Homeowner guide · Permits
Plumbing permits in Tredyffrin and Easttown: who can legally do the work
Pennsylvania has no statewide plumbing license, so your township’s rules decide who may work on your plumbing and when a permit is needed. In Tredyffrin, drain, sewer, waste, and vent work requires a master plumber or a journeyman under one. In Easttown, anyone opening a building sewer needs a written township permit first.
Key takeaways
The short version
- Pennsylvania does not license plumbers statewide; townships set the rules.
- Tredyffrin: contractors register with the township, and a master plumber (or journeyman under one) must prove that status before a plumbing permit is issued.
- Tredyffrin: a gas line to a generator needs a plumbing permit plus the electrical permit.
- Easttown: a written permit is required before anyone opens or alters a building sewer.
- Emergency repairs in Tredyffrin can start before the permit.
Why permits work differently in Pennsylvania
In many states, a plumber carries a state license and that license follows them from town to town. Pennsylvania does not issue a statewide plumbing license. Licensing, registration, and permits are handled at the local level, which means the rules that protect your home are the ones your township writes.
For homeowners in Tredyffrin and Easttown, that has two practical effects. First, the question “is this plumber licensed?” is really “is this plumber qualified and registered under my township’s rules?” Second, because Paoli, Berwyn, and Devon addresses fall in both townships, two neighbors on the same ZIP code can face different requirements.
Your property tax bill or deed names your township. If you are not sure, that is the first thing to check before any permitted plumbing job.
What Tredyffrin Township requires
Tredyffrin’s code is specific about who may work on the parts of your plumbing that carry waste. The township’s Building and Construction Permits page is the official source; here is what the rules mean in practice.
Contractor registration
Contractors must register with the township before doing any work that requires a construction permit. Registration can be revoked if a contractor fails to keep insurance in force or starts permitted work without first obtaining the permit.
Master plumber requirement
Only a master plumber, or a journeyman plumber working under a master plumber’s direct supervision, may be hired to alter, repair, or connect to a drain, sewer line, waste line, or vent. Before a plumbing permit is issued, the plumber must prove that master or journeyman status.
Gas lines for generators
A natural gas connection for a standby generator needs a plumbing permit in addition to the electrical permit. That surprises many homeowners, who assume the generator is purely an electrical job.
The emergency exception
The rule against starting work before a permit has an exception for genuine emergencies. A burst pipe or failed sewer line can be dealt with right away, and the permit handled properly afterward.
The code behind it
Tredyffrin builds on the 2018 International Plumbing Code with local amendments. Work has to meet code whether or not a permit is required for that particular job.
Permits and Inspections can be reached at 610-644-1400, press 4, or permits@tredyffrin.org, at the township building at 1100 DuPortail Road.
What Easttown Township requires
Easttown’s rules focus on its sewer system, which is unusual. Sewage flows by gravity into thirteen pumping stations and is pumped two or even three times before it leaves the township, traveling through Tredyffrin’s mains to the Valley Forge Sewer Authority in Phoenixville or the Trout Run plant in Upper Merion. You can reach the township through easttown.org or at 610-687-3000.
Building sewer permits
No one may uncover, make connections with or openings into, use, alter, or disturb a building sewer without first obtaining a written permit from the township. In practice, that covers most sewer lateral repairs and replacements.
Grease and hot liquids
Easttown prohibits sewer discharges containing more than 100 parts per million of fat, oil, or grease, and any liquid hotter than 140°F. For homeowners, the simple rule is that cooled grease goes in the trash, never down the drain.
Septic to sewer conversions
When a home on a septic system connects to public sewer, the old septic tank has to be properly decommissioned at the owner’s expense.
Paoli, Berwyn, and Devon: check your side of the line
Three T/E villages straddle the township line. Paoli (19301), Berwyn (19312), and Devon (19333) all include homes in Tredyffrin and homes in Easttown. That means the ZIP code on your mail does not tell you which permit rules apply to your plumbing.
