All reviews for Diaz Heating and cooling LLC

Diaz heating is the best company in the area! 10/10

It was 101 outside, 83 in my house. I called him around 2 he was at my house at 5:40 on time. My AC stop working, I didn’t know why. He fixed it for me. I was very happy an so was my family. I will let other people know about this company very happy and pleased with everything. He’s also ordered me a Fan for my old AC. Very nice and friendly. Thank you so much.

Update,
I received a phone call today stating that my part was in for my AC. They works around my schedule, very happy about that. Came out installed it, everybody was very friendly, very happy to do business with this company. Thank you again ⭐️⭐️⭐️⭐️⭐️

I referred him to my mother on 07-07-2021,
because her AC stopped working. It was 85° in her house my mother and my father didn’t know what happened to their AC. They came out the same day, fixed it. They had a wonderful conversation with my mother. She enjoyed that conversation. He did a wonderful job she is very happy with his business. She doesn’t know how to leave a review so I’m doing it for her. Thank you again and I will keep referring you to everybody that I know. ⭐️⭐️⭐️⭐️⭐️

10 stars
I have never seen that kind of professionalism.
Great service.. Came the same hour of my phone call, literally in 30 min. He showed in my house at 7:30pm. He was informative in explaining to me what was going in with my (motor) fan system. He took the damage piece and the next morning he was installing a new piece and repairing it. Mr. Diaz repaired my problem very quickly. Very pleased.

Diaz Heating and Cooling has done lots of work for me over the years. From new installations with all new ductwork, to replacing existing systems, running new chimney liners and service calls, they have always been a pleasure to work with.

Carlos, the owner, is professional, prompt and offers fair pricing. If you are in the market for a professional HVAC Contractor, give them a call!

Carlos Diaz is a HVAC god!! I called him and he answered right away. I told him the problem ovwe thw phone he told me to text him my address and that he would stop by when he completed his current job. Carlos and his assistant came over and within and hour fixed my burned and saved me $$$$$$$. Thank You Carlos Excellent Job

I highly recommend Diaz Heating and Cooling. I called around 345 as our house was 83 degrees inside. Mr. Diaz came over at 8pm after working a long day to ensure we had air conditioning for our baby. This team went above and beyond to help us and will do the same for you!!

Diaz heating and cooling provided our family with impeccable service. The kind of service that was standard 50 years ago! Quality bar none.

They went above and beyond by repairing the outside aesthetic of our split unit that our landlord had previously taped with duct tape. One of the men even brought our mail delivery in while the work was on going. We will continue to use this service in the coming years should we require it and recommend them to everyone and couldn’t be happier to do so!!!

Thank you for your service!!

I highly, highly recommend Diaz Heating and Cooling company. We spoke over the phone, I told him what I needed, & I asked for an estimate of what it would cost. He actually did so much more, in my humble opinion, but when it came down to what he charged, he did not go above his quote. Although he very well could have. He has a client in us. Thank you, Mr Diaz. You do terrific work! I will be letting our folks know about you, and your company.

I thought my oil furnace needed only "simple/regular" servicing. After Carlos' inspection, he pointed out to me that my issues were beyond simple. He explained in detail to me what was causing the furnace performance issues (clogged, dirty burner, soot, etc.) and remedied them all. Since his repairs, I have noticed such a huge difference in not just how the furnace works , but also the heat in the home. I don't have to turn up the temp as high anymore. I appreciate his knowledge, thoroughness, and honesty. I highly recommend him.

First of all, it's a shame that we can only give them 5 stars; they deserve many more. In our many decades of home ownership we have hired many contractors; but only a few are positively memorable. Carlos Diaz Heating and Cooling is one of them. A master technician, attention to detail, respectful, prompt; and overall a good man. We could not recommend Diaz Heating and Cooling any higher! Maurice and Melissa Turner - Baltimore

JJ Adams Oil Delivery recommended Diaz Heating and Cooling for our annual oil furnace tune-up, and it was one of the best decisions we’ve made. Diaz was incredibly professional, knowledgeable, and transparent about what needed to be done. The pricing was very reasonable, and it was a pleasure working with him. We highly recommend Diaz for any heating and cooling needs!

I had a great experience working with Diaz Heating and Cooling. They were responsive from the start and took the time to call me directly to talk through the service needs in detail. Their professionalism and clear communication made the process smooth and stress-free. I highly recommend them for HVAC service at The Pines at Dickinson Condominiums and throughout the outer Maryland area. Reliable, efficient, and easy to work with—thank you!

I called to get an estimate. I was told that it's best to find another company because they are booked, although he didn't know my timeline. Then, I was disconnected. I called back, to see why we were disconnected, and the mailbox is full. I wouldn't recommend doing business with this company, and be sure to verify their license number with MHIC.

Update: Your response is incorrect. We did not discuss a price when I called. Otherwise, I would not write this negative review.