Classroom only.
Gas Equipment Installer day classes are held Tuesdays and Thursdays from 6 PM to 8:30 PM.
Bundle three gas courses and save $500!
Bundle price shown is after deposit. Read more and register for Gas Bundle here.
Upcoming Courses:
September 8 to October 29, 2026
includes Saturday Morning Lab – October 17
NH Plumbing Preparation Course
NH Plumbing Preparation Course offer complete coverage of all materials and the International Plumbing Code. We will prepare you with a full review of the IPC and provide you with an Exam study resource to take home and study after the course. PASS YOUR EXAM THE FIRST TIME!
Two day course from 9 AM to 3 PM
Gas Piping Installer’s License – Days
Gas Piping Installer day classes are held on Tuesdays and Wednesdays from 8 AM to 4 PM.
Classroom only.
Bundle three gas courses and save $500!
Bundle price shown is after deposit. Read more and register for Gas Bundle here.
Upcoming Courses
September 8 to 30, 2026
Gas Piping Installer’s License – Evenings
Gas Piping Installer evening classes are held on Mondays and Wednesdays from 6 PM to 8:30 PM, and one Saturday.
Classroom only.
Bundle three gas courses and save $500!
Bundle price shown is after deposit. Read more and register for Gas Bundle here.
Upcoming Courses:
September 9 to November 16, 2026
includes Saturday Morning Lab – October 3
What People are Saying about Granite State Trade School
If you are a MA plumber or gasfitter and you are interested in getting your NH license, I highly suggest this school. I came here and was very impressed from my first phone call to my last test.
- Thomas Denoi
Jim is hands down the best instructor. The facility is amazing. The quality of education you will not find anywhere else. This is the trade school.
- T. Harty
Great atmosphere upon arrival. All instructors are very knowledgeable in all categories offered and more! Overall amazing experience and will continue to go to GSTS!
- Jonah Lopez
I've been attending GSTS for a decade or so, and cannot imagine a better trade specific instructor. Jim is extremely knowledgable, shares the info with enthusiasm and relates the material through real world stories. The facility is full of hands on equipment, and his manner as an instructor (and gentleman) is an A+. 5 star
- Justin Auger
Take Your Career to the Next Level at Granite State Trade School
Certification is a validation of experience, knowledge, skills, abilities, behaviors, and competencies for a particular job or profession. Personal certification is a demonstration of an individual’s knowledge, skills, and abilities in a specific trade or field. Whatever your career objectives are, call Granite State Trade school and start taking your career to the next level.
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