Give us a call! 405-912-5900

Interstate Heating and Air Conditioning has been the loyal provider of HVAC services in Norman, OK since 2002. From AC repair and AC replacement to complete Furnace repair, we are the pros you can trust to get the job done correctly. Our Certified AC technicians, really know heating and cooling and will have your air conditioner or furnace repair done quickly. If you need an Air conditioner installation or a furnace installation, we can help with that too. Ask about convienent financing options for a new HVAC system.

If you want to see why Norman, OK chooses us for heating and cooling when quality is needed, just have a look at our reviews.

UV germicidal lights purify the air by killing up 90% of all microbes, mold spores and viruses. For allergy sufferers and those prone to health problems, UV lights are very beneficial. The UV light in an air conditioning unit is positioned in the system’s return air duct, zapping particles and oxidizing the air as it passes through.

For more information on UV lights, click here or contact us online and one of our knowledgeable team members will be in touch. Our company has been providing indoor air quality solutions to the Norman area for almost 20 years. At Interstate Heating & Air Conditioning, we provide expertise in heating and cooling at an affordable cost, satisfaction guaranteed.

In the Norman area, residents can expect to pay between $3,600 – $6,600 to replace a central air conditioning unit. The end price will be determined by the size of the house, the quality of the unit, and the complexity of the ductwork involved.

Average Cost: $5,000
Typical Range: $3,600 – $6,600

If you think it’s time to replace your AC unit, Interstate can help. We offer free estimates on all of our services, including installations. Our highly trained and experienced technicians are certified so you can rest assured that the installation will be completed with no mistakes. We offer competitive prices on quality units as well as financing options. Contact us online to learn more or to schedule a consultation!

Your air conditioner is freezing up because either something has adjusted your system to cause the evaporator coil to cool more than it should or there is a block in the air flow in your house that is keeping air from transferring its heat to your system. Some ways you can avoid having this occur include:

  • Have a technician check for refrigerant leaks.
  • Change your air filter.
  • Check that the blower fan is functioning properly.
  • Make sure there are no blockages in your condensate drain line.
  • Inspect your vents for any obstructions.

For more information or to schedule a service check, contact Interstate online and one of our knowledgeable team members will be happy to assist you. We are available 24/7 to keep your home cool around the clock.

The average cost for an HVAC repair is around $350-$600 in Norman, OK. Although, the cost of the repair can vary due to the type of repair, the level of the repair and the cost for replacement parts. A refrigerant leak repair can cost up to $1,200 depending on the type of refrigerant your HVAC system uses and how severe the leak is. If your HVAC system uses R22, the repair cost will be higher since R22 has been discontinued and is more expensive to obtain. To get your HVAC system repaired, give us a call today.  

Local Reviews
for Norman, OK

Interstate Heating & Air Conditioning Rated 4.9 out of 5 stars based on 142 customer reviews


Great service!




Review of Interstate Heating & Air Conditioning


Such a pro!




Review of Interstate Heating & Air Conditioning

Love Isaac. Has been to our house at least twice. Welcome anytime! Was thorough, friendly, and explained everything in terms I could understand.


Happy customer




Review of Interstate Heating & Air Conditioning

Isaac is always professional, polite, and gets the job done. He answers our questions and knows his business


heater issue, great service from Brandon




Review of Interstate Heating & Air Conditioning

Brandon was very professional, with a smooth, engaging manner, and was very efficient and explained his work very thoroughly. His "can do" attitude was a great asset to him and his abilities.


Great service




Review of Interstate Heating & Air Conditioning

He got job done fast and great


Excellent Service




Review of Interstate Heating & Air Conditioning


Great service




Review of Interstate Heating & Air Conditioning

Great guys and service!!


Great service.




Review of Interstate Heating & Air Conditioning

Brandon did a great job, very nice and professional


Wonderful service




Review of Interstate Heating & Air Conditioning

Issac offered to put in new filters for me. This is the first time anyone has offered to do that thoughtful service.


Another great service visit




Review of Interstate Heating & Air Conditioning

Thanks for the professional and dependable service.


"Always good gets even better"




Review of Interstate Heating & Air Conditioning

It was good to see Brandon, again. I just wanted to mention the extra mile that Brandon traveled, in addition to his quality service work. When I showed him where our thermostat is, he noticed our old vent in the ceiling. To say it was in disrepair is an understatement. Brandon commented on it, and I told him that we had a replacement for it, but that I hadn't gotten around to putting it up, yet. He said that he'd be glad to do it for me, and did. I don't know about you, but I don't see that kind of service very often.....seldom, I should say. Anyway, thanks to Interstate and, especially, thanks to Brandon!


