Iowa Plumbing License Renewal: Deadlines, Fees and CE

The Master Plumber License (individual; master of record) (Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL) renews every 3 years, has a renewal fee of about $240 and requires 8 hours of continuing education. The PMSB Contractor License (Plumbing) + DIAL Contractor Registration (Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL) renews every 3 years, has a renewal fee of about $400 and requires a bond of $5,000 (verify with the board). Fees change, so check the official site for the exact amount.

Full rule details

Verified dataLast checked Oct 17, 2026, next review due July 2027

Informational: verify with the issuing board.

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Master Plumber License (individual; master of record)

Master · State license · Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL

Remind me before this expires

Renew on the official site (866) 280-1521

Renewal cycle: Every 3 years
Continuing education: 8 hours
Show CE rules
8 hours per 3-year term (2 plumbing code, 4 plumbing discipline, 2 safety); 16 hours if also holding a mechanical license (2 plumbing code, 2 mechanical code, 8 discipline, 4 safety). At least half in-person; board-approved course and instructor; hours self-reported, audit possible. Medical gas piping installers: no CE (certification + brazer cert required).
Deadline rule: Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July.

Show fees, grace period, bond and insurance

Grace period: 30-day grace period for any reason, including CEU completion (DIAL plumbing licensure page).

Fees, approximate

Renewal fee: About $240
Late fee: Show the details (amounts are approximate)
Per license: about $60 late fee if submitted after Aug 1 (31-60 days lapsed; may still work); about $100 if submitted after Sep 1 (61-365 days lapsed; not eligible to work). Late fees are excluded from the 30% multi-license discount.
Reinstatement: Show the details (amounts are approximate)
Expired more than 1 year: pay the full license fee (no multi-license discount) instead of a late fee, and submit current CEUs or pass the exam (exemption code 1008 / Basis for Licensure 'Examination'); not eligible to work while lapsed. Contractor licenses expired more than 1 year require a new application.

Fees change. Check the official site for the exact amount.

Why approximate?

Boards change fees often and some charge extra processing fees. We show a recent amount so you can plan.

Bond: Not required
Insurance: Not required
Reciprocity: Plumbing journeyperson and master licenses: reciprocity with South Dakota for exam-based licenses (2016 agreement). No reciprocity for the mechanical disciplines. Contractor licenses must be obtained in Iowa.

Notes

Journeyperson renewal $180. Medical gas installer $75. Phone (866) 280-1521.

HighLast checked Oct 17, 2026

Sources (6)

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PMSB Contractor License (Plumbing) + DIAL Contractor Registration

CL · State license · Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL

Remind me before this expires

Renew on the official site (866) 280-1521

Renewal cycle: Every 3 years
Continuing education: Not required
Deadline rule: Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July.

Show fees, grace period, bond and insurance

Grace period: 30-day grace period for any reason, including CEU completion (DIAL plumbing licensure page).

Fees, approximate

Renewal fee: About $400
Late fee: Show the details (amounts are approximate)
Per license: about $60 late fee if submitted after Aug 1 (31-60 days lapsed; may still work); about $100 if submitted after Sep 1 (61-365 days lapsed; not eligible to work). Late fees are excluded from the 30% multi-license discount.
Reinstatement: Show the details (amounts are approximate)
Expired more than 1 year: pay the full license fee (no multi-license discount) instead of a late fee, and submit current CEUs or pass the exam (exemption code 1008 / Basis for Licensure 'Examination'); not eligible to work while lapsed. Contractor licenses expired more than 1 year require a new application.

Fees change. Check the official site for the exact amount.

Why approximate?

Boards change fees often and some charge extra processing fees. We show a recent amount so you can plan.

Bond: Required: $5,000. Verify the amount with the board.
Insurance: Public liability insurance minimum $500,000; $5,000 license and permit surety bond; workers' comp certificate if employees; $25,000 out-of-state contractor bond if based outside Iowa; UI account number required (see HVAC entry for details).
Reciprocity: Plumbing journeyperson and master licenses: reciprocity with South Dakota for exam-based licenses (2016 agreement). No reciprocity for the mechanical disciplines. Contractor licenses must be obtained in Iowa.

