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Find Air conditioning pros in Lawrenceville

Avatar for R Wiley Heating & Air
R Wiley Heating & Air
4.7(
1,114
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+12 more

Serving Lawrenceville, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"I called R.Wiley, Heating and Air, and Leonard came out right away. Rather than immediately telling me that I needed to replace the system because it was so old, he searched first what the problem could be. He replaced a part, but it turned out that this was not going to work very well because my furnace was just too old. It helped a bit but it was only a temporary fix to keep the furnace going for a while longer. We then decided that I would have to replace the system. He did NOT charge me for the part or for the service call! The price he quoted for a new system, was very reasonable, and on top of that, he gave me a discount because I am a service contract client. Then, two days later, because of the very cold weather, my system decided to quit altogether on Saturday morning. I left a message on Leonards phone asking if they could come out the next Monday to install the new furnace instead of the Tuesday we had agreed on. He called me back a few hours later and told me that they had made some arrangements with the supplier of the furnace and that they would COME OUT THE NEXT DAY WHICH WAS A SUNDAY!!!! They installed the system on Sunday and in the evening my house was comfortably warm again! This is amazing service that you don't see very often! It made me bless the day I signed the service contract with R. Wiley Heating and Air a few years ago! I Can really recommend this company for its courteous, friendly, and professional service!"
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Response time10 hrs
Response rate100%
37 neighbors recently requested a quote
Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
4.8(
191
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Lawrenceville, 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
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+5 more

Serving Lawrenceville, 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!
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Cool Air Mechanical's Service Team
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Cool Air tech headed to a job!

+35

27 neighbors recently requested a quote
Recommended by94%of homeowners
All Seasons Heating and Air
4.8(
97
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Lawrenceville, GA and surrounding areas

Approved

Super Service Award Winner

In business since 1978

Free estimates

Credit card accepted

"Bobby came out and installed a complete Trane system and even relocated the furnace and A/C compressor to a more sensible location. The installation crew was polite, professional and efficient. The new heating and air system works flawlessly. Best service I have ever gotten from a HVAC company ever!"
Response time8 hrs
Response rate88%
10 neighbors recently requested a quote
Avatar for Ragsdale Heating, Air & Plumbing
Ragsdale Heating, Air & Plumbing
4.7(
187
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving Lawrenceville, GA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I selected having my new HVAC (heatpump) system installed by Ragsdale based on the qualified sales consultation, the use of Carrier products made in the USA, and Ragsdale being a local certified family run business. My new unit was installed this morning by two technicians who worked efficiently and who kept me in the loop about the new equipment, thermostat, warranty, and FAQs. They were polite, neat & tidy. Well recommended."
Response time5 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for BE Relieved Heating & Air Conditioning, Inc.
BE Relieved Heating & Air Conditioning, Inc.
4.8(
20
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service+1 more

Serving Lawrenceville, GA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

Customer comfort and satisfaction is our primary objective. We offer routine maintenance, expert repairs and high-quality installations. We understand that trust is earned and that is how it should be. All we ask is for the chance to earn yours. Our many customers know that if and when there is a home comfort need, they can count on us.\nServicing residential and light commercial markets, we focus on the installation, repair and maintenance of new and replacement HVAC systems, dual fuel systems, zone control, humidifiers, air cleaning and air purification systems.

Response time6 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for air conditioning projects in Lawrenceville, 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 Lawrenceville, GA homeowners’ guide to air conditioning services

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