Grease Trap Cleaning in Boise, ID: Cost, Rules & Top Companies (2026)

By the GreaseTrapFinder Editorial Team · Updated August 24, 2026 · Idaho rules cited to official sources

Running a commercial kitchen in Boise? Staying on top of grease trap cleaning keeps you out of a sewer backup and compliant with Idaho's FOG rules. Here's what it costs in Boise, 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 Boise

Boise prices near the national baseline; dense provider competition across the metro keeps rates competitive.

Trap / interceptor sizeTypical 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 Boise

When FOG and solids reach 25% of capacity; typically at least every 90 days (under Boise City Code Chapter 2 (Sewer Use); §11-05-07 (Violations)). 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.

Boise Grease Trap Requirements, Permits & Penalties

ProgramCity of Boise Pretreatment Program (official page)
Governing codeBoise City Code Chapter 2 (Sewer Use); §11-05-07 (Violations)
Permit / registrationContact the Pretreatment Program to determine if an Individual Wastewater Discharge Permit is required
PenaltiesUp to $1,000 per day per violation (misdemeanor)

Always get a signed manifest at every service and keep your records — that's the proof inspectors ask for. For the full Idaho breakdown (hauler licensing, record retention, state penalties), see the Idaho grease trap regulations guide.

Top Grease Trap Cleaning Companies in Boise

Screened companies serving Boise and the surrounding metro:

See all grease trap companies in Boise → or get free quotes from several at once.

Frequently Asked Questions

How much does grease trap cleaning cost in Boise?

In Boise, expect roughly $150–$475 for small-to-medium traps and $400–$1,200 for larger interceptors per service. Boise 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 Boise?

When FOG and solids reach 25% of capacity; typically at least every 90 days 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 Boise?

Contact the Pretreatment Program to determine if an Individual Wastewater Discharge Permit is required. See the Idaho regulations guide for details.

What are the penalties for grease trap violations in Boise?

Up to $1,000 per day per violation (misdemeanor) Keep a signed manifest from every cleaning and your maintenance records on file — that's what inspectors ask for first.

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