Mark D.
Service Technician
* Total number of reviews and star-ratings are based on
data collected during the time period Blue Dot Services of Maryland has been using the ReviewBuzz system
and may not directly match the data found on each public review site.
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Chris is a great tech and always does a great job. He is very honest and doesn’t stall around. My last tech concerned me as he took way to long on the furnace on a 6month old unit. We have used Blue Dot for years. Now I have warranty work needing done, we will see how that goes. (See More)
10/24/2019 |
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On 10/1 we were scheduled for our matience check-up between 8-12'. At 12:30 I called and was told you were very busy and at 3:30 given the same reply. Mark finally arrived at 6:00. He was very curteous and efficient. We received no follow up calls from you regarding the delay. We also had to stay home all day waiting for the technian. We have been a customer for over 20 years and will continue to do so as you have always provided excellent service. We were very disappointed in our latest experience
Charlotte Brown (See More)
10/03/2019 |
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A very knowledgeable service professional from Blue Dot systematically diagnosed the failure in the A/C portion of our heat pump today. He was both exceptionally friendly and detailed in explaining everything he was testing; which we appreciated - as we learned a great deal. He let us follow along as he checked the components - and we were there when he found the seriously damaged electrical parts (burned wiring, etc). Since our system was very old - and I asked for recommendation to replace - rather than repair the old system. He explained in detail the exact system that he had in his own home - and why he chose his system. He then listed in detail the parts that failed in my old system - and contacted another very nice Blue Dot person - who came and provided us a detailed description of a replacement system they could provide - and an estimate of the cost. He was also very cordial, and knowledgeable - and answered all our many questions. My wife and I were impressed and more than satisfied with the whole experience with Mark - and his colleague - so we decided the purchase the new system which is scheduled to be installed 4 days from now. We appreciate dealing with such competent and very pleasant individuals... (See More)
7/28/2019 |
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Mark is friendly and knowledgeable. (See More)
5/17/2018 |
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Mark explained and showed me everything he was replacing and what was going to be needed. (See More)
4/13/2018 |
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Very nice person, nice job (See More)
4/09/2018 |
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would never use blue dot ever again and letting everyone know by word of mouth and social media how bad this company is. (See More)
2/19/2018 |
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(no comment) (See More)
1/28/2018 |
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(no comment) (See More)
10/29/2017 |
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(no comment) (See More)
10/28/2017 |
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The only point I didn't give you five stars was on scheduling, a five hour window is kind of tough making sure that you're here for that amount of time, but I understand how it can be difficult to nail things down.
The call with a heads up as the technician was in route to our home was a big help. (See More)
7/06/2017 |
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From Danielle in the office to Mark's expertise and advice to keeping my system in good order and to avoid a service call for the same reason, everything was top notch and professional. (See More)
7/06/2017 |
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Had a wonderful technician service my air conditioning today! He answered all of my questions and he took the time to explain . He put on booties when he entered my house and was neat and efficient and cleaned up after his services. Wow what more can I say! (See More)
5/10/2017 |
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Mark was very professional and polite. He explained everything he needed to do. Completed the work in a timely fashion. Did a great job. (See More)
11/11/2016 |
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Mark Daisy was wonderful from start to finish with our A/C repair. He was polite, on time and extremely knowledgeable about what was needed to repair the A/C. After some service problems in the past, we feel very pleased to have discovered Mark. We are hoping to keep him for our ongoing service needs. Many thanks, Mark, the A/C is working great, considering it's old age. Paige and Maggie (See More)
9/21/2016 |
