Serving Stratham, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"done right and on time both AC and Furnace--pleasant person to work with and all at a reasonable cost--would recommend Jake highly. ED L"
Serving Stratham, NH and surrounding areas
Approved
Super Service Award Winner
In business since 1932
Free estimates
Emergency services offered
"Always happy with the service. I recently had my thermostat upgraded by Jason S. In service, and couldn’t be more happier with his expertise, and dedication!"
+11
Serving Stratham, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Amazing service! very knowledgeable, clean work and super respectful! if you find yourself needing any help when it comes to your heating or Air Conditioning system, call Keenan without a doubt."
+56
Serving Stratham, NH and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Prompt, efficient, professional. Knowledgeable. Nice to find qualified workers."
+172
Serving Stratham, NH and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Kevin was great. Our Central Air System died during a Heat Wave . When other companies told us they couldnâ t give us an appointment for two weeks, Kevin came the next morning and on a Holiday weekend. He was quick and reasonably priced. We would highly recommend Kevin Russo to anyone looking."
+2
Serving Stratham, 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 Stratham, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Free estimates
Emergency services offered
"We loved how honest he was with us! He let us know what options were available to fix our air conditioning and how we could save money!"
Serving Stratham, NH and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Very professional and experienced and friendly I talk to them this morning they came and fix my furnace today I will definitely call them again"
+19
Serving Stratham, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Small jobs welcome
"Eric did a fantastic job installing our new bathroom fan. He was courteous, honest, and clearly knows his trade. The fan is quiet and works beautifully. It’s such a relief to find someone reliable and skilled. We will definitely use Angell Electrical again! Highly recommend."
Serving Stratham, NH and surrounding areas
Approved
In business since 2014
Free estimates
"I had my Central AC replaced during one of the heatwaves this summer and the Ville came through professionally and did an amazing job! Great crew of guys who take pride in the quality of work and efficiency in getting people comfortable. Would definitely recommend them to anyone who needs any HVAC work done call The Ville!"
+5
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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