Mason at Greenhouse Masonry

Time-BasedRegistered ApprenticeshipPaid Training

at Greenhouse Masonry in St. Louis, MO

About This Program

Greenhouse Masonry sponsors this non-union Mason Apprenticeship program in St. Louis, MO. The time-based, employer-sponsored program provides paid, structured training for individuals who want to develop journey-level masonry skills in one of Missouri's most active construction markets.

The program spans 3 years and includes 6,000 hours of on-the-job training and 432 hours of related technical instruction. Apprentices learn to lay and finish brick, block, and stone; mix and apply mortar; read blueprints and establish layout; and work safely with masonry tools and equipment on active job sites. Technical coursework covers masonry math, materials, construction drawings, and industry safety standards.

Upon completing the apprenticeship, individuals earn journey-level mason status, a credential that reflects a high level of craft skill and prepares graduates for a wide range of construction assignments. The St. Louis metro area supports a robust construction industry, and journey-level masons with formal apprenticeship training are well-positioned for long-term career advancement.

Wage & Training

Journeyman Wage

$24

BLS 2023

OJT Hours

6,000

Apprenticeship.gov 2025

RTI Hours

432

Apprenticeship.gov 2025

Duration

3 years

Apprenticeship.gov 2025

Wage data is the national median for this occupation (BLS, May 2023), not specific to this program.

Mason Career Outlook

National Median

$24.19/hr

~$50,315.2/yr

Apprentice Start

$15/hr

Earn while you learn

Job Outlook

Mason employment is projected to grow moderately, supported by commercial construction and infrastructure investment. Demand is strongest in regions with active building and renovation markets. Retirements in the existing workforce are creating additional openings. Masons with restoration skills or concrete finishing certifications have the best prospects.

What to Expect as a Mason Apprentice

Duration

3 years of combined on-the-job training and classroom instruction

On-the-Job Training

~40 hours/week of hands-on work under journeyman supervision (6,000 total hours)

Classroom Instruction

432 hours of related technical instruction (~144 hours/year)

Paid Training

You earn a wage from day one, starting at a percentage of the journeyman rate and increasing as you progress

Time-based program: You'll progress through the program based on completing a set number of hours in both on-the-job training and classroom instruction.

Trade School vs. Apprenticeship for Mason

Apprenticeship

Cost$0 (earn while you learn)
Duration3 years
Starting wage$15.00/hr
Journeyman wage$24.19/hr
CredentialJourneyman card

Trade School

Cost$5,000–$20,000+
Duration6–24 months
Starting wageEntry-level
ExperienceHands-on labs
CredentialCertificate / diploma

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