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My Mom and I cannot thank service tech,Mark Daisy, enough for his recent repair of our very old A/C system. Mark's knowledge, skill, punctuality. patience. consideration and his total honesty helped us to make the best decision on repairing our A/C. After having multiple problems w/ Blue Dot's installation and repair services in the past, Mark has helped us to regain our trust in Blue Dot. We recommend Mark very highly and hope he can be our regular service tech. (See More)
9/20/2016 |
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Mark Daisey was GREAT! (See More)
9/16/2016 |
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We cannot say enough excellent things about Mark. He showed up on time , he was VERY pleasant and he knew his trade . He went through our new Carrier heat pump system giving it a checkup which was included in our purchased . Mark explained everything he was doing and gave up great maintenance tips . We will be asking for Mark in the future . Thank You SOOOOOOOOOOOOOOOOO much Mark. (See More)
9/16/2016 |
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Mark D. Was professional, knowledgeable and efficient in his work. He educated me as he was completing the repair and verified that the problem needed to addressed further. HE is a wonderful representative of your company and should be acknowledged for the work that he did. SADLY, NO MANADER OR REPRESENTATIVE OF BLUE DOT EVER CONTACTED ME. VERY DISAPPOINTED AND FRUSTRATED. You are lucky to have in the field reps. like Mark. (See More)
8/09/2016 |
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Awesome (See More)
8/07/2016 |
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Awesome! (See More)
8/07/2016 |
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The tech did not seem pleasant. He did not speak right away. He seem like he did not want to be in the area where the home was located. He seem like he was agitated. My tenant also felt that way about his presence. I called to reschedule for yesterday no one called or showed up for the job. (See More)
6/27/2016 |
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This rating pertains to Mark Daisey as a service tech, only. It does not reflect entirely on Blue dot, with whom I've had a very experience otherwise.
As far as Mark's service went, that was quite underwhelming. A few data should explain my rating better than all other considerations:
1. Duration of install: 5+ hours
2. Failed to properly select type of equipment in the new thermostat (i.e., selected standard, instead of high-efficiency furnace and 1 stage instead of 2 stages + 1 AC stage instead of 2 AC stages).
3. Failed to properly wire humidifier (I corrected the issue myself when I noticed it wasn't working) by not providing a common wire to the valve relay.
4. Failed to run the diagnostics for the return and discharge temperature probes and reversed their definition in the thermostat, causing negative delta T's to be reported.
5. Failed to run the "installer tests" on the system he installed and left the premises with an improperly function of the equipment control system.
During the whole install demonstrated ample hesitation, lack of confidence and had lots and lots of comments about how unreliable the wireless systems are, about how "they" (I guess, that means Blue Dot?) are always skeptical of installing wireless-reliant system because of the many signals mixing around the houses, i.e., he was pretty much preparing the field for a downright failure of his work. He managed to squeeze by and get off the door with a system that was still running somewhat. But I had to spend the next 4 days troubleshooting and fixing what he either didn't do or did do but was downright wrong.
During the whole operation, Mark proved only a superficial understanding of more advanced/sophisticated/modern control systems, a remarkable lack of technological literacy (at some point he was asking me if I connected the internet gateway to the USB port !?!? that gateway does not have an USB connection; only ethernet, as that's the only way one connects to a wired network / router / switch) and - in general - a rather averse attitude towards anything more than (very) basic HVAC stuff.
Extremely strong contrast to the very professional and capable team that initially installed my system. (See More)
2/27/2016 |
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As always, we received EXCELLENT customer service from Blue Dot! Service Tech, Mark Daisy, gave our system its spring check up. He explained everything thoroughly and left us with peace of mind! Thanks, Mark..we'll see you in the fall! (See More)
5/11/2015 |
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Mark Daisey did an outstanding job working with us getting our heater fixed. His workmanship was excellent as well as his knowledge. A true professional at his job. I would highly recommend him to any of my friends. (See More)
3/03/2015 |
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Mark Daisy is a very intelligent technician and a fine representative of what blue dot should have in all there technicians. He has a good rapport with his customers and cares that he does the job right the first time.
