Serving Glens Falls, NY and surrounding areas
Approved
Super Service Award Winner
In business since 1968
Free estimates
Emergency services offered
"Adams Heating and Cooling has always been a reliable company for me. They are knowledgeable about my air conditioning and furnace products and their costs are reasonable and competitive."
+23
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Will Nichols, the owner, attempted the fix my 24-year-old air conditioning unit before telling me I needed a new one. Took most of the day to replace it since I have a boiler and not a furnace, so the air conditioning is an entirely separate unit. I was completely satisfied with the experience and will use A1 for routine maintenance."
Serving Glens Falls, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Credit card accepted
"We've now had two amazing experiences with Kenny Do-It & Principe. We needed a quick fix in our AC unit and they responded immediately. We most recently hired them to install a central air unit in our new cabin and we are so happy we moved forward with them. Their communication is spot on and they were wonderful to work with. Absolutely recommend! Excellent work and great people."
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
"Sean Gilhooly was excellent! He was clear about the plans for my ductless mini split and visited twice to ensure he had everything he needed and addressed by questions and concerns. The installation went smooth and looks and works great, I would definitely recommend FinMar Comfort to anyone looking to have this type of installation completed."
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"I highly recommend him to anybody that is looking for a great service and excellent work."
+12
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2005
Free estimates
Customers say: True professional
"Bob worked magic on my central air unit. Worked professionally and got it up and running in no time. Highly informative and professional."
+58
Serving Glens Falls, NY and surrounding areas
Approved
In business since 1939
Credit card accepted
Offers commercial services
For over 80 years, Crisafulli Bros. Plumbing & Heating Contractors, Inc. has provided plumbing, sewer and drain, heating and cooling design, installation, service, scheduled maintenance, and electrical services to our clientele. Founded in 1939, our company now spans three generations combining the pride and craftsmanship you expect from a locally owned and operated family business with the resources and knowledge available from a large national company.\n\nWith a growing workforce and a fleet of vehicles driving around every upstate NY neighborhood, Crisafulli Bros. is one of the largest mechanical contracting companies in the Capital Region. Our vast resources and commitment to quality led to us being recognized as the Best of the Capital Region for over 16 straight years and named a Top Work Place. We have set the standard for plumbing, heating, cooling, and electrical craftsmanship in the region.
Serving Glens Falls, NY and surrounding areas
Approved
Emergency services offered
Customers say: True professional
"The owner of the company, Jeremy Morin, was prompt and the furnance was cleaned in a timely manner. Also, he followed up with an email advising me on quotes for a new furnance as well. I will definitely continue my services with this company, and will be referring his business to my family and friends as well. I would like to mention Jeremy is a Veteran as well, and offers discounts to service men and women. Thank you again for a job well done."
+10
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2023
Free estimates
Customers say: Quick response
"Very knowledgeable in the field and was able to be flexible around my schedule as well work very diligently to get the job done. I would recommend Dave for any big or small hvac job there is out there and will be certainly having him come back for any work in the future!"
+4
Serving Glens Falls, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Great company Jon the owner definitely knows his stuff highly recommend!!"
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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