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 172 customer reviews


Issac James service today was super.




Review of Interstate Heating & Air Conditioning

Always pleasant and answers my questions. Gives me a good summary what he did and checked. Always pleased with him.


Ac out




Review of Interstate Heating & Air Conditioning

Great service thanks for being so fast


Customer




Review of Interstate Heating & Air Conditioning

Kianoosh was very professional acting and knowledgeable about the task he was performing. He was also very nice and pleasant to talk to.


Wonderful service! Very professional.




Review of Interstate Heating & Air Conditioning

Mike Tabor did a thorough inspection of our furnace and A/C unit. He found that everything was running smoothly and met standard qualifications. I did not have to pay any service charges or fees. Mike was very cordial and very professional. It was a pleasure to deal with him and with Interstate.


Great service




Review of Interstate Heating & Air Conditioning

Did an awesome and thorough job of cleaning dryer vents.


Yearly Tune-up with Isaac




Review of Interstate Heating & Air Conditioning

Isaac was his usual cheerful and professional self, accomplishing his task in an efficient and friendly manner. He is a great credit to Interstate Heating and Air.


Great service & was able to catch the mis-wiring of the capacitor




Review of Interstate Heating & Air Conditioning


Service




Review of Interstate Heating & Air Conditioning

As always, very happy with your professional experience.👍👍


Jake was great!




Review of Interstate Heating & Air Conditioning


Great technician




Review of Interstate Heating & Air Conditioning


Experience is a great Tool




Review of Interstate Heating & Air Conditioning

Rod arrived the same day after my morning request. He listened to my concerns and asked relevant questions. He quickly reached a hypothesis and proceeded to immediately check it out. As he had speculated, our AC was low on freon. I went with him and watched him work. That was just out of curiosity, because I enjoy watching craftsmen do their trade. He explained various things to me as he worked, and I appreciated that. As we are Gold Members, his entire visit was paid for, and we had only to pay for a pound of freon. Considering the heat that we had been dealing with, that was a real bargain. I would estimate that Rod was here about 30 minutes, maybe a little more. He was working the entire time and knew exactly what he was doing. I appreciate Interstate and I appreciate Rod. It's good to work with someone who knows exactly what he is doing!


Always reliable and knowledgeable




Review of Interstate Heating & Air Conditioning


13 year customer




Review of Interstate Heating & Air Conditioning

My wife and I are 13 year customers. Actually, my wife even used Interstate before we were married. Mike was a good example of Interstate quality service. We have a service contract that provides checking our equipment twice a year and making necessary adjustments, replacement of parts at discount prices, and replacement of unit if necessary. I recently called Interstate to set up our bi-annual visit. In my discussion with the home office, I mentioned that our unit was having trouble keeping up with the temperature set on the room temperature and was running 4 degrees above the thermostat setting. It was a Saturday, and scheduled a serviceman to check our unit. Mike was here later that same day. I would have to say that he went the extra mile in provision of service. When I told him I had requested the bi-annual check-up, he told me that they had me down as a regular service call and that they didn't do the bi-annual checkups on week-ends. I explained that I had determined the cause of our 4 degree difference with the thermostat was because I had not activated the separate unit for my office, yet, and that it hadn't been noticeable until the Summer heat increased. That made sense to Mike. He said that he would not charge for a regular service, week-end visit. In fact, he didn't charge me at all. Further, he initialed a week day appointment the next week to come out and do my bi-annual unit checkup. Then, as long as he was already at my home, he tightened some screws on my unit that had caused some rattling noise and changed my air conditioning filters. I think that is beyond what I would have expected for a visit that was initiated by concern that our unit was not working properly. Mike was very good. And, I would say that we have always been very satisfied with every technician that Interstate has ever provided. The owner even came out a couple of times and provided their standard quality care. When I find a person or company that I can count on, I stick with them. You can count on Interstate, and you can count on Mike.


great service




Review of Interstate Heating & Air Conditioning

Great to deal with


Great service




Review of Interstate Heating & Air Conditioning

Everything was just fine


Good




Review of Interstate Heating & Air Conditioning

Good very now person


Excellent Service; Great Price




Review of Interstate Heating & Air Conditioning

Professional, knowledgable, polite, on time.


