Adon provides a full range of heating and air conditioning services to the residents of Denison, TX and the surrounding areas. We pride ourselves on providing expert work and outstanding customer experience!
Read our reviews and find out why your neighbors call us for all their heating and air conditioning needs in Denison, TX.
Local Reviews
for Denison, TX
Our Reviews by City
Great job
Debra - Denison, TX 75020
2nd tech to work on HVAC outage, was fixed however a bit of rainwater in the shorted the system. Quick service! Charles explained the remaining issue, which sounds as if it would have been hard to diagnose prior to the rain storm. Thank you!
INCREDIBLE TECHNICIAN!!
Laura - Denison, TX 75020
ALEX IS AMAZING! HE ARRIVED ON TIME, WAS EFFICIENT, KNOWLEDGABLE AND THOROUGH. HE WENT OUT OF HIS WAY TO PROVIDE EXCELLENT CUSTOMER SERVICE IN REPLACING DUCTS IN MY ATTIC, EXPLAINING EVERYTHING. AND EVEN HELPED ME CONTAIN THE RODENT PROBLEM THAT WAS RESPONSIBLE FOR THE PREVIOUS DUCT DAMAGE SINCE I WAS UNABLE TO CLIMB THE ATTIC LADDER MYSELF. HE WENT ABOVE AND BEYOND MY EXPECTATIONS. WHEN I HAVE ADDITIONAL DUCTWORK DONE -- HE WOULD BE MY CHOICE FOR A TECH. ALEX DESERVES A BIG RAISE!!! THANK YOU!
Great
Walton - Denison, TX 75020
5stars thank you charley
Excellent product with outstanding service
David - Denison, TX 75020
On-time and great service
Green - Denison, TX 75020
He was there 10 minutes ahead of schedule and had us back up and running very quickly!
Outstanding service
Tucker - Denison, TX 75020
I love this company. They Take great care of me
Good service. Tech was knowledgeable and helpful
Coley - Denison, TX 75020
Shelby S.
Upon arrival, I investigated the odor the customer is experiencing. I found that the evaporator coil is emitting the associated smell. I spoke with the homeowner about routes to addressing this issue. I offered the air scrubber, u/v light, evaporator cleaning, and adding supply and returns to the attic. I performed the maintenance at this time, too. I noticed that compressor is not protected with a surge protector. Customer confirmed that they have power outages at times. The compressor is starting with higher than recommended amps. 108/109. I offered a surge protector. Customer decided he only wanted estimates for surge protector, hard start, and the evaporator cleaning. The supply plenum is experiencing rust on the outside of it. With the home being spray foamed, it is advised to install supply and return grill in the attic to allow the humidity to removed.
Matthew C.
Dryer Vent Cleaning, showed before and after pictures to client, I preformed heat maintenance on a 2023 Trane gas furnace. I tested all electrical components and safeties on the inside unit. All tested within manufacturer specifications. I proceeded to the outside unit to visually inspect. I noticed that the unit does not have any type of surge protection on the system. Provided estimate to have surge protection installed. Unit was heating upon departure.
Shelby S.
Labor to pick up, install, and handle warranty paperwork. December 4th, 2025 I returned to install the warranty inducer motor. The noise is no longer happening and it is performing well. Also, I performed a CO test to ensure not CO was back drafting out of the flue.
Shelby S.
Upon arrival, I found that the bearings in the inducer motor are worn causing a metal on metal rubbing noise. I verified that the system has a parts warranty, but the system no longer has a labor warranty.
Shelby S.
Upon arrival, I found the outdoor unit was in a hard lock out. The manager told me that they recently replaced the filter due to it being completely compacted. I reset the hard lock out and got the system running. I checked the amps, capacitor, and refrigerant. I determined that the unit had tripped 3 times on a low pressure switch. This resulted in a hard lock out on the outdoor unit. I did not have access to the indoor unit to further evaluate.
Shelby S.
Found that the neutral wire had come undone when the panel fell. I reconnected it and power returned.
Brayden W.
