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.

Local Reviews
for Norman, OK

Interstate Heating & Air Conditioning Rated 4.9 out of 5 stars based on 134 customer reviews


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!


Duct Cleaning




Review of Interstate Heating & Air Conditioning

Kianoosh Moeini did an excellent job in cleaning our ducts. He recommended only the services that we needed to have complete, and advised us on other areas to consider in the future. I love the culture of Interstate Heat and Air. All the technicians are extremely professional and honest. Nobody ever tries to “pull one over” on you and recommend extra services or parts you do not need. So thankful for this company and the professionalism that they model. I recommend them to all my friends and family!


Professional




Review of Interstate Heating & Air Conditioning


Competent Technician




Review of Interstate Heating & Air Conditioning


Great service as always.




Review of Interstate Heating & Air Conditioning


Amazing service




Review of Interstate Heating & Air Conditioning

Need an HVAC company to work on your system? Look no further. As a person who personally strives for high quality work it’s extremely hard to find high quality contractors to work at your house. Interstate is hands down the best HVAC company in the OKC metro. Honest, reliable, friendly, are just a few of the amazing qualities this company and its employees exhibit.


Absolutely satisfied with the service.




Review of Interstate Heating & Air Conditioning

Called to set up appointment, they came same day.


Service




Review of Interstate Heating & Air Conditioning


Great Service




Review of Interstate Heating & Air Conditioning


Kianoosh M.

Kianoosh M.

Duct cleaning inspection for home with down flow system. Ductwork is transite composite and is coming in pretty far in some spots, needing a narrower cleaning method than the standard contact cleaner. Will perform level 2 cleaning on these ducts. Returns will also need a level 2 cleaning. Will also set up customer in white shield plan and perform a heater tune up on plan today. Will also replace some thermostat wire in air conditioner that previous homeowner dogs had chewed through and set and level condensing unit. Layed drop sheets where necessary. Removed supplies and return vents cleaned with spinning brush. Cleaned supplies with narrow brush and vacuum attachment with 3 passes each. Vacuumed out excess debris. Sealed living room duct due to rusting out slightly. Cleaned returns with 9 passes each. Perform furnace tune up and inspected ductwork, evap coil, blower, inducer, cleaned flame sensor, checked gas pressure and carbon monoxide levels. Changed filters included with plan.

Near Rolling Stone Dr, Norman, OK 73071
Joseph K.

Joseph K.

I arrived to preform a fall maintenance on a single unit. I first inspected all filters and found them to be the same filters on last service. I replaced all filters with new filters. I recommend to have the filters replaced every three months. I also found the supply grills to have some dirt buildup in the boot and duct work. If you replace the filters every three months at a minimum we can keep the system cleaned and limited the breakdowns on the system. I recommend to have a duct cleaning on this system.

Near Nebraska St, Norman, OK 73069
Kianoosh M.

Kianoosh M.

Duct cleaning for home with 11 accessible supplies and 2 returns. The returns are undersized by about 800 cfm. This can lead to system strain over time and not enough air out of supply ducts. Home has a heavy amount of pet dander, and the dust has collected in the ductwork as well over time. The system was recently replaced about 6 months ago. Layed drop sheets were necessary. Removedbsupply vents and return grills and cleaned with spinning brush. Cleaned supplies with 3 passes each. Cleaned both returns with 11 passes each. Sprayed in hospital grade disinfectant spray and replaced 14x24 filters. System is working well at this time. Strongly recommend having filters changed monthly. Also recommend duct cleaning every 3 years. Spoke with customer about our service plans.

Near Wilderness Dr, Norman, OK 73071
Joseph K.

Joseph K.

I arrived for a silver member fall tune up. I first spoke with the homeowner and found that they had no issues with the systems operation. I inspected the indoor system and checked all electrical components and found that the evaporator coil and blower wheel has growth buildup on the surface. I the inspected the heat pump and for the surge protector to to not be operational. I recommend to add two new surge protectors to the indoor air handler and to replace the surge protector on the heat pump. I also recommend to add a UV light to the air handler to kill and prevent any further growth from getting the system any dirtier. Overall this system is running properly at this time. If you have any questions please contact us and we will be happy to help you out in anyway possible. Your friends at Interstate. Customer decided to not purchase the surge protectors I could not take them off the ticket at this time. I notified the office about this issue.

Near 180th Ave NE, Norman, OK 73026
Brandon N.

Brandon N.

