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Find Air conditioning pros in Johns Creek

Avatar for R Wiley Heating & Air
R Wiley Heating & Air
4.7(
1,114
)

Serving Johns Creek, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"This was my second quote and this company is amazing. Quickly identified the issue, changed the motor, provided a filter and made sure everything was working on one trip within a few hours. The previous company (Air Pros, LLC) said it was unfixable and tried to sell me a new unit over $6k which was a huge scam. Don't go to those guys, work with this family owned honest business. Keep in mind HVAC repairs in many cases are not cheap, I own 3 houses and have paid several hundred or more when an HVAC is old and need repairs."
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Response time10 hrs
Response rate100%
41 neighbors recently requested a quote
Avatar for Atlanta Air Authority, Inc.
Atlanta Air Authority, Inc.
4.9(
237
)

Serving Johns Creek, GA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Atlanta Air Authority was thoroughly professional throughout the process of replacing my HVAC system. And their good advice even saved me money. They were able to do the job the day after I agreed to hire them, showed up on time, did a very professional installation, cleaned up the work area and hauled off the old equipment. I couldn't be happier."
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+9

Response time4 hrs
4 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Dayco Systems LLC
Dayco Systems LLC
4.9(
179
)

Serving Johns Creek, GA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I was really worried I would have to go a few days or even a week without cool air, but I called Dayco Systems that my friend recommended and I'm SO glad I did! They came out right away, after hours and fixed the unit. I highly recommend this company!"
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+48

38 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Paze Heating & Cooling
Paze Heating & Cooling
4.7(
72
)

Serving Johns Creek, GA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

We are a full service HVAC company. Our services include: diagnostic, maintenance service, repair, replacement, retrofit, pre-purchase inspection, and second opinion. We will diagnose, design and install the correct heating and/or air conditioner system to fit your individual needs. We are fully insured and bonded. We provide unsurpassed service and experience. We are timely and organized. Our strength lies with our integrity, knowledge, and faith. We Supply Our own parts, any parts supplied by consumer will come with additional fees. Diagnostic Fees Due at time of service $79.00 daytime / $118.50 after 5pm. \n

Carrier
Carrier Furnace
Carrier Furnace
Carrier Furnace
Carrier A/C

+18

Response time5 hrs
4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
4.8(
191
)

Serving Johns Creek, GA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Our AC went out in the middle of summer and I called to schedule an appointment and they made it out the same day! They were very professional and completed the necessary maintenance extremely quickly. We had air again by the end of the day. It’s also one of the most affordable places we’ve ever used for our heating and air maintenance and repairs."
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+17

Recommended by96%of homeowners
Avatar for Cool Air Mechanical LLC
Cool Air Mechanical LLC
4.7(
278
)

Serving Johns Creek, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"Great. Jerry Cobb came by to reprogram the thermostat for us. We were not able to figure out how to get it the way we wanted and Jerry took care of it for us. Cool Air replaced our entire HVAC system about 2 years ago. We were happy with the job and will be having them add a humidifier to the system soon."
Cool Air Mechanical Techs preparing for a day's work serving customers!
Filter Change
Cool Air Mechanical's Service Team
Loading filters in the trucks. We ensure our trucks are stocked and we have equipment and tools on hand to best serve you!
Cool Air tech headed to a job!

+35

46 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Moncrief Heating & Air Conditioning
Moncrief Heating & Air Conditioning
4.6(
310
)

Serving Johns Creek, GA and surrounding areas

Approved (Corporate)

In business since 1898

Free estimates

Emergency services offered

"Hottest day of the year so far, and the guys were in a sweltering attic half the day. The other half of the day they were trying to decide how to hoist the LARGE air-conditioning unit onto a ledge without destroying the landscaping. They had to bring in a 4th guy and a long, wide plank. They put that unit on the plank and three pushed it up the plank while the fourth helped position it. The men were appreciative of the cold watermelon I gave them and I welcomed them to help themselves to jug of cold water in the fridge. They had a f ull day's work on day one, then on day two, one man returned to finish the ductwork and the installation of the vent.

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Moncrief Truck
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1 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for air conditioning projects in Johns Creek, GA

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 Johns Creek, GA homeowners’ guide to air conditioning services

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