Plomberie 5 Etoiles Montreal

Garbage Disposal & Garburator Installation in Montreal

Garbage disposal installation and replacement with code-compliant hookups in Montreal and surrounding areas.

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Garbage Disposal Replacement

A properly installed garburator keeps your kitchen cleaner, reduces sink odours, and stops food scraps from going directly into your drain trap where they accumulate and cause clogs. Plomberie 5 Étoiles installs and replaces garbage disposals and garburators across Montreal, Laval, the South Shore, and the North Shore — with code-compliant plumbing connections and same-day service in most cases.


garbage disposal installation

Garbage Disposal Installation — What's Actually Involved

Whether you're installing a garburator for the first time or replacing a failed unit, the job involves more than plugging something in under the sink. An improperly installed disposal can cause leaks, excessive vibration, poor drainage, or damage to the existing drain pipes. Here's what a professional installation covers:

Assessment of your existing drain. We check that your kitchen drain is compatible with a disposal — specifically the P-trap diameter, the dishwasher drain connection if applicable, and the overall condition of the kitchen drain. In older Montreal homes with 40–50-year-old ABS or cast iron drain pipes, we confirm the plumbing can handle continuous disposal use before installing the unit.

Code-compliant plumbing connection. The disposal connects to the sink drain via a specific mounting assembly. If you have a dishwasher, its drain line also connects to the disposal unit through a dedicated inlet — a detail that DIY installers often miss, which causes dishwasher water to back up into the tub.

Electrical connection. A garbage disposal requires a dedicated electrical outlet accessible under the sink, or a hardwired connection depending on the model. If your kitchen doesn't have one, we can advise on coordinating with an electrician.

Start-up and testing. We run the unit, check all connections for leaks, confirm that drainage is clean and complete, and verify that anti-vibration mounts are properly engaged.

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Customer Reviews

Vertigo Stardust

Vertigo Stardust

6 years ago

Well done guys, they've earned their 5 stars My kitchen sink wasn't flushing despite the underneath pipes being clean. My basement toilet was out of order. I called them at 9:30am, the man clearly explained the fees wit…

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Lison Côté

Lison Côté

5 months ago

Fast, friendly, and professional service. Wow. Thank you.

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Laurence Corbeil

Laurence Corbeil

7 months ago

The service was good and fast, with relevant advice.

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Yann Laliberte

Yann Laliberte

5 months ago

Courteous, fast, and professional. Thank you.

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Chantal Labelle

Chantal Labelle

1 year ago

Very good service, fast, efficient, and courteous. I highly recommend them. Thank you :)

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Claude Massy

Claude Massy

2 years ago

Great camera inspection, even earlier than scheduled. Very friendly and gave clear explanations of the work. I truly recommend them. My plumber was Zoiubir. Thanks to Alex.

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Garburator Replacement

If your current unit has failed, several signs point to replacement over repair:

  • The unit is more than 10–12 years old — average lifespan is 8–15 years depending on quality and usage
  • The motor hums but doesn't grind — grinding components are worn, which is generally uneconomical to repair
  • Chronic leaks at the lower seal — indicates advanced internal corrosion of the unit body
  • Frequent jamming despite normal use — motor is losing power with age
  • Excessive vibration and noise — mounting hardware or internal components are worn
  • Persistent odours despite cleaning — internal organic accumulation that can't be cleared

When replacing a unit, we remove the old disposal, clean the drain connections if needed, install the new model, and test everything before leaving. Most replacements on existing installations take 1–2 hours.

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What Not to Put in a Garbage Disposal

A properly used garburator lasts significantly longer. Here's what to keep out:

Drain-clogging items:

  • Pasta, rice, and bread — expand with water and form a paste in the drain trap
  • Potato peels and starchy vegetables — same issue
  • Oil, cooking grease, or animal fat — solidifies in pipes and causes gradual kitchen drain buildup
  • Coffee grounds — accumulate in the drain trap as a dense sediment

Mechanism-damaging items:

  • Large bones (ribs, whole chicken bones) — small soft bones are generally tolerated depending on the unit's power rating
  • Oyster, clam, or snail shells — too hard for the grinding components
  • Fruit pits — cherries, peaches, avocados
  • Cutlery, bottle caps, or hard foreign objects — can jam or permanently damage the grind ring

Pipe-damaging items:

  • Bleach or chemical drain cleaners — corrosive to gaskets and ABS pipes
  • Concentrated cleaning products — unnecessary in a disposal and harmful to plumbing

Practical tip: Always run cold water during operation and for 15–20 seconds after the unit stops — this flushes residue through the drain. Cold water solidifies any remaining fat particles, helping them pass through the pipe without coating the walls.


