Blog · Plumbing · May 14, 2026 · 7 min read
A Practical Plumbing Truck Stock List (Residential Service)
You do not need 800 SKUs on a service truck. You need the 80 that close the calls you already run.

The closer list
Supply lines, shutoffs, wax rings, flappers, fill valves, 1/2" and 3/4" ball valves, common PEX and copper fittings, cement, tape, and a couple of disposal flanges. That list pays the rent.
Put those on every service van with min stock. Everything else is a candidate for the warehouse until data says otherwise.
Water heaters are a kit, not a lifestyle
Do not carry a water heater on every truck “just in case” unless you truly sell same-day swaps every day. Carry the flex, valves, and fittings. Pull the tank from the shop when the job is sold.
A tank on a van that never sells one is a dented, dirty $900 paperweight.
Toilets and trim
One common toilet and a set of seats/supplies is enough for many residential vans. Specialty comfort-height or one-piece units wait at the shop. Trim kits get stolen by entropy — count them or stop stocking them on the truck.
Photo the common fill valve. It will be the most replaced part you still grab wrong when you are in a hurry.
Gas and water stay labeled apart
If you do gas, give it a zone and a category. Yellow and blue do not mix in a dark van. Your inventory categories should match the physical split so restock cannot dump a gas cock into a water bin.
New helpers should be able to restock without asking a journeyman what “that yellow valve” is. The label and the photo do that job.
Rebuild the list from scans in 45 days
Your first list will be wrong. That is fine. After 45 days of job scans, sort by quantity used. Promote the surprises. Demote the museum pieces. This is the only stock list that deserves to be laminated.
FleetStock reports are how you do that without arguing from memory in the shop kitchen.
FAQ
How many SKUs on a residential service van?
Many shops land between 70 and 150 tracked SKUs plus a few bulk bins. If you are over 250, you are probably rolling a warehouse.
Should we stock a water softener?
Only on the van that sells them. Otherwise warehouse.
What about drain chemicals?
If you use them, track the bottles you bill. Do not hide a chemical crate that nobody counts.
See what is on every truck this week
14-day free trial. Then one yearly invoice — $129, $197, or $249.
