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Find Air conditioning pros in Norcross

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

Serving Norcross, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"It was a big deal. It was fine. He recommended that I get a brand new air conditioning system. The big deal was fine but the additional work was not fine. He said he would take 4 hours but he took more."
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Response time10 hrs
45 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Dayco Systems LLC
Dayco Systems LLC
4.9(
179
)

Serving Norcross, GA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Dean and his team did in excellent job in installing my NEW HVAC system. I had been nursing my old system for the last couple of years. I finally went to the most trusted HVAC company that have worked with for years. The new system chills my first floor down in minutes. I should have done this sooner. Thanks for the all the folks that did the work and the professional staff in the front office and Sales."
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+56

44 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
4.8(
191
)

Serving Norcross, 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 Paze Heating & Cooling
Paze Heating & Cooling
4.7(
71
)

Serving Norcross, GA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Zeno was very professional and explained everything he was doing and why. He was also very prompt which I appreciated as I did not have cool air blowing out of my unit, and it was very hot that day."
Carrier
Carrier Furnace
Carrier Furnace
Carrier Furnace
Carrier A/C

+18

Response time5 hrs
7 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Cool Air Mechanical LLC
Cool Air Mechanical LLC
4.7(
278
)

Serving Norcross, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"I am very satisfied with the product and the service provided by Cool Air Mechanical and their technician, Sean Haynes. Sean did an excellent job of installing an air purification system. Sean also performed the annual checkup on my A/C system. I highly recommend Cool Air Mechanical and especially Sean for any air conditioning service."
Cool Air Mechanical Techs preparing for a day's work serving customers!
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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

84 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Ragsdale Heating, Air & Plumbing
Ragsdale Heating, Air & Plumbing
4.7(
182
)

Serving Norcross, GA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Top notch company - installed our new AC/Heating units two years ago. I was a bit pricey, but has performed flawlessly. Subsequent service calls have been reasonable and professional. Highly recommend."
Response time6 hrs
Response rate95%
11 neighbors recently requested a quote
Avatar for Guardian Heating, Air, Plumbing & Electrical
Guardian Heating, Air, Plumbing & Electrical
5.0(
16
)

Serving Norcross, GA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!

Your Guardian Experts
Free HVAC Estimates
Tankless Water Heater Repair, Maintenance and Installation
Fully Stocked Trucks
Heater Tune Up

+27

29 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for air conditioning projects in Norcross, 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 Norcross, GA homeowners’ guide to air conditioning services

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