GSTS has partnered with the National Plumbing-Heating-Cooling Contractors- Educational Foundation to bring to bring students two options for their plumbing education: in-person classroom OR hybrid on-line and in person option (known as the e-Learning Mentoring Program).
Classroom
Granite State Trade School offers an in-house plumbing apprenticeship classroom option for all 1st year through 4th year plumbers. Each plumbing class year requires 150 hours of classroom training, and each class year begins in September. The Plumbing apprentice classes meet in the evenings from 6:00pm to 8:30pm two nights a week. The in-person traditional plumbing apprenticeship program offer a huge advantage of many face to face hours with licensed plumbing instructors who can answer specific questions and guide you through challenging course work.
We reserve the right to reschedule classes if required.
What's Covered
Introduction to Plumbing Trade
Fundamentals
Plumbing Math Concepts
Interpreting Basic Construction Drawings
Water Distribution System
Sizing of Water Distribution and DWV Systems
Interpreting Trade Drawings and Sketches
Venting Systems
Safety Concepts
Fixtures and Appliances
Fixture and Appliance Installation
Blueprints
Drawings and Plans
Fuel Gas Piping Systems
Advanced Math Concepts
Electrical Concepts
Service and Repair Techniques
System Sizing Using Blueprints
Protecting the Water Supply
Heating Systems
Pumps
Plumbing Code
Plumbing 101 – Evenings
Classes are held on Mondays and Wednesdays from 6 PM to 8:30 PM.
In-house classroom only.
Text book included.
Upcoming Classes:
September 14, 2026
Plumbing Courses are year long courses with two semesters per course to meet Apprenticeship Training requirements of 75 Hours per semester.
Courses only start in September of each calendar year.
Plumbing 201 – Evenings
Classes are held on Mondays and Wednesdays from 6 PM to 8:30 PM.
In-house classroom only.
Text book included.
Upcoming Classes:
Classes begin September 14, 2026
Plumbing Courses are year long courses with two semesters per course to meet Apprenticeship Training requirements of 75 Hours per semester.
Courses only start in September of each calendar year.
Plumbing 301 – Evenings
Classes are held on Tuesdays and Thursday from 6 PM to 8:30 PM.
In-house classroom only.
Text book included.
Upcoming Classes:
Classes begin September 8, 2026
Plumbing Courses are year long courses with two semesters per course to meet Apprenticeship Training requirements of 75 Hours per semester.
Courses only start in September of each calendar year.
Plumbing 401 – Evenings
Classes are held on Tuesdays and Thursdays from 6 PM to 8:30 PM.
In-house classroom only.
Text book included.
Upcoming Classes:
Classes begin September 8, 2026
Plumbing Courses are year long courses with two semesters per course to meet Apprenticeship Training requirements of 75 Hours per semester.
Courses only start in September of each calendar year.
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
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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