4.6 
977 *The Angi rating for Nest Installation companies in Duarte, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in Duarte, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on July 14, 2026
Serving Duarte, CA and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
"Al & A.J. are two of the nicest & hardest workers I have ever hired. Will use them again!"
+50
Serving Duarte, CA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Assemble a Sauna. A very complicated job. He did a wonderful job. Very thorough and complete."
+21
Serving Duarte, CA and surrounding areas
Approved
In business since 1978
Free estimates
Emergency services offered
"Very quick response time. No problems and good service."
+3
Serving Duarte, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Warranties offered
"They responded to request with an appointment that afternoon and James as not only on time but early. James was very knowledgeable about installing both Nest Thermostats and did a great job and setup the Google home for me. Highly recommend them."
+83
Serving Duarte, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Outstanding work. Outstanding professionalism. Outstanding customer service. I can’t say enough about how easy it was to work with Joseph and his team. I highly recommend him for all HVAC needs. They knew exactly what was needed for my home HVAC. The unit works perfectly. Did not have to wait for equipment to be ordered or long to have it installed."
Serving Duarte, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Was my consultant and advisor in the new repair system for my home"
+6
Serving Duarte, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"Great HVAC installation- professional, on time, and everything works perfectly. The team was friendly, efficient, and left everything clean. Highly recommend!"
+12
Serving Duarte, CA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Ray is very professional, and provided options for my air conditioning unit replacement. Ray went out of his way to replace a small gas line leak that he found. He also drove to Anaheim early on Saturday morning to pick up a part that was needed for the AC unit, and came over to install it so that I would have the air conditioner available for the upcoming heat wave this week. He and his team were on time, and considerate during the installation process. I highly recommend RS Air Conditioning & Heating."
+2
Serving Duarte, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Guillermo replaced our HVAC unit (heat pump and condenser) several years ago. He also recommended a particular app that controls the thermostat and room temp sensors to control the temperature in varying rooms. He has a great personality and very competent. He is now my goto guy for all HVAC services."
Serving Duarte, CA and surrounding areas
Approved
In business since 1988
Free estimates
Warranties offered
"They were very thorough and did a great job."
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