A solo plumber keeps up with paperwork by finishing it job by job, in the truck, before driving to the next call. If you close each job the same day, with the work, the parts, the invoice and the payment status all recorded, nothing piles up for the kitchen table at 10 p.m. Whether you use a notebook or a phone, the routine below works the same way.
What paperwork does a solo plumber have to keep up with?
A solo plumber has to keep up with six kinds of paperwork: estimates, job records, invoices, payments, parts receipts and money set aside for taxes. Everything else you do with paper or files falls under one of those six.
- Estimates: what you quoted and whether the customer said yes.
- Job records: who, where, what you did, labor and parts.
- Invoices: what you billed and when it's due.
- Payments: card, check or cash, and which invoice each one paid.
- Parts receipts: supply house tickets matched to the job they went into.
- Tax money: a share of each payment set aside. Ask a tax professional how much and when it's due, because your situation and your state matter.
A paper notebook can carry all six for a few jobs a week. Once you're running several calls a day, the gap between finishing a job and writing it down is where invoices get lost.
Can I run my plumbing business from my phone?
Yes, a solo plumber can run the daily side of the business from a phone: writing estimates, scheduling calls, sending invoices, taking payments and answering customers. The only work that still wants a bigger screen is a short weekly review of who owes you and what the month looks like.
Plumbers aren't alone in moving the office into the truck. A survey reported by Plumber magazine found many home service pros are turning to new tools to cut down their admin work. The point isn't the tool. The point is doing the paperwork where the job happens, instead of rebuilding the day from memory later. See how the plumbing side of this works day to day.
How do I stop doing paperwork at night?
You stop doing paperwork at night by closing every job before you leave the driveway. Closing a job takes about five minutes and follows the same five steps every time:
- Record the work. What you found, what you did, labor time and every part used.
- Capture the approval. The signed estimate, or the customer's OK on a change made at the job.
- Send the invoice. Before you leave, while the customer is still home.
- Photograph the parts receipt. Name it with the customer and date.
- Mark it paid or unpaid. If paid, write down how: card, check or cash.
The invoice step matters most. An invoice sent at the door gets paid faster and gets fewer questions than one sent three days later.
Worked example: closing out three plumbing jobs
Here is one ordinary Tuesday for a solo plumber, using example prices only. Your rates and your area will differ, and sales tax rules vary by state, so the totals below leave tax out.
- Job 1, water heater flush and anode rod: $185 labor plus a $45 anode rod = $230. Paid by card at the door.
- Job 2, kitchen faucet replacement: $210 labor plus a $165 faucet = $375. Paid by check.
- Job 3, main line clearing: $295 labor. Invoice sent, due in 15 days. Unpaid.
At the end of the day you have three job records. Invoiced: $900. Collected: $605 ($230 card, $375 check). Still owed: $295. Parts receipts: two items totaling $210, each tagged to its job.
The check is $375 you need to deposit. The card payment is $230 you should see reach the business account. Job 3 goes on the list of who owes you.
How do you measure whether your paperwork is caught up?
You measure paperwork by checking three numbers at the end of each day, and each one has a target. If all three hit target, you're caught up.
- Balance check: Invoiced today = Collected today + Still owed from today. In the example, $900 = $605 + $295. If it doesn't balance, something was missed.
- Payment check: Collected today = Card + Check + Cash. In the example, $605 = $230 + $375 + $0. Each amount should match what you deposit or see arrive.
- Days to invoice: Invoice date minus job finish date. The target is 0 for every job.
Any job finished today with no invoice is an open job. Count them every evening. The goal is zero, and the check takes less time than reading this section.
How do I keep work and home separate as a solo plumber?
A solo plumber keeps work and home separate by giving the business its own bank account, its own customer line and its own hours. Each one stops the business from leaking into the evening.
A separate business account means every job payment and every supply house charge lands in one place. Mixing personal and business money makes it hard to tell what a job actually earned, and harder for whoever prepares your taxes.
A separate customer line means a customer with a dripping valve doesn't text your personal cell at 9 p.m. Set the hours you answer and stick to them. Real emergencies can go to a set emergency number at your emergency rate.
What should my day look like as an owner?
A solo plumbing owner's day works best with ten minutes of planning in the morning, jobs closed one at a time, and ten minutes of checking at the end. The rest of the day is plumbing.
- Morning (10 minutes): confirm the day's calls, check parts on the truck, answer overnight messages.
- Each job (5 minutes at the end): the five closing steps above.
- Evening (10 minutes): the three daily numbers, then deposit any checks.
- Once a week (30 minutes): follow up on anything past due and send estimates you promised.
Owners who run it this way usually find the same routine still works with a helper or a second truck. When the calls start outgrowing one person, read when a solo shop is ready for a second plumber.