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Start your Gas Technician 3 training today. Master the trade, prep for the TSSA exam, and graduate in 12 weeks.
12 Week
Courses
Small
Class Sizes
Majority Hands-on Training
✅ Age 18+
✅ Ontario secondary school diploma or equivalent
✅ Valid SIN (for enrollment verification)
✅ Tools provided for use, or kits available for purchase
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Gas Technician 3 training that meets strict provincial standards.
*$2,995 for STC Students & Alumni.
Join a massive alumni network working across the province.
Build the foundation for a highly lucrative, in-demand career.
Gas Tech 3 Program Overview
Every gas technician in Ontario starts here. The Gas Technician 3 license is the first rung on the ladder toward building a successful career in the gas trade, and the training you complete now helps set up everything that follows.
A G3 certification is the mandatory starting point required by Ontario gas technician regulations. This pathway provides students with the legal foundation they need to begin working under the supervision of a licensed G2 or G1 technician while building the skills, confidence, and technical knowledge to keep moving forward in the trade.
At Skilled Trades College, the TSSA Gas Technician 3 course is designed for students who are ready to do more than sit through basic classroom theory. With practical, career-focused training, students can begin building real trade knowledge that supports their next step, whether they’re interested in HVAC, plumbing, gas fitting, or continuing on to future G2 training.
You don’t need prior experience, just a willingness to learn a stable, skilled trade! Enroll in one of the best Gas Technician 3 training programs in Ontario today.
Course Outline
Safety Training & Workplace Awareness
Fasteners, Hand Tools, Power Tools & Testing Instruments
Properties & Safe Handling of Natural Gas & Propane
Gas Installation Codes, Acts & Regulations
Intro to Electricity & Electrical Fundamentals
Technical Manuals, Specifications, Schematics & Drawings
Intro to Piping & Tubing Systems
Intro to Gas Appliances & Equipment
Introduction to Canadain Electrical Safety Code
12 Weeks
In Person, Evening & Weekend Classes
Mon & Wed: 6-9 p.m. or Saturday: 8 a.m. - 4 p.m.
Vaughan Campus
September 28, 2026
The theory and practical exams are regulated by the Technical Standards and Safety Authority (TSSA) and will be administered by Skilled Trades College upon course completion. Students must successfully complete program requirements to be eligible to write the final exam.
$3,900, all inclusive (non-alumni rate)
$2,995 (alumni rate)
Prices are subject to change
Career Opportunities
$100K+
Gas Technicians can make upward of +$100k per year.
Residential Gas Service Technician
HVAC / Gas Installer
Maintenance Technician
Gas Contractor (with further licensing)
12 Week Courses
Students will receive more individualized attention and interact more with instructors and more flexibility to use different instructional approaches.
Small Class Size
Small size classes can provide you with individualized attention and personalized feedback on your performance.
Hands-on Training
Hands-on learning allows students to learn through experience and lets them immerse themselves in a learning environment.
Career Outlook as a Gas Technician in Ontario
Gas technician 3 training can open the door to a wide range of work across Ontario. Homes, businesses, utilities, construction sites, and service companies all depend on skilled tradespeople who understand how gas systems work and how to keep them running safely.
As Ontario continues to grow, build, and expand natural gas access in rural communities, gas tech 3 professionals have a strong foundation for opportunities in heating, ventilation and air conditioning, appliance service, plumbing, mechanical work, and the broader gas service industry.
Choose Skilled Trades College for practical training that teaches aspiring gas techs the tools, technical standards, and safety mindset used across the gas service industry.
For students completing Gas Technician 3 training at STC, additional support can be especially valuable as you begin building experience, exploring related trades, and planning your next step toward long-term career growth.
Getting your gas technician 3 license isn’t just about passing a test, it’s about launching a career with real longevity. At Skilled Trades College, our Gas Technician 3 training bridges the gap between classroom theory and practical, on-the-job skills employers look for.
With small class sizes and direct mentorship from industry veterans, this gas technician course ensures you’re fully prepared for both the TSSA exam and your first day on the job. If you’re ready to stop thinking about a career in the trades and start building one, we’re ready to help you make it happen!
A G3 gas license is the entry-level certification for working with natural gas and propane appliances in Ontario. You earn it after completing approved TSSA training and passing the required provincial qualification exam.
With a G3 license, you can work under the direct supervision of a G2 or G1 licensed technician on gas-fired equipment like furnaces, water heaters, fireplaces, stoves, pool heaters, dryers, and more.
Think of it as your license to start. Your gas 3 license opens the door, and each level after it raises what you can do and what you can earn.
They’re the three levels of gas licensing. G3 is entry-level (work under supervision). G2 lets you work independently on appliances up to 400,000 BTUh. G1 removes the size limit. You start at G3 and upgrade with training and experience.
Yes. A G3 license can be a valuable asset for students interested in other trades, especially HVAC, plumbing, appliance service, and mechanical work. Because gas systems often connect to heating equipment, appliances, piping, and building systems, Gas Technician 3 training can help students build a stronger technical foundation and open the door to additional training pathways at Skilled Trades College.
While an Ontario Secondary School Diploma (OSSD) or equivalent is standard, mature students (ages 18+) who do not have a diploma can often take a qualifying entrance assessment. Contact our admissions team to discuss pathways for mature students.
Tuition is $3,900, making it one of the most affordable G3 courses in Ontario. This includes course modules, tuition, on-site tool use, codebooks, and exam fees. For alumni or current students, tuition is discounted to $2,995.
Absolutely. There are still plenty of great provincial grants, private funding options, and bursaries available that can help cover tuition. However, because our 12-week program is designed to get you job-ready fast, it’s too short to qualify for OSAP. For those seeking funding support, please schedule an appointment with your local program advisor.
Complete your classroom and practical training in just 12 weeks at Skilled Trades College. Because our program is streamlined and career-focused, it’s specifically designed to set you up for success so you can challenge the TSSA certification exam and enter the workforce fast.
To earn your G3 gas license, you must achieve a minimum score of 75% on both the theoretical and practical components of the TSSA-administered examination. Our curriculum is specifically engineered to prepare you to meet and exceed this standard.
Yes. We offer flexible scheduling options, specifically evening and weekend classes, to accommodate busy schedules, allowing you to maintain employment while training for the trade.
