Best Heating & Air Conditioning / HVAC In Simi Valley

“Great job with the AC tune-up — very professional, on time, and helpful. I appreciate the attention to detail and the honest recommendations. Definitely a company I would recommend!“

“I engaged Giovanni to perform work on my property, specifically to install new exterior lighting. He provided a comprehensive and competitive estimate when compared to other service providers I consulted. The quality of his work was exemplary; he demonstrated professionalism and courtesy throughout the process. Upon completion, he ensured that no debris or waste was left on my property. If you require electrical services, I sincerely recommend Giovanni, as I am confident you will find his work to be satisfactory.“

“Mario Garcia was great!! Initially, I requested 2 bathroom faucets replaced due to one with low water pressure and the other constant dripping only to learn that the pipes were crystalized/calcified/scaled by my salt water softener. Mario later checked the water pressure in the house and the main and all were good. He then recommended and installed the FLOW-TECH device to neutralize the harshness of “City” water that would preserve my pipes and tankless water heater. My deepest gratitude to Mario for saving me thousands of dollars in the future with
re-piping my entire house!!!“

“Justin is a hero! He spent 3 hours servicing my entire system for $70! Justin is communicative, honest, knowledgeable and hard working. He identified a potential issue with my blower which ended up being the result of a previous bad service. They tried to oil sealed beating which doesn't work. Justin let me blow and clean the blower mirror assembly which made it run like new. He also measured and identified an off limit capacitor which I replace myself from Amazon for $10. Justin also cleaned up my AC outside unit and checked the caps there. My system is now checked, cleaned and running like new thanks to these guys. I highly recommend them. Just make sure you do your homework and take your time to understand if there are truly any potential issues that need fixing especially if your units are on the older side. I opted out of the coil cleaning service as it is too expensive and not worth in my opinion. All and all, great guy.“

“called hvac alliance simi valley for furnace repair when my system wasn’t heating they came out, explained the issue, and fixed it fast now my house is toasty warm again“

“We have trusted L & O for our HVAC needs for about 15 years. This time, the service was the annual "inspection" & maintenance of our HVAC system. Andy was our technician, & he was great!! Personable, explained what he was doing, very professional & with great "people" skills. L & O is always reliable, reasonably priced, & has NEVER tried to "upsale" or say a repair was needed when nothing was wrong with the system. Highly recommend this great company.​“

“The speed of the restoration was incredible after our attic-mounted heater failed and leaked through the ceiling. They managed to dry the ceiling joists and the insulation so quickly that we didn't even have to replace the plaster“

“Absolutely wonderful company! Jeff and his brother worked very quickly but efficiently. They were much more cost effective than other companies without skimping on quality. They were able to come out very quickly to get the job done. I HIGHLY recommend this company. Thank you!“

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“Had our Thermostat go out. Nacho came by within a day and resolved it very quickly. Always great and prompt service.“

“My old air conditioner was dying. I called Keith and he gave it CPR for over an hour but it didn’t make it!!!
Well, everything passes in due time and is replaced by a new generation!! Keith was able to get a new unit and install it by the next morning …
So the story goes on… after a week , I could not get the thermostat to work ( it died too) so consequently ….. no air and of course, the first heat wave had hit Simi! I called late afternoon and Keith and Ayden were there the next morning with a brand new thermostat!
I can’t even tell you how much I recommend this business!!!! Professional, experienced and friendly as all get out!!!
I’m sold.. an A++ and a “10”!!!“

“They came over to install a four-outlet ducted air conditioning system in our home. They completed the job in approximately 4 hours. They even cleaned up after themselves before leaving.“

“Michael dropped in and did some maintenance on my air conditioner, which had a few problems with it. He was kind and helped educate me on how best to care for my specific setup. Great and personable service!“

“Ac stopped working during Labor Day weekendErik came out the same day- just a few hours within calling him. I’m so grateful! Fast efficient service. He’s a no nonsense type of guy- I can tell he was very busy with other call but he got the job done and went on his way.Thanks!Service: A/C system repair“