
Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 2005
Free estimates
Emergency services offered
"they did a very good job"





+24


Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 2005
Free estimates
Emergency services offered
"they did a very good job"





+24

Serving San Dimas, CA and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Completed work quickly and efficiently."





+67

Serving San Dimas, CA and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Job was done properly."





+42

Serving San Dimas, CA and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2021
Free estimates
Warranties offered
"Trinity was the most reasonably priced contractor to install my smart thermostat. James was really helpful and also helped diagnose some additional issues that were going on with my system while he was here, but in no way made me feel pressured to do additional work right now. I now know what to look for to avoid issues in the future and will absolutely call them first when I'm ready for a new air conditioner!"





+83

Serving San Dimas, CA and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Brandon came out on a Sunday and looked over the job site for details needed to present an estimate. Within a day I had the estimate with 3 options from low to high, all of which were reasonable the only difference being what equipment I wanted to install. Option #1 and #2 were lower end brands that were less expensive but since the difference in price betwee Option #1 and Option #3 was about $1400, I went to Option #3 which was their top tier brand, Carrier that clearly is an industry leader and trusted brand for longevity. I was installing a SINGLE ductless to cool a standard bedroom size room with a 18,000 BTU unit. The job took a total of about 5 hours since they were mounting the unit in a second floor bedroom and they needed to run the power/refrigerant lines two stories down to the compressor mounted on the wall. Everyone from Office Staff Jim to installers were absolutely wonderful to deal with. You can trust this company."





+14

Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 1997
Free estimates
Emergency services offered
"Job done promptly and on time."





+37

Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 2024
Free estimates
Emergency services offered
"Pedro was cordial and professional and gave me options on replacement thermostats that was easy for me to operate."





+9

Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 2002
Free estimates
Credit card accepted
"Very professional"





+14

Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 1996
Free estimates
Emergency services offered
"First company to be up front. Not rip us off. Benny was very friendly during the service call."

Serving San Dimas, CA and surrounding areas
Angi Approved
In business since 1988
Free estimates
Warranties offered
"Heard about them through Angie. They have a professional and comprehensive set up. Their dispatch provided updates on when the technician would arrive. Even provided me with photo and brief work history of the HVAC technician. Phil, diagnosed and performed maintenance on my unit. He was very patient and waited until my work meeting ended. I’m very pleased with their professional service."





+8
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