Nice People, Great Service




Review of Interstate Heating & Air Conditioning

Austin is a nice guy and made my air conditioner cooling again.


Excellent Service




Review of Interstate Heating & Air Conditioning

Austin did a great job and kept us advised during the service.


Amazing service!




Review of Interstate Heating & Air Conditioning

Always do a great job. Fast and knowledgeable.


Emergent request




Review of Interstate Heating & Air Conditioning

Chris came out and was very kind. After hours!! Can’t say enough good about this company. They are tops. Thank you for your patience with me.


Great service by great guys




Review of Interstate Heating & Air Conditioning

Very happy


Excellent service.




Review of Interstate Heating & Air Conditioning

The reason for the visit was my almost 2 yr old system, which you installed, has had an ongoing issue with a freon leak which still has not been locatable. I was only charged for the Freon, but really think I shouldn’t have to pay for it. If it didn’t have a leak, there wouldn’t be a need to add Freon.


Great & Professional service




Review of Interstate Heating & Air Conditioning

Excellent job


The work was done quickly and efficiently




Review of Interstate Heating & Air Conditioning

I Was not happy with the increased price of the filter.


Joseph K.

Joseph K.

I arrived for a gold member fall tune up. I spoke with the homeowners and found that the storm may have damaged the condenser. I inspected the furnace in the attic and checked all electrical components and all duct work. I forgot the return plenty to be undersized for this gas furnace. This is causing stress on the furnace and cause it to have a high temperature rise through the furnace. All electrical components are running properly at this time. We then inspected the condenser and found it to be in fair condition. The storm did not damage the condenser beyond it’s normal use or age. I recommended to have the system replaced due to age.

Near Dustin Dr, Norman, OK 73071
Kianoosh M.

Kianoosh M.

Blue Shield protection plan fall service. With service today, replaced Stand that was discussed with previous service. With two men, lifted condensing unit, pad and pump ups in place and removed cinderblocks, drain pipe and P gravel and replaced with new metal stand. Leveled out P gravel, cleaned off cinderblocks and removed any excess in additional debris to clean up area neatly. Perform fall service on air handler and heat pump. Inspected 20 x 30 filter and will replace with today’s service. Checked amp draw‘s, sequencers and indoor delta T. Found outside unit capacitor to be reading week on fan side two out of 5 µF, outside fan blower there’s also reading high on the amps 1.17 out of 1.10 A. With customer approval, replaced dual capacitor under parts warranty, checked amps again and compressor and fan amps are significantly lower. System running well within manufacture specs at this time.

Near Cavecreek St, Norman, OK 73071
Jason B.

Jason B.

14OCT2021 Jason B Arrived for club member no cool. Spoke with Cathy about what was happening. She recently had a thermostat installed with mobile app control capabilities, and the system never came on afterwards. Inspected tstat, inspected furnace. Found the drain pan full of water. Vacuumed out drain line, and pan. Flushed drain with 2 liters of water and added a pan treatment to prevent further blockages. While I was here, the alarm company who installed the thermostat was out and addressed issues with the app. This system is running properly at this time.

Near Lochinver Dr, Norman, OK 73069
Mike T.

Mike T.

