Andrew was extremely knowledgeable and really spent time entering my questions and making great…read moresuggestions. I got the $79 diagnostic service and it was well worth it, letting me know that my air handler was fine but just had a bit of filter pieces in it, but my main AC condenser unit was on its last legs and I should be prepared. Great balance of knowledgeable but not pushy, I really felt he had my best interest at heart.

Very friendly, excellent service, and fixed the issue immediately after diagnosing the problem…read more They replaced a bad coil on the outdoor compressor contactor and rinsed the dirty outdoor unit coil. $415 for parts, labor. The diagnostic fee was $79 but they waive it if you're going to use them for repair. Would definitely patron them again!

I initially thought about taking off a star because John arrived outside of my appointment window,…read morea pet peeve of mine, but then I remembered a few things: he came on a Sunday, on less than a day's notice, Arlington is very far from Upper Marlboro, the appointment before me went over, which can happen to anyone, and most importantly, small businesses are the backbone of America. John was very polite and immediately told me my HVAC closet smelled because a mouse died in there. He also called a relative while at my place and on the way home to give me their suggestions on dealing with the smell, which has nothing to do with HVAC and is above and beyond in my opinion. Yes, I did have to pay the $100 fee to come out. I paid in cash to not have to pay the 10% processing fee. I was fine with paying this to have someone come out so quickly, and on a Sunday. Would call again. When my problem actually involves HVAC repair.

John is a true professional. Responsive and easy to work with. I Would refer him my friends…read more Thank you.

Prompt and professional service provided by thecowner of the company Nestor. located the problem…read moreimmediately and was repaired just as quickly. No upsell or replacement discussion occurred. I asked him to clean the filter and the bottom of the unit after he replaced the broken capacitor. And he quickly did so. All was done at a very reasonable cost. I highly recomnend Nestor and his company for and HVAC service you may require, Skip

This is my new go-to HVAC outfit. I have had nothing but good experiences! I had problems with…read morethe HVAC not working at a house I own and after another outfit failed (expensively) to fix it, Nestor came in and correctly diagnosed it as having a dirty outdoor condenser unit, aside from just being old. They cleaned it out and it worked for a year. Then it failed entirely and they gave me prompt emergency help despite it being the weekend. I had them replace it with a new heat pump version. Nestor gave me great knowledgeable advice about the options and how to navigate the 2025 change in the refrigerant regulations. Very competent and very competitive rates!

Response was supper fast and my home was back to a comfortable temp in no time. Gabe explained the…read moreprocess, was prompt, professional, and cost conscious. Thanks folks at Pro-Tech HVAC Home, Edie

Excellent service . Beyond expectations . I've known Chris for many years and found him to be…read moretrustworthy and helpful.

I had Bethany Air put in a new SMART thermostat in end November 2024. They were here 2-3 hours…read moretrying to get it to connect. They left with the SMART thermostat functioning but disconnected from the WiFi. I was finally able to connect it a couple days later to the WiFi. A few months later (April) I called the thermostat manufacturer due to an issue with my 4 year old furnace and the thermostat. I asked why it kept running my emergency heat more than my regular heat and my house was cold. They ran through troubleshooting with me and figured out that the thermostat was not wired correctly. The thermostat manufacturer stated the incorrect wiring caused the issue with the emergency heat running frequently. They suggested calling a HVAC repair to address the cold house. I called Bethany Air. The technician (1) came. He told me that I needed a transformer after spending a good 50 minutes in my attic and then assessing the heat pump. I asked about a surge protector and he also thought this a good idea. Both items were ordered. Other information was provided that possibly we had a power surge that caused the transformer to stop working in the furnace. I was also told the furnace would not run. The technician was here a long time. A different technician (2) came to put in the two parts a few days later. He went in the attic and came down about 5 minutes later and asked if we had turned on the heat. I stated no, it doesn't work, and I had not messed with the thermostat. I did note it was on though as the previous technician gave no recommendation to turn it off. He stated that a couple other parts had "burnt" and we "were lucky that the house didn't burn down". We discussed briefly the findings. I informed him that we were told the furnace wouldn't work. The previous technician (1) did not give any instruction to turn off the thermostat, to turn the breaker off to the furnace or heat pump, nor did he take any precautions to avoid this further damage (burnt parts) from happening. I called Bethany Air when he left. The receptionist took the information than stated the manager/owner would call me back soon. No callback was received from the manager/owner. Instead the technician (2) who had left called me and tried to change his initial assessment and downplay his findings significantly. The parts came in and a different technician (3) came. He made the repairs. He told my husband that all charges for all 3 calls would be in his invoice. I paid the invoice. Since then I have received an invoice a couple times after I paid the "all charges" invoice. We have reached out to the company 3 different days, speaking with the same receptionist. We are told the owner/manager will call us back that day, and have never received any callback. Email response to the invoice also got no response. I cannot recommend this company in good faith. However based upon other reviews, you may have a better experience.

We needed a new thermostat installed on a quasi-emergency basis. They got us scheduled for the…read morenext day. After contacting several companies, they offered the best price and quickest service. The technician who installed the thermostat was efficient and friendly and did the basic programming. I will consider them for our annual maintenance service, since our old service company closed shop.

I highly recommend Darrell for any HVAC needs. He recently inspected my system and provided…read moreoutstanding service. Darrell is incredibly knowledgeable and took the time to explain everything in simple terms.

Two appointments scheduled and twice Barstow cancelled at the last minute. I had to take leave for…read morethese appointments. That qualifies as horrible customer service.

David is great! Extremely responsive and handled the issue very quickly and gave us some tips for…read morefuture. Definitely saving his contact in my phone!

David carved out time to provide an estimate for a new AC unit the day after i called him. He was…read moreable to find a new unit available and get us on the schedule for installation within 1 week. I appreciated his honesty and his installation did a great job. Would definitely use him again, but hopefully i won't need a new unit for a long time.

Fantastic service! I'm a pretty handy guy. But I soon realized my kitchen sink backup in my new…read morecondo needed professional service. WL Staton gave me a same-day window between 2-4pm. Vince and Tyler showed up at 2:15pm. They came in, rooted out years of drain debris going down 30ft and left my kitchen cleaner than they found it. Professional. Courteous. Knowledgeable. One of the best service calls I have ever made.

HVAC inspection - ok. Who knows? Upselling - not so good…read moreEspecially since you're expected to sign up for Membership on the spot.

I contacted Bayside Heating & Cooling in Severna Park Maryland for an AC unit replacement quote…read more The owner Kevin McClain visited my home on May 21, 2026. The estimate I received included a full furnace replacement I never requested, totaling over $25,000. When I asked for a revised AC-only quote, Kevin declined via text message citing workload. No explanation was offered for why a simple quote revision could not be provided. Disappointing experience from a company with such a "strong" local reputation.

Beware. . . . These guys were going to charge me $480 a…read morepiece to swap out three working thermostats - that's $1440 total! I have the thermostats here - so that is just the installation price! Crazy! WAY, WAY overpriced. Pass. . . . .