By Onkar Ghuman, Red Seal Certified Plumber & Owner — Real Deal Plumbing & Drainage | Langley, BC
Published: April 2026
Most property managers I talk to have plumbing on one maintenance schedule and cleaning on another. Different contractors, different invoices, different people. That separation is usually where the problems start.
I’ve been doing commercial plumbing across Greater Vancouver for over a decade. The pattern is consistent: buildings that coordinate plumbing maintenance and professional cleaning spend less on emergency repairs and pass inspections with fewer surprises. The two programs aren’t separate. When one falls behind, it creates work for the other.
How neglected plumbing creates hygiene failures in commercial buildings
Most commercial hygiene problems don’t start with a dirty floor. They start in the pipes.
Slow drains and standing water
A slow-clearing sink or floor drain in a commercial restroom isn’t just a nuisance. Standing water creates conditions for bacterial growth, mould, and persistent odours. In food service spaces, even a partially blocked drain can attract pests and trigger provincial health violations.
Commercial drainage systems accumulate grease, soap residue, and sediment much faster than residential ones because the volume is just higher. A busy restaurant kitchen can push 50 to 100 litres of greasy wastewater through its lines every day. Without scheduled commercial drain cleaning, those deposits harden inside pipe walls over weeks until a full blockage forces an emergency call.
I dealt with this exact scenario last year at a multi-tenant retail building in Surrey. A food court tenant had been reporting slow drains for months, but nobody scheduled maintenance. By the time we were called in, the main drain line had a grease blockage severe enough to cause sewage backup into two adjacent units. The emergency repair, plus tenant disruption and cleanup, ran roughly four times what a quarterly hydro jetting program would have cost for the year.
Sewer gas and dry trap problems
Every drain in a commercial building has a P-trap, a curved pipe section that holds water to block sewer gases from entering occupied spaces. Floor drains in storage rooms, mechanical rooms, and seldom-used restrooms dry out because nobody runs water through them.
When a trap dries out, hydrogen sulphide seeps into the building. It smells bad at low concentrations. At higher ones, it causes headaches, nausea, and respiratory irritation. Health Canada classifies it as a health hazard above 10 parts per million.
The fix takes about five seconds: pour water into unused drains monthly, or install trap primers on low-traffic floor drains. But you only catch it early when someone is physically in the space. A cleaning crew on a regular route will notice a sewer gas smell long before a property manager doing quarterly walkthroughs ever does.
Backflow risks and cross-contamination
Backflow, where contaminated water reverses direction and enters the potable water supply, is one of the more serious plumbing hazards in commercial buildings. The National Plumbing Code of Canada requires backflow prevention devices on commercial properties, and BC municipalities enforce annual testing and certification.
A failed preventer can allow non-potable water, cleaning chemicals, or biological contaminants into the drinking water system. Failing a backflow test isn’t just a repair bill. It’s a compliance violation that goes on record with the municipality.
At Real Deal Plumbing, backflow preventer testing and documentation is part of our standard commercial plumbing maintenance program. We file the paperwork directly so property managers don’t have to chase certifications at inspection time.
Why janitorial services and commercial plumbing maintenance work best together
When plumbing maintenance and cleaning run as independent programs, things fall through the gap between them. Running both in coordination catches problems earlier and generally costs less.
Commercial restroom maintenance is a two-sided problem
Commercial restrooms in offices, retail buildings, and restaurants can see hundreds of uses per day. Keeping them functional and sanitary takes both good cleaning and working plumbing. Daily sanitization, restocking, and floor care keep the space presentable. But if toilets are running, faucets are dripping, or drains are backing up, cleaning can’t fix it.
A professional janitorial team is often the first to notice developing plumbing problems because they’re in those spaces every day. A running toilet, a drain backing up under load, a faucet that won’t shut off: a cleaning crew encounters these things long before they turn into emergency calls.
The setup that works best is one where the janitorial provider treats plumbing observations as part of their regular reporting. Crystal Cleaning, a Canadian janitorial services company based in Montreal serving offices, retail, warehouses, and medical facilities, builds documented quality assurance into every visit, including photo reports with each invoice. When something like a slow drain or a running toilet shows up in a photo report, a property manager can schedule a plumbing call before it becomes an emergency.
Grease and drain management in commercial kitchens
If your property has a food service tenant, the relationship between cleaning and plumbing is direct and expensive when ignored. Grease accumulation is the top cause of drain blockages in commercial kitchens.
Cleaning teams handle grease trap emptying, surface degreasing, and kitchen hygiene that keeps residue out of the drainage system. On the plumbing side, commercial drain lines need scheduled hydro jetting, a high-pressure method that strips hardened grease from pipe walls and restores full flow.
A spotless kitchen that skips drain maintenance still gets blockages. A kitchen that hydro jets quarterly but lets grease pour down unchecked burns through its plumbing budget. Based on the restaurant and food court tenants we maintain across the Fraser Valley, buildings that coordinate both typically see about half the emergency drain calls compared to buildings that run cleaning and plumbing separately.
Post-plumbing cleanup after major work
Pipe replacements, sewer backup remediation, and water heater installations leave behind dust, debris, and sometimes standing water. We clean up after every job. For larger commercial projects in occupied retail spaces, medical offices, or restaurants, a professional post-construction cleaning crew gets the space back to pre-work condition for tenants and customers.
