The essentials
- Licensing authorityMississippi State Board of Contractors (MSBOC) — official site
- Statewide?No — licensed by city or county
- Experience requiredNot published in a form we could verify — confirm with the board
- ExamTrade examination required for each plumbing classification, administered for MSBOC
- Renewal & CEAnnual — licenses are valid one year; renewal notices go out about 60 days before expiration and late renewal is allowed for up to 180 days, after which a new application is required
- Bond / insuranceProof of general liability insurance is required at application and renewal with MSBOC listed on the policy; commercial applicants must show at least $300,000 per occurrence and $600,000 aggregate (no stated minimum for residential)
- ReciprocityNone we could confirm
License classes in Mississippi
Because Mississippi licenses locally, the exact tier names differ between jurisdictions. These are the classes you will most often encounter:
- Mechanical (commercial major classification, Certificate of Responsibility) — test required
- Plumbing (commercial specialty under Mechanical) — sanitary/storm drainage, venting, water supply, septic, wells, pool piping, irrigation
- Process Piping (commercial specialty) — pressure piping systems
- Underground Utilities (commercial specialty) — water, sewer and gas pipeline installation
- Residential Plumbing — residential plumbing installation, maintenance and repair only
- Residential Mechanical — requires both the Residential HVAC and Residential Plumbing tests
Experience and training
We could not find a published hour requirement for Mississippi that we were willing to state as fact, so we have left it blank rather than guess. Ask Mississippi State Board of Contractors (MSBOC) for the current experience requirement in writing, and ask specifically whether classroom or trade-school hours can offset field hours — that substitution is where most of the variation between states lives.
One thing worth knowing regardless of state: the hours only count if they were logged properly at the time. Several boards require you to register as an apprentice before the clock starts, and hours worked while unregistered are simply gone. If you are early in the trade, get the registration paperwork right now rather than reconstructing it four years later.
The exam
Trade examination required for each plumbing classification, administered for MSBOC
Renewal and continuing education
Annual — licenses are valid one year; renewal notices go out about 60 days before expiration and late renewal is allowed for up to 180 days, after which a new application is required
Letting a license lapse is more expensive than it looks. Some states allow a short grace period with a penalty fee; others treat a lapsed license as forfeited and make you retest from scratch. Put the renewal date in your calendar with a 90-day warning, not a 7-day one.
Insurance and bonding
Proof of general liability insurance is required at application and renewal with MSBOC listed on the policy; commercial applicants must show at least $300,000 per occurrence and $600,000 aggregate (no stated minimum for residential)
Separately from whatever the state requires: Pipe Well requires every plumber on the network to carry current general liability insurance and to upload the certificate before the first appointment is sent.
Working across state lines
We could not confirm any published reciprocity agreement for Mississippi. That does not always mean there is none — several states evaluate out-of-state licenses case by case, or let you sit for the exam on the strength of a license held elsewhere. If you are relocating, call the board and ask specifically about endorsement or credential review rather than assuming you start over.
What plumbers actually get wrong here
MSBOC licenses contracting FIRMS by classification and does not issue an individual journeyman plumber license — a state license is only required above the dollar thresholds (commercial work over $50,000; residential new construction over $50,000; remodeling/additions over $10,000). Below those thresholds, cities and counties set their own plumber licensing and permit rules, so check the local building official. MSBOC does hold reciprocity agreements with some states, but they apply to the trade EXAM only — a full application and all other requirements still apply.
Once you are licensed: getting the work
A license gets you legal. It does not get you a full schedule. The usual next step is buying leads — $40 to $85 for a contact that three or four other shops bought at the same moment, which at a realistic 10–20% close rate works out to somewhere between $300 and $1,000 for every job you actually book, plus the unpaid hours spent chasing the ones that go nowhere.
Pipe Well works the other way round. We book appointments, not leads, and we handle everything up to the moment you knock on the door: the advertising, the phone call, qualifying the job, getting the address and access details, and agreeing a date and time window with the homeowner. What reaches your phone is a scheduled appointment — name, address, time window and what is wrong. You reply YES and it is yours.
What it costs
Nothing to join. No subscription, no per-lead charge. You do the job, you set your own price, and you collect payment from the customer directly. Then Pipe Well is paid 50% of the job after your documented materials come off the top:
(amount collected − documented materials) × 50%
| Collected | Materials | Net | Pipe Well | You keep |
|---|---|---|---|---|
| $400 | $40 | $360 | $180 | $220 |
| $1,200 | $520 | $680 | $340 | $860 |
| $2,800 | $800 | $2,000 | $1,000 | $1,800 |
| $8,500 | $3,200 | $5,300 | $2,650 | $5,850 |
Due within 48 hours of the customer paying you. If they never pay, you owe nothing. And look honestly at that last row — on a big repipe our share is a large number. If your book is already full of $8,500 jobs you are better off filling that capacity yourself. We are worth most to a shop with open capacity it cannot currently fill.
Apply free → Run your own numbersQuestions plumbers ask about licensing in Mississippi
Do you need a license to do plumbing work in Mississippi?
Mississippi does not issue a single statewide plumbing license. Licensing is handled by cities and counties, which means the requirement depends entirely on where the work is performed, and a card issued by one jurisdiction generally carries no weight in the next one. MSBOC licenses contracting FIRMS by classification and does not issue an individual journeyman plumber license — a state license is only required above the dollar thresholds (commercial work over $50,000; residential new construction over $50,000; remodeling/additions over $10,000). Below those thresholds, cities and counties set their own plumber licensing and permit rules, so check the local building official. MSBOC does hold reciprocity agreements with some states, but they apply to the trade EXAM only — a full application and all other requirements still apply.
Who issues the plumbing license in Mississippi?
Mississippi State Board of Contractors (MSBOC). The official site is https://www.msboc.us/.
What license classes exist in Mississippi?
Mechanical (commercial major classification, Certificate of Responsibility) — test required. Plumbing (commercial specialty under Mechanical) — sanitary/storm drainage, venting, water supply, septic, wells, pool piping, irrigation. Process Piping (commercial specialty) — pressure piping systems. Underground Utilities (commercial specialty) — water, sewer and gas pipeline installation. Residential Plumbing — residential plumbing installation, maintenance and repair only. Residential Mechanical — requires both the Residential HVAC and Residential Plumbing tests.
How many hours of experience do you need for a Mississippi plumbing license?
We could not verify a published hour requirement for Mississippi from an official source, so we are not going to guess at one. Check directly with Mississippi State Board of Contractors (MSBOC).
Who administers the Mississippi plumbing exam?
Trade examination required for each plumbing classification, administered for MSBOC
How often does a Mississippi plumbing license renew?
Annual — licenses are valid one year; renewal notices go out about 60 days before expiration and late renewal is allowed for up to 180 days, after which a new application is required
Can I get booked plumbing appointments in Mississippi once I am licensed?
Yes. Pipe Well Plumbing books customer appointments in Mississippi and texts them to licensed plumbers whose service radius covers the address. Joining is free — no subscription and no per-lead fee. Pipe Well is paid 50% of the job after your documented material costs are deducted, and only after the customer has paid you.
Booked appointments in Mississippi
Set your ZIP and a service radius of at least 30 miles and we will match appointments inside it. Free to join.
Join Free → Plumbing jobs in MississippiPlumbing license requirements in other states
Compiled from Mississippi State Board of Contractors (MSBOC) published materials, last reviewed July 2026. Where a figure could not be verified against a primary source we have said so rather than estimate it. Spotted something out of date? Email info@pipewellplumbing.com and we will correct it.