A plumbing business plan has two possible readers: a lender deciding whether to finance a truck, and you, deciding what the next year looks like. Most plans are written for the first and then never opened again, which is a waste, because the second reader is the one who needs it.
Write it short. Ten pages that are true beat fifty that are hopeful. Here’s what belongs in each section and what a lender actually looks at.
1. What the business does, in four sentences
Who you serve, where, and what work you take. “Residential service and replacement plumbing within thirty minutes of town, mostly water heaters, drain work and repipes, for homeowners and two property management companies.” That’s enough. Resist writing a mission statement, because nobody reads them and they tell a lender nothing.
2. The owner and the license
For a trade business this section carries more weight than anything else. Years in the trade, license number and class, the kind of work you’ve run, and whether you have supervised a crew. A lender financing a plumbing shop is mostly financing the person.
3. The market, kept honest
Who else does this work near you, and why a customer picks you. Good answers: you show up faster, you answer the phone, you leave a written price behind, you do the work the big shops treat as a nuisance. Bad answer: better quality. Every competitor wrote that, and nobody reading it believes any of you.
4. Pricing, which is the real plan
This is the section that decides whether the business works, and the one most plans skip with a sentence about being competitive. Show:
- Your fully loaded hourly cost, and how you got to it.
- Whether you charge flat rate, time and materials, or both and when.
- Your material markup.
- Your target gross margin per job.
If you haven’t built these yet, do that before writing another word of the plan. The method is in building a plumbing price book, and the choice between pricing models is in flat rate vs time and materials.
5. The numbers a lender checks
Four things, and they will be read in this order:
- Monthly fixed costs. Truck, insurance, phone, software, rent if any, your own draw.
- Break-even. How many billable hours or jobs a month covers those costs. State it as a number of jobs, because that’s a number you can picture.
- Cash flow timing. You buy material now and get paid in thirty to sixty days. Show you know the gap exists and how you’ll cover it.
- What the money is for. If you’re borrowing, say exactly what it buys and what that purchase lets you do that you can’t do today.
Build these from your own quotes and costs. Don’t import industry averages you cannot source, because a lender who has financed trades before will spot borrowed numbers immediately.
6. How work comes in
Specific channels, not “marketing.” Google Business Profile and reviews, the builders and property managers you already know, referrals from plumbers who are too busy, and whatever you pay for. For each one, roughly what it costs and what you expect from it.
7. The first twelve months, written as a list
A short plain list of what happens when. License and registration, insurance bound, truck and stock, first ten customers, first hire, software in place. Dates and nothing else. This is the part you’ll reread.
8. What could go wrong
Including this makes a plan more credible, not less. A slow quarter, a customer who does not pay, a truck down for two weeks, a callback that costs you a job. Say what you’d do. A lender has seen all of them and is watching whether you have.
Keep it alive
Put a date on it and reopen it every quarter with your actual numbers next to the planned ones. A plan written once and filed is a document. A plan you correct four times a year is a business.
If you’re still at the stage before all this, start with how to start a plumbing business.