On October 13, 2021 I arrive to a Blue Shield customer for a fall tuneup upon arrival agree to the customer they stated that there was something in the vent climbed up and found the vent has some insulation in it from replacing the ductwork cleaned it out die then changed one 14 x 30 x 1 filter and one 24 x 14 x 1 filter and then went to the thermostat turned it to heat turned it up and then climbed in the attic did amp drawls on the inducer motor checked the gas pressure it was at 3.3 I then pulled and cleaned the flame sensor I checked the blower capacitor and did amp draws on the blowerAnd then tested overall system operations and temp rows everything’s working properly at this time thank you for your business Mike T

Near Marbel Dr, Norman, OK 73069
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Blue shield fall service. Dual fuel. Furnace- blower motor run capacitor checked good, motor and wheel are clean, hot surface ignitor checked good, cleaned and checked flame sensor, pressure switch checked good, all limits and safeties checked good, manifold pressure is 3.5 in wc, within mfg specs, air temperature rise is 35 deg within mfg specs. Carbon monoxide 0ppm. Furnace operating normally. Heat pump- washed condenser coil, dual run capacitor checked good, contactor is good, checked operation, all amps and pressures are good. Initiated defrost, reversing valve shifted to cooling and condenser fan motor shut down, one minute later reversing valve shifted to rest mode and condenser fan motor resumed operation. Defrost control board and unit operating normally.

Near SW 158th St, Norman, OK 73069
Joseph K.

Joseph K.

I arrived for a silver member fall maintenance. I inspected both systems and found the surge protector on the upstairs air handler to have failed. I made this aware to the homeowner and we decided to replace the surge protector. I found no other issues with this air handler or condenser. I then inspected the downstairs system and found a small tree and vines to be growing into the heatpump. I removed alol vines and dug up the tree. I then used a weed eater and cleared all tall debris from behind both condensers and leveled the ground between both condensers. Overall both systems are running and working properly at this time.

Near Geronimo Dr, Norman, OK 73026
Joseph K.

Joseph K.

I arrived for a fall maintenance on a silver customer. I inspect the furnace checked co levels and the temperature rise. I found the furnace to be getting in poor shape due to age. Tho the system is preforming properly at this time.

Near Benny Bruce St, Norman, OK 73026
Kianoosh M.

Kianoosh M.

Spoke with customer about needs for new home, and we will come back to install 2 24v whole home germicidal UVC lamps 11OCT2021 returned to install Both UVC Lamp air purifiers. Extended wiring and cleaned blower cavities from new construction dust. Installed both air purifiers in most ideal spots ahead of evaporator coils in the supply plenums and installed port holes. Tested and verified proper operation and went over detailed on UVC air purifier function with customer. Also left information about our service plans with customer.

Near Epora Dr, Norman, OK 73071
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Blue shield fall service. Homeowner had recently replaced filters, left two filters, blower motor is ECM, run capacitor not required, motor and wheel are clean, condensate drain is clear, hot surface ignitor checked good, cleaned and checked flame sensor,pressure switches (2) checked good, all limits and safeties checked good, inducer motor run capacitor within limits, inducer motor run load amps are good, manifold pressures are within mfg specs (low 1.5 in wc high 3.5 in wc) air temp rise was 45 deg, checked gas piping for leaks, none found. Carbon monoxide 0ppm. System operating normally.

Near Wellington Pl, Norman, OK 73072
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Blue shield fall service. Replaced filters (4). Blower motor run capacitors (2) are good, blower motors and wheels (2) are clean, hot surface igniters (2) are good, clean and checked flame sensors (2), pressure switches (2) are good, all limits and safeties are good, manifold pressures (2) are within mfg specs. Carbon monoxide 0ppm. Checked all accessible gas line for leaks, none found. Main system air temp rise 48 deg, master bedroom air temp rise 39 deg, both within mfg specs. Both system operating normally. Cleaned electronic air cleaner cells (4).

