Ann Arbor's winters do nothing to stop cockroaches, because the roaches that cause trouble live indoors. In a city with thousands of student apartments, converted houses and busy restaurants, the German cockroach finds ideal habitat: warm kitchens, steady moisture and shared walls. Once established in a building, it can be remarkably hard to remove without a coordinated plan.
PestMinistry is a referral service. We connect residents and businesses with independent, licensed cockroach control providers. We do not apply treatments ourselves.
The roach you are probably dealing with
The German cockroach is small, light brown, and marked with two dark bars behind the head. It hides in tight, warm spaces close to food and water, such as behind refrigerators, inside stoves and around sink plumbing, and it reproduces quickly. Oriental cockroaches, which are dark and glossy, occasionally turn up in cool, damp basements in older Ann Arbor houses. American cockroaches are infrequent and usually linked to commercial or institutional buildings with warm utility spaces.
How they get around the city
- Moving boxes and secondhand furniture during the August and May turnovers.
- Used appliances and cardboard from stores and delivery services.
- Shared plumbing chases and wall voids between apartments.
- Food-service deliveries to restaurants on Main Street and State Street and elsewhere.
Houses around Central Campus and in Kerrytown that have been divided into multiple units are particularly susceptible, because a problem in one unit can easily reach another.
Red flags
- Roaches seen at night, or in daylight when populations are high.
- Pepper-like droppings in drawers and on shelf edges.
- Egg capsules stuck to surfaces or dropped in corners.
- A stale, musty smell in warm cabinets.
- Insects trapped on sticky monitors within a day or two.
How treatment works
A technician begins with an inspection and sticky monitors to locate hot spots. Gel baits placed in hinges, under counters and in appliance voids are the usual workhorse, because roaches feed on them and spread the effect through the population. Growth regulators help prevent maturing, and dusts may be used inside wall voids. Sealing gaps around plumbing reduces movement. In shared houses and apartment buildings, providers prefer to treat every unit together; otherwise, survivors reappear in untreated spaces. Expect follow-up visits over several weeks.
Preparation and habits
- Clear cabinets under sinks and around the stove before the visit.
- Remove grease and food debris, especially behind appliances.
- Fix leaks and wipe sinks dry nightly.
- Store food, including pet food, in sealed containers.
- Take out trash and recycling frequently.
- Recycle cardboard boxes promptly.
Tenants and landlords
If you rent in Ann Arbor, report roaches in writing and allow access for treatment. Landlords should keep track of complaints by unit, coordinate service and ask the provider about preventive monitoring. Tenants moving out can reduce the spread by cleaning thoroughly and avoiding the reuse of cardboard boxes.
Get matched
Call (844) 725-1661 to connect with a licensed provider serving Ann Arbor.
Frequently asked questions
Can I bring roaches with me when I move?
Yes, eggs and nymphs can ride in boxes and appliances. Inspect and clean items before packing.
Do store-bought bombs work?
No. They tend to scatter roaches and can reduce the effectiveness of baits.
Is one roach cause for alarm?
It could be a straggler, but check with sticky traps for a week.
Can roaches affect health?
Yes, they can trigger asthma and allergies and contaminate food surfaces.