Industries · Plumbing & HVAC

Cut stockouts at the counter without over-buying

Whitespace helps plumbing and HVAC distributors decide reorder quantities and run purchasing with AI, so the parts contractors come in for are on the shelf.

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Exposed HVAC ductwork and copper pipework

Whitespace agent

PEX-050 sold 300 yesterday against 30 a week. Was that a one-off job? If so, I'll hold the reorder until next week.

ApproveShow the working

The problem

What plumbing and HVAC distributors tell us about replenishment.

Stock at the wrong branch

One big contractor can empty several branches at once while the same part sits at another. Buyers end up reordering stock the business already owns.

One project read as a trend

A line that sells 20 a year sells 15 in a day for one job. A rolling average reads that as demand, and the next PO over-buys.

Lost sales that never reach the data

A contractor asks for 30, the branch has 10, so the order says 10. The real demand never shows up, and the line stays under-bought.

The same lines every week, while others sit

Buyers re-check the same items week after week, while slow lines sit on the shelf and tie up working capital.

The solution

No more manual line-by-line ordering.

Every line reviewed and explained. Agents work out what each product needs and draft the order. Your buyers check it, sign off line by line and export the PO.

ReorderERP · updated 05:40 Export

Cover by product

SKU

Product

Stock

Sales/wk

Cover

AI order

CAP-45/5

Dual run capacitor 45/5 µF

0.6 wk

240

CON-2P-30

Contactor 2-pole 30A 24V

0.8 wk

100

top buyers · last 4 wks

customer	Aug 3	Aug 10	Aug 17	Aug 24
Alvarez Heating	74		96	58
Northside Plumbing	41	66		47
Keller Mechanical	28		52
Brightwater HVAC		35	21	30
Dunmore Services	15			22

CU-EL-075

Copper 90 elbow 3/4"

410

260

1.6 wk

900

PEX-050

PEX-A pipe 1/2" × 100 ft

2.8 wk

Every number explains itself, fully traceable and auditable.

Demand to next PO+121

Free stock + on order−21

AI order, rounded to pack100

80%

time saved on reordering

Fewer stockouts on the parts contractors come to the counter for.

Less cash tied up in stock bought for a job that won't repeat.

01 · Stock at the wrong branch

Nothing is bought without your buyer

Each line comes with its reason and questions, so buyers can move stock from another branch before they sign off.

02 · One project read as a trend

Questions before a one-off job is repeated

Sales rates blend 30, 90 and 270 days, and when a line jumps the AI asks your buyer whether it was a one-off before the next PO.

03 · Lost sales that never reach the data

Reordered before the shelf is empty

Cover is checked against lead time on every SKU, so lines are reordered while there is still stock to sell at the counter.

04 · The same lines every week, while others sit

Order now or wait, with a date

The AI says whether each line should be ordered now or wait, until when, and why, and orders only cover the horizon net of free stock and open POs.

Beyond inventory planning

Run more of your business on Whitespace

Inventory planning is one product on the Whitespace platform. The same platform runs order processing, customer service and data analysis, plus custom agents for jobs specific to your business.

Agents

Agents built for the jobs distributors do every day.

Inventory Planning
Order Processing
Customer Service
Data Analysis
+ Custom agents

Context & knowledge

A living brain of your business that powers every agent.

Integrations

Reads from and writes back to your ERP, Outlook, accounting software and WMS.

Specialization for distribution

An agentic harness that makes general-purpose models reliable for distribution workflows.

Large language models

Model-agnostic. Each task runs on the best, most cost-effective model.

See how you can stay ahead of the competition.

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