The water is isolated. The fitting in the bin looks right, but nobody can confirm that it suits the installed pipe system. A working plumber van inventory keeps the call moving without filling the vehicle with duplicate or unidentified parts.
Treat each van as a stock location. Define the calls it must support. Separate permanent stock from named-job materials. Give every stock line a counting unit, reorder point, target level and job reference.
Define the service calls before buying stock
Start with completed service calls. Not a supplier catalogue.
List the work assigned to each van. A technician handling occupied-home repairs needs different stock from a crew completing planned replacements. Do not make every vehicle carry every part the business might use.
Build a coverage matrix from your job records:
| Assigned van | Repair type | Job-stopping part | Compatibility detail | Usual bin or storage point | Expected completion |
|---|---|---|---|---|---|
| [Vehicle reference] | [Type of repair] | [Part that can stop the repair] | [System, material, size, thread, seal or specification] | [Van, shop or named job] | [First visit, diagnosis only or planned return] |
Use one row for each repair type. Split a row when the parts or compatibility checks differ. Broad labels such as “leaks” and “toilets” are not enough if the technician still has to guess what to load.
Review completed work orders. Find the parts used repeatedly, the supplier runs that interrupted jobs and the missing items that caused return visits.
Record the compatibility detail that could stop the repair. A fitting that looks similar is not an approved substitute. Check its specification and intended use before placing it in the live bin.
Carrying a regulated plumbing or gas-related part does not authorize the person carrying it to install it. Ask your provincial or territorial trade licensing and safety authority which licence or certification covers the work. Ask the local authority having jurisdiction whether the specific job needs a building or plumbing permit.
Choose the vehicle from the working load
The best van is not a particular make or model. It is the vehicle that can safely carry the defined load while keeping common parts accessible.
Lay out the load before selecting or refitting the vehicle. Include racking, occupants, tools, safety equipment, permanent stock, reserved materials, long goods and collected waste. Measure the complete working load instead of relying on a catalogue estimate.
Plan access as well as capacity. A large cargo area is no help when small fittings disappear behind tool cases. Put common repair parts near the working doors. Secure heavy items. Give long materials a fixed position. Keep clean stock away from wet equipment, chemicals and waste.
Good plumbing van organisation makes lookalike parts difficult to mix. Use labelled compartments. Keep specifications visible. Do not put different threads, seals or system types into one assorted bin because they happen to be similar in size.
Leave a separate space for materials reserved against accepted quotes. A box for tomorrow’s installation may be physically inside the van, but it is not available for today’s service call.
Compare each candidate vehicle against the measured load. Pass or fail it on every line:
| Test | Pass | Fail |
|---|---|---|
| Working load | The measured load, including racking and occupants, stays within the manufacturer’s payload limit | The decision relies on an estimated load or exceeds the stated limit |
| Racked dimensions | The fitted bins, tools and long materials fit inside the usable measured space | The plan relies on empty cargo dimensions before racking |
| Door access | Common parts can be reached without unloading unrelated equipment | Tools or stock block the working doors |
| Securement points | The planned load can be secured at suitable points | Heavy items or bins would remain loose |
| Reserved materials | Named-job materials have a separate secured space | Reserved parts must be mixed with free stock |
| Waste storage | Collected waste has a separate contained space | Waste must travel beside clean parts or safety equipment |
Check the applicable provincial or territorial commercial-vehicle and load-securement requirements before putting the van into service. If the vehicle fails one line, change the racking, reduce the load or test another vehicle.
Decide what earns permanent van space
Separate stock by purpose before setting quantities. Otherwise bulky or slow-moving items push useful repair parts out of reach.
Keep repeat repair parts in permanent stock
A permanent line should support a service call assigned to that van. It may be used often, difficult to replace during a live call or small enough to justify keeping nearby.
Useful categories can include:
- Repair fittings for pipe systems the technician encounters
- Isolation and water-control parts
- Tap, waste and toilet repair parts
- Washers, seals, clips and O-rings
- Fixings, brackets and site-protection consumables
- Jointing, sealing and cleaning materials
These are categories. They are not standard quantities. Set the quantity from your own usage and supplier run.
Hold bulky and uncertain items at the shop
Keep bulky, rarely used or uncertain items at the shop when the work can wait for planned collection. Give shared specialist parts a named location so technicians can find them before leaving.
Duplicate slow stock ties up cash and hides damage. If several vans carry the same untouched item, check whether it belongs in a shared location instead.
Reserve accepted-job materials by reference
Materials bought for an accepted quote belong to that job. Label them with the customer, job reference and planned vehicle. Keep them out of the free service stock count.
This matters for specified fixtures, unusual sizes and customer-selected products. If the work is a planned water-heater replacement, use the plumber water heater quote guide to separate the accepted scope from parts used for general repairs.
Record tools, safety equipment and waste separately
Tools are assets, not saleable parts. Ask your provincial or territorial occupational health and safety authority what inspection and record requirements apply to the safety equipment you carry. Chemicals may need controlled storage. Waste is not stock, even when it is still sitting in the van.
Keep these records separate from the plumbing parts inventory. One mixed list produces false stock values and useless replenishment orders.
Build a plumber van inventory checklist with clear stock lines
Every permanent line needs a description another technician can understand. Avoid labels such as “tap bits,” “miscellaneous fittings” or “assorted seals.”
