Very quick to setup an appointment and reasonable price. The guys knew what they were doing and got…read moreboth air ducts and dry vent cleaned out quickly.

Efficient and prompt. They did recommend the extra disinfectant for mold based on what they found…read more I didn't see tons of photos of the results (comparing before and after), but overall happy with the service.

Excellent job. Professional and the price was of value. The HVAC cleaning made an almost immediate…read moredifference in the air quality. It was easy communicating to set up the service and was able to have the service within days of calling to make the appointment. Highly recommend.

Excellent experience. It sucks to find mold/mildew but Val responded quickly to my initial call and…read morewere able to remediate the problem within a short time. Val and his team were professional, detail-oriented and courteous. They explained the process, gave me a reasonable price and did the work with minimal disruption. Good communication the whole time. Would definitely recommend.

Great company to work with and a great price! Greg, the technician was very knowledgeable and…read moreworked hard to clear out our system which had not been done in years! Will definitely use again in the future!

Greg did a fabulous job for us. Our ducts are 40 years old and were never cleaned. Yes there was…read moresome black mold discovered that was conscientiously removed as an extra. Well worth the money to know our air is clean. We are very happy and will recommend them to our friends and family. For the cautious folks these reviews are real. Thank you Yelp. This is a great find.

I've had a technician come out for the AC and another tech for the heater and I can tell you these…read moreguys are knowledgeable and willing to share their information in an effort to educate the customer ! I feel comfortable recommending them.

The guy came on time, very pleasant and even though I wasn't expecting all the things that were…read morewrong. He did get my AC back on and it's "knock on wood" still on and creating cold air.

I called on a Friday after being recommended here. My central air conditioning unit in my home had…read morebeen running constantly and often would be higher than what it was set at. I was booked for that Monday! The day of my appointment, I was called several hours before my appointment to say they had an earlier than expected time slot and wanted to know if they could come now. Unfortunately I couldn't do earlier than scheduled but appreciated them asking! My time slot was 4-6 pm. They showed up at 4:05! Wow! I can't tell you how many times companies give time slots and show up hours AFTER the time frame. But not Markool! They are on it! Jorge and Jose were my technicians. They were both very friendly and went right to diagnosing the issue. After about 30 minutes, they figured out I needed Freon. I asked the pricing and they had a tablet to look up the pricing right away. If you need Freon be warned it's expensive! Not this company's fault though it seems to be commonly expensive when I looked online out of curiosity. These two technicians were knowledgeable and explained everything. They were super polite as well. They emailed me my invoice with pictures of everything they did today. I highly recommend Markool for your cooking needs!

My AC went out during the hottest week of the year. They just had a cancellation for the next day…read moreand fit me in late afternoon time frame. After 2 hours of work, they got it running and my temps went from 80-83 inside to a much cooler 73 degrees. They explained that my entire unit needed to be replaced. After a wait of several days they were back yesterday and replace my heat pump after they had to remove my hot water heater, which is in front of the heat pump. Today I am sitting at a very comfortable 69 degrees...loving it! Markool is the best!

Fast service, nice people, good quality…read more I booked them for a dryer vent cleaning service and they did a good job and were quick.

Made contact, scheduled the chimney cleaning. I get a call later from "Four Seasons," saying the…read morecompany outsourced the job to them because they couldn't make it. Ok? I just want the job done so with the same price agreement I give the job to these guys. They show up, and the tech cannot get the fireplace vent door open so I get another call from the wife asking me how to open the door. Then, they tell me that it's $149 plus $20 per foot of the chimney. That's not what the stated cost was, and the supervisor says "well we charge what we charge." I told him to leave. This is bad faith business, and it wasted a truckload of my time today. This is not how to win projects, and you should not win anymore bids if this is how you choose to do business.

