Garbage Disposal Installation & Repair in Chicago, IL

95% of disposal calls are one of these 6 problems.

1. Disposal Humming but Not Grinding (Jam)

• What's happening: Motor is getting power, but the flywheel is physically stuck
• Cause: Bone, fruit pit, silverware, bottle cap, or hard food wedged between flywheel and grinding ring
• DIY first (safely): Turn off power at the wall switch AND breaker. Use the Allen wrench (hex key) that came with the disposal in the hex hole under the unit. Rotate back and forth 1/4-turn each direction until flywheel spins freely. Press red reset button on bottom. Restore power and test.
• When to call us: DIY didn't work, or you can't find the Allen wrench
• Cost: $95 – $175 (15 – 45 minute visit)

2. Disposal Dead / Not Turning On

• Cause hierarchy:

1. Tripped reset button on bottom of unit (red button)
2. Tripped GFCI or breaker in panel
3. Failed switch (wall switch or batch-feed cap)
4. Burnt-out motor (end of life)

• Fix: Reset → test switch → test outlet → replace if motor burnt
• Cost: $95 – $175 for reset/switch/outlet; $285 – $725 for replacement if motor dead

3. Leaking Disposal

• Leak from top (sink flange): Old plumber's putty dried out — $115 – $185 to reseal
• Leak from side (dishwasher inlet or discharge pipe): Hose clamp or slip-joint gasket failed — $135 – $215 to replace
• Leak from bottom (motor housing): Internal seal failed — disposal is end-of-life, replace
• Cost: $115 – $725 depending on source

4. Loud Grinding or Rattling

• Cause: Silverware, bottle cap, coin, or bone stuck in grinding ring
• Fix: Turn off power, remove foreign object with pliers (never by hand)
• Cost: $95 – $175

5. Slow Draining / Standing Water

• Cause: Clog in P-trap or branch drain downstream of disposal
• Fix: Snake the drain (not through the disposal — from the P-trap access)
• Cost: $165 – $325 (may require full drain cleaning)

6. Unit Won't Stop (Runs Even When Switch Off)

• Cause: Failed switch stuck in "on" position
• Fix: Replace switch or install new batch-feed cap
• Cost: $125 – $215

Horsepower determines how much your disposal can grind without stalling. Here's how to pick.

Rule of Thumb

• 2 or fewer people: 1/2 HP is fine
• 3 – 5 people: go 3/4 HP — handles everything normal households throw at it
• 6+ people or entertainers: 1 HP minimum
• Any septic system: buy a septic-assist model (InSinkErator Evolution Essential) regardless of HP

Continuous Feed vs. Batch Feed

• Continuous feed (wall switch): 95% of residential — turn on, pour food in, run cold water
• Batch feed (stopper cap activates): Safer around children, slightly longer life; about $40 – $80 more

Brands We Install Most

• InSinkErator Evolution Compact, Excel, Essential, Pro — quietest on market, lifetime warranty on top models
• Waste King L-1001, L-3300, L-8000 — solid, long history, affordable
• Moen GX / Host Series — good mid-range value
• KitchenAid KCDB250 / KCDB-series — solid 3/4 HP units
• Salvajor — commercial grade for restaurants and heavy-use kitchens

Adding a disposal to a kitchen that doesn't have one requires more than swapping units. Here's what's involved.

What We Install

1. Dedicated electrical — We coordinate with a licensed electrician to run a new 15A or 20A circuit from the panel, terminated at an under-sink junction box with either a hardwired feed or a cord-and-plug. A separate wall switch (single-pole, 15A) controls power. Chicago code requires a dedicated circuit — no sharing with the dishwasher.
2. Sink drain modification — The current drain tailpiece comes out. A new disposal flange is installed at the sink basin (with plumber's putty under the flange and a mounting ring below). The disposal hangs from the flange and discharges into a new P-trap configuration.
3. Dishwasher connection (if applicable) — The disposal inlet has a knockout that must be removed with a hammer and screwdriver. The dishwasher drain hose connects to this inlet. Chicago code requires either an air gap on the countertop or a high loop under the counter to prevent backflow.
4. Testing — We run water and disposal for 2 – 3 minutes while checking every connection for leaks. Then we run the dishwasher drain cycle to confirm proper flow.

Cost Breakdown for First-Time Install

• Labor: $450 – $875 (includes all plumbing work)
• Disposal unit: $150 – $450 (you choose based on HP)
• Electrical (licensed electrician sub): $275 – $650 if new circuit required
• Wall switch + cover: $25 – $65
• Air gap (if required by inspector): $45 – $115
• Total: $945 – $2,175 for a first-time install with all new electrical

When a Permit Is Required

• Always for new dedicated electrical circuits (Chicago DOB electrical permit)
• Sometimes for plumbing modifications depending on extent (confirm during estimate)
• We pull all required permits and coordinate inspector visits

A well-maintained disposal lasts 12 – 15 years. A neglected one burns out in 4 – 6.

Do

• Run cold water before, during, and for 15 seconds after — cold solidifies grease so it grinds off the walls
• Cut large scraps into 1 – 2" pieces before feeding
• Run the disposal daily even with just water — prevents rust and keeps the flywheel free
• Deodorize monthly — grind ice cubes with rock salt, then citrus peels (lemon, orange, lime)
• Check under the sink monthly — catch small leaks before they rot the cabinet

Don't

• No grease, oil, or fat — liquid going in, hardening in the drain line, causing clogs 10 feet downstream
• No fibrous foods — celery, corn husks, onion skins, artichoke leaves wrap around the flywheel
• No starchy foods in bulk — pasta, rice, and potato peels expand with water and form a paste
• No bones (except very small), fruit pits, or seafood shells — dulls grinders and jams flywheel
• No coffee grounds in quantity — they build sludge in the trap
• No egg shells in quantity — membranes wrap around the flywheel
• No hot water while grinding — melts grease, which then re-solidifies downstream
• Never reach inside with power on — if power is OFF, still use tongs or pliers, never fingers

Hard Water in Chicago

Chicago tap water ranges from 8 – 13 grains per gallon (moderately hard to hard). Hard water accelerates disposal corrosion. If you're in a hard-water neighborhood (much of the North Side, most suburbs), consider water softener installation — it extends disposal life significantly.