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Avatar for Pronto Heating & Air Conditioning
Pronto Heating & Air Conditioning
4.8(
1,548
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Farmington, MN and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Robby did a great job. He cleaned and blew out the drain lines for the furnace humidifier and the air conditioner. He replaced the April-aire humidipad filter. He cleaned inside the furnace cabinet, cleaned the flame sensor, and checked the wiring. He checked that the carbon monoxide levels are within normal limits."
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+4

Response time7 hrs
Response rate100%
12 neighbors recently requested a quote
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Avatar for Hoffman Cooling and Heating
Hoffman Cooling and Heating
4.7(
2,072
)
Central A/C - Install

Serving Farmington, 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."
Twins!!
Another set of twins!!
Oil to gas conversion, took out a monster!!
Jim's new car
New install van!!

+5

1601 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Air Knights Heating & Cooling, Inc.
Air Knights Heating & Cooling, Inc.
3.9(
522
)
Central A/C - Service or Repair

Serving Farmington, MN and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I spent a long time looking for an accommodating and knowledgeable HVAC professional and Air Knight fulfilled all my criteria for a great service company. Phillip came to me and was quickly able to assess and deal with my air conditioning situation - believe me I contacted a lot of people and no one was as responsive as he was."
Furnace Installation in Burnsville MN
Response time8 hrs
8 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Farmington, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"We had an issue with our water conditioning system for Aquarius. They attempted to remedy the problem and determined they needed to replace the system. With the system being over 5 years old, I was uncertain what it would cost me, however, the only thing better than the equipment they provide is their customer service. No cost to replace with a better system. Now that is service!"
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Our Team
Response time12 hrs
Response rate100%
6 neighbors recently requested a quote
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Avatar for Hero Plumbing, Heating Cooling and Electrical
Hero Plumbing, Heating Cooling and Electrical
3.8(
288
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving Farmington, MN and surrounding areas

Approved (Corporate)

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!"
Air Conditioner Tune-Up
Completed Project
Furnace Install
Furnace Tune-Up
Garbage Disposal

+11

Response time2 hrs
73 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for One Hour Heating and Air Conditioning Southsota
One Hour Heating and Air Conditioning Southsota
5.0(
5
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Farmington, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

One Hour Heating and Air Conditioning is your premier provider for heating and air conditioning in Southern Minnesota. If you are south of the river, we are your people!

Furnace
Furnace
Furnace
11 neighbors recently requested a quote
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Avatar for IcanHandyman
IcanHandyman
4.8(
40
)
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Farmington, MN and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

Caulk boarder of tile bathroom floor
Clean valleys on roof
Replace missing fascia board covering
Cedar deck cleaning and staining
Stair case rail install

+113

Response time1 day
Response rate100%
3 neighbors recently requested a quote
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Avatar for Prolific Mechanical
Prolific Mechanical
5.0(
6
)
Outdoor Mist Cooling System - InstallOutdoor Mist Cooling System - Install - For BusinessOutdoor Mist Cooling System - Service or Repair+1 more

Serving Farmington, 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."
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Avatar for Plugz Electric
Plugz Electric
4.5(
13
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Farmington, MN and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties 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

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+8

Response time10 hrs
Response rate100%
23 neighbors recently requested a quote
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FAQs for air conditioning projects in Farmington, MN

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.

The Farmington, MN homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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