Get matched with top central a/c installers in Maryland-Line, MD

"My system was working fine before the technician arrived. Afterwards my system failed. I contacted this company based upon Angis List recommendations. The technician talked me out of the services I requested and left me with an non working system."

"They did a good job."

"He was very professional, did a very neat job, cleaned after the job was done. I was very satisfied with the job."

"Great. Doug answered our inquiry promptly and fixed our issue the next day for significantly less than the first quote."

"I have had my system for over 2 years and my main biggest hearing unit has never worked correctly. Prime installed this unit and has tried to bandaid this for 2 years. A couple months ago I was told where prime installed the unit at was causing the problem and I could pay extra money to have it moved due to there installation error. I want happy about that and voiced that through a message. 2 months later and prime has yet to fix our even reach out about this issue. This is poor customer service and for a problem that has existed since install. I also pay for the monthly service and extended warranty, still no fix. "

"Great customer service. Prompt return call. Courteous. "

"Alvin the tech is absolutely the best. Very knowledgeable I learned a lot of things about my AC unit. It’s great customer service with people like Alvin makes glad and know I made the right choice with Blue Dot"

"Excellent. FAST. EFFICIENT. KNOWLEDGABLE. PATIENT. THOROUGH and priced both fairly and competitively."

"I've been a Constellation Home customer for years, and I'd like to share my honest experience. If you're not in a hurry and don't mind waiting for service, this company might be fine. But if you need timely repairs, I strongly advise you to think twice before purchasing their service plan. My air conditioner broke on June 20. A technician came out the next day, June 21, and confirmed the compressor needed replacement. The part was ordered the same day, and I was told it would arrive by June 25. Since then, I've called daily. Each time, the receptionist tells me, "It's coming today." I've repeatedly asked to speak with a parts manager and was promised a callback--yet I only received one call, on June 27. As of today, July 2, the issue is still unresolved. Meanwhile, my elderly parents have been living in extreme heat during a heatwave. Please think carefully before signing up with this company. If you expect timely service, this may not be the right choice. I will be sharing this ex"

"THIS COMPANY IS SCAMMING PEOPLE!!! -On 6/24/21, Farnen and Dermer installed a brand new YORK HVAC system in my home. Everything appeared to be fine, and there were no issues for 2 years. -On 8/28/23, I noticed an extremely loud buzzing coming from my outside unit, so I called them to come check on the problem. My unit was still cooling, but extremely loud. Glen A. showed up to diagnose the problem and seemed like a nice enough guy. After about an hour, he informed me that my entire indoor and outdoor unit need full replacement for a total of $10,900. (I paid $7,500 just 2 years earlier). I said, surely this was covered under warranty because the unit was only 2 years old? He then informed me that it was not because it was â struck by lightning and the warranty does not cover an act of god. -At this point in my head things were not adding up, especially since the unit was still cooling, both of my neighbors units were fine (townhouse) and he did not even check the inside unit. I told Glen I need to think about the replacement because that is a lot of money that I do not have at the time. Glen disconnected my outside unit completely before he left with the hottest week of the summer upcoming (95F-98F) and charged me $189 for the visit. -I am lucky enough to have a Fire Marshall as a good friend to ask him about the situation. This guy sees lightning strikes pretty frequently. He told me there is no way that my unit was struck by lightning based off of what I was seeing and also because it would have gotten to all of my neighbors units (townhouse). He informed me it is literally impossible. THE UNIT WAS STILL COOLING! -I decided to get a 2nd opinion from another company. The other company came out and told me that my compressor was bad and that there was no lightning strike to speak of. They also informed me that it was covered under the warranty and they could fix it. The technician said that he noticed the wiring on the outside unit was incorrect. There was a red wire crossed with a black wire. He said that is exactly why my 2 year old compressor went out. This company even put their findings in writing for me. They replaced my parts and got me up and running for 82% LESS THAN F and D! -I am not the only person this has happened to. It appears to be standard practice. You can see the attached pictures of reviews from other people in the same boat on the Better Business Bureau website. I will be submitting a complaint through BBB and demanding a full refund. This is pure predatory behavior and it is unacceptable!"