How to Value a Multi-State Plumbing Company in 2026

Plumbing is the quiet stepchild of the home services consolidation story. HVAC gets all the press — the billion-dollar platforms, the splashy exits, the named PE sponsors. Meanwhile, plumbing operators doing $8-15M EBITDA are quietly clearing 9-10x multiples in deals that never make the trade press. If you're running a multi-state plumbing company and thinking about an exit, you're in one of the most attractive corners of the trades market right now.

But plumbing has regulatory quirks that HVAC doesn't, and those quirks directly determine how much buyers will pay. Let me walk through how the multiples actually work and what trips up sellers.

Why Plumbing Multiples Run 7-11x EBITDA

Plumbing shares most of the traits that make HVAC attractive to PE. Non-discretionary (if your sewer line backs up, you're calling today, not next month), fragmented (tens of thousands of independent shops), and increasingly a recurring-revenue business as drain cleaning memberships and whole-home service plans take hold. But plumbing has two additional dynamics that buyers love.

First, ticket sizes are higher and less seasonal than HVAC. A sewer line replacement is $8,000-$18,000. A water heater swap is $2,500-$6,000. HVAC is concentrated in summer emergencies and has a winter lull. Plumbing generates roughly even revenue across all four quarters, which buyers value because it reduces working capital swings.

Second, competitive density is lower. A metro with 400 HVAC shops might only have 150 plumbing shops, and half of those are one-person operators who can't scale. That scarcity shows up in the multiple.

For a broader view of trades multiples, see our business valuation multiples by industry guide.

The 2026 Multiple Ladder

• Single location, $500K-$1M EBITDA: 3.5-5x. Heavily owner-dependent.
• Multi-location single state, $2-4M EBITDA: 5-6.5x. Proven repeatability in one jurisdiction.
• Multi-state, 2-3 states, $4-8M EBITDA: 6.5-8x. Regional platforms start paying attention.
• Multi-state, 4+ states, $8-15M EBITDA: 8-10x. Genuine platform candidacy.
• $15M+ EBITDA multi-state with high recurring: 10-11x. Top of the market.

A $10M EBITDA four-state plumbing operator with 35% recurring revenue and clean ServiceTitan data routinely closes at $85-$100M. The same operator with undocumented add-backs and three different dispatch systems closes at $55-$65M. The gap is preparation, not fundamentals.

Regulatory Complexity: The Real Multi-State Challenge

Plumbing licensing is materially more complex than HVAC in most states, and this is where multi-state operators either create value or get destroyed in diligence.

Master plumber requirements vary wildly. In Texas, you need a Responsible Master Plumber (RMP) on the license for every company location. The RMP must be a W-2 employee, not a contractor, and they can only serve as RMP for one company at a time. In Florida, you need a state-certified plumbing contractor license. In California, it's the C-36 contractor classification. In Massachusetts and New York, requirements vary by municipality within the state. Buyers doing diligence will request every license, every RMP employment agreement, and every renewal date — and they'll calculate the probability of a key-person departure disrupting operations.

I've seen deals lose an entire turn of multiple because the seller's Texas RMP was 63 years old, planning to retire, and had no documented succession plan. The buyer modeled a six-month operational disruption in Texas and deducted $3.5M from the purchase price.

Permit pulling workflows differ by jurisdiction. Some cities require the master plumber to personally pull permits. Some allow delegation. Some have online permit systems; others require in-person appearances. A buyer looking at a five-state operator is underwriting five different compliance regimes, and any gap creates risk.

Backflow prevention certifications are an underappreciated value driver. In states with heavy commercial backflow testing requirements (California, Texas, Washington), certified backflow testers are hard to hire and generate high-margin recurring testing revenue. A plumbing operator with 10+ certified backflow testers spread across multiple states carries a compliance moat that adds 0.2-0.5x to the multiple.

State-Specific Dynamics Buyers Actually Underwrite

Not all states are equal in the plumbing consolidation thesis. Buyers pay different multiples for the same EBITDA depending on where it's generated.

Sunbelt premium. Texas, Florida, Arizona, Georgia, Tennessee, and the Carolinas command the highest multiples because of population growth and new construction demand. EBITDA generated in Phoenix is worth more to a PE buyer than the same EBITDA generated in Cleveland.

California discount. California operators face labor cost pressure, strict contractor licensing, and prevailing wage requirements on commercial work. The same EBITDA generated in California typically trades at a 0.5-1.0x discount to a Sunbelt equivalent. Buyers love the revenue, but they underwrite the regulatory drag.

Northeast complexity. Massachusetts, New York, and New Jersey have heavy union dynamics on commercial work and municipality-by-municipality licensing. Residential-focused operators in these states are fine; commercial-heavy ones face buyer scrutiny around union exposure.

What Drives Multiples Up or Down

Service vs new construction mix. Residential service and repair is valued at 8-10x. New construction plumbing (tract homes, multifamily rough-ins) is valued at 4-6x because margins are thin and it's cyclical. A multi-state operator with 85% service revenue will beat a 50/50 service/new-construction operator every time, even with identical EBITDA.

Average ticket size. Operators averaging $1,200+ per service call are valued higher than those averaging $450. The high-ticket operators have typically built sewer line replacement, tankless water heater, and repiping capabilities — all high-margin, high-value services.

Membership or maintenance plan penetration. Plumbing memberships are newer than HVAC memberships, and anyone above 25% household penetration is ahead of the curve. Each 10 percentage points of membership penetration adds roughly 0.3-0.5x to the multiple.

Fleet and equipment condition. A multi-state operator with a modern fleet (trucks under 5 years old, jetters, camera equipment, trenchless repair gear) is worth more than one whose capital base is exhausted. Buyers will do a physical inventory during diligence and adjust the price for deferred capex.

Active PE Platforms in Multi-State Plumbing

• Apex Service Partners and Wrench Group — both bundle plumbing with HVAC and electrical under their home services theses.
• Rooter Hero Plumbing (Riverside Partners) — pure-play plumbing and drain consolidator, active acquirer of $2-8M EBITDA operators.
• Mr. Rooter (Neighborly, owned by KKR) — franchise-based, but Neighborly has been buying corporate locations as well.
• Roto-Rooter (Chemed, public) — strategic acquirer, will pay premium for geographic fit.
• PowerTen Partners, Sun Capital, and Gryphon Investors — active in mid-market home services roll-ups including plumbing.

How to Prepare for a Multi-State Plumbing Exit

Document every license and RMP relationship. Create a single spreadsheet showing state, license number, RMP name, employment status, renewal date, and succession plan. This alone can save a full turn of multiple.

Migrate to a single field service platform. ServiceTitan dominates the category. Running multiple systems across states is the fastest way to get discounted.

Push membership attachment. Train technicians to offer the plan on every call. Get above 30% penetration before going to market.

Shift mix toward service. If you have a new construction division, decide whether to wind it down or spin it off before sale. Buyers will either pay a blended multiple (bad) or discount the new construction revenue entirely (worse).

Get sell-side Quality of Earnings. The best $100K you'll ever spend. See our guide on preparing your business for sale for the full timeline.

The Bottom Line

Multi-state plumbing is one of the most undervalued exit opportunities in home services right now. Operators who understand the regulatory landscape, document their licensing, and present clean consolidated financials clear multiples that rival HVAC platforms — sometimes exceed them. The key is recognizing that plumbing's regulatory complexity is both a moat and a diligence risk, and managing both sides of that equation before you go to market.