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    Diaz Quality Services

    5.0 (1 review)
    Open 8:00 am - 5:00 pm

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    Services - Diaz Quality Services

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

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    3 years ago

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    Prime AC and Heat

    Prime AC and Heat

    (38 reviews)

    TLDR: Highly recommend. Entire process and experience was fantastic. Alfredo was A++++…read more We had a 9 year old HVAC that was dying in 2023 and called out numerous companies to quote and diagnose for possible repair. We had to deal with a lot of salesmen-y type of people that didn't feel honest. Quoting huge numbers and telling us our AC was definitely going to die any moment. Telling us we had to buy these huge expensive replacements. We knew it was going bad, but the experience we had with the greasy salesmen techs made us decide to wait for it to fail before trying again to find someone good. It finally failed May 2026. I did my research again and found this company. The reviews were great but I was still really nervous because of our last experience. Called them out, fully expecting to go through the process of calling multiple people before finding someone. However, Alfredo was immediately different from the others. He is such a kind and personable person. What a great first impression. If you are able to ask by name, I suggest ask for Alfredo. He arrived exactly on time, too. He didn't feel like a salesperson at all. He felt honest and genuine. He gave us all of our options. From repair to full and complete replacement and everything in between. He discussed with us the pros and cons of each option. It never felt like he was pushing us one way or the other. It felt like he just wanted us to have a working AC that worked for us, period. He also spoke equally to both my husband and I. Many technicians tend to only speak to my husband which is annoying since I take care of most of the home management. Previously we were told we had to do this super expensive option to keep our upstairs cool but Alfredo told us we likely didn't need it, and if we did, we could have it added later. I knew right away we didn't need to have anyone else come out. We chose them and they were able to install our new system same day. We left the house, and they were very respectful of our house while they were here alone. They cleaned up after themselves and locked the doors behind them. He said they would likely be done around 2am and they finished at exactly 1:59am! We had a Lego display on the wall that I'm guessing got bumped (I forgot to remove it before they arrived so that was my bad). Some pieces fell off and broke apart and they put them all on the table. I've knocked that thing off myself and finding those scattered pieces is annoying. No missing pieces at all. I was impressed by this small thing. Just another example of the care and thoughtfulness of the crew. The AC is incredible. I'm very happy so far with our choice in system and in who we picked to install it. I don't feel bamboozled or taken advantage of in any way. Highly recommend! Very glad I found them.

    Another quality job by Prime AC and Heat! They came through in the clutch to solve my cooling…read moresystem issues.

    Precision Comfort Home Services

    Precision Comfort Home Services

    (4 reviews)

    Fast and professional. I will recommend them to anyone. Anyone that needs quick repair call them.read more

    *edited on 4/28/2025** to add pictures that show the copper connection literally melted down due to…read morethe horrible installation from Precision Comfort as well as installing the wrong components ! no wonder why the copper completely melted! Absolutely one of the most absent-minded, boneheaded, obvious mistakes you could make. I only noticed due to the smell of burning metal and smoke. This installation could of burned my house down, god forbid with my kids inside. Used this contractor to come and diagnose my issue. They had to return multiple times over the course of a few days to finally replace the condenser in my outdoor AC unit. The condenser they installed was done improperly, causing the connections/fittings to not fit properly. This caused my AC unit to turn into a block of ice in the middle of hot Texas weather. The fittings/connections from the condenser to the air handler was the wrong type, so they had to come back again. -- An analogy would be, if this was a mechanic shop and they were working on a Ford Truck, yet the manufacturer sent in a Volkswagen engine, rather than talking to the manufacturer to get the correct part sent, they just forcefully installed the Volkswagen engine into a different make/model of a car just to get the job done. This approached ended up causing more problems, money, and time wasted for all parties involved. A little due diligence can go a long way. When they returned, they told me the service visit was free of charge as it was their fault. Upon completing their visit, they had me pay $300 for the visit, even though they EXPLICITLY told me that it was a free service/diagnostic visit since the problem was never originally fixed, AND it was their fault. Normally, before any work gets done, the business tells you about the costs involved and has you sign off on it before they begin the work. This was not the case. They shocked me with a $300 bill that i had to retroactively get removed. More effort and time wasted on my end. This still did not fix the issue. After paying $1500 to Precision Comfort Home Services, my issue was still not resolved. After calling them back and explaining the situation, they then discovered the "real" problem about it being a leak within some piping. That would of been great to know prior to spending hours of my time and not to mention a great deal of money ($1500). When i asked what it would cost to actually fix my REAL PROBLEM, they quoted me again. I responded that I would shop around for a cheaper price, and found many other businesses willing to do the work for 15-25% less of what they quoted me. I asked if they could match the quote and was told "good luck". i am of the personal opinion that this is not how customer service should be handled. Mistakes happen, of course. But when it comes to my HOME and THOUSDANDS of dollars, I want to make sure i am giving my money to people who actually give a shit. Then, the audacity of the owner to text a customer passive aggressive threats at 11:00pm at night because he doesn't agree with a google review. Bad reviews happen from bad jobs. This is one of them. Get used to it and stop harassing customers late at night. Ryan Mudd the technician was wonderful and polite. I can't say the same for the rest of the team. I do not recommend this company at all. Edit: the screen shots maybe out of order but just look at the timestamps and it will tell you the whole story.

