# Frequently Asked Questions About AC Installation Cost in 2025

New Federal regulation that took effect on January 1, 2025 requires new HVAC systems produced to use R-454B refrigerant, replacing R-410A for environmental reasons.

##  Why are new AC installations more expensive in 2025? 

This change has lead to increased manufacturing costs that will make the cost of a new HVAC system an average of 20% more expensive than 2024. Air Comfort Service has invested heavily in R-410A systems produced in 2024. These brand-new systems are still available in limited quantities. Act now and take advantage of 2024 pricing before the increase. We have financing available and you may be eligible for rebates, tax credits, and other incentives.

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##  AC Install Cost in 2025 FAQ 

 Why does the new refrigerant make HVAC systems more expensive? The switch to this new refrigerant requires updated HVAC system designs and components which are compatible with R-454B. This has led to an increase in the manufacturing cost of these systems, which is reflected in their final price.

 Will new systems have the same performance as pre-2025 units? Yes, HVAC systems designed for R-454B refrigerant perform efficiently and reliably, just like pre-2025 units that used R-410A. Enhanced safety features also contribute to a higher manufacturing cost.

 What is the flammability risk with R-454B? The flammability risk with R-454B is slight, and no worse than common household products. R-454B is classified as a mildly flammable refrigerant, meaning it has a very low risk of flammability under normal circumstances. HVAC systems using R-454B are designed with enhanced safety features.

 Can I still service my current system? Yes, you can continue to service your existing HVAC system. Technicians can perform maintenance and repairs on systems that use R-410A. Parts for pre-2025 systems will still be available for the foreseeable future.

 Will my current system be able to use R-454B? No, R-454B is not compatible with HVAC systems designed for R-410A. The two refrigerants have different chemical properties, and systems using R-454B include advanced safety mechanisms that older models lack. However, systems using R-410A will still be supported with parts and services for the foreseeable future.

For more detailed information about R-454B refrigerant and its environmental benefits, check out this resource from our partners at Carrier [here](https://www.carrier.com/residential/en/us/glossary/r-454b-refrigerant).

Still have questions? Contact us today at [314-819-0028](tel:+13148190028) to speak with one of our experts about AC installation and HVAC solutions tailored to your home!