Permit Fee Estimator
Estimate your plumbing permit fee before calling a plumber — so you know what to expect on the invoice and what work legally requires a permit.
How permit fees are calculated
- National base range. Each job type has a nationally typical fee range derived from city development services fee schedules. Water heater replacements typically run $50–200; whole-house repiping can reach $300–1,200 before state modifiers.
- State cost modifier. Permit fees correlate with cost of government — California (2.8×), Hawaii (2.5×), and New York (2.4×) have the highest permit bureaucracy costs; Alabama, Mississippi, and Wyoming run below 1× the national baseline.
- What the modifier reflects. The modifier blends plan-check staffing costs, prevailing wage requirements for inspectors, and local government budget data from the NASBO State Expenditure Report. It is not an exact fee — verify with your city's building department.
Who pulls the permit?
In virtually all jurisdictions, the licensed plumber pulls the permit — not the homeowner. The permit fee is then included in the contractor's invoice. Ask to see the permit number before work begins; it guarantees the work will be inspected and signed off. Unpermitted plumbing work can void your homeowner's insurance for related claims and complicate sale of the property.
Jobs that typically don't require a permit
Like-for-like replacements of faucets, showerheads, and garbage disposals are exempt in most jurisdictions because they involve no new pipe runs or structural changes. Drain cleaning and hydro jetting are always exempt. Toilet replacements fall in the middle — exempt in most cities, required in some (notably Chicago and NYC). When in doubt, call your city's building department; the call is free.
Full data methodology: methodology page.