    Rescue Air and Plumbing - #RescueAirPlumbing

    Rescue Air and Plumbing

    (596 reviews)

    Northeast Dallas

    I came home Friday Afternoon (10APR26) to find a puddle forming in my garage. My water heater of…read moreover 16 years had finally given out. To Rescue Air's credit, they had been warning us each time they came out for HVAC Filter rotations. Thankfully, Rescue Air's ace plumbing expert Mr. Phillip Blystone was dispatched to my home to assess the situation. Within minutes he identified the issue and immediately started to work out a plan and arrangement my family could manage to cover the expense of the Water Heater replacement: the source of the leaking problem. Rescue Air has a very long history of working with my family since we've been in this home (2016), so that level of service is a given these days. But that's not the complete reason for the 5-Star rating. The next day, now with a working heater, my wife and I discovered that a leak was still present in the Garage. Upon calling Rescue Air to let them know what was going on, Mr. Blystone responded swiftly to our location to triage the leak. Using both his advanced equipment and intuition, he found that in spite of the solid repair and replace he and his team performed of the water heater, a leak was sadly missed during the initial assessment. Most other business would likely have tacked on a "not-our-problem" sort of response to this. However, Mr. Blystone and by extension Rescue Air are not your normal type of company. With careful consideration of the economic circumstance of the recent repair & purchase, balancing years of customer loyalty and being a genuinely saint, Mr. Blystone proceeded to isolate and resolve the leak (a small puncture hole in the T-pipe hot-water line leading from the heater) pro-gratis. Completely unexpected, but definitely much appreciated! It goes without saying it would be extremely foolish for my family to consider doing business with anyone else in the Dallas Metro given Rescue Air's track record with our family. The value lost would be far too great. While I hope to not need their services as often as recently, I definitely look forward to working with them and Mr. Blystone should the need arise again.

    I believe the other negative reviews to be spot-on. Be very, very careful with this company…read more They came in to give an estimate for one repair, but that turned into a big, scary report of all the issues, pointing strongly at a completely new system. Ok. They had photos. Their explainations sounded reasonable, especially when coupled with the photos they quickly flashed through on their tiny phone. So, I told them that we would likely move forward, but I require two things - a copy of all of those photos, and two estimates, one for what they wanted to sell me, and a separate itemized repair list. I got two estimates - one for the original they were pushing, and another for something MORE expensive. No itemized list of repairs. No photos. When I reached out in email, they wanted a phone call. There is almost always a good reason for not wanting to leave a record via email. But, $15,000-ish for a new 5 ton unit, with no new duct work... yeah, you'd better *really* back that up. They could not (would not?) I now have to suspect that thier photos were doctored in some way, maybe even not all of my unit. Who knows? Who looks inside, like that? And, I suspect their reason for not sending me copies of those were dubious. They also pressured the sale claiming that "prices go up next week for Summer." Sha. Ok. This was in March. Good luck with these tactics. Not for me. If you want to give them enough rope to hang themselves to find out for yourself, just act ignorant and as excited for a new unit as they suddenly are to sell you on it. You'll see. It'll cost you $120 for the scammy diagnosis, though.

    Diaz Quality Services - hvac - Updated May 2026

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