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Best Garbage Disposal Service Companies in Wisconsin Ranked
A functional garbage disposal is a key component of a modern Wisconsin kitchen, making cleanup easier and helping to manage food waste. When your disposal hums, leaks, or stops working entirely, it disrupts your daily routine. This guide covers what you need to know about repair and installation services in Wisconsin, from understanding costs and types of units to navigating local plumbing and electrical requirements. You can use this information to identify qualified local professionals who can efficiently diagnose issues, perform safe installations, and ensure your system meets state and local codes.

Dave Jones - Plumbing, HVAC, Fire Protection, Electrical
2225 Kilgust Rd, Monona, WI 53713
Dave Jones - Plumbing, HVAC, Fire Protection, Electrical offers a wide range of services in Madison, WI, including water heater repair and installation, water softener installation, sump pump repair, drain cleaning, sewer line repair, leak detection, gas line installation, toilet repair, and garbage disposal repair. The company has been serving the Madison and Dane County area since 1977, providing plumbing, HVAC, fire protection, and electrical services for both residential and commercial clients. Their team is equipped to handle various installations and repairs, with a focus on quality craftsmanship and customer satisfaction.

Southport Home Services
3304 Dairy Dr, Madison, WI 53718
Southport Home Services offers plumbing and HVAC solutions in Madison, WI, and the greater Wisconsin areas including Wausau and Caledonia. They provide a wide range of services such as sewer camera inspections, drain cleaning, sewer line repairs, leak detection, gas line installation, and garbage disposal repairs. Their team is experienced in maintaining indoor air quality through humidity control and air filtration, alongside traditional heating and cooling system services. Established in 2005, Southport Home Services combines licensed plumbing expertise with NATE-certified HVAC technicians to deliver comprehensive home comfort solutions.

All Comfort Services
5245 Voges Rd, Madison, WI 53718
All Comfort Services is a Madison, WI-based company providing comprehensive home services including plumbing, HVAC, and electrical work. With over 50 years of experience serving the Madison area, they offer water heater repair and installation, tankless water heater services, water softener installation, drain cleaning, and repairs for toilets and garbage disposals. Their skilled technicians handle both residential and commercial needs, ensuring reliable plumbing solutions. The company is employee-owned and emphasizes well-trained staff and customer satisfaction, backing their work with a 100% satisfaction guarantee. They also offer 24/7 emergency HVAC and plumbing services.

Southport Home Services
1343 S 27th St, Caledonia, WI 53108
Southport Home Services provides plumbing and HVAC services in Milwaukee, WI, and the greater Wisconsin areas including Wausau, Madison, and Caledonia. Their licensed plumbers handle a variety of tasks such as drain cleaning, sewer line repair, leak detection, gas line installation, and garbage disposal repair. The company also offers HVAC services including heating and cooling system maintenance, installation, and indoor air quality solutions like humidity control and HEPA filtration. Established in 2005, Southport Home Services combines plumbing and HVAC expertise to improve home comfort and efficiency.

