Get matched with top window a/c unit installers in Merion Station, PA

"Gary Air, did an amazing job! They were on time, professional, and my system is running perfectly. Highly recommend them for anyone needing heating or cooling work"

"Phenomenal! The repairman, Sherrod, came and fixed the issue quickly and beyond professionally. I will definitely call Dilling Heating & Cooling again!"

"Jeff and his team did and excellent job with the installation of two Daikin HVAC units. I had many questions about the units and install and they were quick and thorough in responding. The price and warranty were competitive with high end brands. The crew was courteous and professional during the two day install. They were the only company that included replacement of the coolant lines, rather than just flushing the old ones. So far the Daikin variable speed AC units are exceptionally quiet and the house is very comfortable. Would recommend Ace Home Services and Unique Comfort without reservation."

"Crew was professional and they did a great job."

"We were made to sign a Waiver of Right to Cancel and an Emergency Work Authorization although I had made it clear on the phone that it was not an emergency, we were just replacing functioning older elements with new ones. He then gave us a price that, even though it was said to be a service partner rate (they had previously done HVAC work for us), seemed extremely high, but we didn't have anything to compare it to (a mistake), so we said okay and he began work. He appeared to be having trouble removing the old sink, but did not inform us that he was damaging our counter top in the process. Not until he was all done and waiting for someone to bring him the right color caulk did he show us the many cracks in our counter top. He seemed surprised that we were unhappy about the damage. He went out to his truck and called in, then returned to say that his manager offered to install a toilet we had wanted to have replaced later at no charge. That didn't seem like much consolation when we are going to have to get all new counter tops installed in our kitchen, plus the sink and garbage disposal taken out and reinstalled. Later we had another plumber install our toilet, which cost less than a third of the service partner rate originally quoted to us by the Horizon technician, with no damage. We did not want Horizon to do any more plumbing for us. In addition to the ruined counter top, when the caulk cured it pulled away from the gap, leaving holes around the back and sides. We were also surprised that he took everything with him without asking us. I told him that the old garbage disposal still worked, we were just replacing it so we wouldn't have to do it later, and would have tried to see if someone else could use it. The same with the unused pieces from the new faucet. We chose not to install the soap dispenser, and he left us the just the pump piece while taking away the straw, the bottle, and the rest of the assembly pieces, as well as the deck plate and gasket that we didn't use. Maybe technicians are told to scavenge spare parts for future jobs, but we had purchased everything ourselves so it does seem like we should have been asked, at least. I was not watching him when he packed up because I was still in shock about the counter damage and the prospect of now having to replace counter tops when we hadn't planned on it. I submitted a review to Horizon's website, but it never appeared there and I received no response."

"Service was excellent. Technician was courteous, professional and thorough. He explained everything."

"A Raving Review for Green Mechanical LLC! If you’re looking for the absolute best HVAC service around, look no further than Green Mechanical LLC! This company is truly a gem, and I couldn’t be more thrilled with the incredible service they provided. My heater had been misdiagnosed by another company, leaving my family and me in the cold—literally! Thankfully, I called Green Mechanical LLC, and they completely turned things around. From the moment I called, I knew I was in good hands. Devin Green, the owner himself, came to my house to personally assess the issue. This level of dedication and care is something you just don’t see every day! Devin’s professionalism, deep expertise, and genuine commitment to solving the problem made all the difference. He didn’t just slap on a temporary fix or rush through the job—he made sure to thoroughly diagnose the issue and explain every step of the process to me. A huge shoutout to Jacob and G, who also worked on my system. They were punctual, knowledgeable, and incredibly respectful of my home. Their teamwork and attention to detail were top-notch, and it was clear they take immense pride in their work. Thanks to Devin, Jacob, and G, my heater is now working perfectly, and my family can finally enjoy a warm, comfortable home again! I also want to emphasize how important it is to support small businesses like Green Mechanical LLC. These are the companies that truly care about their customers and their communities. Devin and his team are local experts who go above and beyond to deliver top-notch service, and they deserve every bit of your trust and business. If you need HVAC services—whether it’s a repair, installation, or just regular maintenance—do yourself a favor and call Green Mechanical LLC. Their commitment to excellence, fair pricing, and outstanding customer service make them a company you’ll want to recommend to everyone you know. Thank you, Devin, Jacob, and G, for your amazing work and dedication. You’ve earned a lifelong customer! 🌟"

"Very knowledgeable staff, on time, work done right. Great price and great product offered, can't ask for better! Will hire again."

"Repair Service to Fix Gas Boiler - WM Henderson first sends out a tech who is not familiar with gas boilers and admits there is an issue but does not know how to diagnose it. I had to pay $89 for this. Instead of having the right person come out, I had to to actively call again to get someone else to come out. The 2nd tech diagnosed the issue, but wants to charge me the same $89 that I already paid. - and quotes me $380 for the repair - and has to order the part. I agree and then call back the next day to confirm part is on order - and they tell me the charge is $1,015. I asked to speak to a manager to discuss, and no one is available and no one calls me back. I bought the replacement part from a supply where house (confirming it works with my make/model of boiler) and it cost me $165. I have had other scheduling issues with them as well. Don't use them!!!!!!!!"