HVAC Refrigerant Transition Update (U.S.): What Contractors Should Know for 2025–2026
Overview
The U.S. HVAC market is in the middle of a refrigerant transition driven by federal HFC phasedown rules under the AIM Act and the EPA’s “Technology Transitions” program. In simple terms: new equipment categories are moving toward lower-GWP refrigerants, product lines are changing, and contractors are seeing new requirements around installation practices, documentation, and training. While the details vary by equipment type, 2025–2026 is a key period for planning because some compliance dates and installation expectations have been widely discussed across the industry and may continue to evolve.
What’s actually changing
1) New equipment refrigerants are shifting
For many comfort-cooling applications, equipment manufacturers have moved toward lower-GWP refrigerants (often A2L refrigerants for certain AC/heat pump products). This is less about what you can service today and more about what new equipment is available and how it must be installed and supported going forward.
2) Timelines depend on equipment category
Not all HVAC equipment falls under the same deadlines. Residential and light commercial air conditioning and heat pumps have been a major focus, and other categories (including some commercial refrigeration and specialized systems) can follow different compliance timelines and requirements. The practical takeaway is that contractors should treat “the rule date” as category-specific, not one universal cutoff.
3) Efficiency rules are separate
The shift to updated efficiency metrics (SEER2/EER2/HSPF2) was a DOE efficiency change that took effect earlier (not a brand new “EPA 2026 efficiency rule”). Refrigerant transition and efficiency compliance often overlap in equipment selection, but they are not the same policy.
Why 2026 keeps coming up
Across the industry, 2026 has been widely discussed because of how remaining inventory and installation expectations for certain higher GWP equipment have been interpreted, and because enforcement and implementation guidance has been a moving topic for contractors and distributors. The best way to handle this on your website is to avoid absolute statements like “everything changes Jan 1, 2026,” and instead say:
“2026 is an important planning year as the refrigerant transition continues and installation expectations may vary by equipment category and updated guidance.”
What it means for contractors (practical impact)
1) Training and handling practices matter more
As lower-GWP refrigerants become more common in new equipment, contractors benefit from ensuring techs are trained on safe handling, best-practice installation procedures, and leak prevention habits especially if your team works across both older and newer equipment platforms.
2) Documentation expectations are rising
Many contractors are tightening internal processes around refrigerant handling, recovery, and install checklists—less because “paperwork is fun,” and more because consistency reduces call backs, improves QA, and helps in the event of manufacturer or compliance questions.
3) Customers will ask about system differences
Even when you’re doing the same job (service/replace/retrofit), customers may notice new refrigerant names, updated labels, and new equipment behaviors. Contractors who can explain the “why” clearly tend to build trust faster and close work more smoothly.
Hiring implications (what’s different now)
This transition is changing what “strong HVAC talent” looks like on paper and in interviews. Employers are increasingly prioritizing candidates who can demonstrate:
comfort working across different equipment generations and refrigerant types
disciplined install procedures and troubleshooting habits
clean communication with customers and internal teams
willingness to follow process (documentation, checklists, safety)
If you’re hiring, it helps to define the role clearly up front: commercial vs residential, service vs install, on-call expectations, travel radius, and any certifications you require for your workflow.
Quick FAQs
Can we still service existing systems?
Existing systems will remain in the field for a long time. Most of the transition pressure is on new equipment categories and what is manufactured/imported/sold going forward, not on “everything currently installed.”
Are all refrigerants changing at once?
No. Requirements vary by equipment category and application. The most reliable approach is to follow manufacturer guidance for the equipment you install and stay current with EPA/industry updates that apply to your business model.
What should we do if we’re not sure what applies to our work?
Start by clarifying what you install most (residential AC/HP, light commercial, refrigeration, controls, etc.). Then align training and inventory planning around those categories first.
Riverstone note
We share updates like this to help contractors plan ahead—and hire ahead. If you’re adding HVAC talent in 2026 (service techs, installers, refrigeration specialists, controls/BAS, lead techs, or project leadership), we can support Speak to our team or Request HVAC Candidates to get started.