R-410A Phase-Out 2026 - Complete HVAC Contractor Guide

R-410A is the refrigerant that's been in the vast majority of American residential split systems since 2006. Under the American Innovation and Manufacturing (AIM) Act, EPA is phasing down HFCs - and R-410A (GWP 2,088) is squarely in the crosshairs. Houston contractors are feeling it: supply is tight, prices are up 40–70% from 2022 levels, and new 2025+ residential split systems can no longer be manufactured with R-410A.

But contrary to what some homeowners think, R-410A is not banned. Here's what's actually happening, and how to position your service business through 2029.

What the AIM Act actually does

The AIM Act caps total US production and import of HFCs as a percentage of a 2011–2013 historical baseline. Each step-down forces manufacturers to prioritize low-GWP refrigerants over high-GWP ones like R-410A.

• →2022: 90% of baseline
• →2024: 60% of baseline - first major supply squeeze
• →2026 (now): 60% pre-step - peak R-454B demand
• →2029: 30% of baseline - steepest single step
• →2036: ~15% - near-total HFC phase-out

R-410A is still legal - for servicing existing equipment

EPA Section 608 certified technicians may continue to purchase and use R-410A to service the ~100 million residential systems and millions of light-commercial units installed between 2006 and 2025. The restriction is on manufacturing new R-410A equipment, not on servicing what's already out there.

That's good news if you're a service-heavy contractor. Your R-410A customers don't disappear overnight - they just gradually migrate to R-454B as their existing equipment reaches end of life.

What replaces R-410A

For new residential and light-commercial installs, OEMs have almost universally moved to R-454B (Honeywell Solstice 454B) or R-32 (single-component HFC). Both are classified A2L - mildly flammable - and require equipment specifically rated for them.

Critical: R-454B and R-32 are NOT drop-in replacements for R-410A. Using them in R-410A equipment voids warranties, creates safety risk, and violates EPA/SNAP rules.

Pricing: what to charge customers

R-410A at the wholesale level now runs $230–$490 per 25 lb cylinder depending on brand and volume. Contractors are generally adding 2–3× markup on service calls where the cost is passed through, with clear disclosure of the price increase driver (AIM Act supply).

Educate the customer. A homeowner who understands the phase-down timeline is more likely to accept a higher bill and more likely to budget for an R-454B replacement when their 15-year-old R-410A unit finally fails.

Action items for Houston contractors

Today, make sure you have:

• →Enough R-410A virgin stock on your trucks for summer service - don't get caught short in a July heat wave
• →A1/A2L recovery equipment separation - A2L work uses different cylinders
• →Supplemental A2L training documented for every tech handling R-454B / R-32
• →Pricing sheets updated quarterly - refrigerant pricing is volatile
• →A conversation-ready explainer for homeowners about why prices are climbing