
Serving Cortland, NY and surrounding areas
Approved (Corporate)
In business since 1932
Free estimates
Emergency services offered
"They sent 5 guys. They were fast. I would recommend."


Serving Cortland, NY and surrounding areas
Approved (Corporate)
In business since 1932
Free estimates
Emergency services offered
"They sent 5 guys. They were fast. I would recommend."

Serving Cortland, NY and surrounding areas
Approved
In business since 2015
Free estimates
Credit card accepted
"Joe is the man!! I will be calling him for every job that I possibly can. Easy to schedule, knowledgeable, professional, personable... 15/10 would recommend."





+21
Serving Cortland, NY and surrounding areas
Approved
In business since 2013
Free estimates
Customers say: Quick response
MQ Heating & Air Conditioning, professionals have over 25 years of experience making your home/office as comfortable as possible. Whether a heating or cooling issue, our company has the ability to get the job done. From A/C central air installs to heat pump replacements, MQ Heating & Air Conditioning, does it all! Our professionals are dependable, qualified and provide the highest level of customer service. PLEASE ASK US ABOUT OUR FINANCE PROGRAM. Call us today for a free quote!

Serving Cortland, NY and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Brian is very knowledgeable, professional, and courteous to work with. He installed a new heat pump for heat and air conditioning in a new addition of my house. He was easy to contact, promptly stopped out to make a plan for what I needed installed and had a quote within a day or two. During his installation he was easy to work with and showed a deep understanding of all things HVAC. He even stopped out multiple times to ensure there were no leaks after the installation was completed. I would highly recommend After Hours HVAC for any heating and cooling needs. Brian also services my furnace, propane stove, and heat pump every fall. I have recommended Brian to many friends and family members and they have also become happy customers."

Serving Cortland, NY and surrounding areas
Approved
In business since 2006
Customers say: True professional
"AMAZING!! My bathroom looks INCREDIBLE thanks to renovations gone wild!!"





+13

Serving Cortland, NY and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
Hi, I’m Lenny Guenov, owner of Guenov Comfort Solutions. I’ve spent years working my way up in this industry, starting from the ground up. My journey began in a scrapyard, armed with nothing but a saw and sneakers. From there, I installed residential and commercial equipment and eventually became a service technician.\n\nAlong the way, I’ve been covered in mud in dirt fields, surrounded by scrap metal, coated in insulation in customers’ attics, and braving snow on commercial rooftops. Through it all, I’ve learned what it truly means to work with dignity and integrity. That hands-on experience drives me to provide honest, reliable solutions for every customer.\n\nYour not just getting a technician, you’re getting someone who’s lived the work, knows the details, and brings the reliability and honesty too often missing in this industry. I’ve fought tirelessly to earn my place in this tough, rugged field. All I ask is the chance to earn my place in your home and deliver comfort for your family

Serving Cortland, NY and surrounding areas
In business since 1977
Emergency services offered
Credit card accepted
"They are wonderful. They have been here at times when we needed they have gone way above from one would expect on a service call."
Serving Cortland, NY and surrounding areas
In business since 2013
Free estimates
"The service man showed up on time and quickly took care of the problem"





+4

Serving Cortland, NY and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."


Serving Cortland, NY and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"Mitchell Electric was very prompt and very professional."
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.

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