Had my heater go out in my office. a colleague recommended we call GDS since he already used them in his house. The guys were here the same day and fixed my heater in no time:) now everyone is warm and cozy. great service and great experience, Would totally recommend!! read more

GDS Heating and Cooling - Heating & Air Conditioning/HVAC Near Me - Calabasas, California

GDS did such a good job. They changed our 20 year old system along with a new electric heat pump. Gidi and Danielle were so easy to work with. They were professional, had great communication, and were able to get an appointment within the week. I had a couple quotes and they were not the cheapest but at the end of the day they did such a great job don't think that matters for years to come. read more

GDS Heating and Cooling - Our new condenser - Heating & Air Conditioning/HVAC Near Me - Calabasas, California

Jimmy came out to check a section of the duct network in the attic. Turned out one of the rooms had no insulation up there. He asked $700 to insulate a 110 sqf area above that room. I didn't know any better so I said OK. Turns out that the material he used was from Home Depot (enough to cover 88 sqf - $114 plus tax, cheapest insulation with lowest R). Basically charged $550 for half hour work (plus half hour to get to go HD and back). Jimmy was very nice but I believe I was severely overcharged. After he left and after I found out how much the material cost I called around and a few providers quoted $300-$400. Call around before you agree to do any work with them and don't get fooled by a no-cost service call. Also, make sure you ask for receipt and explanation of what materials they use. P.S. to address owner's response - they are calling "diagnosing" a bare attic floor that was lacking insulation a "complex issue" that required their "expertise." Nothing needed to be replaced or repaired. There was a dead rat, however. Please be aware, now I can see hiring them for the job was a big mistake. Wow. read more

My experience with this company was super professional. My ac wasn't working well and i got a few quotes for repair, they were the quickest to get a technician out and Danielle the office manager was available for every question i had. The technician came out and diagnosed the problem which needed a repair part. He went out got the part and came back to fix it right away. I appreciate the extra effort and care and my AC works great now. read more

My HVAC maintenance company of 30 years went out of business, and so I went to the Nextdoor app to get some recommendations. There were so many listed, I went with GDS, and I'm so glad I did. I spoke to Danielle, who made it so seamless and easy to make an appointment right away. The serviceman, Jimmy, not only was on time, but a little bit early. He had a great attitude and accomplished everything promptly. I needed different sized filters than he he had in his truck, so he went to the office and was back within the half hour to replace them. Also, he went out of his way to clean the outside of my vents without my asking. I will definitely be using them for my seasonal maintenance. I highly recommend this business. read more

This business is a scam! About two months ago, I was eager to get a comprehensive diagnosis as to why our air conditioner wasn't able to cool our house to below 75 degrees. So I researched and sought a professional company to come do a comprehensive diagnosis. I called GDS and explained that last year we had a family friend come look at our AC and all he did was add freons but that still didn't cool the house to below 75 degrees. I told them that this year, I wanted a professional company to come do a comprehensive diagnosis because I want my house to cool to 69 degrees etc (including when guests are over). They sent their worker named Jimmy and when he arrived, I told him to please do a comprehensive diagnosis. I asked him to check the vents and everything. He didn't do that. Instead, he insisted that the answer to all the problems was to add freons. I kept asking him "are you sure?" He started showing me gauges and different numbers and he was very confident that that was the solution. He charged $425 for that service and I took it because I trusted that they were a professional company and knew what they were doing. Even after he finished that service, I asked him "don't you want to check the vents too?" He said it wasn't necessary because he solved the problem. Two months later, the summer began and our air conditioner cannot cool the house to below 75 degrees. I completely wasted my $425 on this company. I am extremely frustrated. I called the owner, Danielle, and she explained that my unit is old and that my unit isn't capable to cooling the house to below 75 degrees. I told her that she had two opportunities to tell me that before I spent my money on them 1) during the initial phone call and 2) when her worker Jimmy came to my house. They didn't communicate that to me. Instead, Jimmy misled me to believing that spending $425 would fix the problem and it didn't. When I complained over the phone, the company even acknowledged their miscommunication, but they didn't have the basic business ethic to give me a full refund. They said they can only offer a refund for the technician's visit which was $125. That's ridiculous because the basis of this whole mess was the technician misleading me to believe that the freons would fix the whole problem. That's fraudulent. Danielle also explained to me over the phone that my unit was too old. I told her that she could have said that in our initial phone call and when Jimmy first arrived. They said that if I ever wanted to buy a new unit from them, they would give me a discount. Why would I want to buy a new unit from them after they already scammed me? They scammed me once, why would I want them to scam me again? If they had basic professional decency, they would give me a full refund because of their clear misleading communication. But they don't have that basic professional decency. PLEASE STAY AWAY FROM THIS COMPANY. I hope none of you go through what I did with this scam of a company. I urge you all to find another company. read more

I am so very happy with all my experience with GDS. I can't recommend them enough. We were treated well and respected as customers. Everything promised was delivered. Their crew was fast, efficient and did high quality work. I received bids from 5 separate companies for a heat pump systems, replacing my old furnace and AC. Their bid was as much as $9K lower than three others. Danielle was very responsive and worked with me, offering me 3 different options of equipment. She offered experienced opinions and when I had specific questions, she contacted the manufacturer for answers. She was easy to talk with and eager to assist throughout the process of ordering, installation and afterward, checked in as a follow up to make sure we were happy. Jimmy was on-site supervising, and the crew finished in one day. Everything in the contract was done above expectations, including new ducting, lighting, wood work. I highly recommend! read more