Great




Review of Interstate Heating & Air Conditioning

Very happy no issues


Most professional




Review of Interstate Heating & Air Conditioning

Kia noose was wonderful. He explained what he was going to do and was respectful of the house. His equipment was first quality and he offered to do extras such as clean out the furnace unit and put in my new filters. He was most professional and courteous and was very pleasant. He explained what he thought would be a good schedule for cleaning our ducts. We were very pleased with his work and professionalism.


Orum




Review of Interstate Heating & Air Conditioning


Great service as always!




Review of Interstate Heating & Air Conditioning

Jared was prompt, friendly, and informative!


Always polite and does a great job!




Review of Interstate Heating & Air Conditioning


Great service




Review of Interstate Heating & Air Conditioning

Quick, friendly and convenient


great work




Review of Interstate Heating & Air Conditioning


Great Service




Review of Interstate Heating & Air Conditioning

The service was professional, quick, and thorough. We are more than pleased!


great work




Review of Interstate Heating & Air Conditioning


Outstanding service.




Review of Interstate Heating & Air Conditioning


Great service




Review of Interstate Heating & Air Conditioning

Technician was a great guy, on time and kept me posted on parts delivery! Thank you


Excellent Professional Service




Review of Interstate Heating & Air Conditioning

I would highly recommend this business to family and friends. Both service professionals and office staff were very helpful.


Great service.




Review of Interstate Heating & Air Conditioning


Wonderful service




Review of Interstate Heating & Air Conditioning

Very easy to get help. Staff professional and kind. Brandon was very knowledgeable about his job and was very sweet!


Mike T.

Mike T.

On April 19, 2021 I wrote to the silver customer for a AC tuneup upon arrival I checked thermostat and thermostat operations I didn’t check the furnace checked blower amp drawls capacitor and then went to the condenser checked components checked charge disassembled washed reassembled and tested system operations outside everything‘s working properly at this time thank you for your business Mike T

Near Goshawk Dr, Norman, OK 73072
Joseph K.

Joseph K.

Arrived on 17 April to for a no heat found that the distribution motor has gone out it’s ecm motor The control board has 28 V on the heating tab BL one has 120 V control board is good customer wants estimate on new motor and possibly a new furnace need to contact on Monday, 19 April to reassess the situation. Left the furnace unplugged at this time so the system will not try to overheat and shut off.

Near Prestwick St, Norman, OK 73072
Mike T.

Mike T.

On April 19, 2021 I wrote a silver club member for a AC tuneup upon arrival I checked thermostat and thermostat operations and then went to the furnace checked amp draw blower cap check the blower and then went to the condenser checked all components checked charge disassembled washed reassembled checked system operations everything is working properly at this time thank you for your business Mike T

Near Kingston Rd, Norman, OK 73071
ISAAC J.

ISAAC J.

Came out to give an estimate for a new construction barn style home. Roughly 1,800 sqft being heated and cooled. Customer stated that he was looking into getting pricing for doing a heat pump system with emergency heat backup in air handler with ductwork being added to 7 rooms. Gave customer 2 estimates based off of what was discussed. Thank you for choosing Interstate to help you in this process!

Near Melody Ln, Norman, OK 73026
Mike T.

Mike T.

On April 12, 2021 arrive to a blue customer for AC tuneup upon arrival I checked thermostat and operations high then checked furnace and draws operations everything‘s good there and then went to the condenser did amp drawls take opponents Jake charge disassembled condenser washed it reassembled checked system operation everything‘s working properly at this time thank you for your business Mike t

Near Sandalwood Dr, Norman, OK 73071
Mike T.

Mike T.

On April 12, 2021 I wrote to blue customer for AC tuneup upon arrival I checked the furnace did amp drawls went to the condenser check and put it to the condenser wash the condenser Checked system operations Everything is working properly at this time thank you for your business Mike t

Near Natchez Dr, Norman, OK 73071
Mike T.

Mike T.

On April 12, 2021 arrive to Blue Shield customer for AC tuneup upon arrival I checked thermostat turned all zones on our then went to the air handler check the air handler open the coil and checked it I then went to the condenser checked all components they’re good check the charge charge was a little off inform customer it needs some refrigerant offered leak check customer declined stated just to get it back where it needs to go with the refrigerant got everything charged up washed up reassembled everything is working properly at this time thank you for your business Mike T

Near Payton Ln, Norman, OK 74857
Joseph K.