On site for heating maintenance on 2022 Trane furnace. Homeowner stated all is well with normal system operation. Proceeded with heating maintenance as scheduled. 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested for gas leaks 6. Tested functionality and cleaned flame sensor 7. Tested functionality and cleaned pressure switches and ports 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Tested functionality and visually inspected surface igniter 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. 15. Rinsed condenser unit to promote heat exchange Found decent amount of dog hair in return. I would recommend cleaning out the return in order to prevent dust and dander from making it into the unit and ultimately shortening the lifespan of
Matthew C.
Preformed single system heat maintenance on a gas system. 2018 Tested all electrical components and safeties on the inside unit. All tested within manufacturer specifications. Client does have a reme halo uv ligh, he bulb has burnt out. Offered replacement options for a new bulb. I also noticed the unit did not have any surge protection on it. Client elected to have surge protection installed on the outside unit. Unit was cooling upon departure. Surge protection HVAC ONLY 240V SURGE PROTECTOR INTERMATIC AG3000 OR EQUAL SURGE PROTECTORS PROTECT SYSTEMS FROM SIGNIFICANT POWER FLUCTUATIONS.
Matthew C.
Upon arrival client stated that the heater would come on for a couple of hour then shut off. I went to the thermostat and set the heat to on and noticed the temporary hold was on until 6 am. I switched the hold to permanent and presented findings to the client, unit was heating upon departure
Matthew C.
Arrived at our clients home for a tune up inspection. Our client has a trane ion filter. He had not cleaned it since last year. I proceeded to clean the filter and preform a heat maintenance inspection. Kevin explained to me that the outdoor unit has not worked for some time because he needs new high voltage wire run from the panel to the unit. Everything is running properly on departure. Our client prefers once a year maintenance and declined a maintenance plan today. Do you know that for $60 more you can get two more visits?, Spring and Fall and get advantage for all our benefits? Ask Details to your Adon's Technician
Matthew C.
Preformed gas valve change out. Presented client with before and after pictures of work done. Preformed single system maintenance on a gas furnace 2013. I tested all safeties and electrical components. Client did not have filter at the time of inspection. Tested blower motor amps as well as inducer motor amps. Both tested within manufacturer specifications. Outside unit is a Payne 2021. Unit was back to heating upon departure.
Matthew C.
Client stated that he turned on the heat last night and woke up to the thermostat reading 64 degrees this morning. Upon arrival homeowner met me outside and showed me where the attic space was. I proceeded to the attic where I opened the unit and started running diagnostics on the furnace. As I was testing the heat cycle I noticed the igniter would glow and then the gas valve would open and then shut immediately. I also noticed the unit had no sediment trap for the gas line leading into the valve. I determined that ,after a couple of other tests, the gas valve was faulty. I presented my findings to the client. Client has elected to replace the gas valve and add the sediment trap to the line. Unit is currently not heating.
Matthew C.
Preformed heating maintenance on a dual fuel system. Tested all electrical components on the furnace all tested within manufacturer specifications. Changed filter for the client. Client did have air scrubber installed but not connected. Tested all electrical components on outside unit all tested within manufacturer specifications. Spoke to client about adding a surge protection to the inside unit. Unit was cooling upon departure.
Matthew C.
Preformed heat maintenance. Tested all electrical components inside the furnace. All tested within manufacturer specifications. Changed clients air filter. Client had air scrubber but has it disconnected. They didn’t want it to be reconnected due to they couldn’t tell a difference while it was plugged in. Noticed unit does not have surge protection. Unit was cooling upon departure.
Matthew C.
Heat preventative maintenance on a heat pump from 2018 and a mini split from 2022. Customer did provide me with an air filter to replace today 20*20*1. During my inspection I checked temperatures, checked electrical connections and components, checked the heat kit and its safety components, washed the coils outside, and inspected the system for dirt buildup in it. I did find the heat pump to not have surge protection on it and after talking to the customer about it he does want to revisit it on his spring check up. Overall the systems are working and heating at this time and I did show the customer how to turn his electric heat on and off for the temperature drops below 32 degrees. System is running upon departure.
Brayden W.
