I had a very good experience with Blue Dot of Maryland yesterday…read more They replaced my heat pump and did it competently and efficiently. I like them and would recommend them to others.

Extremely disappointed with Blue Dot…read more About four years ago, I paid roughly $18,000 for a brand-new HVAC system expecting reliability and quality service. Instead, I've dealt with recurring issues over the years, including multiple problems within the last two weeks. Most recently, my AC stopped cooling properly during extremely hot weather. I scheduled service and was given a 2-6 PM arrival window for 5/20/26. No one showed up. I called multiple times that evening and was repeatedly told the issue was being "escalated" and that dispatch or management would contact me. No one ever did. I called again the this morning. The representative could see all prior escalations but could not explain why no technician showed up or why no supervisor contacted me. I was again promised service between 2-6 PM today. Again, no technician arrived. Meanwhile, my system began freezing over, with visible ice/frost on the indoor lines and outdoor unit. I ultimately had to shut the system down entirely to avoid possible further damage. I called once more and was told the local branch and management had already gone home for the evening, so no one could provide answers or assistance. At this point, this is heading into a third day with no service, no management follow-up, and no resolution. I understand HVAC companies get busy during extreme weather, but the lack of communication, accountability, and follow-through has been unacceptable, especially after investing so much money into a system that has had recurring problems since installation.

Hired Wayne to replace my AC/Heat pump unit. The old unit had issues, Wayne's recommendation was to…read morereplace the unit. That was Friday. He returned on Wednesday and had the new unit installed and running in about 4 hours. I would recommend Wayne for any HVAC work.

Wayne is the only company I will use at my house. Had three other companies provide me quotes on a…read morenew AC and Furnace system for my house, Wayne was the only one who provided not only the best system, but also the best value for the money. His work and crew was top notch, he took the time to walk me through the whole system, things to look out for in the future. Did not try to upsell me on things I didn't need like the other three prior companies and took his time to do the job right and clean up after himself leaving my home looking better than it was before. Wayne is the man and I can't thank him enough he will get all my HVAC work moving forward!

we have had this company come out 4 times for the same issue. our AC would randomly start pumping…read moreHOT air. They cleaned the unit, said it was fixed, and it wasn't. They replaced a fuse, said it was fixed, and it wasn't. Beat on the unit, said it was fixed, and it wasn't. Finally come to the conclusion that it was a bad circuit board. The company said they "ordered it", TWO WEEKS later we called them back & are Told they ordered the wrong part. say they will be there the next day with the correct part, never show. Call and get mocked by the person on the phone & treated like a 3 year old but they will "be there tomorrow". Tomorrow comes, no one shows. We were completely ghosted by this company after shelling out hundreds of dollars & over 1k of energy costs for us. DO NOT USE THIS COMPANY. We've already had another company out & the problem completely fixed within 48hrs. told it was a "simple fix". The owner is a rude misogynist with zero accountability.

Our Home AC sstpped working. I called Mr Mullhausen and he came out and found the issue right off…read more Same was repaired and we were up and running within an hour. He was very professional and friendly. I highly recommend him if you have any issues with your AC. He is a diamond in the rough when dealing with certain companies.

1 star is actually very generous. DO NOT USE THIS COMPANY. My young daughter and her family woke…read moreup to no heat on 1/21/2026. She called this company and had a tech come out that evening. He explained to her how her unit is old and basically fried. NO CHOICE BUT TO REPLACE IT for 14,000! With impending snow she almost got taken advantage of. Thank GOD she called another company for a 2nd opinion and it was fixed in less than an hr for under 400$. Taking advantage of anyone is NOT ok.

