Permitted & Code Work
The work your township requires a license for.
- Permit applications & inspections
- Philadelphia & International Plumbing Code
- Code-compliance corrections
The Highest License in the Trade
Master Plumber Services — From a Real Master Plumber
“Master plumber” isn't a marketing phrase — it's the highest level of plumbing licensure, earned through years in the field and a master-level examination. Penn Plumbing, Heating And Cooling Inc. is operated by a licensed master plumber with 50 years of experience, licensed in Philadelphia and 40+ townships.
50Years of experience
40+Townships licensed, plus Philadelphia
2Codes mastered: Philadelphia & International
1Master plumber — and he answers the phone
What the License Means
What a Master Plumber Actually Does for You
The master license is what allows a plumber to pull permits, design plumbing systems, certify code compliance, and take legal responsibility for the work. When your job needs a permit — gas piping, sewer and water services, major alterations — it needs a master plumber's license behind it. At Penn Plumbing there's no separation between the license on the wall and the person in your basement: the master plumber answers the phone, gives the estimate, and does the work.
Master-Level Work
Services That Call for a Master Plumber
Gas Piping
Where licensing matters most.
- Gas piping installation
- Gas appliance & fireplace hookups
- Leak-safe testing & inspection
Sewer & Water Services
Underground work, done to code.
- Sewer service installation & repair
- Water service replacement
- Smoke testing for sewer pipes
System Design & Layout
Plumbing engineered before it's installed.
- Full plumbing layout & design
- Commercial & multi-unit systems
- Old-to-new system transitions
All Pipe Materials
Fifty years across every era of construction.
- Cast iron & ductile iron
- Copper & PEX
- Galvanized replacement
Residential & Commercial
One license, every scale of job.
- Homes & rowhomes
- High-rises & apartment communities
- Restaurants & industrial sites
Running a business or a building? Our commercial plumbing services page covers grease traps, storm & sanitary systems, flushometers and the rest of our commercial work — or see the buildings we maintain on our projects page.
Good to Know
Master Plumbers, Explained
What is a master plumber?
A master plumber holds the highest level of plumbing licensure. It's the credential that allows a plumber to pull permits, design plumbing systems, take responsibility for code compliance, and supervise plumbing work. It typically requires years of documented field experience and passing a master-level examination.
Why does hiring a master plumber matter?
Permits, gas work, sewer and water services, and system design all carry real safety and code consequences. A master plumber is personally accountable for the work passing inspection — at Penn Plumbing, the master plumber who holds the license is the one who answers your call and does the work.
What's the difference between a master plumber and a journeyman?
A journeyman plumber is qualified to perform plumbing work, but generally works under the supervision of a master plumber. The master plumber holds the license that the permit is pulled under and carries the responsibility for the job meeting code.
Where are you licensed as a master plumber?
In the City of Philadelphia and more than 40 surrounding townships across Delaware, Chester, Bucks and Montgomery counties. See our Philadelphia and Havertown pages for local details.
Local Service. Lasting Comfort.