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FILE · PLUMBING x HATTIESBURG x MISSISSIPPIPermit StackSpecs LedgerCostTimelineChecklistViolationsFAQ
PLUMBING x HATTIESBURG x MISSISSIPPI

Plumbing contractors in Hattiesburg, Mississippi.

Plumbing contractors operating in Hattiesburg, Mississippi, must navigate a dual-layer regulatory environment. At the state level, the Mississippi State Board of Contractors (MSBOC) governs licensing for larger projects, ensuring contractors meet technical and financial standards. Failure to maintain proper state licensure can result in significant legal and financial penalties.

Locally, the City of Hattiesburg requires contractors to register their business and secure permits for all plumbing work. Compliance involves submitting plans, paying permit fees based on project valuation, and passing mandatory inspections. Contractors should prioritize maintaining current insurance and staying updated on the latest amendments to the International Plumbing Code to ensure all installations meet local safety standards.

State License
STATE MSBOCRequired for >$10k res / >$50k comm
Permit Issuer
Hattiesburg Building DeptCity Hall
Avg. Plan Review
5-10 DaysVaries by complexity
Typical Start-Up
RANGE $500 - $2,000Fees & Insurance
FILE · PLUMBING x HATTIESBURG x MISSISSIPPI
Compliance Dossier
Public
File
05 / 2026
State AuthorityMississippi State Board of Contractors
CountyForrest County
City AuthorityHattiesburg Building Department
Statute / CodeInternational Plumbing Code (IPC)
Federal Cert.N/A
ReciprocityVerify with MSBOC
Track these for me→Download leaf as PDF↓
FILE PLUMBINGLOCATION HATTIESBURG, MISSISSIPPITYPE COMPLIANCE GUIDE
VERIFIED 05 / 2026STATUS PUBLIC REFERENCE
What's specific to HattiesburgWhat this leaf carries beyond the Mississippi state file.
Local Registration
Hattiesburg requires a specific business registration separate from the state license.
IPC Adoption
Strict adherence to the International Plumbing Code is mandatory for all city inspections.
Project Valuation
Permit costs are strictly tied to the total valuation of the plumbing work performed.
§ 01 · Permit Stack

Three layers govern Plumbing work in Hattiesburg.

Always confirm local ordinances as they may change independently of state statutes.

State — Floor
MSBOC
Contractor LicenseInsurance
County — Overlay
Forrest County
Business Privilege TaxGeneral Compliance
City — Where you file
Hattiesburg Building Dept
Permit ApplicationLocal Business Registration

Read it bottom-up.

Always confirm local ordinances as they may change independently of state statutes.

This file exists to show what changes when the trade is Plumbing and the jurisdiction is Hattiesburg, Mississippi.

Source · State, county, and city issuing authoritiesLast verified · 05 / 2026
§ 02 · Specs Ledger

Every requirement, with a number on it.

Each row names the issuing authority, cost, timeline, citation, and status behind the requirement.

RequirementIssued byCostTimeCitationStatus
MSBOC Contractor LicenseRequired for large projects
MSBOC
Verify with agency
4-8 weeks
MS Code 31-3-1
REQUIRED
General LiabilityStandard industry requirement
Private Carrier
Varies
Immediate
Verify with agency
REQUIRED
Plumbing PermitRequired for all installations
Hattiesburg Building Dept
Valuation-based
1-3 days
City Ordinance
REQUIRED
Surety BondVerify if required for specific permits
Surety Company
Verify with agency
1-2 days
Verify with agency
REQUIRED
Backflow PreventionRequired for specific systems
State Dept of Health
Verify with agency
Varies
Verify with agency
REQUIRED
City Business LicenseLocal registration
Hattiesburg City Clerk
Verify with agency
1-5 days
City Ordinance
REQUIRED
§ 03 · Year-One Cost

What it costs to start Plumbing in Hattiesburg.

A practical floor for Hattiesburg, Mississippi. Verify each amount with the issuing authority.

