Emergency plumbing calls are won before they happen. When a pipe bursts at 11 p.m., the homeowner doesn’t research — they grab the fridge magnet, dial the number, and ask how fast you can get there. That magnet is the single highest-ROI piece of marketing a residential plumber can run.
Why magnets beat door-hangers
Door-hangers get thrown away. Postcards get recycled. A well-designed refrigerator magnet sits in the kitchen for years — the exact place a homeowner is standing when they realize the dishwasher is leaking. Average dwell time on a refrigerator magnet is over three years; cost per impression works out to fractions of a penny.
Who to mail to
Three filters: homeowner, home built before 1990, and inside your service radius. Older homes have older plumbing — the prospect base for re-pipes and water-heater replacements is concentrated there. Recently-moved homeowners are the second segment to target, because the kitchen wall is empty and your magnet is the first one up.
What goes on the magnet
Three things: company name in a font readable from across the kitchen, local phone number (no 800), and a single line of trust signal — ‘Locally owned since 1998’ or a state license number. Skip the QR code, skip the website URL, skip the offer. The magnet’s job is to be findable at 11 p.m., not to drive a coupon redemption.
The compounding payoff
Mailings of 8,000–12,000 magnets typically pay back inside ninety days from initial calls alone — and then keep generating calls for years. There is no other plumbing-marketing investment with the same multi-year tail.
Put this playbook to work
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