Severe · confirmed live 2026-09-05
A. Entity collision — one identity, two franchises
Mr. Rooter Plumbing of Elgin declares, in its own
schema.org/Plumber sameAs array, the Facebook page ID and
a Yelp listing belonging to Mr. Rooter Plumbing of Cook County.
| Field | Cook County | Elgin |
|---|---|---|
name | Mr. Rooter Plumbing of Cook County | Mr. Rooter Plumbing of Elgin |
address | Elk Grove, IL 60007 | Bartlett, IL 60103 |
telephone | 8476863200 | 8476863200 — identical |
sameAs Facebook | …/Mr-Rooter-Plumbing-of-Cook-County-898973246879421/ | …/898973246879421 — the same page ID |
sameAs Yelp | …/mr-rooter-plumbing-of-cook-county-schaumburg-2 | …/mr-rooter-plumbing-of-cook-county-elk-grove |
areaServed | 42 Chicago-area municipalities | 13 Fox Valley municipalities — disjoint |
sameAs is the strongest entity-identity signal a business can emit — it
is the explicit instruction to a machine reader that two records are one thing.
These two have disjoint service areas and different addresses, so they are plainly
separate franchises.
Consequence: an answer engine asked for the Elgin plumber can legitimately return the Cook County address, the Cook County review corpus, and a phone that rings the Cook County office. One franchisee pays for a lead that is attributed and routed to another. Nothing on the Elgin website looks wrong to a human.
Re-pulled directly from /elgin/ and /cook-county/ on 2026-09-05. Unchanged from run 1.