Near Wandering Oaks Ct, Norman, OK 73026
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Silver club fall servicex2. Furnace- Replaced electrostatic filter media that homeowner provided, blower motor is ECM, no run capacitor required, motor and wheel are clean, hot surface igniter is good, cleaned and checked flame sensor, pressure switch checked good, inducer motor run load amps are good, manifold pressures are good ( low-1.5 high- 3.5) within mfg specs. Carbon monoxide 0ppm. Checke gas piping for leaks, none found. System operating normally. Mini heat pump- washed condenser coil, checked all electrical connections for tightness, checked operation, amps and pressure are good, had 30 deg air temp rise. System operating normally

Near Lee St, Norman, OK 73069
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Blue shield fall service. Blower motor run capacitor is good, motor wheel are clean, condensate drain is clear, hot surface igniter is good, cleaned and checked flame sensor, pressure switches (2) are good, all limits and safeties are good, manifold pressure is 3.5 in wc, at mfg specs. Carbon monoxide 0ppm. System operating normally. Replaced filter.

Near Jean Marie Dr, Norman, OK 73069
Chris  D.

Chris D.

Arrived on third of October for an air condition no cool found that the high pressure limit switch was tripped on the condenser attach my gauges found there was no refrigerant in the system for 410a customer authorize pressure test found that the terminals on the compressor were blown customer wants an estimate to replace compressor I will have to talk to him about limit switch. Due to the age of my overall recommendation is replace the system.chris

Near Jackson Dr, Norman, OK 73071
Chris  D.

Chris D.

Arrive on 3 October for an air conditioning oh cool part inspection found that the fuse going to the condenser had blown due to the storm that they had on Friday. Recommended surge protector

Near Boyd St, Norman, OK 73071
Kianoosh M.

Kianoosh M.

Gold Club Memebr Duct cleaning inspection, after speaking with customer, they would like to have all ducts cleaned, 15 supplies and 3 returns and have the furnace tuned up for the fall as well. Customer also had an issue with the condensate drain dripping some water into the garage ceiling drywall, so I releveled it and made notes to make sure future techs know it is connected to an open clean out. Will return 01OCT2021 to come pleat tune up and duct cleaning. 01OCT2021 returned to complete duct cleaning and fall tune up. Layed drop sheets where needed. Removed vents and cleaned with spinning brush. Cleaned grills with disinfectant wipes and spinning brush. Duct cleaned supplies and 1 return with 1-4 passes each. Duct cleaned 2 older returns with 12 and 13 passes. Sprayed in hospital grade disinfectant spray. Replaced vents and grills and cleaned up excess debris. Furnace tune up 80% gas furnace with heat pump split system. Washed heat pump coil outside thoroughly, making sure to c

Near SE 37th St, Norman, OK 73072
Joseph K.

Joseph K.

I arrived for a new customer no no heat call. I first spoke with the homeowner and for that the system will not run in heat or cooling. I inspected the indoor furnace and found the control board to be burnt. I made this aware to the homeowner and d suggested to repair the control board. The homeowner did not want to replace the control board at this time. I offered to replace it with a discount and at the warranty cost. The homeowner still did not want to go through with the repairs.

Near Queenston Ave, Norman, OK 73071
Joseph K.

Joseph K.

I arrived for a blue member fall maintenance. I inspected the furnace and checked all electrical components gas pressures and temperature rise. I found the heat exchanger to have some heat stem the system but I found no readings of CO at this time. Overall this system is running properly at this time

Near Brunswick Ln, Norman, OK 73072
rodneys@interstateheatandair.com

rodneys@interstateheatandair.com

Silver shield fall service. Blower motor run capacitor is good, motor and wheel are clean, indoor coil is clean, condensate drain is clear. Cleaned and checked flame sensor, hot surface igniter is good, pressure switch checked good, manifold pressure is at 3.5 in wc, inducer motor run load amps are good, rated 3.3 rla, actual 2.5 rla, air temp rise is 57 deg. System operating normally.

Near Moorgate Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

Came out to perform the preventative maintenance on equipment. Asked customer about systems operation and filtering. Filter will be changed out next service. I inspected the blower assembly, motor, electrical components, burners, flame sensor, igniter, inducer motor and overall condition of equipment. Cleaned flame sensor and brushed dust off the components. Cleaned out humidifier pan and changed the humidifier pad. Checked thermostat operation, amps, temperatures and gas pressures. Checked all safeties and system sequencing. Unit is heating properly within manufacture specifications.