Knight Plumbing, Inc.
4270 S Howell Ave, Milwaukee, WI 53207
Knight Plumbing, Inc. is a family-owned plumbing company serving Milwaukee, WI, and nearby communities. Since 2001, they have provided a wide range of plumbing services including water heater repair and installation, drain cleaning, sewer line repair, hydro jetting, sump pump repair, leak detection, and gas line installation. Their team uses modern technology such as video camera inspections to diagnose issues accurately and efficiently. With over 20 years of experience, Knight Plumbing emphasizes quality workmanship and respectful service. They offer same-day appointments and maintain a well-stocked inventory to minimize wait times for repairs and replacements.
Understanding Garbage Disposal Types and Key Components
Before calling a professional, it helps to understand the basic types of disposals and how they work. The two main designs are continuous-feed and batch-feed models. Continuous-feed disposals are the most common and generally more affordable; they are activated by a wall switch and allow you to scrape waste into the unit while it runs 1 2. Batch-feed models are considered safer, especially for households with children, as they only operate when a special stopper is locked into place, but they typically come at a higher cost 1 3.
The power of a disposal is measured in horsepower (HP). For a typical household of four, a 1/2 HP unit is often sufficient. For larger families or those who generate more food waste, a 3/4 HP model provides more grinding power and durability 1 2. The disposal connects to your kitchen's plumbing at the sink flange-the metal ring that seals the unit to the sink basin-and then to the drainpipe and P-trap 4 5. Many units also include a connection port for your dishwasher drain hose 6 7.
Common Problems and Repair Considerations
Disposals are sturdy appliances, but they can develop issues. The most common problems homeowners in Wisconsin face include:
- Jams: Caused by improper items like fruit pits, bones, or fibrous vegetables. Many units have a manual reset button (a red button on the bottom) that can be pressed after the unit is unplugged to clear a simple overload 4 8.
- Leaks: Water can seep from the sink flange seal, the drainpipe connections, or the body of the unit itself. Minor leaks at connections are often repairable by tightening fittings or replacing a gasket, but a crack in the disposal's housing usually means replacement is necessary 4 9 5.
- Humming but Not Grinding: This usually indicates a jam that the reset button cannot fix, requiring manual clearing with a special wrench or professional assistance.
- Complete Failure: If the unit doesn't respond at all, the issue could be electrical, such as a tripped circuit breaker, a faulty wall switch, or a burned-out motor 6 10.
Repair costs in Wisconsin typically range from $100 to $450, depending on the complexity of the issue. A simple jam clearance is on the lower end, while fixing a significant leak or addressing internal motor and wiring problems will cost more 4 11. A good rule of thumb is to consider replacement if the repair cost approaches half the price of a new unit and installation, or if your disposal is over 8-15 years old and failing frequently 1 9.
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The Installation Process: Plumbing and Electrical Essentials
Installing a new garbage disposal is more complex than simply swapping out an old unit. It involves both plumbing and electrical work, which is why hiring a professional is strongly recommended to ensure safety and compliance with Wisconsin building codes.
The plumbing work involves securely mounting the new unit to the sink flange, connecting it to the drain assembly and P-trap, and often attaching the dishwasher drain line. A professional will ensure all connections are watertight to prevent future leaks under your sink 6 5.
The electrical requirements are critical for safety. A garbage disposal must be plugged into a grounded electrical outlet located in the cabinet under the sink. Many local codes, including those in Milwaukee and other Wisconsin municipalities, require the disposal to be on a dedicated circuit to prevent overloading 6 10. In older Wisconsin homes, an electrician may need to install a new grounded outlet or even run a new circuit from the electrical panel, which adds to the project cost but is essential for safe operation 10 12.
Cost Breakdown for Wisconsin Homeowners
The total cost for garbage disposal services in Wisconsin varies based on the unit's power, brand, and the scope of supporting work needed. Here's a general breakdown:
- New Disposal Unit: A mid-range, reliable 1/2 HP model typically costs between $100 and $300+ at retail 13 3.
- Professional Installation Labor: A plumber's labor to remove the old unit and install the new one generally ranges from $80 to $200+ for a standard swap, with hourly rates in Wisconsin often between $50 and $125 4 14 11.
- Electrical Work: If a new grounded outlet or dedicated circuit is needed, expect to pay an additional $120 to $165+ for an electrician's services 12 15.
- Total Project Cost: Therefore, a straightforward replacement with no extra electrical work can cost $200 to $550+. A full installation in a home needing new wiring or significant plumbing adjustments can reach $950 or more 4 13 2.
Proper Use and Maintenance Tips
To extend the life of your garbage disposal and avoid unnecessary repairs, follow these best practices:
- Always run cold water before, during, and for about 30 seconds after grinding. Cold water solidifies grease, allowing it to be chopped up and flushed away, while hot water can melt grease and cause clogs further down the drain 1 8.
- Avoid putting certain items down the disposal. This includes grease and cooking oils, bones, fruit pits, coffee grounds, eggshells, and fibrous vegetables like celery, onion skins, and potato peels 4 6.
- Clean it regularly by grinding a few ice cubes to help scour the grinding chamber, or using a mild soap and cold water flush.
- Know when to call a professional. If you hear unusual noises, experience persistent leaks, or the unit repeatedly trips the circuit breaker, it's time to contact a local expert for diagnosis 8.
Choosing a qualified professional for repair or installation ensures the job is done correctly, safely, and in accordance with local codes, protecting your home and investment.
Frequently asked questions
Sources
Footnotes
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Garbage Disposal Installation & Repair Madison WI - https://plumbingprosllc.com/garbage-disposal-installation-repairs.html ↩ ↩2 ↩3 ↩4 ↩5
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Garbage Disposal Replacement Cost (2026) | ConsumerAffairs® - https://www.consumeraffairs.com/homeowners/garbage-disposal-replacement-cost.html ↩ ↩2 ↩3
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How Much Does It Cost to Install or Replace a Garbage Disposal? - https://www.homeserve.com/en-us/blog/cost-guide/install-garbage-disposal ↩ ↩2
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Garbage Disposal Repair Cost: What to Expect In 2026 - Modernize - https://modernize.com/plumbing/garbage-disposal/repair-cost ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7
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Understanding the Process of Garbage Disposal Installation - https://www.spartanplumbinginc.com/understanding-the-process-of-garbage-disposal-installation/ ↩ ↩2 ↩3
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Garbage Disposal Installation in Milwaukee, WI - https://www.knightplumbinginc.com/plumbing-services/garbage-disposal-installation/ ↩ ↩2 ↩3 ↩4 ↩5
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Replacing a Garbage Disposal? Read This First - https://www.bobvila.com/articles/replacing-a-garbage-disposal/ ↩
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Garbage Disposal Installation & Repair in Madison, WI - https://avidplumbing.com/plumbing/kitchen/garbage-disposal ↩ ↩2 ↩3
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Garbage Disposal Services In Southeastern Wisconsin By ... - https://thielmannheating.com/plumbing/garbage-disposals ↩ ↩2
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What to Consider Before Installing a New Garbage Disposal - https://www.mnsplumbing.com/plumbing-blog/what-to-consider-before-installing-a-new-garbage-disposal ↩ ↩2 ↩3
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2026 Garbage Disposal Replacement & Repair Costs - HomeGuide - https://homeguide.com/costs/garbage-disposal-repair-cost ↩ ↩2
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Cost to Replace Garbage Disposal: What to Expect | SHW Blog - https://www.selecthomewarranty.com/blog/cost-to-replace-garbage-disposal/ ↩ ↩2
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How Much Does Garbage Disposal Replacement Cost? - Modernize - https://modernize.com/plumbing/garbage-disposal/replacement-cost ↩ ↩2
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Garbage Disposal Repair Cost & Coverage - Liberty Home Guard - https://www.libertyhomeguard.com/blog/home-maintenance/garbage-disposal-repair-cost-coverage/ ↩
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Garbage Disposal Repair vs. Replacement: What's Cheaper? - https://qualityplumbing.com/garbage-disposal-repair/ ↩