Notes

Same single PMSB contractor license as the mechanical entry (one $250 + $150 registration renewal covers all disciplines listed). 30% discount applies only to license fees when renewing multiple licenses same day. Local jurisdictions may also require registration/permits.

HighLast checked Oct 17, 2026

Sources (7)

The hours, required topics, approved providers and reporting rules for each license are on the Iowa Plumbing continuing education page.

How to renew

1Check your Master Plumber License (individual; master of record) deadline: Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July.
2Complete 8 continuing education hours before renewing. 8 hours per 3-year term (2 plumbing code, 4 plumbing discipline, 2 safety); 16 hours if also holding a mechanical license (2 plumbing code, 2 mechanical code, 8 discipline, 4 safety). At least half in-person; board-approved course and instructor; hours self-reported, audit possible. Medical gas piping installers: no CE (certification + brazer cert required).
3Renew online at https://amanda-portal.idph.state.ia.us/adpereh/portal/#/commons/sign-in
4Pay the renewal fee on the official site. Expect about $240, but fees change.
5If you miss the deadline: Per license: about $60 late fee if submitted after Aug 1 (31-60 days lapsed; may still work); about $100 if submitted after Sep 1 (61-365 days lapsed; not eligible to work). Late fees are excluded from the 30% multi-license discount.
6Check your PMSB Contractor License (Plumbing) + DIAL Contractor Registration deadline: Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July.
7Confirm your bond and insurance meet the board requirements and are not expiring.
8Pay the renewal fee on the official site. Expect about $400, but fees change.

Iowa Plumbing renewal questions

Answers come from the records above. Informational: verify with the issuing board.

When does an Iowa plumbing license expire?

Master Plumber License (individual; master of record): renews every 3 years. Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July. PMSB Contractor License (Plumbing) + DIAL Contractor Registration: renews every 3 years. Licenses expire June 30 every 3 years (current period July 1, 2026 - June 30, 2029; next period July 1, 2029 - June 30, 2032). License remains valid through Aug 31; DIAL advises renewing in July. Check with Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL before you rely on it.

How many CE hours does an Iowa plumbing license need?

Master Plumber License (individual; master of record): 8 hours per renewal. PMSB Contractor License (Plumbing) + DIAL Contractor Registration: no CE required. Check with Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL before you rely on it.

Is there a grace period for an Iowa plumbing license?

30-day grace period for any reason, including CEU completion (DIAL plumbing licensure page). Check with Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL before you rely on it.

How much does it cost to renew an Iowa plumbing license?

Master Plumber License (individual; master of record): About $240. Fees change. Check the official site for the exact amount.

What happens if an Iowa plumbing license expires?

Per license: about $60 late fee if submitted after Aug 1 (31-60 days lapsed; may still work); about $100 if submitted after Sep 1 (61-365 days lapsed; not eligible to work). Late fees are excluded from the 30% multi-license discount. Fees change. Check the official site for the exact amount.

Does Iowa accept plumbing licenses from other states?

Plumbing journeyperson and master licenses: reciprocity with South Dakota for exam-based licenses (2016 agreement). No reciprocity for the mechanical disciplines. Contractor licenses must be obtained in Iowa. Check with Plumbing and Mechanical Systems Board (PMSB), Iowa DIAL before you rely on it.

Sources

Spot something out of date?

Informational only. Check it with the issuing board. Licensing rules, deadlines and CE requirements change, fee amounts are approximate, and this page can be out of date. It is not legal advice, and we are not affiliated with any state board. Read the disclaimer.

This information is here to help you plan, not to replace the board. Fee amounts are approximate and may be out of date. Deadlines and continuing education rules change too, sometimes without much notice. Always confirm with your licensing board and its official site before you rely on a date or an amount. This is not legal advice.

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