 If your air conditioning system is more than 10 years old, waiting until next year to replace it will cost you thousands more. On January 1, new refrigerants on air conditioners take effect. And you guessed it, it will cost you much, much more money. A 14% increase on air conditioning units. So act now and save thousands. Call Dukes Plumbing, Heating and Air. When you need them bad, you need them good. Call Dukes at 775-882-0444 or go to dukesplumbing.com.