Last weekend's heavy wind and rainstorms left us with an unpleasant surprise...I was walking…read moredownstairs in socks when I suddenly felt my feet getting wet. As I took another step, my foot sank into the carpet, leaving behind a soggy footprint. One more step, and I could hear water sloshing beneath the carpet. Ugh, our basement was leaking! I searched for help online and found AdvantaClean of Frederick. After reading their excellent reviews, I gave them a call--and I'm so glad I did. I spoke with the owner, Dave, and it was clear that he knew exactly what he was doing. He was calm, knowledgeable, and reassuring, which helped us feel less overwhelmed. Dave got us on the schedule right away, which was such a relief. He reviewed the basement, provided us with a reasonably-priced quote and we gave him our business. He and his team arrived promptly and got right to work. Using specialized equipment, they were able to pinpoint the source of the leak. They carefully removed our water-damaged sofa along with several bags of damaged items, and they did it all with care and efficiency. They then sealed off the affected area with plastic sheeting and neatly removed the damaged drywall. Dave set up industrial fans and a dehumidifier to dry everything out over the course of several days, staying in communication with us the entire time and periodically stopping by to monitor progress. Dave is not only professional, but also has a good sense of humor and is easy to talk to. He was quick to respond to texts and answered all my questions clearly and thoroughly. If you ever find yourself in the stressful position of dealing with a water-damaged basement, I can't recommend Dave and AdvantaClean of Frederick highly enough. They truly went above and beyond.

We needed mold remediation and AdvantaClean exceeded expectations. They responded immediately, the…read morecrew was highly competent and very friendly, even under trying circumstances. We came to them after an unpleasant experience with WeInspect, and AdvantaClean restored our faith in a service and value oriented company. We could not have asked for better service, a more thorough cleaning job, or a more pleasant crew to work with. We can't say enough good things about this company!

Nice work He try to help me lots to make my heating system…read morework But he did nice cleaning all the vant

A very bad experience. Not even for free would I use this vendor. Tries to scare and upsell, shows…read moreme a stain that likely isn't mold and says it's black mold. Avoid. Update in response to his response: I guess you didn't know, but I have a Ring camera recording of our conversation. You are a liar and I have the video to prove it. It's actually you who yanked away your phone as I was looking at the charges because you handed me your phone. And there was zero foul language. The reason I didn't pay is because, after yanking your phone from my hands, you just walked out. Let me know if I should post the video somewhere for everyone to see it.

On time, every time. Did what they said they would do with photo and technical documentation…read more Connected ducts to new outside attic vents, insulated attic, installed whole house exhaust fan, cleaned up excellently. Good value. Professional.

I hired Atlas Home Energy Solutions and I thought they did a good job except for the insulation. I…read morethink they sub contract this out and the guys who did this did not do a good job. All my ceiling lights were pushed out and they came a couple of days later and pushed them back. From that time onwards the lights in the dining room and kitchen would flicker and finally go out completely. Initially we thought it would right itself but it continued to do this and I tried contacting them, twice, without any response. I will try one more time and then if I do not hear from them, I will bring down the stars to one or zero if I can do it.

I was having a fair amount of dust accumulating on my floors, and thought that I should have a duct…read morecleaning. I spoke with Mike at Air Repair, and he came over (on time) a couple of days later. He saw that my house was relatively new, and asked me when it was built (Dec 2019 - 4 years ago). He took a look at the ducts in the furnace room and said that cleaning the ducts would not help as they are already clean. He recommended changing the air filter a bit more frequently and said that the dust was probably normal. Next, I asked him to look at our dryer vent/tube. He said he would need to come back for that, and he did - on time. Wow! He quickly and efficiently cleared out the dryer tube, vent, and dryer filter. He showed me before and after pictures. He also advised me on how to clean the dryer more efficiently with a long bristle brush and flat vacuum hose nozzle. Very friendly, polite, on-time, and reasonably priced. No pressure, just good consultative advice and efficient, effective service. Call him, he will help you. Thanks, Mike!!

I reached out to Mike at Air-Repair for help with installing a new dryer exhaust vent as our old…read moreone was very clogged and corroded. Mike came out on time, gave a very reasonable price, and got the job done quickly and cleanly. He was very communicative about what he'd done and gave helpful recommendations for cleaning it moving forward. I would definitely recommend Mike and Air-Repair again.