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Top-Rated Air conditioning pros in Westfield - Updated Nov 2026

Avatar for Good Guys Heating & Air Conditioning, LLC
Good Guys Heating & Air Conditioning, LLC
4.9(
89
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Westfield, IN and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"From the diagnosis to the installation of my central air conditioner, the process was seamless. Every question I had, my technician, Steve Gray knew the answer and made sure I understood how to maintain my unit, informed me about my units 10 year warranty, his work area was clean, Steve was professional and respectful of my time! I like the electronic notifications from Good Guys. My tech was prompt, efficient, and did a phenomenal job!"
New AC install
Water damaged furnace
Nest thermostat
Ecobee thermostat
Response time6 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Roy Rogers Heating and Air LLC
Roy Rogers Heating and Air LLC
4.8(
57
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Westfield, IN and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Roy arrived 30 minutes late but had called to inform me he was running late. He quickly identified our needs for new HVAC system and gave me a quote. He offered to complete the work quickly but could not do until the next week. He was very detailed. His quote was slightly higher than his competitors. We went with another company, but I felt Roy was genuine."
Additional Photos
Tracy Miller
Additional Photos
Response time2 days
Response rate100%
6 neighbors recently requested a quote
Avatar for Aaron's Air
Aaron's Air
4.9(
15
)
Central A/C - InstallCentral Humidifier - Repair or ServiceCentral A/C - Install - For Business+12 more

Serving Westfield, IN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Just finished up with Aaron at Aaron's Air. He put in some additional ducts for my basement finishing project. He and his work were excellent... His pricing very fair and an all around good guy! Hire Him! You will appreciate him as much as I did!"
Response time8 hrs
Response rate100%
49 neighbors recently requested a quote
Avatar for Armor Air
Armor Air
4.5(
149
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Westfield, IN and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Armor Air staff responded on time, and completed the work requested remarkably well (and on the same day). The new tankless water heater and the new water softener installed work very well."
AC maintenance
Arriving to new homeowner
New installed HVAC units
Drain Clearning
Water Heater

+5

Response time3 hrs
Response rate94%
190 neighbors recently requested a quote
Avatar for Frost Heating and Air Conditioning
Frost Heating and Air Conditioning
4.8(
22
)
Central A/C - Install

Serving Westfield, IN and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Dustin just replaced our furnace and air conditioning unit. He was reliable, on time and fair on cost. He s able to explain what he s doing and how it works in layman s terms so the average Joe could understand. Biggest bonus, he cleaned up after himself and left the space cleaner than it was when he started. Highly recommend Dustin for your HVAC needs!"
HVAC
HVAC
HVAC
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for air conditioning projects in Westfield, IN

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 Westfield, IN homeowners’ guide to air conditioning services

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