Chicago
Chicago Pest Report — Vol. 2026

The Things
Living In
Your Walls.

Chicago's century-old infrastructure — balloon-frame walls, shared utility chases, aging radiators — creates ideal conditions for German cockroaches, Norway rats, and bed bugs. We know every hiding place.

0

Rat complaints filed with Chicago 311 in one year

+0%

Rise in bed bug reports since 2021 — Chicago ranked #1 in the nation

0+

Cockroaches in a single untreated colony behind your walls

Pest control technician inspecting a Chicago building interior with professional equipment

Infestation Density by Neighborhood

High
Medium
Lower
Illinois Dept. of Public Health LicensedChicago Association of Realtors PartnerCook County Certified#1 Rated on Google — 847 ReviewsSame-Day Emergency ResponseNPMA MemberServing Chicago Since 2009German Cockroach SpecialistsNorway Rat EliminationBed Bug Heat TreatmentIllinois Dept. of Public Health LicensedChicago Association of Realtors PartnerCook County Certified#1 Rated on Google — 847 ReviewsSame-Day Emergency ResponseNPMA MemberServing Chicago Since 2009German Cockroach SpecialistsNorway Rat EliminationBed Bug Heat Treatment
German Cockroach

The Tenant That Never Pays Rent.

Blattella germanica — Chicago's most persistent building resident.

German cockroaches exploit Chicago's shared utility chases and aging plaster walls to spread between units in multi-family buildings. A single female produces up to 400 offspring in her lifetime. Heating systems maintained at 65–70°F create year-round breeding conditions. Their shed exoskeletons and fecal matter trigger asthma in children — a documented public health crisis in Cook County.

50–60 days

Egg to adult

30,000+

Colony size

BlaG1 & BlaG2

Allergen trigger

Heated buildings

Year-round threat

Professional exterminator inspecting kitchen appliances and cabinets for German cockroach activity in a Chicago apartment

Trust & Authority

After six months of failed DIY attempts across three units, Exterminate cleared our entire building in two treatments. Zero callbacks in eight months.

Diane Kowalski

Property Manager, 48-unit Logan Square

Illinois Dept. of Public Health

Licensed Pest Management Professional — Category 7B Commercial

German cockroach allergens are present in 78% of urban apartments — the primary asthma trigger for Chicago children.

Found evidence in the pantry after the first frost. They were here the next morning, found the entry point, sealed it, and treated the whole wall cavity.

Marcus Okonkwo

Homeowner, Wrightwood Ave

Same-day response available

Dealing with a german cockroach problem?

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Norway Rat

Forty Thousand Complaints. One Solution.

Rattus norvegicus — threading through century-old balloon-frame walls.

Chicago filed over 50,000 rat complaints in a single year. West Town and Logan Square consistently rank highest. Norway rats exploit the voids in balloon-frame construction — vertical wall cavities running floor to roof with no fireblocking — that define most of Chicago's pre-war housing stock. When temperatures drop below 40°F, entire colonies relocate from alleys into basements within 48 hours. Chicago has spent over $80 million on rat control since 2019. The problem isn't slowing down.

50,173

2024 complaints

$14M/yr

City budget

30+

Diseases carried

½ inch

Entry gap needed

Pest control technician inspecting the exterior foundation and entry points of a Chicago two-flat building for Norway rat activity

Trust & Authority

We had tenants threatening to break leases. Exterminate did a full structural assessment, identified three entry points in the foundation, and eliminated the colony. No complaints since.

Tomasz Wiśniewski

Portfolio Manager, 6 buildings

Chicago Association of Realtors

Preferred Vendor Partner — Residential & Commercial Pest Management

West Town ranked #1 of 77 neighborhoods for rodent service requests 2019–2024.

Health department was coming Saturday. Called Thursday night. They responded Friday morning, cleared the issue, and we passed with zero violations.

Priya Venkataraman

Owner, West Randolph Restaurant

Same-day response available

Dealing with a norway rat problem?

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Bed Bug

Riding the Blue Line Home.

Cimex lectularius — Chicago's most-traveled uninvited guest.

For the fifth consecutive year, Chicago ranks #1 on Orkin's national bed bug list. Bed bugs travel in luggage, winter coats, and secondhand furniture — spreading through the Blue Line corridor and into Gold Coast high-rises with equal indifference. A single female deposits up to 500 eggs in her lifetime. During the day they hide in mattress seams, behind electrical outlets, and inside picture frames. Heat treatment at 120°F eliminates all life stages — including eggs — without chemicals.

#1 — 5 yrs

National rank

Up to 500

Eggs per female

Months

Survival without host

120°F

Heat kill temp

Professional pest control technician conducting a thorough bed bug inspection of a hotel room mattress and box spring in Chicago

Trust & Authority

Three units affected after a tenant returned from travel. Exterminate heat-treated all three in one day. Board had zero complaints from residents about the process.

Sandra Fitzgerald

HOA President, Lake Shore Drive

Chicago has ranked #1 on the national bed bug list for five consecutive years.

NPMA

National Pest Management Association — QualityPro Certified

I manage 12 short-term units in Lincoln Park. After one incident, I put Exterminate on retainer. Quarterly inspections, immediate response. My reviews haven't dropped since.

Aisha Nwosu

Short-Term Rental Manager, 12 units

Same-day response available

Dealing with a bed bug problem?

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Free Resource

The Chicago
Pest Calendar.

A seasonal PDF guide mapping which pests emerge in which months across which Chicago neighborhoods — written by our technicians who've worked every zip code in the city for 15 years.

WinterDec–Feb
  • Norway Rats (wall migration)
  • German Cockroaches (peak breeding)
  • Bed Bugs (travel season)
SpringMar–May
  • Rat colony expansion
  • Carpenter Ants
  • Silverfish
  • +1 more
SummerJun–Aug
  • Mosquitoes
  • Ants
  • Flies
  • +2 more
FallSep–Nov
  • Rats (indoor migration)
  • Stink Bugs
  • Spiders
  • +2 more

Download the 2026 Chicago Pest Calendar — free.

No spam. Unsubscribe anytime. We've served Chicago since 2009.

Client Testimony

The Record
Speaks.

847 verified Google reviews. Average 4.9 stars. Property managers, restaurant owners, and Lincoln Park homeowners — all with the same story.

"

"Forty units. One call. Three weeks. Done. The property manager down the street still has cockroaches. I don't."

Bridget Callahan

Portfolio Manager · Callahan Properties — Logan Square

40 units cleared

"I had a health inspection at 10am Saturday. They were at my door Friday at 7am. We passed. That's the whole story."

Rafael Domínguez

Owner · Fuego Cocina — West Randolph

Passed inspection

"The droppings were in the pantry. By the time I called, they'd already mapped three probable entry points over the phone just from my description."

Jennifer Park

Homeowner · Lincoln Park, Wrightwood Ave

Same-day response

Licenses & Certifications

Illinois Dept. of Public Health

Licensed Cat. 7A & 7B

Chicago Association of Realtors

Preferred Vendor Partner

NPMA QualityPro

National Certification

Cook County Health

Registered Operator

BBB Accredited

A+ Rating Since 2011

EPA Certified

Pesticide Applicator

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