Garbage Disposal Maintenance

Minimal maintenance significantly extends service life and eliminates odours.

For odours: Drop a handful of ice cubes and coarse salt into the disposal and run it — the ice cleans the grinding components and the salt absorbs organic residue. You can also run citrus peels (lemon, orange) to neutralize odours. Do this once a week.

For buildup: Once a month, pour a small amount of baking soda followed by a splash of white vinegar into the unit, wait 5 minutes, then flush with hot water. This reduces organic accumulation inside the disposal body.

Never use: Bleach or chemical cleaners — they damage internal gaskets and should be kept out of the disposal entirely.


Garburators in Older Montreal Homes

An important note for homeowners in homes built before the 1980s: if your kitchen still has original ABS or cast iron drain pipes, adding a garburator is worth evaluating beforehand. Disposals increase the flow of fine organic solids through the kitchen drain slightly — not enough to cause problems in pipes that are in good condition, but in a kitchen drain that's already partially coated with grease buildup or in a corroded cast iron trap, installing a garburator can accelerate clogging.

During the installation visit, we assess the condition of your existing kitchen drain. If we find a pre-existing issue, we'll tell you before proceeding. In some cases, a kitchen drain cleaning before installation is the right first step.

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Why Choose Plomberie 5 Étoiles for Garburator Installation

Clean, code-compliant installation. No leaks, no vibration, correct dishwasher connection — we do this regularly and know exactly what makes a disposal installation fail.

15 years in Montreal, Laval, and the region. We work in every type of Montreal kitchen — cast iron trap in a Plateau triplex, ABS drain in a Laval bungalow, renovated kitchen in a Griffintown condo.

CAA-Québec recommended for 10+ years. Verified quality, every year.

4.8 stars on Google, 150+ verified reviews.

RBQ #5663-4538-01 · CMMTQ Member · Fully insured.


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Related Services


Plumber recommanded CAA

CAA recommended

We have been recommended by CAA-Québec for over 10 years

CMMTQ

Plomberie 5 Étoiles is a member of the Corporation des maîtres mécaniciens en tuyauterie du Québec

RBQ

We are licensed by the Régie du bâtiment du Québec

Home Depot Pro

Home Depot Pro partner

AECQ

Member of the Association des entrepreneurs en construction du Québec (AECQ)

Three Best Rated

Among the top three plumbers according to Three Best Rated

FAQ

Garbage disposal installation involves both plumbing and electrical connections that must be done correctly by a trained professional to ensure safety and proper operation. Improper installation can result in leaks, drain blockages, or electrical hazards.

You should avoid putting pasta or rice, potato peels, oil or animal fat, coffee grounds, large bones, bleach or drain cleaners, and grease down a garbage disposal. These materials can jam the blades, clog the drain, or damage the unit over time.

Key signs include a disposal that no longer activates, unusual sounds such as grinding or clanking, persistent odors despite cleaning, leaks under the sink, or a unit that constantly needs to be reset. In these cases, replacement is often more cost-effective than repair.

A professional garbage disposal installation typically takes one to two hours. Our plumber handles everything from disconnecting the old unit to commissioning the new one, ensuring all plumbing and electrical connections are properly done.

Yes. Plomberie 5 Étoiles can replace your existing garbage disposal with a new, high-quality model. Call us at 514-447-3700 to discuss your options and get a quote.

Yes. We offer garbage disposal installation and replacement services in Montreal, Laval, Longueuil, Brossard, Terrebonne, Blainville and throughout the greater Montreal area.