DO NOT TRUST COMPANY! Months ago we decided to replace our central air. This compay was nice but…read morenothing more than a used car salesman selling you something. Not long after we got it, thinking we now had peace of mind where the ac wouldn't conk out in a heatwave, it started making a noise. We turned it off to be safe, and luckily it wasn't too hot. Before we could have someone come check, it got hot, so we turned it back on. The noise had stopped. Canceled the appointment. Weeks later there was freon leaking down the side of the basement unit and on the floor. Someone came out to look and said we had to keep it off until they got the new coil (this one was too big apparently). A week without ac, my mother is a senior and I'm in a hospital bed with progressive MS and can't take the heat. We had to have someone come over and bring the attic window ac down to our dining room and run it 24/7 for days. Also had to cut some wood to keep it from bending the window sill. The guy finally come out, says he had the wrong coil, had to run and get the other at the warehouse place. Put it in and said we couldn't have the vent down there now but we needed one so the basement got some air. He used electrical tape to make a vent. Weeks later there was a rattling noise in the living room vent we never heard prior and kept me awake all night but it would stop and go. This time we called BGE. Guy comes out and says he was shocked it cost so much and they could've did the furnace too for that price. He asked if we had a permit and inspection. We said the guy said we didn't need one. Bge guy said there should've been cap locks outside for safety but there were screws instead. We asked the hvac company, he said he didn't see that in the pic he had. Either he was lying or the guy who did the job lied. We had to take a pic and send it for him to even send someone come do it. He came out to look first and said the vent was unprofessional and he had someone fix that as well. By now we're wondering how many other issues were there we didn't know about. Now we called and emailed saying we heard you need a permit and inspection. He said he didn't. We called the permit place and several people said he wasn't even registered and he DOES need a permit. Again he said no and asked for the name and number of who I spoke to. I texted him. He didn't reply. Called permit office again and they called the guy and said he Ned's to get it done. That was days ago. Still not a word from company. MONTHS now, phone calls, emails, texts and they denied needing a permit every time. Now the owner told the permit chief he didn't know he needed one, even though we've been telling him all this time! The company did issue a $300 refund to cover our electric bill for having ro run our window ac for a week. But all these other issues?? The phone calls and emails and appointments, etc. The fact we paid so much and the job wasn't even done right. The fact they lie about it. Do not trust this company! EDIT 14 Sep: Never bothered to tell us an inspection was finally set up. We happened to talk to the permit depth and they said it was scheduled for the next day! Inspector denied the permit for now because the box (fuses?) outside is jammed and not property done so the has to have the company fix it so he can make sure everything in it is correct. Of course nobody could address this (meetings one day, out the next day). More set backs!

My plumber had retired after 30 years of taking care of our needs…read more Searched Yelp and found Hamilton plumbing. Local business with good reviews. I called and was told the plumber would call me back. Vernon called me back within 2 hours we set up for him to come the next day. He showed up as promised and replaced a kitchen faucet and reset a toilet that the flange had rusted out. Very reasonably priced. I had a water heater that was beyond it's expiration date. Set up a date for the following week. Vernon called me on Tuesday morning as promised. He was at my house on time. Had everything he needed for the job and did a great job. In my younger day I would have done this work myself. Nice to see a professional show up on time. Do quality work at a reasonable price. I now have a a new plumber for the next 30 years. Thanks Vernon.

Hamilton did an amazing job the first couple of times we called them. We never had concerns about…read moretheir work. In fact, we were so pleased with it that we purchased the service contract. We understood that we were working with a small family-owned company that did not operate 24/7, but after many calls over the course of a year, our calls have not been returned. Therefore, we were not able to use our service contract. Considering the great work they did when they did respond, this has been very disappointing.

After our initial service call about our gas (propane) furnace, I would have given them 5 stars…read more The same tech came back to "fix" it but unfortunately we needed more parts that required a lot more money. Best solution according to him was a new furnace. The kicker is, he left our gas OFF to the furnace! We're out $800. Elder abuse in the making.

From the owner: You should be comfortable in your home, no matter the season. Smart Energy Systems can make sure…read moreyou are by taking care of any heating and cooling services you need. An HVAC contractor will come to your location, assess the problem and come up with a solution that works.

Had been looking for a new HVAC professional after the one we had been using retired. I saw several…read morepeople recommended Eco-Cool on another local persons request for HVAC recommendations as well as several other companies. I researched reviews on all and Eco-Cool was my initial top choice after the research. I called the office to schedule a routine servicing of our system on Friday, I spoke with Amy at the office, she offered several options for services including a simple one time service or an annual program. We were able to schedule a tech to come out on Tuesday morning. Our Tech, Craig, was prompt, courteous, and professional even through the multiple questions I asked. He took a look at our system and the area of concern we had and he gave us the news we were anticipating (that our system is running but might not have much time left in it....it's 26years old) he offered to have quote for replacement drawn up if we wanted. (I did) he left us set up for success and he told us his goal was to keep us running into springtime at least....we appreciated that! After he departed, I called Amy again to arrange payment for today. She was kind and professional and let us know she would have a quote to us by the end of the week and even provided insight to what pricing is doing now and anticipated to be after the new year so we could be able to make the decisions best for our family. We appreciated the prompt, professional, expert care we have received in our first few interactions with Eco-Cool and are looking forward to remaining customers for a long time!

Called about 12pm on a Friday and Stephen Jr. was here before 2pm. He was quick to diagnose my…read morecapacitor issue and changed it out for me. He also answered all my damper questions and got the air flowing more evenly throughout the house. He was very respectful, not only with wearing a mask, but also making sure he left everything as it was, closing doors behind him, making sure exterior doors were locked and gates were closed.

Thank you to Larry Krause , Thank you so much for your help…read more. You were so & fast ! Larry came to my home on a Sunday & helped fix my garbage disposal. https://krausecompanies.com

Krause Companies provides many services besides heating and air conditioning. We contracted them to…read morecomplete a bathroom install. The work took a little longer than anticipated but they were gracious and understanding when we made changes. They are friendly and hard working. I would recommend them for any of your construction needs.