ASSEMBLE PATH · ONTARIO TRADE 428A
Construction Boilermaker
A Construction Boilermaker builds, installs, erects, tests, maintains and repairs all types of boilers, tanks and pressure vessels, and performs all types of structural and plate work on dust, air, gas, steam, oil, water and other liquid-tight pressure vessels. Specifically, a Construction Boilermaker:
RED SEAL TRADENON-COMPULSORY IN ONTARIOCONSTRUCTION / BUILDING SYSTEMS

Original generated editorial image • not a real employee
WHY THE WORK MATTERS
Heavy steel, pressure integrity and precise assembly come together in critical industrial systems.
Construction boilermakers fabricate, rig, erect, weld, test, maintain and repair boilers, tanks, pressure vessels and heavy plate systems.
6,600 hoursgeneral apprenticeship duration
$96,420estimated median at 2,000 paid hours
Red Seal tradenationally recognized standard
EXPLORE IN ORDER
Four questions. One clearer next step.
WHERE THE WORK LIVES
Real settings for real work
power-generation facilitiesrefineries and chemical plantssteel mills and heavy industryshipyards and fabrication shopsindustrial shutdown and maintenance projects
EVIDENCE BASE
Sources & verification
Regulated, numerical and time-sensitive claims link to the authority used. Accessed and reviewed August 25, 2026.
Skilled Trades Ontario — Construction Boilermaker ↗Official scope, duties, training and certificationGovernment of Canada Job Bank — Ontario wages ↗Ontario low, median and high employee wage benchmarkSkilled Trades Ontario — Start an apprenticeship ↗Eligibility, sponsors and registrationOntario — OYAP ↗High-school apprenticeship pathway