ASSEMBLE PATH · ONTARIO TRADE 401R
Refractory Mason
A Refractory Mason:
NON-COMPULSORY IN ONTARIOCONSTRUCTION / BUILDING SYSTEMSAPPRENTICESHIP INACTIVE
Original generated editorial image • not a real employee
WHY THE WORK MATTERS
Specialized linings let industrial furnaces withstand punishing heat and chemical attack.
Refractory masons build and repair heat- and corrosion-resistant linings in furnaces, kilns, reactors, tanks and other high-temperature industrial equipment.
4240 hoursgeneral apprenticeship duration
$80,000estimated median at 2,000 paid hours
Ontario tradenon-compulsory classification
EXPLORE IN ORDER
Four questions. One clearer next step.
WHERE THE WORK LIVES
Real settings for real work
steel mills and foundriescement and lime kilnsrefineries and chemical plantspower plants and incineratorsglass, ceramics and mineral-processing facilities
EVIDENCE BASE
Sources & verification
Regulated, numerical and time-sensitive claims link to the authority used. Accessed and reviewed August 25, 2026.
Skilled Trades Ontario — Refractory Mason ↗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