Thanks Mike (See More)
2/25/2015 |
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Mark is a very knowledgeable and responsible technician. He did a great job of servicing my system and explaining everything to me. (See More)
1/26/2015 |
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Great service, clean, professional and fast. Highly recommended (See More)
1/15/2015 |
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Were on time and courteous , cleaned up and checked everything out before leaving. (See More)
10/31/2014 |
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Mark Daisey did a great job on our furnace. It was the best cleaning job ever done. Hope to get him again. (See More)
10/31/2014 |
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Mark did an outstanding job of evaluating my Carrier heat pump/ AC unit of 14 yrs - I had it install in June, 2000. He was thorough, showed me, & listed all of his concerns of my system. Afterwards he presented his evaluation with possible choices. Mark was professional in every respect and didn't try to sell/ dupe me into something I didn't need. Just lots of food to way and contrast - it is a 14 yr old system with some signs of age of which I am pondering my options. But Mark as a tech. I stand behind! Thank-you, Mark. Sincerely, Kurt (See More)
8/11/2014 |
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Mark Daisey diagnosed my a/c problem professionally and expeditiously in blazing hot weather and at the end of ,what was probably , an incredibly busy day. I want to thank Mark and the entire BlueDot team for their customer service and expertise. (See More)
6/30/2014 |
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Great Job, Mark!!!! (See More)
6/25/2014 |
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Mr. Daisey was very professional and knowledgeable. He was prompt and got right to work. He answered all of my questions and gave me information on my humidifier. He left suggestions on how to make my cooling system work more efficiently. (See More)
6/13/2014 |
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Thorough examination and estimate of repairs to the central air unit. Mark was clear and concise about every aspect of the unit. We are very comfortable working with him and would do business with him and Blue Dot in the future. (See More)
5/29/2014 |
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I've been a customer for several years, and Mark D is the best technician ever. Next time the HVAC system needs semi-annual servicing or maintenance, I'm going to request him. He explained everything to me, made suggestions, and answered my questions about adding equipment in the near future. Competant, honest and straightforward. Too bad more companies (and technicians) aren't like that... (See More)
5/13/2014 |
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Honest and very competent. (See More)
5/11/2014 |
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My service tech came today, very knowledgeable, pointed out what I have been doing correctly and showed me a couple of items that I needed to do occasionally to take care of my equipment. I highly recommend Blue Dot for heating and a/c work. (See More)
4/30/2014 |
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Mark D was very professional, thorough and personable in performing maintenance on 3 residential HVAC Systems. (See More)
4/25/2014 |
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On time professional service (See More)
4/22/2014 |
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I trust Blue Dot and when Mark recommended a dehumidifier for my basement, I went ahead and had him install it, along with a couple of surge suppressors. He explained what he was doing and showed me features of the unit. The installation went very smoothly and the area was cleaned up very nicely. Several times he reminded me to give him a call if I had any questions. (See More)
4/18/2014 |
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Mark D. was very knowledgeable about the air conditioning unit being serviced and explained everything he did. He did a very good job. (See More)
4/10/2014 |
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Prompt and efficient installation of replacement air conditioner. (See More)
4/10/2014 |
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Mark Daisey did a professional job in an effective and efficient manner. (See More)
3/31/2014 |
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good job (See More)
3/17/2014 |
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Mark came to check out our 13 year old furnace. He was very frank in sharing his thoughts and concerns over carbon monoxide leakage and what our options were, namely, to repair or replace. He was courteous and answered all our questions without appearing to be in a rush. Thank you Mark. I hope you see this. (See More)
2/16/2014 |
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Smart and accurate, took time to explain the issue and take care of any problems. (See More)
2/10/2014 |
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Mark was thorough and explained what he felt needed to be done to our system to ensure continued comfort. (See More)
9/19/2013 |
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Mark D was our service rep and he was great. He explained everything and was very professional. He fixed one unit and checked and cleaned the others. I will definitely recommend them and use them again in the future.
Thanks again,
Ken M (See More)
5/29/2013 |
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Mark from Blue Dot came out and quickly diagnosed the issues with our air conditioning. Within a short period of time and after answering all the questions I had, Mark completed the repairs and had us back in service. An outstanding job by Blue Dot and a great representative for your company! (See More)
5/28/2013 |
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Mark did a great job, answered all my questions and told me everything he was doing in full detail. NICE GUY (See More)
3/29/2013 |
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