- Paoli: centered on Paoli station, split across both townships
- Berwyn: split across both townships, including the Daylesford area
- Devon: along Lancaster Avenue in both townships, home to Easttown’s offices on Beaumont Road
- Chesterbrook and Strafford: in Tredyffrin
Before any sewer, drain, or gas work, confirm the township from your tax bill. We check it from your address as a matter of course.
Which common jobs may need a permit
This table summarizes what we know applies. When a job is not clearly covered, the safe move is to ask the township before work starts.
| Job | Tredyffrin | Easttown |
|---|---|---|
| Sewer lateral repair or replacement | Master plumber or journeyman under one, with permit | Written building sewer permit before the sewer is opened |
| Drain, waste, or vent changes (remodels) | Master plumber or journeyman under one, with permit | Confirm with the township |
| Gas line to a standby generator | Plumbing permit plus electrical permit | Confirm with the township |
| Septic to public sewer connection | Confirm with the township | Permit, plus decommissioning the old tank |
| Emergency repair of a burst pipe | Work may start first; permit handled after | Confirm with the township |
| Faucet cartridge, flapper, or aerator | Generally minor repair work; confirm if unsure | Generally minor repair work; confirm if unsure |
State registration: the HIC number
While Pennsylvania does not license plumbers, its Home Improvement Consumer Protection Act requires most home improvement contractors to register with the state Attorney General’s office. Registered contractors receive a registration number that begins with PA, and it should appear on their contracts and advertising.
A registration number is not the same as a trade license. It tells you the contractor is registered with the state, not that they meet your township’s master plumber requirement. You want both answers. Our own registration is PA HIC PA120406.
Eight questions to ask any plumber before work starts
- Are you a master plumber, or working under one? What is their name?
- Are you registered with Tredyffrin or Easttown Township?
- Can you show a current certificate of insurance?
- What is your Pennsylvania HIC registration number?
- Does this job need a permit, and who pulls it?
- Is the quote flat or hourly, and is there a service call fee?
- What happens if the job turns out bigger than expected?
- Will the work be inspected, and when?
A plumber who answers all eight without hesitating is one worth keeping. Unpermitted drain or sewer work can cause problems at resale, when a buyer’s inspector or the township asks for records.
Why permits matter when you sell
Permits create a record. When you sell, buyers and their inspectors may ask when major plumbing work was done and whether it was permitted. Records for a new sewer lateral, a relocated bathroom drain, or a generator gas line answer those questions quickly. Missing records can mean delays, negotiation, or work being opened up for inspection.
Keep copies of permits, final inspections, and invoices with your home documents. They are worth more than the paper they are printed on on the day you list the house.
When to call
Not sure whether your job needs a permit?
Tell us what you are planning and your address. We will confirm your township and tell you what applies before any work starts. Call (610) 788-0042.
Frequently asked questions
Plumbing permit questions in Tredyffrin and Easttown
Answers by John, Tredyffrin Easttown Plumber.
Does Pennsylvania require a plumbing license?
No, not statewide. Pennsylvania leaves plumbing licensing and registration to local governments, so your township’s rules apply.
Who can do drain and sewer work in Tredyffrin?
Only a master plumber, or a journeyman working under one, who proves that status before the township issues a plumbing permit.
Do I need a permit to repair my sewer line in Easttown?
Yes. Easttown requires a written permit before anyone uncovers, opens, alters, or connects to a building sewer.
Does a generator gas line need a plumbing permit in Tredyffrin?
Yes. A natural gas connection for a generator needs a plumbing permit in addition to the electrical permit.
Can emergency repairs start before a permit?
In Tredyffrin, yes. Work may begin in a genuine emergency, with the permit handled properly afterward.
What is a PA HIC number?
A registration number issued under Pennsylvania’s Home Improvement Consumer Protection Act. It shows a contractor is registered with the state, which is different from meeting a township’s master plumber requirement.
Our service area
Plumbing across Tredyffrin Township, PA
Tredyffrin Easttown Plumber serves every neighborhood in Tredyffrin Township, including Wayne, Strafford, Chesterbrook, Paoli, Berwyn, Devon, Daylesford, and Howellville, plus neighboring Easttown Township. Our office is at 217 Conestoga Rd, Suite 10, Wayne, PA 19087.