Plumber contractor software for the 11 p.m. callout
Plumber contractor software for service work: what the technician records in a flooded basement at night is what the office prices, bills and can still prove eighteen months later.
plumbing contractor · Refrigeration · Boiler

Service plumbing is not one long job with a schedule. It is forty short ones a week, half of them booked the same morning, some of them at night — and every one of them leaves a record that either exists or does not. The estimate nobody wrote down. The part that came off the truck and never reached a bill. The photo of the corroded fitting that would have ended the argument.
At night, the record is the only thing you get
The technician opens the same application on their phone, not a stripped-down second app. Assignments show date, job and address with buttons for the route and for starting the clock. Photos, a note and a signature taken with a finger go onto the job where the office can see them the next morning.
Tap targets are built larger than the usual 44 pixels, because there is a glove in between. And while the application is open, hours and job messages can still be written with no signal in a basement; they go out when there is one again.
The technician records, the office prices
On the phone a job's line items come from a reading view that carries no amounts at all. That is deliberate, and it is decided in the database rather than in the interface: the technician sees assigned jobs and released folders, and nothing about margin.
Pricing happens in the office against your own price book — material with cost, markup and sell price, services assembled from labor minutes, material, equipment and subcontracting. A price typed once into a document goes back into the price book with one click, which is how a callout that has now happened eleven times stops being priced from memory on the twelfth.
Residential or commercial changes what you may charge
The same repair is taxed differently depending on the building. In Texas, labor to repair, remodel or restore residential real property is not taxable — family dwellings, apartments, condominiums, nursing homes — while the identical work on an office or a warehouse is taxable on the full amount charged. Hotels and rentals under thirty days fall outside the residential side. The details, including the five percent rule that catches mixed contracts, are in residential labor is not taxed, commercial labor is.
Zirko suggests no rate for any of it. A US business enters its own rates, each with up to four components for State, County and City, and can issue an invoice with no tax line at all — a distinct state, not zero percent. Which jobs sit where is your call and your accountant's, not your software's.
Getting paid is a calendar problem
Service work turns into collection work faster than new construction does, and the deadlines are state law. California counts ninety days from completion for a mechanics lien; Texas counts to the fifteenth day of a month; Florida wants a notice to owner within forty-five days of starting. One calendar built on one number is wrong in three states out of four — see four states, four calendars.
What helps here is dull: an invoice that goes out the same week, a document that cannot be quietly edited afterwards, and a reminder rule with a deadline you set and a text you wrote. Every automatic message is logged with its trigger, its recipient and its moment, and nothing can fire twice for the same case.
Your subs need the same discipline. Whether the helper who rode along on Saturday is a contractor or an employee is decided by tests that have nothing to do with what the invoice says — that line is drawn in contractor or employee.
What it does not do
There is no recurring maintenance generator: annual service jobs are not created for you. There is no dispatch board that optimizes routes, forecasts capacity or puts your pros on a map. And nothing about a sales tax rate, a license or a lien deadline is decided here — those are yours, and this is the place they are written down.
Frequently asked questions
Is plumbing labor taxable in Texas?
It depends on the building. In Texas, labor to repair, remodel or restore residential real property is not taxable — family dwellings, apartments, condominiums, nursing homes — while the identical work on an office or a warehouse is taxable on the full amount charged. Hotels and rentals under thirty days fall outside the residential side, and a five percent rule catches mixed contracts.
Does Zirko work out my mechanics lien deadline?
No. Nothing about a sales tax rate, a license or a lien deadline is decided in Zirko — those are yours, and this is the place they are written down. The deadlines are state law and they do not share a calendar: California counts ninety days from completion, Texas counts to the fifteenth day of a month, and Florida wants a notice to owner within forty-five days of starting.
Can technicians see prices on the phone?
No. On the phone a job's line items come from a reading view that carries no amounts at all, and that is decided in the database rather than in the interface: the technician sees assigned jobs and released folders, and nothing about margin. Pricing happens in the office against your own price book.
Does the app work in a basement with no signal?
While the application is open, hours and job messages can still be written with no signal, and they go out when there is one again. It is the same application as in the office, not a stripped-down second app: assignments show date, job and address with buttons for the route and for starting the clock, and tap targets are built larger than the usual 44 pixels because there is a glove in between.
Will Zirko create my annual service jobs?
No. There is no recurring maintenance generator: annual service jobs are not created for you. There is also no dispatch board that optimizes routes, forecasts capacity or puts your pros on a map.
Be there at launch
Zirko launches late 2026. Sign up and we'll let you know the moment it goes live — one email, nothing more.
Available from late 2026