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Avatar for Pro Heating & Cooling Inc
Pro Heating & Cooling Inc
5.0(
44
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Una, SC and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"The technician was very knowledgeable and fast. He fully insulated the primary condensate drain line in the attic. Repaired end termination of primary condensate drain pipe at rear foundation wall. Replace media filter on return duct. He actually alerted me to the fact that the downstairs unit had two filters. One inside and one under the house. This restricts the air flow. Removing one would create better air flow."
Response time7 hrs
13 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Air Repair AL LLC
Air Repair AL LLC
4.4(
158
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Una, SC and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They did a good job. However, the Aire Serv employee who was in charge of my project accepted a position with another company. I haven't decided what to do yet."
Wallingford Rd. In Greenville
Goodman
Air Handler
14 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Integrity HVAC
Integrity HVAC
4.9(
79
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Una, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Integrity HVAC took extra care that our two new furnaces, and two new air conditioner units were running as they should be. They are professional, courteous, knowledgeable, and on time."
Mini Split Install
Mini Split Install
Heat Pump Upgrade
Heat Pump Upgrade
Additional Photos

+24

Response time9 hrs
7 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Chisholm Plumbing, Heating & Air Conditioning LLC
Chisholm Plumbing, Heating & Air Conditioning LLC
5.0(
15
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+1 more

Serving Una, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"My tech Travis showed up on time and did an amazing diagnostic of my system. He gave me mulipe options. We now have great cold air!!!!"
Hvac Install
Hvac Install
Hvac Install
Hvac Install
Hvac Install

+1

Response time8 hrs
50 neighbors recently requested a quote
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Avatar for FIRST CLASS HEATING & AIR
FIRST CLASS HEATING & AIR
5.0(
16
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Una, SC and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Showed up on time, diagnosed the problem, and fixed it in a timely manner. Highly recommend First Class Heating and Air. Don’t waste your time calling anyone else."
A/C System Replacement
Mini Split Installation - Commercial Client
A/C System Replacement
A/C System Replacement
Response time6 hrs
5 neighbors recently requested a quote
Recommended by23%of homeowners
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Avatar for Home Service Nerds HVAC, AC & Furnace Repair
Home Service Nerds HVAC, AC & Furnace Repair
4.4(
236
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Una, SC and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We are a Local, Veteran & Family Owned HVAC Service and Installation company in Upstate SC. We look forward to providing outstanding customer service and to helping you take great care of your HVAC system, whether that's routine maintenance or replacing your aging inefficient system. We chose education over sales so you are empowered to make the best decision for your home and family. We are told over and over that our "no nonsense" approach is refreshing and our customers appreciate not be "sold to". Feel free to message us to schedule your appointment with a NERD today!

Gas Furnace & Zoning
Dual Fuel System
Heat Pump- Trane
Air Conditioner
14 neighbors recently requested a quote
Recommended by16%of homeowners
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SNK Services LLC
5.0(
24
)
Central A/C - Install

Serving Una, SC and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"My unit kicked the bucket on a Tuesday in July, heard about around the clock heating and air from a friend. Gave Jerry a call and his team he had me up and running on Wednesday afternoon. Very fast response and professional change out. I’ll be using Jerry and the team from Around The Clock for all my heating and air needs!!!"
7 neighbors recently requested a quote
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Avatar for Chris Foster Heating & Air
Chris Foster Heating & Air
4.4(
427
)
Central A/C - Service or Repair

Serving Una, SC and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"Quickly corrected the issues I was experiencing with my air conditioning and had it back on in under an hour! Good price and quick response."
Response time9 hrs
50 neighbors recently requested a quote
Recommended by90%of homeowners
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Showing 1-10 of 258

FAQs for air conditioning projects in Una, SC

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 Una, SC 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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