PLUMBING BUSINESS LAUNCH CHECKLIST
From https://www.brix.so/start/plumbing (updated 2026-10-24)
Print it, tick it off, keep it in the truck.

DAY 1

[ ] Confirm the license level that lets you run a plumbing company in your state or city (often master or contractor)
[ ] Register the business, get a free EIN, and file any contractor registration the state or city requires
[ ] Buy general liability at or above your license minimum, plus tools coverage and any required bond
[ ] Put the company name and license number on the van if your board requires it
[ ] Open supply-house accounts for fittings, fixtures and water heaters
[ ] Set your service call fee, after-hours dispatch fee and minimum charge
[ ] Get a business phone line that rings through at night, because burst pipes don't wait for morning
[ ] Learn the permit process for water heaters, sewer work and repipes in the cities you'll serve

MONTH 3

[ ] Flat-price your top ten jobs (drains, toilets, faucets, water heaters) from real times
[ ] Take before-and-after photos on every job for your Google profile and warranty records
[ ] Track parts margin and stop absorbing supply-house runs
[ ] Ask every customer for a review the same day
[ ] Text back every missed call within minutes
[ ] Book your continuing education hours if your license renews this year
[ ] Build relationships with property managers, realtors and home inspectors

YEAR 1

[ ] Hire an apprentice or helper only after workers' comp is in place and your board's supervision rules are clear
[ ] Add drain camera, jetting or water treatment work if your market pays for it
[ ] Offer a yearly plumbing inspection or water heater flush to past customers
[ ] Review your insurance limits against the size of jobs you now bid
[ ] Pay quarterly estimated taxes on time
[ ] Raise prices for the next year with notice to repeat customers

Plumbing licenses are issued by states and, in many places, cities. Check
your state plumbing board or local buildings department. This checklist is
not legal or tax advice.

Questions? Call or text (518) 588-1122, or book 15 minutes:
https://cal.com/ethanharris/15min