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Avatar for D & R Heating & Air
D & R Heating & Air
4.8(
9
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

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."
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets

+40

Response time9 hrs
32 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for All Tech Air Conditioning
All Tech Air Conditioning
3.9(
12
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Duncan, OK and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Josh was the tech that came out. He was very professional and clean. He was courteous and on time. He spoke clearly about what was going on with the A/C. He had everything he needed right then and there to find out what was wrong. Also, the problem should be fixed in about 2 days which is super fast compared to my experience with other repair companies. I would defiantly recommend."
New A/C Install
New 3 ton system
New 3 ton system
New 3 ton system
Spring maintenance on an air conditioner

+10

Response time8 hrs
Recommended by57%of homeowners
Avatar for AEGIS Service and Repair Co LLC
AEGIS Service and Repair Co LLC
5.0(
3
)
Central A/C - Service or Repair

Serving Duncan, OK and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Quick response and kept me updated on status of repair. Have used Aegis twice after follow up for a second opinion. By far best HVAC I’ve used. Fast , effective and only does work that is needed. Aegis will be my first call going forward. Thanks to Michael and his team!"
Project Photos
Furnace and AC change out
Furnace and AC change out
Furnace and AC change out
1 neighbors recently requested a quote
Avatar for L & L Housekeeping Service
L & L Housekeeping Service
New to Angi
Air Ducts & Vents - Clean

Serving Duncan, OK and surrounding areas

Approved

I've been a housekeeper for over 20 years. I have done residential and commercial cleaning as well as move outs and post construction clean up. I pay attention to detail and get the job done in a timely manner. I am a registered nurse and I work part time.

Avatar for Liberty Air Services
Liberty Air Services
4.8(
16
)
Central A/C - InstallCentral A/C - Install - For Business

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
)
Air Ducts & Vents - CleanDuctless Mini-split A/C - Install or Replace

Serving Duncan, OK and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"This job is to fully replace furnace, air conditioning and ductwork plus adding additional cooling. Signed the contract on Tuesday morning and six hours later, my compressor gave up the ghost. Called J&J Burk representative, and they arranged a service call early the next day at my request. Confirmed the compressor had blown up and installed temporary AC units in two rooms to tide us over. In addition, the main project was scheduled for Monday, 30 March but the contractor offered to start the next day, Thursday 26 March. The work has moved along very smartly and I would give them a SIX on a scale of Five. The technicians are skillful, courteous and keep me informed at all times as to the progress. Looks like the estimated 5 work days will shrink to four, but not certain. Still, I am VERY impressed with this contractor and would recommend them any time. This is from a retired Civil Engineer who used to write contracts and specification for this sort of work at a nearby Air Force Base. This work is top-notch."
Response time2 days
Recommended by93%of homeowners
Avatar for Chad's Heat And Air
Chad's Heat And Air
5.0(
6
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Install - For Business+4 more

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
Showing 1-10 of 47
Air Conditioning questions, answered by experts

This depends on the extent of the freezing. Some ACs only need an hour or two to thaw out, but others may need a full day to completely unfreeze. Once you turn off the system to let it unfreeze, check it periodically to make sure the drain pan doesn’t overflow. When you turn the system back on, keep an eye on it to ensure it doesn’t start freezing again.

You can buy R-22 refrigerant for your home air-conditioning system through your local AC repair specialist, who can also refill your R-22 system as needed. You may find that the cost of R-22 has gone up due to shortages as the EPA banned this refrigerant. Ask your pro to inspect your system for any leaks or issues.

While Freon is mostly odorless, a Freon leak will produce a faint chloroform-like smell. Some people find that Freon's odor has a subtle sweetness to it. Some telltale signs of a Freon leak beyond odor include ice crystals on your evaporator coil, bubbling sounds, and hissing noises.  

Most HVAC service calls include diagnostic fees, which could include checking on a specific issue you’re experiencing or running through a routine inspection checklist. If you called for a particular problem, the service call will also include an estimate to fix the issue, including materials and labor. Depending on your HVAC technician and the service you requested, you might also get a general inspection of your system components to ensure everything is working as intended.

Turn your system off when you're toasty or when you're out to prevent unnecessary wear. Using the timer on your thermostat so that it switches off when it reaches a certain temperature or turns on just before you get back from work is best. An annual maintenance contract can be helpful to ensure your system receives these important services at regular intervals.

The Duncan, OK homeowners’ guide to air conditioning services

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