Insulation Installer
Install insulation in walls, attics and floors to save energy.
- $49,120
- A few weeks on the job
Skilled Trades & Construction career
Mechanical Insulator
Also called: Pipe Insulator · Heat and Frost Insulator · Industrial Insulator · Asbestos Worker (Union Title)
What mechanical insulators do, what they earn, how long training takes and how to get started, with official BLS pay data and practical, job-level detail.
What does a mechanical insulator do?
Insulation workers, mechanical, apply insulating materials to pipes or ductwork or other mechanical systems to help control and maintain temperature. The median pay is $58,340 per year (BLS, May 2025), most people train for about 4–5 year apprenticeship, and employment is projected to grow +5.1% from 2025–35.
Pay data: BLS OEWS, May 2025 · Outlook: BLS 2025–35 · Checked October 15, 2026
- Median pay$58,340$28.05/hour · May 2025
- Job growth+5.1%2025–35, faster than average
- Openings per year1,800Average, 2025–35
- Typical entry educationHigh school diploma or equivalentBLS classification
- Time to train4–5 year apprenticeshipTypical program length
- U.S. jobs26,700Employment, 2025
What mechanical insulators do
Mechanical insulators wrap industrial systems. They measure, cut and install insulation and jacketing on pipes, ducts, tanks and boilers in power plants, refineries, hospitals and high-rises, and handle firestopping and removal of old materials.
A high school diploma and an apprenticeship are typical. BLS projects about average growth.
Typical duties
- Read plans
- Measure pipes and ducts
- Cut insulation
- Install insulation
- Install jacketing
- Apply firestopping
- Remove old insulation
Work environment and schedule
Insulators work in plants, refineries and commercial buildings.
Schedule: Full time, sometimes outages and travel.
A day in the life
- Safety briefing.
- Insulate chilled water pipe.
- Fabricate fitting covers.
- Install aluminum jacketing.
See a full day in the life of a mechanical insulator →
Mechanical Insulator salary
Half of mechanical insulators earned more than $58,340 and half earned less in May 2025. Pay ranged from about $42,470 for the lowest 10% to $100,220 for the top 10%.
Full mechanical insulator pay scale and hourly rates →
How to become a mechanical insulator
- Finish high school
- Join an apprenticeship
- Learn installation
- Earn certifications
- Become a journeyman
A high school diploma and an apprenticeship are typical.
Step-by-step guide to becoming a mechanical insulator →
Skills and tools
Technical skills
- Pipe insulation
- Duct insulation
- Jacketing
- Fitting fabrication
- Firestopping
People skills
- Precision
- Teamwork
- Safety focus
- Patience
All mechanical insulator skills and tools →
Pros and cons
Pros
- Union pay
- Average growth
- Energy efficiency
- Skilled trade
Cons
- Heat and heights
- Fibers and dust
- Tight spaces
- Travel for outages
Certifications and licenses
- Heat and Frost Insulators apprenticeship: Union.
- Asbestos abatement certification: Often required.
- Firestop certification: Helpful.
- OSHA 10: Safety.
Career path
- Apprentice: Entry.
- Journeyman Insulator: Skilled.
- Foreman: Lead.
- Superintendent: Lead projects.
Learn the job before day one
Our Mechanical Insulator training (10 hours, $89.99) covers the role, 15+ key terms, step-by-step procedures such as insulate a pipe elbow and install metal jacketing, safety and how to land your first job.
Related careers
Plumber
Install and repair water, drain, gas and heating piping systems to code.
- $63,800
- 4–5 years (paid apprenticeship)
Boilermaker
Build and repair boilers, tanks and pressure vessels in power plants and refineries.
- $76,410
- 4–5 year apprenticeship
Sheet Metal Worker
Fabricate and install ductwork, roofing, siding and other products made from sheet metal.
- $61,800
- 4–5 years (apprenticeship)
Compare: Mechanical Insulator vs. Insulation Installer · Mechanical Insulator vs. Plumber · Mechanical Insulator vs. Boilermaker · Mechanical Insulator vs. Sheet Metal Worker
Mechanical Insulator FAQ
Is it a union trade?
Often, through the Heat and Frost Insulators.
Is the job growing?
BLS projects about average growth.
Is asbestos work involved?
Sometimes, with certification.
How much does a mechanical insulator make?
The median annual wage for mechanical insulators was $58,340 ($28.05 per hour) in May 2025, according to the U.S. Bureau of Labor Statistics. The lowest 10% earned less than $42,470 and the highest 10% earned more than $100,220.
How long does it take to become a mechanical insulator?
Most people need about 4–5 year apprenticeship of training. A high school diploma and an apprenticeship are typical.
Do you need a degree to be a mechanical insulator?
No four-year degree is typically required. BLS lists “high school diploma or equivalent” as the typical entry-level education, plus apprenticeship.
More mechanical insulator questions →
Sources
- U.S. Bureau of Labor Statistics, BLS Occupational Employment and Wage Statistics (OEWS), May 2025, SOC 47-2132 (Insulation workers, mechanical).
- U.S. Bureau of Labor Statistics, BLS Employment Projections, Table 1.2 (2025–35).
- O*NET OnLine summary for Insulation workers, mechanical (U.S. Department of Labor).
- BLS Occupational Outlook Handbook.
Reviewed by the Career Education Institute Curriculum Team. Pay figures are national estimates; local pay varies. See our editorial policy.