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!

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!

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.

james B. He came in very knowledgeable assess the situation could have overcharged me (stuck…read morestraight to the fact) but told me exactly why my A/C was not working and what was working. I have full trust in Horizon and James.

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 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

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 !

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

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.

You can't go wrong hiring JD! Great experience and went the extra mile on a Saturday to fix our HVACread more

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.

This was kind of a nightmare experience for me. Our kitchen sink became clogged, and we called…read morethese guys in to take a look at it. We got a few estimates and theirs was the lowest, and the man I spoke to on the phone was extremely friendly and nice. When their workers got to our house, he spent a lot of time talking about how the pipes under our sink were installed poorly (to be fair, they definitely were). I told them that we were aware of that, but for right now we didn't have the money to re-pipe the whole thing and just wanted to unclog the drain. He said ok and started trying to unscrew the pipes. One of them broke (may or may not have been their fault), and he goes back to saying we should re-do the whole system. I asked how much it would be, and he said it would be several hundred dollars, so I again said no, and that I just wanted the drain unclogged. He said he'd have to get rid of the broken pipe, which I understand, but the next thing I know, they're down there with a sawzall and cutting out every piece of pipe under the sink. In a few seconds, there was nothing left under there at all! I was extremely upset, but the man just kept saying that it would have had to be done anyway, blah blah blah... I was so stunned I didn't even know what to say, besides "I already told you, I can't afford it!" So he said ok and got ready to leave, but then said "well, I'd hate for you to have to pay the fee for us to come out here without getting anything out of it, why don't we snake your drain anyway?" I said ok, and they did, but then admitted that they couldn't test whether or not it had worked since they had CUT OUT ALL THE PIPES. Then, they had the audacity to charge me more than I was quoted, for "extra work"-- I'm assuming the two seconds it took to cut out all my pipes. I did eventually get some (not all) of that money back, but really this was the worst experience I've ever had with a plumber. The only good that came of it was that, as I burst into tears on reading the bill, the plumber sighed and admitted that if we went to a hardware store we should be able to do the re-piping ourselves, which we did, though it took all weekend. A few final things: the owners (of which there are several--the plumber talked to at least 3 of them) seem to hire out contractors, and there didn't seem to be much love between them and the contractors. Overall, I would not recommend these guys at all.

I have used this company 3 times now and have nothing but good things to say. I had them install a…read moreshower a few years ago. They had the best price, did the work on time and did a great job. I called them yesterday with a stopped up kitchen sink and they were here this morning and done in an hour. Very professional.