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!

Third review and third time satisfied customer. After having Andrew come out to maintainance our…read moreheating system, it stopped working overnight during the snowstorm. The owner Scott called me to assure that someone would come back out...sending our Andrew again before 12. All was explained to me amd fixed as well as suggestions made for the future. Thank you again for making customers your priority always!

Absolutely thrilled by the professionalism and service provided by Scott…read more I thought the rating was too good to be true, but I was proved wrong. I appreciate the communication, timeliness and cost for services(very reasonable). Will be recommending and returning for annual maintenance!

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.

All the reviews you see here are five-star ratings, but they are misleading. In reality, Ricardo is…read morerude, unprofessional, and does not know how to communicate properly with clients.

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

I highly recommend this business whenever you have ac issues! After getting a couple of scamming…read morebusinesses only interested in taking your money, and not helping, we found MD Heating and Cooling in Ellicott City. They were very professional and experienced and fixed the issue quickly. Thank you, Debbie.

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.

I've been a customer for over 9 years, had total hvac installed, multiple plumbing work done…read moreincluding tankless water heater. I've had a service plan throughout. But lately they have been 1. difficult to contact. 2. When I do I am placed on an outsourced team. 3. They are disorganized and I get different responses from them each time. 4. The recent incident is they were supposed to do my heater maintenance on November 7. They never showed up. When I called they claimed they called multiple times and left messages. ( btw this has happened before) normally when they are coming to service they send an email and text telling me how long and who is coming, received neither. They apologized and said our next appointment was in March!! I called back they (as usual) asked for my phone which I verified and as we were speaking the phone went silent ( it hung up) 5. I still haven't received a call back.

I'm alerting potential customers to Horizon's Comfort 360 service. I called today to schedule AC…read moreservice. The representative told me the first available service was in September. Today is April 23. That is not a priority service. I feel this is deceptive and a disappointment. It's a money maker, not a way to provide great customer service. I will be using someone else who can service my AC THIS season.