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

Avatar for Bama Air Systems Mechanical Contractors, Inc
Bama Air Systems Mechanical Contractors, Inc
4.9(
14
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Houston, AL and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"John and Zack from Bama Air Systems were personable and professional as they replaced our old mini split system with a quality mini split. The four other companies that came out before Bama didn't have a clue on what to do. Thanks Bama Air!"
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+14

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Hiller Plumbing, Heating, Cooling, & Electrical
Hiller Plumbing, Heating, Cooling, & Electrical
4.5(
76
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Houston, AL and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Emergency services offered

Hiller Plumbing, Heating, Cooling, & Electrical, established in 1990, stands for quality and reliability. With our Happy You'll Be or the Service is Free™ guarantee, we are dedicated to customer satisfaction in Florence and the surrounding communities. Our plumbers provide emergency repairs, sewer line service, and expert installation or repair of water heaters. Our HVAC specialists ensure your comfort with preventative maintenance, air conditioning and furnace repairs, for year-round comfort. Our licensed and insured electricians offer prompt emergency response, custom upgrades, and safe, thorough electrical fixes for both residential and commercial properties. Hiller is your trusted provider for all your home service needs.

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+10

28 neighbors recently requested a quote
Recommended by94%of homeowners
Cool Temp Services
4.7(
67
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Houston, AL and surrounding areas

In business since 1988

Free estimates

"Charles showed up right on time and didn't attempt to futz around on the repairs needed. He went straight to work and then returned the next day to finish after getting a part from his warehouse. I have cold air again! No more hellish temps! I am very happy and will continue as a customer."
Response time3 hrs
Recommended by98%of homeowners
Avatar for Southern Climate Pros LLC
Southern Climate Pros LLC
5.0(
5
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Houston, AL and surrounding areas

In business since 2024

Emergency services offered

Warranties offered

At Southern Climate Pros, we don?t just service HVAC systems?we create lasting comfort for every season. Our expert team provides custom heating and cooling solutions for both homes and businesses, ensuring energy-efficient performance and reliable results. Rooted in faith, craftsmanship, and care, we go beyond the basics to deliver honest service you can trust?every time.

Response time1 day
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FAQs for air conditioning projects in Houston, AL

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 Houston, AL homeowners’ guide to air conditioning services

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