Insulation Worker Career Assessment
Insulating pipes, tanks, and equipment
Welcome
Mechanical insulation workers wrap pipes, ducts, tanks, and boilers to keep heat in or cold out.
They work in plants, hospitals, schools, and oil and gas sites. You will explore whether this trade fits you.
This takes about 15 minutes.
What is a Insulation Worker?
A mechanical insulation worker measures, cuts, and wraps insulation around pipes, ducts, and equipment. Then they cover it with metal or cloth jackets. This saves energy, stops pipes from freezing, and keeps workers safe from hot surfaces. It is different from putting insulation in house walls.
The Reality: You may work in tight spaces, on scaffolds, and in hot or dusty areas. Insulation can itch and irritate, so you wear protective gear. Old buildings may have asbestos, which needs special training to remove.
Your Responsibilities:
- Read blueprints and plans
- Measure and cut insulation
- Wrap insulation around pipes, ducts, and tanks
- Cover insulation with metal or cloth jackets
- Seal joints with tape, glue, or bands
- Work on scaffolds and lifts
- Wear respirators and protective gear
- Remove old insulation safely
You save energy and keep systems safe from heat and cold.
A Day in the Life
7:00 AM — Arrive at a power plant. Safety meeting and sign in.
7:30 AM — Put on your protective gear. Head to a steam pipe that needs insulation.
8:00 AM — Measure the pipe and cut insulation to fit.
10:00 AM — Wrap the pipe and seal the seams.
12:00 PM — Lunch.
12:30 PM — Cut and fit a metal jacket over the insulation.
2:30 PM — Work from a lift to insulate a duct near the ceiling.
4:30 PM — Clean up your area. Log your apprentice hours.
Careful, detailed work, mostly indoors at big sites.
Training in North Dakota
Most insulation workers train through an apprenticeship. The Heat and Frost Insulators union runs a registered apprenticeship in North Dakota. You earn pay while you learn. We could not find a North Dakota college program for this trade.
Training Pathways:
- Union apprenticeship: Heat and Frost Insulators Local 133 serves North Dakota and western Minnesota. Applications are taken all year.
- Contractor apprenticeship: Some ND insulation contractors sponsor registered apprenticeships.
- On-the-job training: Start as a helper with an insulation contractor.
Where to Train in North Dakota:
- Heat & Frost Insulators Local 133 (offices in Fargo; ND Statewide registered apprenticeship based in Bismarck) — takes apprentices with little experience after an aptitude test and interview (insulators133.org)
- ND insulation contractors — helper jobs and on-the-job training
- No ND college offers a mechanical insulation program. Training happens through apprenticeship and on the job.
Before You Start: High school diploma or GED is helpful. Basic math and measuring. Must pass an aptitude test and interview for the union program. A valid driver's license.
Tip: Start with financial aid, scholarships, and any help an employer offers — that is where the money starts. After that, ask a career counselor or Job Service North Dakota whether WIOA or other programs can help with what is left over, like training, tools, work boots, or exam fees. What can be paid for depends on the program and on your own situation, so ask before you sign up rather than after. Registered apprenticeships let you earn a paycheck while you learn — see jobsnd.com/job-seeker/apprenticeships for ND programs.
Certification & Licensing
No state license for insulation work, but asbestos work needs certification. North Dakota does not license insulation workers. If you remove or disturb asbestos, you must be certified by the ND Department of Environmental Quality (DEQ).
Helpful Credentials:
- OSHA 10-Hour Construction — basic job site safety
- Asbestos abatement worker certification — from ND DEQ, after an approved training course; needed to work on asbestos
- Respirator fit test — needed to wear a respirator on the job
- Journeyman card — earned when you finish a registered apprenticeship
- ND contractor license — needed from the ND Secretary of State to run your own business on any job over $4,000
The Exams: Asbestos training ends with a test. Apprentices are tested in class and on the job.
Cost: Asbestos training and certification have fees. Employers or the union often pay. Ask ND DEQ (701-328-5166) for current fees.
Keeping It Current: Asbestos certification must be kept current with refresher training. Contractor licenses renew every year by March 1.
Salary & Job Outlook
North Dakota Insulation Worker, Mechanical Pay (May 2025):
- Starting out (bottom 10–25%): $22.56–$22.80/hour ($46,920–$47,420/year)
- Middle (median — half earn more, half earn less): $27.95/hour ($58,140/year)
- Experienced (top 25–10%): $34.80–$35.84/hour ($72,390–$74,550/year)
What that means: ND pay is close to the U.S. median. Apprentices start lower and get raises as they progress. Union jobs often include health and retirement benefits.
Jobs in North Dakota: About 190 people do this work in ND today. By 2034, that should be about 210 (about 9% growth). Expect about 20 job openings every year in ND from growth and people retiring or changing jobs. Across the U.S., the change is about 5% growth — faster than average.
Outlook: Fair. This is a small trade in North Dakota, with about 20 openings a year. Plants, hospitals, and energy projects keep insulators busy.
Who Hires in ND: Mechanical insulation contractors, power plants, refineries, oil and gas facilities, hospitals, schools, and large commercial buildings.
Work Setting: Mostly indoors at big job sites, but also outside on pipes and tanks. Can be hot, dusty, or cramped. Some travel to plants around the state.
Physical Demands: Moderate to high. Standing, climbing scaffolds and lifts, kneeling, and working in tight spaces. You wear gloves, masks, and other protective gear.
Sources: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, North Dakota, May 2025 (SOC 47-2132); North Dakota and U.S. long-term employment projections 2024–2034, via O*NET OnLine. Numbers are rounded.
Where This Leads
Path 1: Journeyman Insulator — Work with full skills and pay.
Path 2: Foreman — Lead an insulation crew.
Path 3: Asbestos Abatement Supervisor — Lead safe asbestos removal.
Path 4: Estimator — Figure out costs and bid on jobs.
Path 5: Energy Auditor — Find where buildings waste energy.
Path 6: Insulation Contractor — Run your own business.
The Real Talk
What's Great:
- Earn while you learn
- Mostly indoor work
- Union benefits
- Helps save energy
- Steady work at plants
- Detail work you can take pride in
What's Hard:
- Itchy, dusty materials
- Tight or hot spaces
- Must wear protective gear
- Possible asbestos in old buildings
- Few openings in ND
- Travel to job sites
Be Honest: Are you OK wearing protective gear and working with itchy materials? Can you work in tight or hot spaces? Do you like careful, detailed work?