Do I Need a Plumbing Permit in Anne Arundel County?

Do I Need a Permit for Plumbing Work in Anne Arundel County? | Fitchet Plumbing
Code Compliance & Permits

Do I Need a Permit for Plumbing Work in Anne Arundel County, MD?

Published: September 2026 Fitchet Plumbing, Severna Park MD 21146 MD License #70218

In Anne Arundel County, MD, permits are required for water heater replacement, sewer line repair or replacement, whole-house repiping, gas line installation, and backflow preventer installation. Minor repairs — toilet, faucet, drain cleaning, garbage disposal replacement, like-for-like fixture replacement — do not require permits. Fitchet Plumbing pulls all required permits on every applicable job in Severna Park and throughout Anne Arundel County.

What Plumbing Work Requires a Permit in Anne Arundel County?

Anne Arundel County’s plumbing permit requirements follow the Maryland Plumbing Code with county-specific applications. The permit requirement applies to work that constitutes a significant change to the plumbing system — new installations, replacements of major system components, and structural changes to drain and supply systems.

🔥 Water Heater Replacement — Permit Required

This surprises most homeowners. A water heater is a major system component, and its replacement involves the gas line connection (on gas units), venting, the T&P valve, expansion tank, and shutoff valves — all of which have safety implications. Anne Arundel County requires a permit for water heater replacement and an inspection to verify correct installation. An improperly installed expansion tank or T&P valve is a serious safety hazard, not just a paperwork issue.

The inspection typically takes only 15–20 minutes. We schedule and coordinate the inspection as part of every water heater replacement.

🏗️ Sewer Line Repair or Replacement — Permit Required

Both trenchless pipe lining and traditional excavation require permits in Anne Arundel County. The permit process includes inspection of the completed work before final backfill or restoration of the pipe access. For trenchless lining, inspection occurs while cleanouts remain open for camera re-verification; for excavation, it occurs before backfilling. We coordinate both.

🚰 Whole-House Repiping — Permit Required

A significant change to the water supply system requires a permit and inspection in Anne Arundel County. The inspection verifies approved materials, proper connection methods, and full compliance with current Maryland Plumbing Code.

⚡ Gas Line Installation — Permit Required

New gas line runs, significant extensions to existing lines, and new appliance connections all require permits in Anne Arundel County. Gas line work also requires a licensed Maryland gas fitter — a separate certification from a standard plumbing licence.

🛡️ Backflow Preventer Installation — Permit Required

New backflow preventer installations require permits. Annual testing of existing devices does not — but the test must be performed by a certified tester and results filed with the Anne Arundel County Department of Public Works.

What Typically Does NOT Require a Permit:

  • Like-for-like toilet replacement (same drain configuration)
  • Faucet replacement at an existing location
  • Drain cleaning (snake or hydro jetting)
  • Garbage disposal replacement
  • Water softener installation (in most cases — adding to existing supply connections without moving pipes)
  • Fixture repairs (flapper, fill valve, cartridge, aerator)
  • Hose bib replacement at an existing location

When in doubt, call us — we know what Anne Arundel County requires for specific work types and will tell you honestly whether a permit is needed.

The Three Real Consequences of Skipping a Required Permit

General discussions of permit requirements often focus solely on code compliance — “it’s required by law.” That’s true, but the practical consequences for Severna Park homeowners are far more specific and consequential:

Consequence 1 — Homeowner’s Insurance Claim Denial

If a water heater that was replaced without a permit fails and causes water damage in your home, your insurance company may deny the claim on the grounds that the installation was unpermitted. This is not a theoretical risk — it’s a documented outcome in Maryland homeowner’s insurance disputes.

The language in most homeowner policies requires that covered work be performed in accordance with applicable codes and permit requirements. For a Severna Park home where a water heater failure could cause $20,000–$50,000 in water damage to finished basement space, the cost of the permit and inspection ($75–$150 typically) is negligible protection.

Consequence 2 — Home Sale Complications

When a Severna Park home is sold, the buyer’s home inspector and real estate attorney review property records accessible in Anne Arundel County permit databases. A home inspector who identifies an unpermitted water heater, sewer line repair, or repiping project will flag it in the inspection report.

The outcomes from there are typically: the seller provides a price concession reflecting the cost of retroactive permitting, the seller agrees to permit the work before closing (which may require opening walls or trenches for inspection access), or the buyer walks. In Severna Park’s competitive market, none of these outcomes are desirable.

Consequence 3 — Liability for Incorrect Installation

The permit inspection process exists because the work matters. An inspector who finds an incorrectly installed expansion tank, a T&P valve that doesn’t discharge properly, or a gas line connection that leaks at low pressure is catching a hazard before it causes damage or injury.

A contractor who skips permits skips this vital safety check. If something goes wrong later, the homeowner bears the consequences without documentation that the installation was professionally verified.

What Fitchet Plumbing Does — Permits Are Included

Every permit required for work we perform in Anne Arundel County is pulled before work begins. The permit fee is included in our quoted flat price — it never appears on an invoice as a separate line item or an unexpected surprise. We apply for the permit, coordinate the inspection, meet the county inspector on-site, and provide you with documentation of the passed inspection.

We do not offer to skip permits to speed up a project or reduce cost. If a homeowner asks to proceed without a required permit, we explain why we are not willing to cut corners on their insurance coverage and property resale documentation.

If previous work at your property was done without a required permit and you’re now facing a pending home sale or disclosure situation, call us. Retroactive permitting is possible in some cases and we can help you navigate the process.

Questions About a Project in Severna Park?

We pull all permits, manage all inspections, and guarantee 100% code compliance.

Call (667) 644-3080

Frequently Asked Questions

Does water heater replacement require a permit in Anne Arundel County?

Yes. Water heater replacement requires a permit in Anne Arundel County. The inspection verifies correct installation of the unit, expansion tank, T&P valve, and connections. Fitchet Plumbing pulls the required permit on every water heater installation — included in the quoted flat price.

Does drain cleaning require a permit in Anne Arundel County?

No. Drain cleaning — whether by snake or hydro jetting — does not require a permit in Anne Arundel County. Structural sewer line work (trenchless lining or excavation and replacement) does require a permit.

Does installing a water softener require a permit?

In most residential cases, whole-home water softener installation — connecting to existing supply pipe runs without moving or adding pipes — does not require a permit in Anne Arundel County. If the installation involves new pipe runs or changes to the existing supply system, the work may require a permit. We confirm requirements before beginning work.

What happens if plumbing work was done without a permit?

Unpermitted work on systems requiring permits can void homeowner’s insurance coverage for related failures and creates a disclosure obligation and potential price concession during a home sale. Anne Arundel County may require removal or reinstallation if discovered. Retroactive permitting is possible in some situations — call us to understand your options.

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