Plumbing business acquisitions sit in a 2.5×–4.5× SDE band. Top-of-band placement is structural — recurring service-agreement revenue, master-license depth across jurisdictions, and route-density economics.
of deals presented emergency call revenue as steady-state recurring SDE. Emergency volume is weather- and event-driven — not a recurring floor.
Band stable. Service agreement recurring share is the primary multiple driver — deals above 35% recurring trade at the top third.
SBA fall-through cause: owner-plumber normalization compressing DSCR. Owner running high-value jobs cannot be replaced at the headline salary add-back.
of deals had master plumber license held solely by exiting owner. Cannot pull permits at close without documented license continuity plan.
Emergency call revenue is not a recurring floor — it is a measure of how aggressively a plumber markets 24/7 availability in a given area. In years with severe winters or aging housing stock events, emergency volume spikes. In mild years, it compresses. Presenting trailing-12 emergency revenue as the basis for SDE is the most common quality-of-earnings error in plumbing deals. Require a 3-year revenue segmentation (service agreements, scheduled service, emergency calls) before applying any multiple.
The permit-pull gap closes deals. In jurisdictions where permit authority requires a licensed master on the job site or named on the pull application, the exiting owner's departure creates an immediate operational gap. A buyer who assumes they can use the owner's license during a transition period while they hire a replacement master is creating unlicensed contracting liability. Verify the replacement path at LOI, not after.
Read the full Q1 2026 Atlas →The plumbing research stack.
Atlas for the numbers. Playbook for the framework. Apply it to the deal in front of you.
Q1 2026 Industry Atlas
Trailing-12-month band, structural conditions, sources, and methodology. Quarterly. Dated. Citable. Built to be forwarded by lenders.
Underwriting Playbook
The four-pillar lens applied to plumbing business acquisitions. Structural failure modes. Pre-LOI verification priorities. Master spoke for the vertical.
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