Major HVAC Changes Are Here in 2025: Is Your San Diego Home Ready?

If you’re a homeowner in San Diego, there’s an important change coming to your heating and cooling systems. As of Spring 2025, the U.S. Environmental Protection Agency (EPA) has enacted new refrigerant regulations as part of the HFC (hydrofluorocarbon) phase-down. These changes will impact how HVAC systems are manufactured, installed, and maintained—and could also affect your wallet.

At Carini Home Services, we want to help our San Diego neighbors stay informed, comfortable, and cost-effective. Here’s what you need to know about the 2025 refrigerant transition and how it could impact your home.


What’s Changing in 2025?

The EPA is reducing the use of high-global-warming-potential (GWP) refrigerants like R-410A, commonly used in residential air conditioners and heat pumps.

Beginning in 2025: New HVAC systems will now rely on low-GWP A2L refrigerants, such as R-32 or R-454B—both of which are mildly flammable and require updated tools, training, and safety protocols for safe installation. As R-410A is phased out, related systems and parts may also become harder to find and more expensive


Why Does This Matter for San Diego Homeowners?

San Diego’s warm climate means we rely heavily on air conditioning, especially during peak summer months. If your system is 10+ years old or uses R-410A, now is the time to think ahead.

Here’s why it’s important:

  • Rising Costs: Manufacturers are increasing prices on both old and new systems due to supply chain changes, new technologies, and updated safety standards.
  • Limited Availability: R-410A systems will be discontinued soon, making parts harder to find.
  • Training & Certification: Not all contractors are prepared to install A2L systems safely—Carini’s licensed HVAC techs are trained and already installing these new system.
  • Peace of Mind: Upgrading now means no surprises or longer wait times in the middle of a San Diego heatwave.

Should I Replace My System Now?

According to HVAC.com, If your system is over a decade old or frequently needs repairs, then yes, it’s a great time to replace it. By acting now, San Diego homeowners can:

Lock in lower prices before 2025 increases
Avoid delays or product shortages later in the year
Ensure a smooth transition with a trusted local contractor like Carini
Improve energy efficiency, saving money on your monthly bills


Why Choose Carini Home Services?

We’re a locally owned, family-operated HVAC company based in San Diego, serving homeowners from the South Bay to North County. Our team stays ahead of all EPA and California energy regulations and we’re already certified and trained to work with the new A2L refrigerants.

We offer:

  • Free Same Day Estimates
  • Honest upfront pricing
  • Best Warranty in San Diego (Up to 12 years)
  • 0% Financing options

Schedule Your Free Estimate Today

Don’t wait until prices rise or your system breaks down. Get ahead of the refrigerant transition with a trusted name in San Diego HVAC Carini Home Services.

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