Ops & Supply

How to set reorder points and safety stock as Local Service Business Founders

Ops & SupplyFor Local Service Business Founders2 apps12 steps~24 min to set up

You're running HVAC or plumbing with 8 field techs and your 'inventory system' is a whiteboard in the shop and a gut feeling about how many capacitors and copper fittings you burned through last week. When a tech texts that he's out of 3/4-inch ball valves on a Tuesday afternoon, you're driving to Ferguson before a job goes sideways. Jobber and Housecall Pro track the work orders but not the parts consumption. You have no reorder point set for anything — you just panic-buy when you notice a bin is empty. That costs you emergency supplier markups, lost afternoon dispatch windows, and the occasional job that has to get rescheduled because the part isn't there.

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Ops & SupplyFor Local Service Business Founders2 apps12 steps~24 min to set up

Outcome

What you'll set up

A live parts tracker that shows stock levels across your shop and truck inventory, with reorder points set per SKU based on how fast each part actually moves through your jobs

Automated alerts that flag when any item drops below its safety stock threshold — before a tech texts you from a crawl space asking where the 1/2-inch compression fittings are

A simple reorder workflow that drafts the supplier purchase order and logs it, so you're not rebuilding the same Ferguson or Johnstone Supply order from scratch every two weeks

The Starch recipe

Apps, data, and prompts

The combination of Starch apps, the data sources they pull from, and the prompts you use to drive them.

Apps used

Inventory Planner Demand Planner

Data sources & config

Starch automates your Jobber account through your browser — no API needed — to pull job history, materials used per job type, and completed work orders. It also connects to your QuickBooks from Starch's scheduled sync to cross-reference what you've actually been buying from suppliers. Both apps are currently in development; request beta access to get notified when they launch.

Prompts to copy

Track my shop parts inventory. I stock about 200 SKUs — PVC fittings, copper, ball valves, capacitors, contactors, Schrader valves, and filters. Set reorder points for each based on how many jobs per week use them. Alert me when anything drops below safety stock.

Look at my last 90 days of Jobber job history and tell me which parts I'm burning fastest by season. I want to know my peak usage weeks so I can set higher safety stock before summer AC season and before winter heating calls spike.

Run these in Starch → or paste them into your favorite agent

Walkthrough

Step-by-step

1 Connect Jobber through browser automation — Starch logs in through your browser, no API key required, and pulls the last 90 days of completed jobs along with materials recorded per job.

2 Connect QuickBooks via Starch's scheduled sync so purchase history from Ferguson, Johnstone Supply, or your other suppliers gets pulled in automatically and matched against what's going out the door.

3 Tell Starch your full parts list — paste or type your 200 SKUs, or let Starch pull the materials list from your Jobber job templates and build it for you.

4 Starch maps each SKU to its usage rate: how many units of each part you're consuming per week based on actual job history, broken down by job type (HVAC tune-up vs. emergency call vs. new install).

5 Set your supplier lead times per vendor — tell Starch 'Ferguson is 1 day, my refrigerant supplier is 4 days' — so safety stock calculations account for actual replenishment time, not a guess.

6 Starch calculates reorder points per SKU: daily usage rate multiplied by lead time, plus a safety stock buffer sized to your demand variability. You review and approve, adjust anything that looks off.

7 Set up a daily stock check automation: tell Starch 'every morning at 7am, check current stock levels against reorder points and Slack me a list of anything that needs ordering today before dispatch.'

8 When an item hits its reorder point, Starch drafts the purchase order line items — quantities, supplier, SKU — and sends it to you for approval before anything goes out.

9 Use the seasonal demand view to pre-position stock before summer AC season: Starch flags which parts spiked in previous summers and suggests temporarily raising safety stock levels for those SKUs starting in April.

10 Each week, review the consumption report — which techs are using which parts on which job types — so you can spot if one truck is going through twice as many contactors as everyone else (either a job mix issue or a billing miss).

11 When you add a new service line (say, you start doing mini-split installs), tell Starch the new job type and its typical materials list, and it folds those SKUs into the reorder point model.

12 Once a month, reconcile: Starch compares what it predicts you should have used against what QuickBooks shows you actually purchased, and flags the gap so you can catch parts going missing or jobs where materials weren't logged.

See this running on Starch

Connect your tools, describe what you want, and the agent builds it. Closed beta is free.

