Trusted Commercial Dishwasher Experts in Toronto, Mississauga & Scarborough

Fast, professional commercial dishwasher repair across the GTA, with same-day service when available and a $99 diagnostic fully credited toward your repair.

Professional Commercial Dishwasher Services

Fast diagnostics, honest repairs, and dependable workmanship on every commercial job.

Commercial Dishwasher Not Draining

Standing water in the tank, slow drain cycles, or overflow after wash completion.

Not Cleaning Properly

Greasy dishes, food residue, cloudy glassware, or weak spray pressure.

Leaking Commercial Dishwasher

Water under the unit, door seal leaks, hose failures, or internal tank leaks.

Not Drying or Sanitizing

Low water temperature, failed heaters, poor drying results, or sanitation errors.

Won’t Start or Stops Mid-Cycle

Electrical faults, control board issues, safety switch failures, or cycle interruptions.

Loud or Unusual Noises

Grinding, buzzing, rattling, or excessive motor or pump noise during operation.

Only $99 for Same-Day Diagnostic Service

Same-Day Commercial Dishwasher Repair in GTA

Trusted commercial dishwasher repair and installation for restaurants, hotels, cafés, catering kitchens, and institutional facilities across the Greater Toronto Area.

If your city is not listed, call us and we will confirm same-day service availability.

Commercial Dishwasher Brands We Repair

We repair and service all major commercial dishwasher brands across Toronto, the GTA, and surrounding areas.

Factory-trained technicians for major commercial brands.

Don’t see your brand listed? We likely still repair it, call to confirm.

How Our Commercial Dishwasher Repair Works

Fast, Simple, Stress-Free Dishwasher Repair

Book Your Appointment

Call or book online. Only $99 diagnostic fee, fully credited toward your dishwasher repair.

1

In-Home Diagnosis​

An experienced technician inspects your commercial dishwasher and identifies the root cause of the issue.

2

Upfront Pricing​

You receive clear, upfront pricing and approve it before any repair or installation begins.

3

Repair & Final Testing​

We complete the service and fully test the unit to ensure safe, reliable operation before we leave.

4

No surprises. No pressure. Just honest, professional dishwasher repair.

Commercial Dishwasher Leaking? We Can Help Today!

Emergency Commercial Dishwasher Repair Near You

Fast emergency service to stop leaks, prevent kitchen downtime, and keep your business running.

OUR TESTIMONIAL

What Our Clients Say

Why Choose Us

Why Choose Certified Mechanical for Commercial Dishwasher Repair & Installation

We repair and install commercial dishwashers the right way, the first time.

Over 20 years combined industry experience, businesses across the GTA have trusted us for safe, accurate commercial dishwasher repair and installation completed to certified standards.

FAQ

Frequently Asked Questions About Commercial Dishwashers

Why is my commercial dishwasher not draining properly?
This is usually caused by a blocked drain screen, clogged hose, failed drain pump, or food debris buildup. In commercial kitchens, heavy food loads can overwhelm filters quickly. Regular cleaning and timely service prevent backups and overflow issues.
Why is my commercial dishwasher leaking?
Leaks often come from worn door gaskets, loose or cracked hoses, damaged seals, or overfilling issues. High water pressure and constant use can accelerate wear. Addressing leaks early helps prevent floor damage and safety hazards.
Why aren’t dishes coming out clean or sanitized?
Poor cleaning is commonly caused by low water temperature, clogged spray arms, incorrect detergent levels, hard water buildup, or failing wash pumps. Commercial dishwashers must reach proper temperatures to meet sanitation standards.
Why won’t my commercial dishwasher start?
This may be due to electrical supply issues, faulty door safety switches, blown fuses, control board failures, or error codes locking the system. Commercial units include multiple safety interlocks that prevent operation if a fault is detected.
Why does my commercial dishwasher stop mid-cycle?
Mid-cycle shutdowns are often triggered by overheating, water fill errors, sensor faults, or electrical interruptions. In many cases, the machine is protecting itself from further damage and requires professional diagnosis.
Why isn’t the water heating properly?
Heating problems are typically caused by failed heating elements, malfunctioning thermostats, scale buildup, or insufficient incoming water temperature. Without proper heat, dishes may not sanitize correctly and health code compliance can be affected.
What do commercial dishwasher error codes mean?
Error codes indicate specific faults such as drain failures, temperature issues, water fill problems, or sensor errors. Each commercial brand uses unique codes. A certified technician can interpret the code and resolve the underlying issue quickly.
How often should a commercial dishwasher be serviced?
Most commercial dishwashers should be professionally serviced every 3–6 months, depending on usage volume. Regular maintenance improves reliability, extends equipment life, ensures sanitation compliance, and reduces unexpected downtime.

Should You Repair or Replace Your Commercial Dishwasher?

Repair Makes Sense When...

The Unit Is Still Within Its Service Life

Most commercial dishwashers are built for long-term use. If the unit has been reliable, repair is often the most cost-effective option.

Your Kitchen Setup Works Well

If the machine fits your workflow and capacity needs, repairing it avoids costly layout changes.

The Problem Is Isolated

Drain pumps, heaters, valves, sensors, or control components can usually be repaired at a fraction of replacement cost.

Replacement Might Be Better If...

The Unit Is Near End of Life

Frequent failures or aging components may justify replacement.

Multiple Major Failures Exist

Control boards, heaters, motors, and leaks at the same time often signal replacement.

You Need Better Efficiency or Capacity

Newer commercial dishwashers offer faster cycles, better sanitation, and lower water usage.

Not sure which option makes sense?

Our technicians provide honest recommendations based on safety, cost, and long-term value. Call 1-866-492-4959

Book Your Commercial Dishwasher Service Online!

Our team will contact you shortly to confirm your booking.