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Find Air conditioning pros in Duncan

Avatar for D & R Heating & Air
D & R Heating & Air
4.8(
9
)

Serving Duncan, OK and surrounding areas

Approved

In business since 1981

Free estimates

Warranties offered

"Our appointment was fir between 9am - noon. He called sbout 8:30am to say he was on his way. He arrived just after 9am. He was nice, friendly and courteous. We just wanted our furnace cleaned and inspect. He did the job and told us our furnace was in great shape. He didn't try to uosell us on anything. I would recommend D&R HEATING AND AIR."
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+40

Response time9 hrs
33 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for J & J Burk Mechanical Contractors, Inc.
J & J Burk Mechanical Contractors, Inc.
4.8(
92
)

Serving Duncan, OK and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Sam did an outstanding job he was very professional and polite and knew right away what to do .He cleaned the inside and outside units and changed the filter and now I can feel the difference in the air conditioning it seems a lot cooler I am very very pleased with his work."
Response time2 days
Recommended by93%of homeowners
Avatar for Chad's Heat And Air
Chad's Heat And Air
5.0(
6
)

Serving Duncan, OK and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Found out I needed to replace 5 ton heat pump on the 16th. I priced 13 other company's within 50 miles of my business. The price for the pump and installation was $1,OOO.OO CHEAPER PLUS the service was 1 day. They had it in stock, didn't have to order it, and I got a 5yr warranty plus 1yr labor. I couldn't ask for better price or service!!!!!"
Storefront
Truck
Recommended by100%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)

Serving Duncan, OK and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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FAQs for air conditioning projects in Duncan, OK

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 Duncan, OK homeowners’ guide to air conditioning services

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