Arrived on site for heating maintenance. Homeowner stated all was well with regards to normal system operation since work was completed in blocking living room vent. 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested compressor/ condenser fan motor capacitor. 6. Checked compressor amp draw. 7. Checked condenser fan motor amp draw. 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. Clean 11. Inspected blower motor/ blower wheel. 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. 14. Inspected drain lines and treated to prevent blockages 15. Rinsed condenser unit to promote heat exchange because we noticed a decent amount of dust and debris in the coil. Capacitor was testing within range, but is starting to test a bit low. Contactor was te
Brayden W.
208/210 unit freezing. Believed to be refrigerant leak will need to check after defrosting. 2013 213 cap looks old and rusty but testing within range. 200 hallway thermostat wire to outdoor unit has exposed bare copper. This could cause a short. Missing insulation on suction line. Disconnect is broken. Terminal has broken off from disconnect box. Cannot safely check electrical on this unit until, disconnect issue is addressed. 200 lobby old and rusty cap but testing within range contactor is testing outside of manufacturer specification. 202 bad capacitor 200 -B Rooms bad capacitor Hallway and B rooms north side - R22 unit and bush removal MC lobby and Activities- bad capacitor and condenser cleaning MC Dinning - hard start kit recommended for high start amps, capacitor, and Contactor. Fan would come on immediately but compressor is struggling to start up. A Rooms 300s - bad cap Maintenance office - 1996 R22 unit Dining- bad capacitor Kitchen - bad capacitor Room 308 - R22 system 0
Shelby S.
Upon arrival, I found that the outdoor unit was not getting voltage. I confirmed at the furnace board that my voltage was being sent outside. I determined that the thermostat wire is broken somewhere in the ground. Customer approved running a new thermostat wire and Jacob came to assist. System is operational and cooling.
jcg311690@gmail.com
Ac preventative maintenance on a heat pump from 2020 with air filter size 16*25*4 which customer has recently replaced. During my inspection customer brought to my attention that she was having the company that installed the system come out to change the drain pan because it has rust. I also found the capacitor to fail today’s inspection and after bringing it up to the customer she decided to have the original company replace it. Overall the system is cooling and running, electrical components and connections are good and I washed the coil outside today.
Matthew C.
Preformed cooling maintenance. Tested all electrical components on he inside unit, treated drain line with total. Tested the blower motor run amps. Tightened all connections to insure that nothing had loosened. Temperature across the coil was at 20 degree split. 56 supply temp and 76 return temperature. Proceeded outside to test all electrical components, run and start amps. Run and start amps for the fan and compressor motor tested within manufacturer specifications range. Tested all other electrical capacitor was testing within manufacturer specifications. However the Contactor was testing on the high side of the manufacturer specifications range at 20.6 ohms. Provided estimate to repeal ace the Contactor. Unit was cooling upon departure.
Shelby S.
come out to system not cooling, noted that the capacitor was failed. replaced capacitor under parts and labor warranty. Tested system and system is running to manufacture specifications
Jesse V.
Came to clients house to do quality control check of downstairs unit Found condensation water in secondary drain pan. Inspected the issue further and insulated the main drain line more to prevent water dripping off of pipe into pan and ceiling. Flushed drain line with water to insure the lines were not clogged. Drain lines were draining properly. Took temperature splits across the coil were 22 degrees. 55 degrees coming from supply and 77 degrees coming in to the unit Units were cooling upon departure.
Jacob P.
I returned to our clients home to correct the airflow issues that they were having with the guest bathroom and the office space. I was able to increase the office airflow by over 70 CFM and reduce the bathroom by 50 CFM. This adjustment should allow for the desired airflow and temperature in those spaces.
Jacob P.
I arrived to the unit not cooling properly properly on the west side of the home. I turned the thermostat on and could hear the indoor unit running but the outdoor unit was not coming on. I verified power into the contactor but the contactor had failed. I showed this to Mr biosworth and he elected to replace the contactor today. Once replaced I measured refrigerant pressures and identified the system to be extremely low on refrigerant. I showed this to our client and he asked for a rough estimate for 3 head mini split system. He is planning on completing some remodeling and would like the min8 split system installed after the work is done. I will get with Jesse and we will send over a rough estimate for a new system install. I did also c9mpkete the tune up service for the existing min8 split and ensured it was running properly.
Jacob P.
2 Complete system