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Worked example

April 2026 Pre-Season Inventory Review — 8-Tech HVAC/Plumbing Shop

Sample numbers from a real run

5-ton capacitors (45/5 MFD)	24
Contactor 40A single-pole	18
Schrader valve cores (bulk)	200
3/4-inch ball valves	30
1/2-inch copper sweat couplings	150
20x25x1 filters (3-pack)	40

It's the first week of April and you've got 8 techs heading into summer AC season starting in May. Last summer you ran out of 45/5 MFD capacitors twice — both times you were paying Ferguson emergency pricing and losing half a dispatch day. Starch pulls your Jobber job history from May-August 2025 and shows you that your crew burned through 11 capacitors per week at peak. Your current stock is 24 units. With a 1-day Ferguson lead time, your reorder point should be 15 units with a safety stock of 8. You're fine right now but the model flags that by May 10th you'll be at reorder point if you don't pre-buy. Starch drafts a Ferguson order: 48 capacitors, 36 contactors, 4 cases of Schrader cores — the exact SKUs and quantities based on projected 12-week demand. You approve it in two minutes. You also see that your 3/4-inch ball valve usage is higher on the plumbing side than you expected — 7 per week versus the 4 you assumed — because you started doing more expansion tank replacements this spring. Starch updates the reorder point to 20 units and flags that your current stock of 30 gives you about 4 weeks of runway.

Measurement

How you'll know it's working

Stockout incidents per month — how many times a tech couldn't complete a job because a part wasn't available

Emergency supplier runs per week — trips to Ferguson or Johnstone outside your normal order cycle, which carry a premium and kill afternoon dispatch

Inventory carrying cost vs. usage rate — are you sitting on $4,000 of slow-moving parts while the fast-movers run dry

Parts cost as a percentage of job revenue by job type — tells you whether your material estimates in Jobber quotes are actually accurate

Days of safety stock on hand for top-20 SKUs heading into peak season

Comparison

What this replaces

The other ways teams handle this today, and how the Starch version compares.

Whiteboard + panic buying

Free to set up, costs you $200-400 per emergency supplier run and one blown dispatch window per stockout — adds up fast once you're past 5 techs.

Jobber's built-in parts tracking

Jobber tracks parts per job but doesn't calculate reorder points, doesn't set safety stock, and doesn't alert you before you run out — you still have to check it manually.

QuickBooks purchase history + spreadsheet

Your purchase history is in QuickBooks but turning it into a reorder model takes 2-3 hours of manual work every time you want to update it, and most owners stop doing it after the first month.

inFlow or Fishbowl Inventory

Purpose-built inventory tools that work well for warehouses, but they're designed for retail SKU counts and don't connect to Jobber job data to derive usage rates from actual field work.

On Starch RECOMMENDED

One platform — inventory planner, demand planner all running on connected data. Setup in plain English; numbers stay current via scheduled syncs and live agent queries.

Try it on Starch →

FAQ

Frequently asked questions

My techs don't always log the parts they use in Jobber. Will this still work?

It'll work better than a whiteboard, but yes — garbage in, garbage out. Starch can cross-reference your QuickBooks purchase orders against what Jobber shows as materials used, and flag the discrepancy. That gap report often motivates teams to start logging parts correctly once they see how much is going untracked.

I use Housecall Pro, not Jobber. Can Starch pull my job history?

Yes. Starch automates Housecall Pro through your browser — no API needed — the same way it works with Jobber. You log in, Starch can navigate the job history and materials sections just like you would.

When are the Inventory Planner and Demand Planner apps actually available?

Both are currently in development. You can request beta access on the Starch site to get notified when they launch. In the meantime, you can describe what you want to Starch directly — 'track my top 50 parts and alert me when anything drops below reorder point' — and Starch will build you a custom app using your connected data sources.

Is Starch SOC 2 certified? My parts data isn't sensitive but I'm connecting QuickBooks.

Starch is not SOC 2 Type II certified today. If your business requires SOC 2 compliance from every vendor that touches financial data, that's worth knowing upfront.

Can this actually send the purchase order to Ferguson, or does it just draft it?

Starch can draft the order and, through browser automation, navigate to your Ferguson or Johnstone Supply account and submit it — no API needed. You'd set up the automation to require your approval before anything gets submitted, or let it auto-submit for reorders under a dollar threshold you define.

I have parts on three trucks and in the shop. Can it track all of those separately?

Yes. Tell Starch 'track shop inventory and three truck inventories separately, and show me a combined view plus individual levels per truck.' You'd need a way to log when techs take parts from the shop to the truck — that's the manual step — but Starch can build you a simple form for techs to fill out from their phone when they restock the truck.