Serving Saint Paul, MN and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Very well, the air conditioning unit was fixed promptly."
+4
Serving Saint Paul, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1930
Free estimates
Emergency services offered
"I've participated in Standard Heating &Air Conditioning for many years. The come out promptly twice a year to check the AC in the spring Furnace in the fall. Scheduling is easy, they arrive on time, they are courteous and efficient. They always explain their recommendations and pricing and provide options. Ben came out this fall and displayed all of the qualities I've come to expect from Standard Heating and Air Conditioning techs."
+1
Serving Saint Paul, MN and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"After a no call/no show by another technician (during 3 weeks of 90+ temps, a sick spouse, 3 tired dogs & a pandemic), I called Hvac Doctor after finding a referral on Angie's List. My call was promptly returned & I was honestly told I would be contacted if an opening presented itself. Within a few hours & much to my delight after a restless night of sleep, I was called & my central air was promptly & accurately repaired. These guys are top notch professionals as well as knowledgeable. Hvac Doctor is now going to be my new ongoing routine maintenance technician as well. Search no more, call Hvac Doctor! Can I give them 10 stars?"
+137
Serving Saint Paul, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1957
Free estimates
Emergency services offered
"24 hour emergency service is excellent. Our air conditioning stopped working at night so we called at 2:00 am and a technician was out and diagnosing the problem by 11:00 am. Excellent customer service, friendly and knowledgeable technicians and very professional company overall. HIGHLY Recommended."
+5
Serving Saint Paul, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1987
Free estimates
Emergency services offered
"Would 100% recommend this company to anyone that has HVAC needs. From start to finish everyone that I interacted with was helpful, knowledge, and kind! Spending a lot of money on a new furnace, air conditioner, and water heater is never fun, but Aquarius made it so easy. They listened to what I was looking for and make recommendations that would serve my needs (and not just the most expensive option). They were very accommodating with my schedule and were able to install everything while I was out of the State. Everyone made it easy for me to trust getting everything installed when I was not around."
Serving Saint Paul, MN and surrounding areas
Approved (Corporate)
In business since 1914
Free estimates
Emergency services offered
"They lost money on our installation. We had 2 central air units installed, and 1 of them malfunctioned. They were relentless in getting it right. Ended up putting in a whole new system. Never cost me an extra penny."
+11
Serving Saint Paul, MN and surrounding areas
Approved
In business since 1918
Free estimates
Credit card accepted
"I feel I was over charged for and made mistake of not getting more estimates. I checked with 3 other companies that were $1,000 less for installing the same air conditioner."
Serving Saint Paul, MN and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
Plugz is your local electrical and HVAC company providing five-star service at an affordable price. Whether you're looking to upgrade your electrical panel, complete a whole-home rewire or, maybe you have an outlet that is giving you trouble, give Plugz Electric a call today. \n\nWe have financing options available to help you with larger repairs that you may not have planned for. Regardless of the situation, we're here for you, 24/7.
Serving Saint Paul, MN and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"I recently had Prolific Mechanical install a new air conditioning system, and I couldn't be happier with the results. The young man who completed the installation was professional, courteous, and extremely knowledgeable. He took pride in his work, kept everything clean, and made sure the installation was done correctly from start to finish. The new system runs flawlessly and keeps the house comfortable even on the hottest days. I highly recommend Prolific Mechanical to anyone looking for quality workmanship and dependable HVAC service."
Serving Saint Paul, MN and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and more! We guarantee your satisfaction, and we won?t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule today! \n \n
+8
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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