Consumer financing for plumbing: how to offer it and close bigger jobs

A failed water heater doesn’t wait for payday, and a collapsed sewer line doesn’t care what’s in the homeowner’s savings account. When a repipe lands at $8,000-$15,000, a sewer line replacement runs into five figures, or a whole-home water treatment system prices out higher than the customer expected. “Let me think about it” is usually code for “I can’t write that check today.” Financing is how you turn that stall into a signed job, and how the shop across town is beating you on work you were better qualified to do.

Here’s how it actually works, what it costs you, and how to roll it out without giving away margin.

How contractor financing works

You register as an authorized dealer with a lending partner. The lender holds the license, runs the credit check, handles the disclosures and regulatory compliance, and pays you directly after the work is complete. Your job is small and specific: introduce the option and hand the customer a link or tablet. They apply on their phone, get a decision in minutes, and you get funded on completion. You are not the bank, and you are not on the hook if they stop paying.

That division of labor matters. You get the close and the cash; the lender carries the credit risk and the paperwork.

The dealer fee, the part nobody explains up front

Financing isn’t free to you. The lender charges the contractor a dealer fee (sometimes called a merchant discount) on each funded loan. As a general shape of the market:

Product	Typical dealer fee
Standard installment loan	~1-6%
12-month 0% “same-as-cash”	~5-9%
18-24 month 0% promo	~9-15%+

The flashier the promo the customer sees, the more it costs you. A 24-month 0% offer can run into the double digits. Providers vary widely, and every provider publishes its own rate card. The ranges above are ballpark, not quotes. Confirm current numbers directly with each provider before you build them into pricing; they change and they differ by product and credit tier.

You generally cannot show the dealer fee to the customer, and most programs prohibit adding a surcharge for financing. So the fee has to live inside your pricing.

How to price the fee in without gouging cash customers

The clean way is to blend it across your book, not bolt it onto financed jobs.

Say roughly a third of your big jobs get financed at a blended dealer fee somewhere in the high single digits. Multiply your financed share by your blended fee and you get the slice of cost that needs to be absorbed across every quote. For most shops that lands in the low-single-digit-percent range. Build that into your standard pricing and the math works: cash customers are barely affected, financed jobs pay for themselves, and you never have to have an awkward “financing costs extra” conversation. (Run the numbers with your own attach rate and your provider’s actual fees, don’t copy a percentage from an article.)

What you should not do: quote a lower “cash price” and a higher “financed price.” On most dealer agreements that’s a violation, and it trains customers to haggle. Before you finalize how you price the fee in, read your specific lender agreement and check your state/provincial rules: some jurisdictions and some agreements treat any price differentiation, surcharge, or disclosure differently, and U.S. consumer-financing offers are governed by the Truth in Lending Act. When in doubt, ask the lender’s dealer-support line and, for anything gray, your accountant or a lawyer.

This is also why your flat-rate price book has to be solid before you turn financing on. You can’t absorb a fee inside a number you’re guessing at.

The promotional-financing trap (protect your customer, protect your reputation)

The famous “0% for 12-24 months” and “same-as-cash” offers have a catch that burns homeowners who don’t read carefully: most are deferred-interest products. If any balance remains when the promo period ends, interest is charged retroactively, on the original purchase amount, from day one, often at a high APR. (Confirm the exact rate and terms with the provider; deferred-interest math is unforgiving.)

A customer who gets surprised by that will blame you, not the lender. So say it plainly at the table: “This is zero percent if it’s paid off within the promo window. If there’s a balance left after that, they charge back-interest on the whole amount, so treat it like a payment plan, not a free ride.” That one sentence protects the relationship and the reviews that follow it.

