Plumbing Work Permit Requirements in Havre, MT
Havre is a small town of 9,362 residents in Montana that follows the 2021 IRC. Havre's building department is stricter than the standard IRC on plumbing work work, expect fewer exemptions and more situations that require a permit. You're looking at roughly $32 – $130 in permit fees, plan on about 1 week for approval, plus you can apply online.
By Joey, Founder · Last verified March 28, 2026 · How we research →
When you don’t need a Plumbing permit in Havre
Replacing a fixture is exempt.
When you need a Plumbing permit in Havre
Adding a fixture requires a permit.
Water heater work requires a permit.
Rerouting plumbing requires a permit.
What Makes Havre Different
Here's how Havre's plumbing work rules stack up against the standard IRC baseline that most of the country follows.
Stricter Than the IRC
Adding a fixture requires a permit.
Water heater work requires a permit.
Rerouting plumbing requires a permit.
1 rule match the IRC baseline, no surprises there.
Plumbing Work Permit Costs: Havre vs. Nearby
Havre comes in on the low side for Montana. You're looking at $32 – $260 here, compared to the state average of $53 – $200.
| City | Estimated Fee |
|---|---|
| Havre | $32 – $260 |
| Billings | $50 – $400 |
| Missoula | $52 – $420 |
| Great Falls | $45 – $360 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Havre permit costs →
Estimated Project Timeline in Havre
Here's a typical timeline for a plumbing work project in Havre, MT:
Timeline is based on Havre's typical about 2 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Estimated permit fees for Plumbing Work projects in Havre, MT range from $32 – $260. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Plumbing Work projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Havre can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Plumbing Work permits in Havre is about 1 week. More complex projects may take longer if plan review is required.
Learn More About Plumbing Work Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Plumbing Work Guide →