Commercial plumbing

Yes, and for most commercial properties it is the right choice. Overnight and early-morning attendance carries a premium, but the premium is almost always smaller than a day of lost trading. Particularly in food service and retail. Tell us your hours when you call and we will scope the work around them rather than around a standard working day.

Quarterly for a busy kitchen, annually at the outside for a light one. Grease coats the whole inside surface of the line, and cabling only bores a hole through the deposit. It will close again within weeks. Jetting scours the pipe wall back to bare surface. Combined with a correctly sized and regularly cleaned grease interceptor, it is what keeps a kitchen open.

Testable backflow prevention assemblies must be tested annually by a certified tester, with the results filed with the water authority. It is a legal obligation, not a recommendation, and a lapsed certification can bring enforcement action or in some localities disconnection. It is also cheap and quick, usually $100 to $250 per device, so it belongs on a calendar rather than in a drawer.

Usually one of three things: it is undersized for the kitchen’s actual output, it is not being cleaned often enough, or the cleaning is not being documented so nobody notices the interval has slipped. Undersized interceptors cannot be cleaned into compliance. The fixture load and flow have to be assessed against the unit’s capacity. Keep the cleaning manifests; the health inspector will ask.

The lease governs, and it varies. Commonly the demarcation sits where service enters the demised premises, with the landlord responsible for building systems and risers and the tenant for everything inside. Settle it before an emergency: know which valves are yours, who holds the mechanical room key out of hours, and who is authorised to approve emergency work in the middle of the night.

Because the largest single driver of commercial repair cost is time spent working out how the building is plumbed while the water is off. A survey labels and exercises every isolation valve and produces a riser diagram, so a future failure is isolated to one unit or one floor instead of shutting the building. Most properties have never had it done, and it is the cheapest downtime insurance available.

It is a false economy in almost every case. Commercial fixtures are engineered for a duty cycle measured in hundreds of uses per day, and residential-grade equipment in that service typically fails within a year or two, at which point you pay for the replacement, the labour and the disruption. Commercial water heaters in particular are sized for recovery rate rather than tank volume, which residential units cannot match.

Immediately urgent, and it is a trading question rather than a comfort one. Food premises have hot water requirements for hand washing and sanitation, and an inspection during an outage produces a finding. Call it in as an emergency, and ask about a temporary measure while a replacement is sourced; a portable unit or a rented heater can keep you open.

Yes. The characteristic issues are shared risers, isolation at unit level, responsibility boundaries between the association and the owners, and phased repipe programmes that have to run while people live in the building. Documentation matters more than usual, because a board needs a record it can present to owners and to an insurer.

At minimum: scheduled kitchen line jetting where applicable, grease interceptor cleaning with manifests, annual backflow testing and filing, annual water heater service, quarterly floor drain and trap primer checks, annual valve exercise with a diagram update, and a sewer camera survey every two or three years. Ask for it in writing with dates, and for the reports to be filed somewhere you can retrieve them.