We’re proud of the reputation we’ve built one job at a time. Read our full, unedited review history on Yelp, or see a few highlights below.
Oakland — 4.7★ (56 reviews)
Read all Oakland reviews on Yelp →
“Gabriel replaced the gas furnace with a Fujitsu heat pump in less than three days. He replaced all of my duct work and even caught a significant issue with my water heater venting system…Gabriel is a solid, trustworthy person and I will definitely work with him again.”
A J., San Francisco
“I cannot recommend Gabriel enough. I called him at 5pm on a Monday. Within an hour, he arrived at the home. He diagnosed the issue and fixed it on the spot. He did not overcharge or upsell.”
Talia X., Berkeley
“I got a few estimates before deciding, and Gabriel’s was not only the best priced but also the most detailed and honest. The installation was smooth, and the quality of work was top-notch.”
Sweet M., Richmond
Tracy — 4.8★ (43 reviews)
Read all Tracy reviews on Yelp →
“Gabriel’s integrity, fair pricing, and recommendations 100% put E-fficient HVAC in the Above and Beyond category. I will definitely reach out to him for all of our HVAC repairs.”
Jason J., Mountain House
“Gabriel responded right away and was at my home within the hour, and was able to quickly diagnose and fix the problem…‘Efficient’ is right!”
Vienna B., Tracy
“So nice, quick, friendly, and skilled! Found the problem with our 33 year old furnace in just a few minutes.”
William K., Tracy