“Andrew installed a split system ac unit for us. He was punctual and did nice work! (Felt bad for him, he continued working to get the job done, even in the rain). It was a seamless process from the schedule to job completion. We will definitely use Duncan’s Heating & Air for future needs!”
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If you've had us work on your HVAC system, we would love to hear from you too.
 
  
 Our Service Area
We proudly provide reliable HVAC services to all of Yuba, Sutter, and Butte Counties in the great state of California. Don't hesitate to contact us today to see how we can help you with your heating and cooling problems!
We Service All Heating and Cooling Brands
Read the Duncan's Heating and Air Blog
10/15/25
Why Is My Heat Pump Turning On and Off Frequently?
It’s important to diagnose the problem early. Below are four of the most common causes and what you should do to correct them.
Read More09/15/25
Why Are They Called Ductless Mini Splits?
They’re called ductless mini splits because they don’t require ductwork and consist of two main components—a compact indoor air handler and an outdoor compressor—connected by refrigerant lines. This “split” design allows for efficient, targeted heating and cooling in specific areas.
Read More
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Contact Duncan's Heating and Air today!
	
	What are you waiting for?
CONTACT Duncan's Heating and Air TODAY!
 
				 
				 
  
  
 