How Often Should Restaurants Clean Grease Traps in Calgary?
Updated: Oct 13
Picture a busy Friday night in your restaurant. Orders are flying out of the kitchen, staff are moving quickly, and everything is running smoothly until a drain starts backing up. Suddenly, what should have been a productive shift turns into a plumbing emergency. In many cases, problems like these can be traced back to a grease trap that wasn't cleaned often enough.
If you're wondering how often a restaurant grease trap should be cleaned, the short answer is at least once a month for most restaurants in Calgary. However, every kitchen is different, and factors such as customer volume, menu items, and daily grease production can all affect how frequently service is needed. Staying proactive with grease trap cleaning helps prevent foul odours, drain backups, unexpected downtime, and costly repairs.
Many restaurant owners don't think about grease traps until something goes wrong. By then, what could have been a routine maintenance visit may require emergency service. In this guide, The Drain Doctor will cover recommended cleaning schedules, warning signs to watch for, and the key factors that determine how often your grease trap should be cleaned.
How Often Should Restaurants Clean Grease Traps?
For most restaurants, monthly grease trap cleaning should be considered the minimum standard. Grease traps are designed to collect fats, oils, and grease (FOG) before they enter your plumbing system. Over time, these materials accumulate and reduce the trap's capacity.
A commonly followed industry guideline is known as the 25% rule. Once grease and solids occupy approximately 25% of the trap's capacity, cleaning should be scheduled. Waiting longer increases the risk of drainage issues and system failure.
Cleaning frequency often depends on factors such as:
the size of the grease trap
the amount of food prepared daily
the number of customers served
the types of food being cooked
the amount of grease and oil generated by kitchen operations
For many Calgary restaurants, monthly service is appropriate, while higher-volume establishments may require cleaning every two to four weeks.
Is Monthly Grease Trap Cleaning Enough?
For some businesses, yes. For others, no.
A small café that prepares limited food may find that monthly grease trap cleaning keeps the system functioning properly. However, busy restaurants often fill grease traps much faster than expected.
Businesses that may require more frequent cleaning include:
fast-food restaurants
steakhouses
fried food establishments
buffet restaurants
hotel kitchens
high-volume catering operations
If staff regularly dispose of cooking oils, grease, or food scraps through sinks and drains, grease can accumulate quickly. In these environments, more frequent commercial grease trap maintenance can help avoid unexpected problems.
Do Busy Restaurants Need More Frequent Cleaning?
Absolutely. A restaurant serving hundreds of meals each day produces significantly more grease waste than a small café. The higher the kitchen volume, the faster grease, oils, and food particles accumulate inside the trap.
Some signs that your cleaning schedule may not be frequent enough include:
increased drain cleaning calls
slow-draining sinks
recurring odours
frequent grease buildup during inspections
If these issues are becoming common, it may be time to increase the frequency of your restaurant grease trap cleaning program.
What Happens If a Grease Trap Isn't Cleaned?
Neglecting grease trap maintenance can create several operational and plumbing problems. When grease builds up beyond the trap's capacity, it can begin flowing into the drain system, where it hardens and creates blockages. These clogs can affect your kitchen's ability to operate efficiently and may eventually lead to costly plumbing repairs.
Potential consequences include:
drain backups
overflowing grease traps
unpleasant kitchen odours
slow drainage throughout the facility
emergency plumbing service calls
business interruptions and downtime
premature wear on plumbing systems
For restaurant owners, the cost of routine maintenance is typically far lower than the cost of emergency repairs and lost business.
How Do I Know My Grease Trap Is Full?
Grease traps rarely stop working without warning. In most cases, they provide several early signs that maintenance is overdue.
Signs your grease trap may be full include:
persistent foul odours near sinks or drains
water draining slowly from kitchen sinks
grease visible inside the trap
gurgling sounds from drains
frequent drain backups
standing water around floor drains
If any of these issues are occurring, it's a good idea to arrange professional grease trap cleaning before the problem worsens.
What Are the Signs of a Clogged Grease Trap?
A clogged grease trap can impact the entire plumbing system within a commercial kitchen.
Common warning signs include:
Slow Drainage
One of the first signs is sinks taking longer than normal to drain. As grease accumulates, water flow becomes restricted.
Strong Grease Odours
Decomposing grease and food waste can create unpleasant smells throughout the kitchen and dining areas.
Frequent Drain Backups
Water may begin backing up into sinks, floor drains, or other fixtures. This is often a sign that grease buildup has become severe.
Overflowing Grease Trap
An overflowing trap is a clear indication that immediate cleaning is required to prevent further plumbing issues.
Increased Plumbing Service Calls
If you're repeatedly dealing with drain problems, your grease trap maintenance schedule may need adjustment.
How Commercial Kitchen Grease Trap Cleaning Helps Prevent Problems
Routine grease trap cleaning does more than remove accumulated waste. It helps support the overall health of your plumbing system and keeps your kitchen operating efficiently.
Benefits of regular cleaning include:
helping prevent grease trap backups
reducing unpleasant odours
improving drainage performance
minimizing emergency plumbing repairs
supporting restaurant drain maintenance efforts
reducing downtime caused by plumbing issues
For restaurant operators, preventive maintenance is one of the most effective ways to avoid disruptions during busy service hours.
What to Remember
Most Calgary restaurants should schedule grease trap cleaning at least once per month, while higher-volume kitchens may require more frequent service. Regular maintenance helps prevent backups, odours, downtime, and expensive repairs, keeping your business running smoothly year-round.
Keep Your Restaurant in Calgary Running Smoothly
Don't wait for a backup or overflowing grease trap to disrupt your business. The Drain Doctor™ provides reliable grease trap cleaning and commercial drain services for restaurants and food service businesses throughout Calgary. With proactive maintenance solutions, we can help prevent odours, blockages, emergency repairs, and costly downtime. Contact The Drain Doctor™ today to schedule service and protect your business from avoidable plumbing problems.