Use this blank plumber stock checklist:
| Field | Entry |
|---|---|
| Stock item | [Clear part or consumable description] |
| Counting unit | [Each, metre, complete pack or another defined unit] |
| Supported repair | [Type of repair] |
| Specification | [System, material, size, thread, seal or other identifier] |
| Supplier reference | [Ordering reference] |
| Approved substitute | [Confirmed substitute or none] |
| Assigned van | [Vehicle reference] |
| Bin location | [Shelf, drawer or bin label] |
| Usable quantity | [Free stock available now] |
| Reserved quantity | [Stock held for named jobs] |
| Quarantined quantity | [Stock awaiting inspection or identification] |
| Confirmed incoming | [Ordered stock not yet received] |
| Reorder point | [Quantity that triggers replenishment] |
| Target level | [Quantity wanted after replenishment] |
| Last count | [Date and person] |
Choose one counting unit for each line. Use that same unit for physical counts, stock issues and purchase orders. An opened pack cannot be counted as one complete pack when pieces are missing.
Give every line one normal home. Put the same description on the bin, stock record and replenishment order. If a part must be stored in several places, record every location rather than leaving it in door pockets and unmarked cases.
Set up a quarantine bin. Put damaged, incomplete, opened and unidentified returns there. Nothing moves from quarantine to usable stock until someone confirms the condition, quantity and specification.
Set plumber van inventory reorder points from actual use
A reorder point triggers replenishment. A target level tells you how much stock you want after replenishment. They are not the same figure.
Use this framework for each line:
Reorder point = expected use during the supplier run and delivery time + chosen reserve
Take expected use from completed jobs assigned to that van. Use the real time needed to collect or receive the item. Then choose a reserve based on what happens if the part runs out.
A job-stopping part with no confirmed substitute may justify a different reserve from a consumable that can be collected without delaying the call. Make that decision line by line. Do not raise every quantity because one valve ran out.
Set the target separately. It should cover the work you expect before the next stock order.
When usable stock reaches the reorder point, review the line and calculate the top-up like this:
Order quantity = the greater of zero or target level − usable stock − confirmed incoming stock
Do not subtract reserved or quarantined stock as though it were available. Those quantities are already committed or cannot be fitted.
For a new van, begin with its assigned repair types. Watch what is issued, what runs out, what triggers emergency collection and what returns untouched. Revise the levels from those records rather than copying a generic list.
Adjust replenishment for Canadian routes and weather
A short urban route with nearby shop access is not the same as a wide service territory with limited collection options. Record the actual supplier run for each van.
Write down where the stock normally comes from, who can collect it and what can interrupt the run. Use the answer when choosing the reserve. Do not apply one national winter quantity to every vehicle.
Check manufacturer storage instructions for products carried through local cold weather. Some materials may have temperature or storage limits. Move affected products into suitable storage rather than assuming a parked van is an acceptable warehouse.
Route length also changes what “incoming” means. A purchase order is not usable stock. Count it as confirmed incoming only when the item, quantity and delivery or collection plan have been confirmed.
Review the assigned territory when routes change. A van moved to another branch, municipality or remote service area may need different reorder points even when its call types stay the same.
Count what can be fitted on the next call
A physical item is not automatically usable stock.
Exclude anything damaged, contaminated, incomplete, unidentified, reserved or waiting for a compatibility check. This is where a false count starts: the record shows a valve, but that valve is a damaged return or is reserved for tomorrow’s installation.
Inspect opened returns before putting them back into a live bin. Count the remaining quantity using the line’s defined unit. Do not return an opened package as a complete unit without checking its contents.
For a van-to-van transfer, reduce free stock on the source van, mark the part in transfer during the handover, then increase free stock on the destination van after receipt. A job-reserved transfer must remain reserved against that job.
Issue every used part to the correct job
Move stock through clear states: free, reserved, issued, checked return and quarantine.
Free stock is available for unplanned work. Reserved stock belongs to an accepted quote or booked job. Issued stock has been used or assigned to the work. A checked return has passed inspection and can move back into free stock.
When a technician takes a part from the van, record:
- Item and counting unit
- Quantity issued
- Unit cost at issue
- Total direct material cost
- Assigned van
- Job reference
- Change-order reference when the part supports extra work
This is basic material cost tracking. The part belongs to the job where it was used, not to a general monthly materials bucket. The job-costing guide explains how those material issues sit beside labour and other direct costs.
If an issued part comes back unused and passes the return check, reverse the issue against the same job and move the accepted quantity back into free stock. Put a rejected return into quarantine instead.
On Oak Street, extra cable and chasing were approved as a 160 change order. Issue the extra cable to that change order, not to the original quote or general van use.
Keep GST/HST treatment separate from the part count. The stock record answers what moved and where it went. Take GST/HST questions to the Canada Revenue Agency GST/HST page (opens in a new tab) and your business accountant.
Run a count-and-replenish routine
Count the lines that can stop the assigned calls before the van leaves. Set the wider count schedule from the rate of use, stockouts, transfers and condition of the bins. Do not invent one fixed schedule for every part.
Replenish to the target. Do not fill every empty space. An empty bin position may belong to a line that has been removed, moved to the shop or reserved only for certain work.
Review exceptions by van. Look at stockouts, urgent supplier runs, unexplained adjustments, damaged returns, transfers and stock that has not moved. Each exception should lead to a specific change to the stock line, bin or issue rule.
A work order template can give the technician a consistent job reference for issued materials. When a part leaves the plumber van inventory, Yes Foreman can keep its material note with the job. Open the last completed service call and correct its first unexplained material issue.