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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

"I waited a year and a half to file this review to be fair about my comments. I was at first put off by the fact that the son came over to give an estimate and he wrote about 15 words and a 16,000 dollar estimate with no description of the equipment or what all was included. He was strongly recommended by a friend so I went ahead and approved heat and air and new ductwork in my old 1954 3 bedroom house. He had an adequate crew to do the work and his father was very friendly. The work was adequate but after the job I found a lot to be desired. They left a lot of debris in the attic like old ductwork for me to remove. At every place they removed my freshly installed attic insulation to install new ducts and return duct they left all the insulation thrown about and nothing covering the areas around the ducts so I had to lowcrawl through the attic under all those ducts and reinstall all that insulation, which at my age (70 yrs old) that was no pleasure I can assure you. More Continued"
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets

+40

Response time9 hrs
27 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for Liberty Air Services
Liberty Air Services
4.8(
16
)

Serving Duncan, OK and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Absolutely thankful for this company! When requesting at quote at 930pm and receiving a call within a few minutes and getting someone out the very next day was amazing! We had a major mess up from someone else and they were able to come out and get everything fixed within 24 hours. 100% recommend this company for any heating and air services . We got my minisplit installed within just a few hours. We are beyond satisfied!!"
Lennox
New Armstrong Air Handler
New Lennox furnace
New Trane Condenser
New Trane Condenser

+10

Response time7 hrs
Recommended by83%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

"The two guys that showed up were very polite and professional and had the job done in no time flat. I was amazed at how long it took. I would recommend this company to anyone who has electrical problems. The only problem is that the service charge is too much."
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

"Our air went out on a saturday afternoon at the worst possible time.  We tried getting a hold of a couple other companies and they
did not respond. we called chad's heat and air and they were here in less than a hour. he had the part on the truck to repair our unit, and didnt charge extra for being a weekend..
"
Storefront
Truck
Recommended by100%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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