraser.
Rodents in Warren: what to know
Warren's website has a Rat Problem page in its How Do I menu, served by the Property Maintenance Division at city hall, 586-574-4500. The division's web page gives no instructions we can confirm, so we cannot say what it tells residents to do, and the call is worth making with photographs ready.
In a city of 138,128 residents where 83.0 percent of homes were built before 1980 (Census ACS 2023), the EPA's signs and sealing advice apply to a call to the city, a company or both: steel wool or a patch for holes, and removal of food, water and shelter. A company applying rodenticide must give you the product's common name and the label's precautions at the time of application.
Permits for rodents in Warren
MDARD's category 7D covers using pesticides against vertebrate pests such as birds, rats and mice, and 7A covers pests in and around dwellings.
Many cities run their own building department, so start by asking the City of Warren building department who issues pest control permits.
Rodents: urgent or not
- Droppings or chewed packaging in a space where you prepare or store food: clean up, seal the food, and book the same week.
- A single mouse sighting with no droppings in food areas.
- Noises in a wall or ceiling that stop in daylight.
What to try before you call
Try this first: photograph the signs and write down where each one is, then call the Property Maintenance Division.
- Put food in sealed containers and clean up spills and standing water.
- Find holes by looking along the walls and floors for droppings and chewing.
- Seal what you can reach with steel wool or a patch.
- Note where you see the signs and photograph them.
- Ask the company to show you every entry point it found.
What rodents cost
The estimate below is the Michigan-wide one, adjusted for Michigan wages and not for Warren in particular. The same table is on the rodents page. How we estimate costs. Prices as of Oct 19, 2026.
| Item | Figure | What it is |
|---|---|---|
| Estimated range, not a quote | $125 to $680 per job | Built from one national published range, adjusted by the Michigan pest control worker median wage ratio (0.98). No Michigan pest control company price is shown, because none of the companies we looked at published a regular price. |
| Pest control worker wage, Michigan median | $21.38 an hour | What pest control workers are paid (O*NET republishing BLS, May 2025), not what you are charged. Percentile data, not re-checked against the BLS table. |
| State fee, certified commercial applicator | $75 | Paid by the person, not added to your bill as a line. Michigan statute and MDARD agree. |
| State fee, pesticide application business license | $100 a year, expires every December 31 | Every company that applies pesticides for hire needs one, in addition to its applicators' credentials. |
How we estimate costs: the Estimated range row is a model, not a quote. It takes one published national range for this job (a cost guide from a third-party site that we have not verified and do not cite) and multiplies it by Michigan's pest control worker median wage ratio to the US (0.98, BLS May 2025 data read through O*NET OnLine). The wage and state fee rows in the table are what pest control workers are paid and what the state charges to license them, and neither is a price. We have not collected quotes, and we found no Michigan pest control company that publishes a regular price. Full method.
Questions about rodents
How do I keep rodents away in Michigan?
Remove food, water and shelter, and seal the holes, using steel wool or a patch, according to the EPA. DNR suggests metal flashing or hardware cloth and a capped, screened chimney for small wild rodents, with the caveat that its page covers wild species.
What qualifies as a rodent infestation?
The EPA does not set a count; it lists signs: droppings near food, nesting material, and chewed holes in walls and floors. If you see those, act on the entry points and ask a company to inspect.
Is it worth getting an exterminator for mice?
It is when you cannot find or reach the entry points, or when you want bait handled by a licensed applicator. Sealing is the part that lasts, so ask the company what it will do about the holes.