HVAC reviews in Milpitas, California

I highly recommend Comfort Energy! Maurice did great work explaining our options and providing clear quotes with all costs and work required clearly documented. Guillermo, Dustin, Herbert & Beto did an excellent job installing our new Mitsubishi Electric Mini Split AC system as well as our Rheem Electric Heat Pump Water Heater! They told us what to expect every step of the way, completed the installation quickly and efficiently, cleaned up after themselves each day of work, and helped us understand how to use our units. We got the quality of work we expected at the price that was documented and approved with no hidden costs. Great job, Comfort Energy!

Excellent service. Our capacitor blew, and so we got home one day with our fan blowing but the AC not working. To my relief, Sal the owner, came the next morning and diagnosed and solved it quickly. That was going to be a day in the mid 90s. Sal strikes me as a no b.s. who takes pride in doing a job well done.

During this recent heat wave our AC started acting up! I called Sal, he immediately responded, did the evaluation/diagnosis on our AC, explained everything in detail. Job done is an hour! Very quick, professional and straightforward! Very happy with his service! Also gave 1 year warranty on parts and service! 👍

Fast and efficient about getting us a quote and what needed to happened to changed our AC unit. Transparent about pricing and fees. Easy to communicate and work with. Got our AC changed and installed in half a day (ours was leaking freon like there's no tomorrow). Professional and respectful, was smooth and hassle/pain free to work with. One of those rare gems where the owner is personable and knowledgeable, and the workers are respectful and thorough. Cannot recommend enough 👌🏻.

CostLess was a great find for me. I've used them a few times now and have always had a great experience. This time they were able to diagnose my Nest Thermometer error as a wire issue from my furnace to my A/C. I was told it was a 2 man job and since only 1 guy came out, they would reschedule for another day. I asked if there was anyway they could get it done today, the guy called the boss and they were able to round up more help and completed the job in an hour. Great work!!

Highly recommend! They replaced my furnace quickly and efficiently. The entire team, especially technician Abraham, was professional and courteous. Pricing was transparent, and they took great care to protect my home. A truly positive experience!

My chiller unit wasn't working, and Sal came out right on time, just as he said he would. He fixed the unit in no time at all. He was friendly and professional, and I would recommend him to anyone.

Sal helped us install the Nest thermostat. Super efficient and knowledgeable!---2019

Now it's 2025, time to clean our HVAC system. It's been 6 years and we called CostLess again. Sal Junior was our guy and he did a great job. He set up equipment cleanly and orderly. He is super knowledgeable and explained to us the mechanism, the process and what the maintenance includes. We were impressed. Sal Junior went above and beyond to check our exhaust fan and identified issues that's not even part of the HVAC. We're super happy that we asked CostLess to do the job. It's a good feeling when you see skillful workmanship and good work ethics runs in a family business. I'd recommend CostLess for their services.

Today was a VERY HOT DAY AND SAL CAME TO THE RESCUE. I saw their advertise for a FREE diagnostic on google and my neighbor and I decided to give them a call right away
Sal showed up within 3 hours and fixed my ac really quick eventually im am going to replace it because it is over 25 years old my home now is cool and comfortable
Thanks a million

This is 5-star review for Cost Less Heating and cooling Company. Our Carrier AC stop working last week, so last weekend we called a few companies for repair. However, we decided to use this Company because Sal (owner)was very polite, knowledgeable and let us know what should be done over the phone. He came on Tuesday at 8:15 am, diagnosed problem very quickly, explained to us what kind of issue we have with our AC, had the part in his car and resolved issue in 15 minutes. Bravo! Also, Sal explained to us that all what we need to do is change our filter every quarter as we did before. The BEST service EVER! I advice anybody with AC problem don't look for any other Company ever! Sal is the BEST! Definitely will use this Company in the future. Thank you, Sal, for outstanding service!

Sal was amazing. He went the extra mile (actually 200 miles round trip) to get the necessary part that another company told me would take two months to get. The best part was he didn't push me to buy a new furnace I didn't need. He charged a fair price, and I couldn't be happier with service I got.

Sal and Ritchie are absolutely amazing. Came out to do duct cleaning and inspection. They said for having an older unit, it was in good shape. They didn't try to sell me a new one like other places have done in the past. Amazing and honest company.

I called late on a Saturday night about an A/C issue with the central air conditioner in my house. Sal answered the phone and was able to troubleshoot the issue with me over the phone. With his help, I resolved the issue. I’m very satisfied and highly recommend CostLess Heating & Cooling.

Unbelievably quick. Labor day weekend, and the AC went out. Sal showed up 30min after I called and got it back working again in less than a hour. Reasonable rates too. Would absolutely use these guys again.

I had an excellent experience with Sal and his team at Cost Less Heating & Cooling Services. From start to finish, they were professional, punctual, and incredibly knowledgeable. Sal took the time to explain everything clearly and made sure the job was done right the first time. You can tell he truly cares about his customers and takes pride in his work.

If you’re looking for reliable and affordable heating and cooling services, I highly recommend giving Sal a call. You won’t be disappointed!

Quick to respond, available for a free estimnate the next day. Both Sals (senior and junior) arrived on time (early actually), solved the problem with our AC quickly and effectively without pushing to replace the whole thing (as others have done), and added a couple of years (fingers crossed) to our aging system.
Sal was very clear about our options and cost, and is easy to work with. Pretty sure I did not get the lowest cost to get the job done (never got details on the amount of refrigerant that was actually added/needed), but getting the system fixed quickly on a hot sunday was totally worth it.

Sal is very efficient and straightforward, he came by quickly and we got our heater installed over the weekend.

I had an amazing experience with Costless Heating & Cooling! From the moment I called, their team was professional, friendly, and efficient. They showed up on time, diagnosed the issue quickly, and had my AC system running perfectly in no time. What really stood out was their honesty—no upselling, no pressure, just straightforward service at a fair price. You can tell they take pride in their work. I highly recommend Costless Heating & Cooling to anyone looking for reliable and trustworthy HVAC service!

They arrived in under an hour of my call! The repair was done quickly and at a fair price. I’m greatly enjoying the cool air in my home again! The tech was super friendly and communicative as well. I’ll be using them in the future and recommending them to others!

I can’t say enough great things about Sal! My air conditioner suddenly stopped working during a really hot day, and I was worried it would take hours—or even days—to get it fixed. But Sal came out right away and had it running again in a matter of minutes. He was incredibly professional, friendly, and clearly experienced. He explained the issue clearly, didn’t try to upsell me on anything I didn’t need, and made the entire process stress-free. I truly appreciate his honesty and fast service. If you’re looking for reliable AC repair, I highly recommend Sal. He’s the real deal!

It had been a while since I turned on my a/c unit so when I fired it up during this last heatwave, I got a bummer of a surprise. I called Costless based on their great Yelp reviews. Sal was able to quickly diagnose a blown capacitor and leak. He had the parts needed on his truck and got my a/c unit running in about 30 minutes! They’ve got a customer for life now! Highly recommend! 10/10! #savedtheday!