Which provider(s) to sign up with

You don’t need ten. Start with one strong general partner, and add a second only if you find real approval gaps. Think in categories rather than chasing a specific name:

• Broad approval / simple, transparent fees: general home-services lenders that do soft-pull prequalification and flat, easy-to-explain pricing. Good for the bread-and-butter repair-and-replace ticket where speed and approval rate matter more than a flashy promo.
• Deep promo menus / larger loan amounts: home-improvement lenders and bank-backed programs that carry long menus of promotional products (extended 0% terms, longer amortizations). These fit the big-ticket work, full repipes, sewer line replacement, well systems, where a low monthly number closes the job, but the dealer fees on the long promos are higher.
• Manufacturer / distributor programs: if you install a major brand of water heaters, tankless units, water treatment, or well equipment, ask your distributor whether there’s a sponsored financing program. Brand- or supplier-sponsored financing often carries lower dealer fees than signing up retail.

Ask your distributor before you sign anything retail. Whatever you pick, verify current dealer fees, loan limits, and approval behavior directly with the provider, don’t rely on secondhand numbers.

🇨🇦 In Canada: most of the big US names don’t operate north of the border. Look at Canadian home-improvement consumer-financing providers instead. The common ones lend against exactly this kind of work, and several distributor/OEM programs run through them. The mechanics (dealer fee, promo/deferred-interest, funded on completion) are the same, but disclosure and cost-of-borrowing rules fall under provincial consumer-protection law rather than the US Truth in Lending Act. Confirm the required disclosures for your province before quoting terms.

Where financing actually moves the needle: the big jobs

Financing barely matters on a $250 faucet swap. It’s decisive on the work that scares homeowners with its price tag:

• Repipes (whole-home PEX or copper), often deferred or delayed for years because of a lump-sum sticker shock a monthly payment erases.
• Water heater replacement, especially the upgrade to tankless, see the water heater profit-center guide for why this is your most reliable margin, and why a payment option is what gets the customer off the entry-level tank.
• Sewer line replacement / trenchless: an emergency-priced job the homeowner never budgeted for. This is the single most common place a plumber loses a job to “I’ll call around.”
• Well systems and water treatment: high-ticket, quality-of-life upgrades that people want but treat as optional until a monthly number makes them feel affordable.

Present it as good-better-best

Financing and tiered options are made for each other. When you present a repipe, a heater, or a sewer job, don’t hand over one number, hand over three, each with a monthly payment beside the total:

• Good: the code-compliant fix that solves today’s problem. The floor, not the recommendation.
• Better: the durable, right-sized solution most customers should choose (better materials, longer warranty, the fix that won’t be back in five years).
• Best: the premium option: tankless instead of tank, trenchless instead of dig-and-replace, whole-home treatment, longer labor warranty.

Put the monthly payment next to each: “The full repipe is $11,900, or about the price of a phone bill per month over the promo term.” The monthly framing is what lets a homeowner reach for Better or Best instead of defaulting to the cheapest option their checking account allows. Tiered pricing without a payment option leaves money on the table; payments without tiers just finances the cheap job.

Rollout checklist

• Pick one primary lender (two max). Prioritize approval rate and fee transparency over the flashiest promo.
• Check whether your distributor or a manufacturer has a sponsored program with better dealer fees before signing up retail.
• Blend the dealer fee into your standard pricing, no separate “cash vs. financed” prices. Base it on your attach rate and your provider’s actual fees.
• Put the apply link on every big-job estimate, your website, and a QR code in the truck.
• Train techs to offer it every time on repipes, heaters, sewer, and treatment, not just when a customer flinches at price.
• Build good-better-best into your estimates for every big job, each tier showing a monthly payment.
• Script the deferred-interest warning so every customer hears it.
• Track your financing attach rate and approval rate monthly; if approvals are low, add a second lender that catches thinner credit.

To find suppliers and equipment for the jobs financing helps you close, browse our directory.

The bottom line

Financing isn’t about selling to people who can’t afford your work. It’s about not losing good customers to a cash-flow timing problem, and about letting the homeowner choose the right fix instead of the cheapest one their checking account allows. Price the fee in, warn about deferred interest, present the big jobs as good-better-best with a monthly number, and offer it every time. Done right, your average ticket goes up and your close rate on repipes, heaters, and sewer replacements goes with it.

General information for plumbing business owners, not financial or legal advice. Confirm current dealer fees, terms, and compliance rules directly with each lender.