Joseph K.

16 wide 22 deep 42 tall

Near River Oaks Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

This is an estimate to replace the existing full system with a new 3 ton system. Gave customer an estimate to replace the furnace,coil and AC. With making a transition from evaporator coil to supply air plenum in closet. Warranties*: 10 year parts 10 year coils 10 year compressor 20 years heat exchanger 1 year labor *warranties on 14 seer condenser are only a 5 year warranty.

Near Briarcliff Dr, Norman, OK 73071
ISAAC J.

ISAAC J.

Came out to give estimate for replacement of the AC. After initial inspection I made homeowner aware that the system is R-22 and replacement of the AC will also require replacement of the Evaporator Coil in the closet above the furnace. The new condenser uses 410a refrigerant, and isn’t compatible with the equipment that is existing. Gave customer an estimate for 3 ton 14 seer AC/Coil and a 3 ton 16 seer AC/Coil. Refrigerant lines can be reused and will be flushed before new equipment is installed. Included making a transition for new coil to supply plenum. Warranties: 10 year parts 10 year coils 10 year compressor 1 year labor

Near Briarcliff Dr, Norman, OK 73071
Mike T.

Mike T.

On April 7, 2021 arrive to a previous customer nonmember for a no cool upon arrival I checked the thermostat it keep doing blower cake dawn like it supposed to and then went down to the condenser and checked voltage at the disconnect opened up the service panel upon opening the service panel the low-voltage wire had broken was just hanging so I disconnected strip the wire reconnected and then tested all system operations everything is working properly at this time if you have any more issues please give us a call thank you for your business Mike T

Near Farmington Ave, Norman, OK 73072
Mike T.

Mike T.

On April 7, 2021 I arrive to a new customer nonmember upon arrival I inspected the thermostat checked operations I then went up to the attic to check the furnace open the coil box took a peek at the coil and tested operations and amp draw at the furnace are then went to the condenser check components did amp drawls disassembled condenser washed it reassembled tested everything in measure things working properly I have no issues at this time everything is working properly at this time thank you for your business Mike T

Near Landrun Ave, Norman, OK 73072
ISAAC J.

ISAAC J.

Performed preventative maintenance on 2 AC systems. Customer had already changed the filters. I inspected the blower assembly, motors, electrical components, wiring, evaporator coils, drains, and overall condition of both air handlers. Cleaned condenser coils thoroughly. Checked thermostat operation, capacitors, contactors, compressors, fan motors, and coil condition of condensers. Surge protectors on both Heat pumps were out. I made homeowner aware and he stated that they had electrical issues recently and blew several surge protectors throughout the home. Customer approved replacement of both surge protectors. I took out old ones and installed new surge protectors. Made sure the green light was lit on both. Checked amps, temperatures and pressures of condensers. Both systems are cooling properly within manufactured specifications at this time.

Near Geronimo Dr, Norman, OK 73026
ISAAC J.

ISAAC J.

Performed preventative maintenance on AC for customer. I asked about how the system has been operating and if they had any issues recently. Other than previous issues we’ve fixed, customer had no other concerns. I changed the filter for customer. Inspected the blower assembly, motor, electrical components, evaporator coil, drains and ductwork. Poured cleaner down condensation drain for customer since they’ve had a clogged drain before. I recommended duct cleaning, since the return duct and some supplies have residue. Cleaned condenser coil thoroughly. Checked thermostat operation, wiring, capacitor, contactor, compressor, fan motor, coils and overall condition and operation of AC. Checked temperatures and pressures of condenser. System is cooling properly within manufactured specifications at this time. I did make a preventative recommendation of replacing the contactor. It was pitted and has signs of wear. Customer approved replacement. I replaced contactor on system for customer.

Near E Cedar Lane Rd, Norman, OK 73026
ISAAC J.

ISAAC J.

Performed preventative maintenance on AC system for customer. Customer changed filters recently. He stated that he had concerns about a supply grill in one of his bedrooms, and asked for me to take a look. He thought it could be mold, but from further inspection is was dust build up that had accumulated on the grill and wall. We took grill off and cleaned it and the wall by the grill. The duct was dirty, so I recommended a duct cleaning on the vents. I also recommended a pan treatment be added to the coil seeing the other one was old. He had me replace the pan treatment. I also cleaned for build up inside the air handler. Told customer that air handlers accumulate growth in them from the air moisture in it. UV lights can help eliminate the amount of build up in the air handler. I cleaned the condenser coil thoroughly. Checked thermostat operation, wiring, capacitor, compressor, contactor, fan motor, amps, temperatures and pressures of condenser. Systems pressures are within manufacture

Near SE 164th St, Norman, OK 73026
Joseph K.

