Get matched with top central humidifier installers and replacers in Knoxville, MD

"Needing a new HVAC is never fun. I had 4 companies come out to do estimates because of the cost involved. Presidential knew what they were talking about, did't try to upsell items I didn't want or need, and handled themselves like complete pros. The system was replaced in a day. They explained everything thoroughly. They cleaned up beautifully. The AC is working great. In my opinion, they are A++++"

"Happy Holidays all! Please use my Holtzople (H) review to help you address your HVAC needs! Last summer, my Trane AC unit failed. Corey W (H) was the tech that came out to the house and troubleshooted/resolved the problem (leaking refrigerant). He also advised on probability of future repairs. Sadly, the unit performed well for only a short time before failing. It was time to consider my options. Repairs were becoming more frequent and costly. Tyler (H System Designer) visited and walked around my house inspecting my current HVAC system. We discussed repairing or replacing my ailing AC unit. He recommended replacing with a split ductless system and emailed a quote for 1. Enhanced Mitsubishi hyper heat mini split system (system) 2. Favorable financing options - low interest rates and affordable monthly payments. The install took a week. H’s crew arrived each morning, respected my property, and worked as a team to carefully install the new system. With gratitude, John"

"The whole house could hear the vibration when our two year old Tran xv20i heat pump was at 67% work load. It seems the issue started from day one it was installed. Tried to reach out the installer but they went under. In June, I called McCrea. Mark Dzbynski came over, carefully checked everything and then concluded that refrigerant was not charged to the correct capacity. He explained that our system line is longer than usually and additional refrigerant is needed to compensate the length. He carefully calculated and addded the correct amount based on the temperate & length. From June and Oct, the vigration never came back. No one can tell when the system is on because it works so quietly. I really appraicate the work done by Mark and his work ethinics. Very pleased!"

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we had a leak problem and the tech came and looked over our equipment, fixed the problem and left. It cost us nothing and we have had their home heating service contracts for over 20 years.  They have NEVER ONCE not shown up or not helped and in the two furnace emergencies we had--they were here with in 1hr. 

We are very happy.

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"The installation crew left work area clean. Installation was very nice"

"One word - AWESOME! From initial customer service representative, to service technician, Todd, to estimator/sales rep, Matt, to install team, Kevin and Nate...a very pleasant and professional experience. Everyone was timely, thorough and knowledgeable. Willing to share information yet no pressure. They truly want their customers to be happy and comfortable. Woke up to no heat one morning and had a technician at the house within a few hours. He quickly analyzed the problem and provided options for repair versus replacement. The sales rep arrived promptly for our scheduled appointment that afternoon and, with our input, provided several options for replacement units. The install team was out promptly the following morning! They worked non-stop for six-plus hours. We have nothing but positives to describe this company. Highly recommend."

"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

At Tetteris HVAC, we take great pride in our 25 years of experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. Call us today!

"I have been meaning to review this company for a while now. Had a full AC and heater exchange installed  in December and then a quick fix to the other unit last week. Cant say enough about them, they are great mechanics, arrive when promised, sell a great product at a very fair price. 
Tecs on the call were Doug, Jon Hil, Jon Asaro, John Ward"