Near Tecumseh Ridge Ct, Norman, OK 73069
ISAAC J.

ISAAC J.

Performed preventative maintenance on Furnace. Customer keeps filters changed regularly. I inspected the blower assembly, motor, electrical components, burners, flame sensor, igniter, safety switches, and overall condition of equipment. Cleaned flame sensor and brushed dust off of equipment. Checked thermostat operation, wiring, amps, temperatures and gas pressures. System is heating properly.

Near Eaton Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

Came out to call for an AC not cooling and blowing a fuse. Customer stated her son was going to fix the problem, but is out of town. I checked system over and found the contactor was blowing the fuse. Checked for continuity in my wires and they were fine. When the control board sends 24 volts to the contactor it immediately shorts. Told customer what the issue is and what the repair needed was and also discussed pricing. Replaced the contactor on the unit and cycled system back on. AC was operating properly with no issues. Customer stated their son is replacing the system this fall, and didn’t need any other servicing done on it.

Near Sunrise St, Norman, OK 73071
Kianoosh M.

Kianoosh M.

3 system silver club fall tune up, furnace for main downstairs part of home is in garage, furnaces for downstairs master suite is in upstairs attic and furnace for upstairs is in upstairs hallway. All Thermostats working well, and per customer approval, will change filters today. Checked main downstairs unit and there was a lot of old dryer lint into eh closet cavity from an old dryer exhaust vent. Shop vacced the majority of the lint to help reduce the chance of it being a potential fire hazard, or clogging up the equipment. Checked combustion chamber and checked evaporator, blower, inducer, inducer capacitor and heat exchanger from blower side. Changed 3 10x20 filters. Cycled system on and checked for carbon monoxide, gas pressure, amp draws at both speeds, heat rise and static pressure. Checked master suite unit and changed 20x24 filter. Checked combustion chamber, flue, return ductwork, bower, heat exchanger,!inducer and inducer capacitor. Cycled system on and checked for carbo

Near Brookhaven Blvd, Norman, OK 73072
Mike T.

Mike T.

On September 29, 2021 I arrive to a Blue Shield customer for a condensate leak upon arrival agree to the customer I then climbed in the attic to check the drain line it was clogged cleared it out poured water down it is draining now customer stated that they wanted to install a sound blanket on the compressor they said they’ll order it off Amazon and then call us to have us install it tested system operations everything is working properly at this time thank you for your business Mike T

Near Dakota St, Norman, OK 73069
Kianoosh M.

Kianoosh M.

Fall furnace tune up on 2014 Carrier 80% gas furnace. Customer just changed filters when they scheduled appointment, and thermostat is operating well. Cleaned flame sensor, checked hoses and wires on inducer, checked blower capacitor and blower. Checked heat exchanger and both plenums. Cycled system on and checked gas pressure, heat rise from return to supply plenum and amps in motors. Checked combustion air and attic insulation. Heat and air system is working well at this time. We had talked about the hot water tank last fall, unit is working well at this time as well.

Near Waterfront Dr, Norman, OK 73071
Mike T.

Mike T.

On September 28, 2021 I arrive to install a new compressor I remove the old compressor installed the new one braised it in and then pressure tested pulled a vacuum down to 490 µm then I added the refrigerant back into the system did amp draw‘s on the compressor compressor is good I did have to change the breaker to the compressor when I went to put the main panel back on the breaker panelI heard buzzing in arcing I looked and I seen the breaker was arcing in the feed not the line inform customer still need to contact and electrician to see what’s going on there but everything that I have done is good Phone September 15, 2021 I installed a new condenser fan motor got it installed want to start the system and the compressor sound like it had marbles in it it was pulling 98 amp Put a hard start kit on it to see if that would help didn’t do anything the breakers tripping immediately once I put the disconnect in check the windings I did a continuity test to ground it’s not short

Near Briar Meadow Rd, Norman, OK 73071