Commercial plumbing maintenance schedule for property managers
This schedule reflects what we run for commercial clients across Langley, Surrey, and the Fraser Valley. Adjust based on building type, tenant mix, and occupancy.
| Frequency | Plumbing tasks | Cleaning & hygiene tasks |
|---|---|---|
| Monthly | Inspect visible fixtures for leaks, drips, and slow drainage. Check P-traps in low-traffic floor drains — pour water if dry. Test emergency shutoff valves. | Deep clean restrooms and break rooms. Degrease kitchen surfaces and check grease trap levels. Report any plumbing irregularities to property management. |
| Quarterly | Professional drain cleaning / hydro jetting on high-use lines (kitchens, multi-fixture restrooms). Camera inspection of any problem areas flagged during monthly checks. | Floor stripping and waxing. High dusting and vent cleaning. Detailed sanitization of hard-to-reach restroom areas. Carpet extraction in high-traffic zones. |
| Annually | Full camera diagnostic inspection of main sewer and drainage lines. Backflow preventer testing and certification. Water heater inspection and flushing. Review pipe condition for corrosion or root intrusion. | Full exterior window cleaning and power washing. Deep carpet cleaning building-wide. Comprehensive post-winter inspection of building envelope. |
For restaurant and food service tenants, increase drain cleaning to monthly during peak seasons. Buildings with mature trees near sewer lines should get camera inspections every six months to catch root intrusion before it causes a blockage.
Code compliance: Where commercial plumbing and building hygiene intersect
The BC Plumbing Code 2024, based on the National Plumbing Code of Canada, sets technical requirements for plumbing system design, installation, and maintenance in commercial buildings. Backflow prevention, drainage ventilation, fixture spacing, and hot water temperature requirements all exist to protect occupant health. When they aren’t maintained, you have a plumbing problem and a hygiene problem at the same time.
Property managers who fall behind risk more than a repair bill. Failed inspections, municipal compliance orders, tenant complaints, and emergency costs stack up fast. Staying current on plumbing maintenance is consistently cheaper than catching up after something fails.
Provincial resources include Technical Safety BC for gas and plumbing equipment oversight and the BC Housing Homeowner Protection Office for contractor licensing verification. Confirm that any contractor you hire holds a valid licence and carries appropriate liability insurance before authorizing work.
Choosing the right commercial plumbing and cleaning partners
For plumbing, you want a licensed Red Seal contractor with real commercial experience and camera inspection capability. Camera work shows you what’s actually in the pipe rather than requiring guesswork. Confirm 24/7 emergency availability, because a pipe doesn’t care what time it is. Before authorizing work, ask for proof of commercial general liability insurance (most property management companies require a minimum of $2 million), WCB coverage, and current licensing. Verify through Technical Safety BC.
For janitorial services, flexible scheduling, photo-documented quality assurance, and experience with your facility type are what separate a good partner from a generic one. The companies worth working with flag maintenance issues when they find them rather than waiting to be asked.
When your plumber and your cleaning team share information, even just reporting to the same property manager through a shared maintenance log, problems get caught before they become emergencies.
Frequently asked questions about commercial plumbing maintenance
How often should commercial drains be professionally cleaned?
It depends on the building. Restaurants and food service operations typically need professional drain cleaning every one to three months due to grease accumulation. Office and retail buildings usually need it once a year. Multi-unit residential and strata buildings usually fall somewhere in between, around every 12 to 18 months. Preventative cleaning is almost always cheaper than a single emergency blockage call. Call us at (604) 671-7039 to set up a maintenance schedule based on your building type and tenant mix.
What causes sewer gas smell in a commercial building?
Usually a dry P-trap. When drains in low-traffic areas go unused for weeks, the water evaporates and gases get in. Pour water into unused drains monthly or install automatic trap primers. If the smell persists despite wet traps, you may have a cracked vent pipe or damaged sewer line. Call Real Deal Plumbing at (604) 671-7039 for a camera-guided diagnosis.
Is backflow preventer testing required in British Columbia?
Yes. BC municipalities require annual backflow preventer testing on commercial properties. Results must be filed with the local water authority by a certified tester. Failing to keep current certification can result in compliance orders and fines. At Real Deal Plumbing, we handle both the testing and the filing.
What is hydro jetting and when is it needed?
Hydro jetting uses high-pressure water to clean the interior walls of drain pipes, removing hardened grease, scale, root intrusion, and sediment buildup. Unlike augering, which only punches through a blockage, hydro jetting restores the pipe to near-original capacity. It’s the most effective option for commercial kitchens, food courts, and any building with recurring slow drain problems. We offer scheduled hydro jetting programs — call (604) 671-7039 for pricing based on your pipe length and building layout.
How can I tell if my commercial property needs a plumbing inspection?
Warning signs: recurring drain backups, unexplained odours, wet spots near foundation walls, inconsistent water pressure, or higher water bills with no clear cause. If your building is more than 20 years old and has never had a camera inspection of its main sewer and drainage lines, it’s worth scheduling one. We provide inspections with full video footage and a written report — call (604) 671-7039 to book.
About the author
Onkar Ghuman is the owner and lead plumber at Real Deal Plumbing & Drainage, a family-owned company based in Langley, BC. He’s a Red Seal certified plumber with over a decade of trade experience across Greater Vancouver, having worked commercial and residential plumbing throughout the Lower Mainland before founding Real Deal Plumbing in 2023. He specializes in commercial drainage diagnostics using camera inspection technology and provides 24/7 emergency plumbing service throughout Langley, Surrey, Abbotsford, Chilliwack, Mission, and Greater Vancouver.
Real Deal Plumbing is fully licensed and insured, carrying commercial general liability and WCB coverage. All commercial drainage work is backed by a lifetime guarantee.
Call (604) 671-7039 or email service@realdealplumbing.ca to set up a commercial plumbing maintenance program for your property.
22224 48 Ave, Langley, BC V3A 3N9 — Serving Langley, Surrey, Burnaby, Abbotsford, New Westminster, Chilliwack, Mission, White Rock, North Vancouver, Vancouver, and Aldergrove.
