Guarantee Heating, Air Conditioning and Refrigeration

I called Guarantee AC this morning because my AC was not working properly -- the fan stopped. Nishan told me on the phone that there will be a diagnostic fee (reasonable) but it would be deducted from any repair cost. He was very responsive and came on time. I thought the problem may be with the capacitor. Diagnosed the problem and told me that the capacitor is fine but the motor will have to be replaced and told me my options. We needed the AC to be repaired immediately. He immediately went and secured the motor and repaired it promptly. The AC is working great. Very professional and helpful.

Nshan is the only expert who was able to finally figure out what the problem was leading to my A/c unit staying on all the time, people tried changing the main board, changed wiring and thermostat a few times, and nothing resolved the issue and a waste of money and time, thank god my issue got resolved. His very kind, fair priced and honestly very knowledgeable. Highly recommend him. 👍👍👍👍

Our AC unit decided to stop working at the peak of this heatwave 😓
After calling 2 different HVAC companies and $$$ they both failed to resolve the issue and left us helpless. No return calls or follow up.
Desperate to get this fixed, I went back to searching online again and was glad to find recommendations for Gurantee HVAC in LA Crescenta !!
Reviews indicated that they respond immediately and that's exactly what happened with me!! I called at 4:30pm expecting an answering machine. Bit instead, Nshan the owner answered my call and came out to the house in 20 mins. He figured out the problem and recommended that we get an electrician to change out the faulty wiring since he was overbooked.
He was not pushy at all, honest and clearly explained the problem to us. I have now made an appointment with the electrician and looking forward to getting this resolved tomorrow.
I have to say I am really glad I contacted Nshan. Very professional, prompt, knowledgeable and helpful. Highly recommend his company!! 🖒🖒🖒

I called Guarantee for the first time in late June. They were extraordinarily responsive; figured out the problem immediately and were very gracious. Then we accidentally paid twice and he immediately notified us. Would use them again in a split second. :)

Very professional approach, reasonable pricing and excellent services. The Owner explains all the details about the process and he supervises every single step from obtaining the necessary paperwork, installation to inspection and user training. We highly recommend "Guarantee Heating, Air conditioning and Refrigeration"

I recently called Guarantee Heating and Air Conditioning to inspect my AC unit. They are very courteous, knowledgeable, reliable, and very reasonably priced. I would highly recommend them.

Great service! Called in the morning and was able to come by before noon! Very knowledgeable and fixed the problem quickly! Very reasonable price!
Will definitely use them again!!!

We had our roof A/C and Heating package unit upgraded by this company. They did an excellent job, would recommend their services to anyone.

They were very prompt in responding to my calls, did an excellent job, and were professional in both their demeanor and work. A+

My experience was very positive. Prompt arrival. Good communication. Would work with them again in the future.