Understanding the 2026 HVAC Refrigerant Rules for Lewisville, TX Homeowners

Bill Grote

Apr 07 2026 15:00

The HVAC industry is heading into a major shift as new federal refrigerant standards take effect in 2026. For homeowners and small business owners in Lewisville, TX and the North Dallas suburbs, these changes will directly influence everything from system availability to long‑term maintenance costs. While the update is driven by national environmental goals, it has real implications for anyone planning an HVAC installation or replacement in the near future.

At Select Air Conditioning & Heating, we want you to feel confident and prepared. Here’s what the upcoming refrigerant rules mean for your home or business—and how to plan ahead.

Why Refrigerants Are Changing

For years, refrigerants like R‑410A have been widely used because of their strong cooling performance. But these blends also have high global warming potential (GWP), which contributes to heat retention in the atmosphere—something Texans definitely don’t need more of during our 100° summers. To help reduce emissions, the EPA introduced the Technology Transitions Rule under the AIM Act, which phases out high‑GWP refrigerants in favor of more environmentally responsible options.

Even though the regulations often sound geared toward commercial systems, they directly affect residential HVAC systems across Lewisville, Flower Mound, Coppell, Carrollton, and surrounding areas.

What Will Change in 2026?

Beginning January 1, 2026, all newly installed residential and light commercial HVAC systems must use low‑GWP refrigerants. This follows the manufacturing cutoff in 2025, which ended production of older refrigerant‑based systems.

You can still use your current AC or furnace if it’s working well. However, as R‑410A and similar refrigerants become less available, repairs will get more expensive—and parts may be harder to find. Eventually, upgrading to a new, compliant system will be the more cost‑effective choice for most North Texas homeowners.

Understanding A2L Refrigerants

The upcoming systems will rely on A2L refrigerants, such as R‑32 or R‑454B. These offer strong efficiency and much lower environmental impact. The “A2L” classification means they are low‑toxicity and mildly flammable—but don’t let that scare you. Their flammability risk is lower than many everyday household products, and new system designs incorporate modern safety features.

New A2L‑compatible HVAC systems include:

• Integrated refrigerant leak detection sensors
• Improved ventilation and airflow components
• Equipment that meets updated fire and building codes

This combination keeps systems safe, reliable, and fully compliant.

Efficiency, Performance & Cost

Systems built for low‑GWP refrigerants often match—or exceed—the performance of older R‑410A models. Many offer better energy efficiency, which is a big win for homeowners trying to keep energy bills manageable during North Texas summers.

Upfront system costs may be slightly higher, mostly due to updated technology and safety enhancements. But improved efficiency can help offset that investment through lower monthly utility bills. And because older system components will become scarce, repairing older units will eventually cost more than replacing them.

Can You Retrofit an Existing System?

Retrofitting an older unit to use A2L refrigerants is not recommended and usually not allowed. Systems designed for R‑410A simply aren’t compatible with the pressures, lubricants, and safety features required for A2L refrigerants.

Attempting a retrofit can lead to code violations, reliability problems, and safety risks. Installing a new, fully compatible HVAC system is the only safe way to meet 2026 requirements.

Additional Compliance Updates

While homeowners will see the biggest changes in refrigerants, the 2026 rules also include increased leak detection and reporting requirements for larger commercial systems—especially those with refrigerant charges over 1,500 pounds. Reclaimed refrigerants must also contain no more than 15% virgin HFC content starting in 2026.

Most residential systems in Lewisville, TX won’t be affected by these commercial‑level rules, but it’s good to stay informed as the industry evolves.

How Lewisville Homeowners Can Prepare

If your HVAC system is 10–12 years old or you’re noticing rising energy bills, now is the ideal time to explore your options. Waiting too long may result in higher prices or limited system availability as manufacturers transition fully to low‑GWP models.

When choosing an HVAC contractor in Lewisville or the North Dallas area, be sure they’re trained and certified to install A2L‑compatible systems. Ask about:

• Energy efficiency ratings
• Financing options for new HVAC systems
• Whether the equipment meets all 2026 compliance requirements

Plan Now for Long‑Term Comfort and Savings

The switch to low‑GWP refrigerants is a big step toward more sustainable HVAC technology—but it’s also an opportunity to upgrade your system for better comfort and efficiency. With the right planning, homeowners across Lewisville, Flower Mound, and surrounding communities can enjoy improved performance and peace of mind.

If you're thinking about upgrading your HVAC system, contact Select Air Conditioning & Heating to get a free quote or schedule service. Mention this blog for 10% off your next visit!