Serving Blaine, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1930
Free estimates
Emergency services offered
"Ben is an extremely polite technician who tuned up our air conditioning unit, replacing a failing capacitor"
+1
Serving Blaine, MN and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"vitaly and his crew did a very good job of removing a big old furnace and installing a new furnace and air conditioner. They did it in a timely manner at a very fair price. explained everything very well. left the place cleaner than when they started. Highly recommend Hvac Doctor."
+137
Serving Blaine, 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 Blaine, MN and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"Kody did a fantastic job. His communication skills,expertise, knowledge of his products, timeliness, job site tidiness and fair pricing were greatly appreciated. He installed a Goodman heat pump system ( heating & air conditioning), Mitsubishi multi zone mini split ( wall unit & recessed ceiling unit), an Aprilaire whole home humidifier, a UV air purification system and surge protection system for whole HVAC system. I highly recommend his services."
+3
Serving Blaine, MN and surrounding areas
Approved (Corporate)
In business since 1956
Free estimates
Emergency services offered
Experience the Total Comfort Difference, since 1956. We sell different. We service different.\n\nAs a certified Carrier dealer and a recipient of the 2024 President’s Award, you can "Turn to the experts" with Total Comfort proudly bringing Minneapolis-St. Paul expert heating and cooling solutions. From AC repair to furnace replacement, maintenance, and more, our skilled, award-winning team delivers quality, affordable HVAC services across the Twin Cities—from Brooklyn Park to Eden Prairie and everywhere in between!\n\nSince 1956, Total Comfort has been doing whatever it takes to ensure each customer is 100% satisfied with their heating and cooling service. As a locally owned, customer-focused company, our #1 goal is providing honest, quality work to our Minneapolis-St. Paul neighbors. Every job is performed with respect and courtesy, leaving you satisfied in a more comfortable home.\n
Serving Blaine, MN and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"Prompt response and service in an emergency for my client to have air conditioning repaired/restored."
Serving Blaine, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1987
Free estimates
Emergency services offered
"Riley was the technician who serviced my air conditioner yesterday. Riley always kept me informed on the progress of the work he was doing and before leaving THOROUGHLY explained the condition of my air conditioner and what I can do to extend its life. Fortunately my air conditioner, even though it’s 11 years old, is in great condition and I plan on doing things to prolong its life. Overall I would give Riley a rating of 10. He is an exceptional technician, knows his job, explains things well, and personable. The cost today was $17 for a replacement filter."
Serving Blaine, MN and surrounding areas
Approved
In business since 1914
Free estimates
Emergency services offered
"They retrofit a central air conditioner in our 1920s house with radiant heat (no existing duct work) and it looks great. It is February so the AC canâ  t be run yet, but I expect it to work great. They worked quickly and left with the house just as clean as when they arrived! Thank you Hero!"
+11
Serving Blaine, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1971
Emergency services offered
Warranties offered
DJs Home Services of Minnesota has been Minnesota Homeowners' Best Friend since 1971, providing top-quality Plumbing, Heating, Cooling, Drains, Electrical, and Fireplace services. With decades of experience, DJs is committed to delivering reliable, professional, and customer-focused home services across the Twin Cities metro area. We take pride in our expert team, ensuring every job is done with care, precision, and a dedication to excellence.\n\nAt DJs, we don’t just serve homes—we build lasting relationships. We care deeply about our customers, employees, and the community, striving to make every home more comfortable, safe, and efficient. Whether it’s a quick repair, a full installation, or routine maintenance, homeowners can trust DJs for dependable service and a job well done.
+40
Serving Blaine, 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.
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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