Joseph K.

Found system low on 410A we decided to bid a system for replace vs repair

Near Forest Glenn Cir, Norman, OK 73071
ISAAC J.

ISAAC J.

Performed preventative maintenance on AC system for customer. Customer stated that he’d take care of the filters in the home. I inspected the blower assembly, motor, electrical components, coil, and overall condition of equipment in attic. Cleaned condenser coil thoroughly. Checked thermostat operation, wiring, capacitor, compressor, contactor, fan motor, temperatures and pressures of condenser. Inspected condition of condenser coil where the dog has urinated on it. Coil is exposed on some sides, but no oil residue or any signs of leaks at this time. Condensers condition is degrading. Compressor is loud and may potentially be an issue this summer. Made homeowner aware of condensers condition and what I suggested. I suggested customer see how it performs this summer and look into replacing next spring, if it makes it through.

Near Lorings Rd, Norman, OK 73072
ISAAC J.

ISAAC J.

Performed preventative maintenance on AC system for customer. Asked customer about the furnace holding up during the freeze due to it being a 90% furnace, and he had no issues with it. I inspected the blower assembly, blower motor, electrical components, evaporator coil, UV lamp and overall condition of equipment in attic. Thermostat operation was good. Checked wiring, capacitor, amps of compressor, fan motor, temperatures and pressures of condenser unit. Washed condenser coil thoroughly. System is cooling properly within manufactured specifications at this time.

Near Wellington Pl, Norman, OK 73072
Joseph K.

Joseph K.

29 March 21 arrival to due ac pm checked capacitor for blower was in range but I informed the customer that the capacitor for the compressor as low and she didn’t want to address it at this time. There is no clean out for the ac drain presented a estimate for a jones valve and customer didn’t wish to do it Wright now.cleaned condenser and removed the debris in the bottom of it.

Near Pecan Ave, Norman, OK 73072
Kianoosh M.

Kianoosh M.

Removed IAQ equipment under warranty 1 time move that we installed on 10/23/2020. 2-14x24 polarized media air cleaner with 4 replacement pads and 2 pads in them still. 1 Whole house germicidal air cleaner UVV / UVC la,p system, and 1 whole house Pure Sept HEPA Air cleaner. Packaged equipment for travel, customer is selling current home and will contact us to do an inspection on future homes they are looking at, and once they have settled on their new home schedule to reinstall equipment.

Near Midway Dr, Norman, OK 73072
Mike T.

Mike T.

On March 23 2021 I arrived at a silver club member for a 2 system maintenance upon arrival i checked and tested thermostat the I checked the units one over garage and the second in the second floor attic both units tested good I got them both cleaned up and tested there operation both units are working properly at this time Thank you. Mike T

Near Brownwood Ln, Norman, OK 73072
Joseph K.

Joseph K.

On March 22 2021 I arrived at a blue club member for a furnace tune up upon arrival I checked the heating system amp draw on blower motor and induced motor both checked good I also cleaned flame sensor and and tested ignitor both are good I then checked system operation and the uniy is working properly at this time. I then checked hot water tank and did a 3 minute flush and didn’t find any calcium build up in tank everything is working properly at this time Thank you for your business Mike T

Near Oakmeadows Dr, Norman, OK 73071
Kianoosh M.

Kianoosh M.

Dryer vent cleaning attic discharge. We last did a cleaning on this system in May 2019. This dryer vent is composed of a 3” pvc trunkline with a 4” increased connection to the dryer and 4” rooftop exhaust. The majority of the lint buildup was in the rooftop exhaust, about 2 feet down, with another clog at the entry point where it goes up the wall. Cleaned out dryer vent thoroughly by hand and with spinning brush and commercial vacuum. Reattached equipment and verified proper function. Leaving note in account to have technician servicing for AC tune ups to check the exhaust flap from the ground on the south side roof and make sure it is not clogged. If it is, offer to remove by hand with a level 1 service. This dryer vent may need to be serviced for cleaning every 1 to 2 years.

Near Burkshire Terrace, Norman, OK 73072
Jason B.

Jason B.

System #2

Near Brookhaven Blvd, Norman, OK 73072
ISAAC J.

ISAAC J.

Gave Customer estimate to replace AC and Coil or the option to do a full system. System is a 2 Ton system.

Near Brookhaven Blvd, Norman, OK 73072