Plumbers typically earn slightly more on average than HVAC technicians at the national level, with a median annual wage of about $ 63 , 000 compared to $ 60 , 000 for HVAC SkillCat App. However, both trades offer significant earning potential to easily surpass $ 100 , 000 through overtime, commission, commercial projects, or business ownership Roger Wakefield.
In the HVAC industry, the highest-earning specialties and roles fall into three specific categories: commission-based sales, niche commercial/industrial trades, and engineering.
Neither trade is universally harder; they just require different skill sets. HVAC is generally harder for those who struggle with diagnostics, wiring, and math, while plumbing is tougher for those who dislike physical strain, tight spaces, and dirty environments.
According to the U.S. Bureau of Labor Statistics (BLS), plumbers have a slight edge. The median annual wage for plumbers was $62,970 in May 2024. The median annual wage for HVAC technicians was $59,810 in May 2024.
Now, in the United States, the median annual wage for plumbers is around. $57,000 a year. Well, the most experience make about 98,000 a year, and the best of the best, well, they make over $250,000 each year. However, experience plumbers are those in high demand areas.
PMRs for malignancies of the stomach, kidney, brain, and lymphopoietic system were also elevated, especially among plumbers. Chronic rheumatic heart disease, emphysema, liver cirrhosis, and all external causes of death were the major non-cancer causes with significantly elevated PMRs.
The "135-degree rule" in plumbing states that the total (aggregate) horizontal change in direction for a drainage pipe—specifically trap arms—cannot exceed 135 degrees between the P-trap and the vent. Exceeding 135 degrees (such as using three 45-degree bends or a 90 and two 45s) requires a cleanout because sharp turns hinder flow and cause clogs.
There is no single "hardest" trade, as difficulty depends on your natural aptitudes. However, Elevator Mechanics, HVAC Technicians, and Custom Finish Carpenters are widely considered the most difficult to master due to the blend of multiple disciplines, heavy mathematics, and high stakes.
HVAC does require math, but it is rarely complex or overwhelming. Most technicians use basic arithmetic, fractions, decimals, and elementary algebra to calculate measurements, electrical resistance, and equipment capacity.
The Top 5 Highest-Paying Skilled Trades in 2026
Carpentry is often regarded as one of the easier trades to enter. While mastering carpentry takes years of practice, many people find the basic skills relatively straightforward to learn. Carpentry offers these advantages: Basic skills like measuring and framing are quickly acquired.
What's AI Got to Do With HVAC? AI (Artificial Intelligence) doesn't affect HVAC in the way most might expect it to. AI isn't replacing traditional hands-on workmanship, its use is more about using algorithms and smart tech to improve the way heating and cooling systems operate.
The hardest part of HVAC is its multifaceted complexity. Technicians must simultaneously master advanced electronics, intricate refrigeration principles, and airflow dynamics, while frequently working in physically grueling, unconditioned environments like cramped attics, hot roofs, and tight crawl spaces.
Jobs that can pay $400K a year without a degree include commercial real estate brokers, successful YouTubers or influencers, self-employed software developers, high-stakes sales roles like enterprise tech sales, and business owners. These roles rely on skill, market demand, and performance rather than formal education.
Working in HVAC is a highly rewarding trade, but it comes with significant physical and lifestyle challenges. The most common drawbacks include extreme working environments, demanding physical toll, long or irregular hours during peak seasons, and constant safety hazards.
The $5,000 rule is a guideline to help homeowners decide whether to repair or replace their HVAC system. You multiply the age of your unit by the cost of the needed repair. If that number exceeds $5,000, replacing your HVAC system is often more cost-effective.
Although becoming an HVAC Technician may be challenging for some, it is not too difficult if you're motivated to learn and train. If you're good with your hands and can dedicate the time to study and learn HVAC principles, you will find training to become an HVAC technician quite achievable.
The need to conserve or recover refrigerant has led the industry to develop a specific terminology defined by three R's: Recovery, Recycling and Reclaiming.
While you don't need advanced math, a solid foundation in basic arithmetic, algebra, and geometry is essential for success in the HVAC field.
The lowest-earning trades
Plasterers and screeding contractors are revealed as the lowest-earning tradespeople, with workers paid just £23.45 an hour on average.
Stressful jobs are highly subjective, but Air Traffic Controller and First Responders (police, firefighters, paramedics) consistently rank as the top 1 most stressful jobs due to life-or-death responsibilities, split-second decision-making, and unpredictable environments.
Fastest Trade Jobs To Learn
The five most common and essential tools used in plumbing include specialized wrenches, cutting tools, and grip gear necessary for pipes and fixtures.
Pull-push rule is used for measuring the exact distances of pipe fittings and fixture in the plumbing system in doing the final lay out. It is used in measuring the length of the pipes before cutting. 5. Inside caliper is used to measure the inside diameter of a pipe.
Here are the most common plumbing code violations you might not even realize you have—and why they matter.