
Serving Newton Junction, NH and surrounding areas
Approved
In business since 2016
Credit card accepted
Customers say: Quick response
"My best experience ever dealing with an air conditioning problem. They were prompt courteous and professional."


Serving Newton Junction, NH and surrounding areas
Approved
In business since 2016
Credit card accepted
Customers say: Quick response
"My best experience ever dealing with an air conditioning problem. They were prompt courteous and professional."

Serving Newton Junction, NH and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Jerry was very professional and did a quick clean job. I would recommend Kindom Cooling. They helped with an animal infestation that occurred in the attic also. They went above and beyond my expectations. They are terrific."





+67

Serving Newton Junction, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"Jake was very much a professional. He was on time and completed the work in the amount of time he estimated. I would recommend and hire him again."



Serving Newton Junction, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"Professional & courteous. Looked & checked at every component of the AC unit."

Serving Newton Junction, NH and surrounding areas
Approved
Super Service Award Winner
In business since 1932
Free estimates
Emergency services offered
"Best customer service and technicians. Stephanie, Lead Installation Coordinator, acts promptly in scheduling and keeps customers informed of updates. Ryan, Installation Technician, has been exceptionally knowledgeable in resolving both heating and air conditioning issues. Highly recommend Palmer Gas & Oil Nancy R"





+11

Serving Newton Junction, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Granite State Refrigeration services did an excellent job with my Mini Split install. I called the owner for a quote and he was very responsive and prompt. When at my house he explained my options based on my needs, wants and budget. He was also very knowledgeable about the products that he installs. I hired him pretty much immediately and he worked around my hectic schedule to have the unit in and running as soon as possible. I feel like a got a quality unit for a fair price and install went smooth.. I would recommend Granite State refrigeration to anyone who needs this type of service."





+56

Serving Newton Junction, NH and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Scheduling was right on point. System was installed right after Christmas. Prep process was thorough. Extremely responsive when we switched over to A/C and performance wasn’t as expected. Was a factory setting issue. Very communicative amongst their team and with us. Great follow through. Proactive annual maintenance scheduling and thorough in their system review. Would definitely use them again."





+172

Serving Newton Junction, NH and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Matthew responded very quickly to my call and showed up promptly thereafter. He was very professional and worked diligently to get my boiler working again and the heat restored to my home. He was able to diagnose the problem rather quickly and fixed the issue, even going so far as to explain many of the parts he had to replace and made me feel very comfortable that my unit was running efficiently when it was all done. I would highly recommend NexGen Aire and plan to call Matthew again for future issues. Fast, efficient, and affordable."





+19

Serving Newton Junction, NH and surrounding areas
Approved
In business since 2008
Credit card accepted
Offers commercial services
"I found Comfort Air online and reached out to install central AC in my mother's condo. Patrick got back to me promptly, was very receptive in answering all of my mother's questions, and was able to start job within a couple of weeks from first call. The job took two days total, and my mother was impressed from start to finish! I highly recommend Comfort Air."





+18

Serving Newton Junction, NH and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Spent a lot of time making sure everything was serviced appropriately."





+19
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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