Grease Trap Cleaning in Chicago, IL: Cost, Rules & Top Companies (2026)
Running a commercial kitchen in Chicago? Staying on top of grease trap cleaning keeps you out of a sewer backup and compliant with Illinois's FOG rules. Here's what it costs in Chicago, how often you're required to clean, the permit and regulation basics, and the local companies that handle it.
What Grease Trap Cleaning Costs in Chicago
Chicago prices near the national baseline; dense provider competition across the metro keeps rates competitive.
| Trap / interceptor size | Typical cost per service |
|---|---|
| Small trap (under 50 gal) | $115 – $240 |
| Medium trap (50–500 gal) | $150 – $475 |
| Large interceptor (500–1,500 gal) | $400 – $1,200 |
| Large interceptor (1,500+ gal) | $475 – $2,500 |
Typical ranges per service — your price depends on trap size, accessibility, and frequency. Recurring contracts usually run 15–30% below one-off rates. Estimate yours with the cost estimator or see the full pricing guide.
How Often You Must Clean It in Chicago
Minimum every 90 days; 25% capacity rule applies regardless of schedule; monthly for high-volume kitchens (under Chicago Municipal Code §§18-29-1003.3 through 18-29-1003.3.8). The industry-standard 25% rule applies either way: clean before fats, oils, and grease reach a quarter of your trap's capacity, because past that point grease passes straight through to the sewer. High-volume kitchens (fryers, BBQ, seafood) often need service more often than the minimum.
Chicago Grease Trap Requirements, Permits & Penalties
| Program | Chicago Department of Water Management / MWRD of Greater Chicago FOG enforcement (official page) |
| Governing code | Chicago Municipal Code §§18-29-1003.3 through 18-29-1003.3.8 |
| Permit / registration | Interceptor installation permit required; sizing per Illinois Plumbing Code; cleaning logs (dates, gallons removed, hauler info) must be available for inspection |
| Penalties | From $500 per incident, escalating to $10,000 for repeat or severe violations; grease-caused sewer blockages can add repair costs |
Always get a signed manifest at every service and keep your records — that's the proof inspectors ask for. For the full Illinois breakdown (hauler licensing, record retention, state penalties), see the Illinois grease trap regulations guide.
Top Grease Trap Cleaning Companies in Chicago
Screened companies serving Chicago and the surrounding metro:
- Quality Sewer Services Inc. · 5.0★ · (630) 227-0200
- Chicago Grease Trap Services · 4.9★ · (312) 626-4040
- Chicago Grease Trap Cleaners · 4.9★ · (888) 392-1465
- Chicago Grease Trap Cleaning · 4.9★ · (312) 626-4040
- Rooter Flush Sewer and Plumbing · 773-563-4543
- Chicago Plumbing Experts · 708-480-2073
- Chicago Hood Cleaning Services Inc · (779) 243-5188
See all grease trap companies in Chicago → or get free quotes from several at once.
Frequently Asked Questions
How much does grease trap cleaning cost in Chicago?
In Chicago, expect roughly $150–$475 for small-to-medium traps and $400–$1,200 for larger interceptors per service. Chicago prices near the national baseline; dense provider competition across the metro keeps rates competitive. Get 2–3 local quotes to compare — it's free.
How often do I have to clean my grease trap in Chicago?
Minimum every 90 days; 25% capacity rule applies regardless of schedule; monthly for high-volume kitchens Regardless of the calendar, clean before FOG and solids reach 25% of capacity — past that, grease escapes to the sewer, which is what triggers violations.
Do I need a permit for a grease trap in Chicago?
Interceptor installation permit required; sizing per Illinois Plumbing Code; cleaning logs (dates, gallons removed, hauler info) must be available for inspection. See the Illinois regulations guide for details.
What are the penalties for grease trap violations in Chicago?
From $500 per incident, escalating to $10,000 for repeat or severe violations; grease-caused sewer blockages can add repair costs Keep a signed manifest from every cleaning and your maintenance records on file — that's what inspectors ask for first.
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