Year-one ledger
Hattiesburg, Mississippi · Plumbing
State License FeeInitial applicationVerify with MSBOC
City Business RegistrationAnnual feeVerify with City Clerk
Plumbing Permit FeeBased on project costValuation-based
Inspection FeePer inspectionVerify with Building Dept
Insurance PremiumAnnual costVaries
Surety BondIf requiredVaries
Year-one floorVaries by project scale
Excludes tools, vehicle purchase, payroll, and marketing.
Note
Permit Fees

Fees are calculated based on the total valuation of labor and materials.

Note
Late Fees

Working without a permit may result in double fees or fines.

Note
Annual Renewals

Business licenses must be renewed annually with the City of Hattiesburg.

§ 04 · Path to First Job

From day zero to first inspection.

A practical path for Plumbing contractors in Hattiesburg.

1
Day 0
Project Planning
Contractor
2
Day 2
Permit Application
Hattiesburg Building Dept
3
Day 5
Permit Approval
Hattiesburg Building Dept
4
Day 6
Work Commencement
Contractor
5
Day 10
Rough-in Inspection
Hattiesburg Building Dept
6
Day 15
Final Inspection & Close
Hattiesburg Building Dept
§ 05 · Compliance Checklist

Check them off.

Each item names the issuing authority, cycle, and citation.

01
Verify State License
Check MSBOC status for project size.
LicensingLegalMSBOC
ContractorIssuing authority
02
Submit Plans
Provide detailed plumbing schematics.
PermitsPlanningIPC
ContractorIssuing authority
03
Pay Permit Fees
Submit payment to City Hall.
FeesFinanceCity of Hattiesburg
ContractorIssuing authority
04
Post Permit
Display permit at the job site.
ComplianceSiteCity of Hattiesburg
ContractorIssuing authority
05
Schedule Inspection
Request inspection via phone/portal.
InspectionProcessCity of Hattiesburg
ContractorIssuing authority
06
Final Sign-off
Receive certificate of completion.
CloseoutLegalCity of Hattiesburg
Building InspectorIssuing authority
§ 06 · Local Enforcement Data

Violations cited most in Hattiesburg.

When confirmed local data is unavailable, this section stays marked for verification.

Commonly cited
Verify with agency—

Unpermitted Work

Performing plumbing work without an active permit.

PenaltyStop-work order and fines
Commonly cited
Verify with agency—

Code Violations

Failure to follow IPC standards for venting or pipe sizing.

PenaltyCorrection notice and re-inspection fees
Commonly cited
Verify with agency—

Unlicensed Contracting

Operating without a valid state or local license.

PenaltyCivil penalties and potential legal action
§ 07 · Hattiesburg-specific FAQ

Questions Plumbing contractors ask about Hattiesburg.

Q01Do I need a state license for small residential plumbing jobs?+
A state license is generally required for residential projects exceeding $10,000, but you should verify specific local registration requirements with the Hattiesburg Building Department.
LicensingResidentialSource · MSBOC
Q02Where do I apply for a plumbing permit in Hattiesburg?+
Permits are issued by the City of Hattiesburg Building Department located at City Hall.
PermitsHattiesburgSource · City of Hattiesburg Building Department
Q03Which plumbing code does Hattiesburg follow?+
The City of Hattiesburg enforces the International Plumbing Code (IPC) as adopted by the State of Mississippi.
CodeComplianceSource · Mississippi State Department of Health
Q04Is a bond required to work in Hattiesburg?+
Verify with the City of Hattiesburg Building Department regarding specific bonding requirements for plumbing contractors.
BondingRequirementsSource · City of Hattiesburg
Q05How do I schedule an inspection?+
Inspections must be requested through the Hattiesburg Building Department once the work is ready for review.
InspectionProcessSource · City of Hattiesburg Building Department
Q06Are there reciprocity agreements for out-of-state plumbers?+
Mississippi has limited reciprocity agreements; you must contact the Mississippi State Board of Contractors to determine eligibility.
ReciprocityLicensingSource · MSBOC
§ 08 · Related

Adjacent files.

Other trades — Hattiesburg

Electrical Contractors→HVAC Contractors→

State Resources

MSBOC Portal→MS Dept of Health→

These are the documents Iris tracks for you.

Store licenses, permits, policies, and renewal dates in one place.

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