DO NOT USE FROSTY…read more While it is true what others have said that the technician Terry was fantastic, the management at Frosty is not trustworthy. They low-balled an estimate when they had knowledge of the unit, the specific part needed, and the industry standard for labor. And when the job was completed in less than time than expected, the final invoice came back 70% higher than the high-end of the estimated range. The misleading initial estimate was either fraudulent in order to get the job, or incompetent. Terry should work for someone else. I would not trust Frosty.

I am so grateful we found this company. We have geothermal and have a service contract with Frosty…read moreRefrigeration. generally the unit is problem free. However,this morning we realized the house was not keeping cool. The thermostat told me to call for service. I called around 12:00 pm. Kyle arrived at 3 and was here 2 hours. He fixed it and we are cool! HIGHLY recommend!

I was having a problem with my 26 year old a/c. It stopped blowing cold air. Last summer i had…read morereplaced the capacitor and so i figured the compressor was overheating. I shut it off, cooled it down and she started working fine again, for a short period. Spin, rinse, repeat. I put my info on Yelp and Amanda called me within minutes. Nobody else has called as of 12 hours later. Amanda sent one of her techs, Brandon, to my house at 10:00 PM. He was very professional, answered our questions and fixed our problem on that hot muggy night. As it turns out, It was a faulty capacitor. Thank you!

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 had a heat emergency with my heat pump and they quickly came over and resolved the issue!read more

Service was on time, very thorough, and exactly what I needed. I joined their club which seems like…read morea good deal

Has some two jobs for us so far. Great and fast work! Fair price, friendly and thorough service…read more Highly recommended

From the owner: At AguirreSa LLC, we’re your one-stop experts for electrical, HVAC, and plumbing services across…read moreBaltimore City, Baltimore County, all of Maryland, and parts of Virginia and Pennsylvania. From home repairs to large commercial projects, our licensed team delivers fast, dependable, and high-quality work you can count on. We handle everything — from AC and heating installs to plumbing repairs, rewiring, lighting, and system upgrades — always focused on safety, efficiency, and long-term results.

We lost heat and it was cold. Daniel with Carroll mechanical came out quickly and assessed the…read moresituation on a Friday of a holiday weekend. He took the time to explain what was wrong and his process. He determined the problem and applied a solution that got our heat up and running again. Here's my real review. I will use them again. I feel like I now have an HVAC guy. Small business, local company, good friendly people, honest pricing. Thumbs up.

Josh came out to fix our HVAC and was very courteous and friendly. The company, Carroll Mechanical,…read more scheduled the appointment for the day after I called, which was impressive. Josh quickly replaced the igniter, and it came with a one-year warranty. Saved me 12k to replace it! definitely worth it. Highly, highly recommend !

Ricardo and his team should be teaching the class on customer service. He's an perfect example how…read moresmall family-owned businesses can outcompete larger organizations. This man will hustle and break his back to earn your business and build a relationship with his customers. He takes pride in his work. I cannot recommend this place enough. On a Friday afternoon, I reached out to ~5-7 vendors to assess a broken HVAC in a DC condo. Ricardo was able to come out IMMEDIATELY at 8PM on a Friday night. He did a quick dusting of the unit which hadn't been serviced in a while and even went to the roof as a part of his diagnosis. After sticking around for a couple hours trying to find the source of the problem, I was mentally preparing myself to pay a diagnosis and service fee, but there was no such thing. What signaled to me Ricardo was top notch was the fact that this man lives in Baltimore, easily a 50-minute commute from where I was in DC. He didn't leave until I was satisfied with his work until 930PM on a FRIDAY night. This type of service is difficult if not impossible to find. Ricardo patiently explained what the problem was, why I wouldn't have working AC after he would leave, and what my options were. He was very transparent with pricing, sent over a couple of quotes, and laid out what install schedules would look like depending on which manufacturer I went with. He and his team came in Tuesday and the install lasted about 7 hours. Fully working AC in less than 2 business days at a reasonable and competitive price. You cannot beat that.

Ricardo was quick to answer and to come out to assess my aircon issue…read more After a few discussion we agreed on a price I felt was fair and competitive and given the quality of his work later on, I am very satisfied with his service. Recommended!

I had a problem with my HVAC not heating my house correctly in the morning. I set the temperature…read moreat 65 during the night and 72 during the day. This problem was recurring. I had another company come look at the problem 2.5 weeks ago. I called them in the morning and the showed up a couple hours later. After looking at my HVAC, they diagnose the problem as poor air flow due to a dirty air filter. There was a fine white powder on the filter which made it hard to see the dirt. The white powder is a result of using a ultra sonic humidifier with tap water. They suggest to change the filter more often (every 30 days) and buy a different brand filter with a MERV 8 or 10 rating.

Quick and professional. They came right away after I call. Highly recommended for serviceread more

Eli provided duct cleaning, HVAC duct insulation, added air ionizers to 2 systems, fixed a broken…read morecondensation drain, and moved both of our heat pumps off of an rotted old platform to a new concrete pad. Was pleasant, reliable, professional, and fast.

We returned to our condo to find the A/C not working. Eli answered my call and was there within 15…read moreminutes. He had the parts on his truck and fixed the problem quickly.

Horizon Services is our plumbing, heating, and a/c service of choice. They helped us when there was…read morea blockage from our kitchen sink beyond our utility sink in our basement. H.S. had serviced our old heathing and a/c unit faithfully for years, providing suggestions to help extend its lifespan. When it came time to replace our old heating & a/c units, H.S. was the only company that we called. They listened to our wants and needs in the new unit, laid out a variety of units and cost and helped us to choose the one that best met our needs. H.S. goes out of their way to explain the process, regardless of the size of the job. Plus, they contact you when it is time to have your a/c & heating service. H.S. has wonderful staff regardless of the time that you call. We had a issue occur at 1 a.m., so we called H.S. to have a technician come out. The employee answered the phone "Its a great day at Horizon Services. How can I help you?" It was 1 a.m. and he was so friendly and understanding. This company knows how to listen to customers. It appears to me that they believe in the 80/20 rule. Listen 80% and talk 20%. We will be their customers for life. We have recommended H.S. to our family and friends.

I'm writing this review because of the price point that Horizon charged me for replacing my garbage…read moredisposal under my sink. I decided to buy the unit myself from Home Depot hoping to save some money. I paid $199 for the replacement unit. However, when the (nice/polite) technician arrived he charged $407 just to remove the old unit and install the new one, supposedly including the military discount and senior discount. If I had known this, I would've gone on you tube and done it myself. It took him about 35 minutes to complete the job, so that's basically $700/hr. That's disgusting and very unfair. Thats more than I ever made per hour and I'm a medical professional; saving lives every shift. Never again. Either shop around or learn the technique on you tube and do it yourself.

I scheduled for them to get an estimate and they came. After the estimate they say I have to pay…read morefor it. They were not upfront about that cost. They took several days longer to come and do the work than they originally said. Then when I ask for the breakdown of the price they would not disclose how much the part cost. I recommend you look elsewhere for HVAC work.

From the owner: Brooks Heating & Cooling delivers over 20 years experience servicing all makes and models of…read moreresidential HVAC systems.