What a Plumbing or HVAC Franchise Actually Costs in 2026

If you own a plumbing, HVAC, or electrical business and you've ever looked at franchising, you've seen the number they lead with: the initial franchise fee. Usually somewhere around $42,500.

That number is real. It's also the smallest of the numbers that matter.

Every franchise in the United States is required to publish a Franchise Disclosure Document — an FDD — that lays out every fee in plain text. Almost nobody reads it. This post is the FDD math for two of the biggest names in trades franchising, done out loud, with no conclusion pushed on you. The numbers below come from the current disclosure documents: Mr. Rooter's 2026 FDD and Benjamin Franklin Plumbing's 2025 FDD. Before signing anything, always pull the FDD itself and have a franchise attorney read Item 5 through Item 7 with you.

The Two Numbers Nobody Quotes Together

Franchise marketing quotes the initial fee. Franchise contracts collect the royalty.

The initial fee is a one-time payment. The royalty is a percentage of your gross sales — not your profit, your revenue — paid every month, for the entire term of the agreement, which is typically ten years.

For both franchises below, the ongoing take is the same: 6% royalty plus a 2% national ad fund, for 8% of every dollar you bill. (Benjamin Franklin's marketing fee shows as 1.5–2% depending on the source and tier; call it roughly 8% all-in for both.)

Keep that 8% in your head. The rest of this post is about what it means.

Mr. Rooter, Itemized

From the 2026 FDD:

• Initial franchise fee: $42,500, plus $425 per 1,000 people of territory population over the minimum. Bigger territory, bigger fee.
• Royalty: 6% of gross sales.
• Marketing (MAP) fee: 2% of gross sales. Local co-op marketing groups can add up to 3% more.
• Total initial investment: $152,900 to $298,675 — and that excludes real estate.

That last number surprises people, so here's where it goes. The FDD's own Item 7 breakdown includes a vehicle ($25,000–$69,300), equipment and inventory ($25,000–$40,000), insurance ($12,000–$18,000), initial advertising ($12,500–$30,000), training and travel ($4,000–$8,000), ServiceTitan software ($2,800–$8,200), professional fees, permits, and three months of operating capital ($20,000–$45,000).

The $42,500 fee everyone talks about is roughly a quarter of what it actually costs to open the doors.

One more figure from the same document, because it matters for the math later: Mr. Rooter reports that across 193 franchises, average gross sales in 2025 were $2,093,531.

Benjamin Franklin Plumbing, Itemized

From the 2025 FDD:

• Initial franchise fee: $43,000, plus $0.43 per person of territory population above 100,000.
• Royalty: 6% of gross revenue.
• Marketing fee: 1.5–2% of gross revenue.
• Total initial investment: roughly $143,000 to $287,000 for a new operation.

There's one number in Benjamin Franklin's disclosure that's especially relevant if you already own a plumbing company: converting an existing business runs $84,570 to $204,824. That's the price of taking the business you already built, putting someone else's name on the trucks, and agreeing to the royalty — on revenue you were already generating.

The Arithmetic: What 8% Actually Means

Percentages hide things. Dollars don't. Here's 8% of gross at three revenue levels, using round numbers:

• A $750K shop pays about $60,000 a year. Over a ten-year term: $600,000.
• A $1.5M shop pays about $120,000 a year. Over ten years, with the initial fee: roughly $1.24 million.
• The average Mr. Rooter franchise — $2.09M by their own disclosure — pays about $167,000 a year. Over ten years: about $1.67 million.

Now the part that the "it's only 8%" framing skips: royalties come off gross, but you feel them in profit.

Say your $1.5M shop nets 10% — $150,000 to you at the end of the year. Inside a franchise, $120,000 went out the door in royalties and ad fund before you got paid. Put differently: for the franchise math to merely break even, the brand and its systems have to make your business meaningfully bigger or more profitable than it would have been on its own — every single year, for ten years.

Sometimes that happens. Which brings us to the honest part.

What That Money Actually Buys

Franchises are not a scam, and the good ones deliver real things. If you're evaluating one seriously, this is what the fee and the royalty genuinely get you:

• An operations playbook. Pricing books, call scripts, dispatch procedures, KPIs, org charts for scaling past the owner-operator stage. This is the real product, and it's genuinely valuable.
• Training. Typically a couple of weeks up front, plus ongoing coaching and an annual conference.
• Marketing systems. A working website, call tracking, review generation, ad programs — turned on from day one instead of assembled over years.
• A software stack, chosen for you. Often ServiceTitan or similar, pre-configured to the playbook.
• A peer network. Hundreds of other owners running the same model, sharing what works.
• Purchasing power. National accounts and equipment discounts you can't get alone.
• A protected territory. No other franchisee of the same brand can set up inside your lines.

Read that list again, though, and notice what almost every item has in common: they're systems. Processes, software, marketing machinery, and training. Things that exist independently of the name on the truck.

What It Doesn't Buy

• A brand your customers know. Ask ten homeowners in your city to name a plumbing franchise. Most can't name one. Trades are local; the brand equity that matters is the one attached to your name, your trucks, and your reviews.
• Brand equity you own. Every dollar of reputation you build accrues to their name. Leave the system, and the name, the website, and often the phone number stay behind.
• Freedom to grow past your lines. The protected territory protects you — and contains you. The next territory over may already be sold.
• A clean exit. Selling a franchise means selling to a buyer the franchisor approves, often paying a transfer fee, and sometimes navigating a right of first refusal. Your non-compete typically survives the sale.
• Your own playbook. The systems are licensed, not owned. Stop paying, and the binder goes back on their shelf.

The Question to Actually Ask

The franchise pitch is built on a false choice: buy the franchise and get the systems, or stay independent and keep winging it.

But the list above tells you what you're really shopping for. Not a name — a website that books jobs, a phone that always gets answered, estimates that get followed up, reviews that accumulate, invoices that get paid. The franchise bundles those systems with a contract, a royalty, and a decade-long commitment.

So the question worth sitting with isn't "can I afford $42,500?" It's this: can you get the systems without the contract?

If a franchise would make your $1.5M shop into a $2.5M shop, the 8% may be worth every penny — that's a real outcome for some owners, and the FDD's own averages show franchisees doing serious revenue. But if what you actually need is the systems layer, you're pricing a $1.24 million bundle that can be bought à la carte, under your own name, with nothing to hand back if you ever stop.

That's the math nobody puts in the brochure. Now you've seen it.

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Want the full breakdown? We put together a free cheatsheet that itemizes exactly which systems a trades franchise provides — and what each one costs to build independently, under your own brand. Get the Franchise Systems Cheatsheet.

Sources

• Mr. Rooter figures: the 2026 Franchise Disclosure Document, as summarized in Franchise Chatter's 2026 Mr. Rooter FDD review — initial fee, royalty, MAP fee, Item 7 investment breakdown, and Item 19 average gross sales.
• Benjamin Franklin Plumbing figures: the 2025 Franchise Disclosure Document, as summarized in Franchise Chatter's 2025 review and Franchise Payback's FDD summary.
• Want the primary documents? FDDs are public records in registration states. Search Wisconsin DFI's franchise registry or Minnesota Commerce's CARDS database by franchisor name and download the full PDF free.

FDDs are updated annually; verify current figures against the documents themselves before making any decision.