Arrived to service call customer stated smoke alarms went off last night. Filters were pretty dirty. Visually checked heat exchanger no issues found. No water around unit. Ecm motor and induced draft motor amp draw in range. Blower and evaporator are clean. Is possible dust burnt off system due to very dirty filters. Cycled unit multiple times and was unable to see smoke or any issues with system at this time. Customer though pressure switch might be acting up. I wasn’t able to confirm that at this time. System is heating at this time. We will follow up with customer before making any further repairs or replacement decisions. Customer has my cell number and will send video to me if malfunctions again and send me codes. System is heating at this time.

Near Bear Mountain Dr, Norman, OK 73069
ISAAC J.

ISAAC J.

45 3/4” X 45 3/4” (Length x Width) Return and Supply 18x12 (width x depth) Return on left side Supply on right side Gave quote for Carrier system. Will get a quote from Goodman tomorrow.

Near E Brooks St, Norman, OK 73071
Kianoosh M.

Kianoosh M.

Mid season IAQ checkup, cleaned and replaced both micro power guard air cleaner pads and grills. Also cleaned out return grills. Checked HEPA filter and UVC UVV lamps. All systems working great at this time. Will set out to come out every 3 months to keep system tuned up and air cleaning filters freshly changed.

Near Midway Dr, Norman, OK 73072
Blake S.

Blake S.

Preformed fall service on 80% furnace checked amps on all motors cleaned flame sensor ran system through heat cycle customer changes filters regularly 😁. System operating correctly at this time I enclosed the information about indoor air quality product for you to review customer had hot water tank installed a year ago and would like it flushed this spring.

Near Victoria Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

Performed preventative maintenance on furnace for customer. Filters were changed within the month. I inspected the blower assembly, blower motor, electrical components, heat exchanger, burners, flame sensor, ignitor, gas valve, inducer motor and overall condition and operation of equipment. Cleaned flame sensor and brushed dust off the burners. Checked thermostat operation, wiring, capacitor, amps, temperature rise and gas pressure. Made homeowner aware of amp rating the inducer motor has and what it is pulling. Amp rating for the motor is 1.9, and after the system runs for a little while the amps start to rise from 1.8 to 2.1 on the motor. Recommended that if heater starts acting up that they should have us out to look at it again. Went over repair vs replace options with customer. System is heating properly at this time.

Near Creekside Ln, Norman, OK 73071
Blake S.

Blake S.

Preformed fall service on condensing comfortmaker furnace checked capacitor it read within manufacturer spec. Inspected evaporator and blower assembly both look good customer changes filters regularly😁cleaned flame sensor amps on all motors looked good all the ductwork and dryer vent all looked good system operating correctly at this time.

Near Moorgate Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

Performed preventative maintenance on furnace for customer. Customer is going to change filters out. I inspected the blower assembly, blower motor, heat exchanger, coil, burners, flame sensor, ignitor, gas valve, inducer motor, safety switches and overall condition of equipment. Cleaned the flame sensor and brushed dust off the burners. Checked thermostat operation, capacitor, wiring, amps, temperature rise and gas pressure. System is heating properly within manufactured specifications at this time. Surge protector is still operating.

Near Golden Oaks Dr, Norman, OK 73072
Blake S.

Blake S.

Found system running fine but the tenant says there’s now too much air adjusted grills in bedrooms the tenant learned about air flow the system is running correctly at this time.

Near E View Dr, Norman, OK 73071
Blake S.

Blake S.

Preformed fall service on condensing Amana furnace cleaned flame sensor checked amps on motors the ductwork is outdated but in pretty good shape saw some lint around pipe mentioned this to customer and she said she had someone out to clean a while back they just did not seal all the way I taped the joint so lint will stop blower motor running good amps. The system is operating correctly at this time.

Near Reginald Dr, Norman, OK 73072
ISAAC J.

ISAAC J.

1-1-2021 Came out to call. Customer stated that the heater wasn’t heating properly, and it was starting to get cold in the home. It worked after she called in for a little bit then it quit again. I checked system over and found the inducer motor wasn’t starting up. I hand spun it and got it to go for about 30 seconds then it quit. System is a 90% furnace and the part supplier is closed due to it being New Year’s Day. Let customer know that I would have to put an order in for it Monday and come back to repair it then. Picked up a portable heater for customer to use during this time. 1-4-2021 Came out to replace the inducer motor. Unhooked all components to inducer motor assembly. Took out old assembly, replaced gasket and installed new one. Reinstalled all tubes and wiring to new inducer motor assembly. Attached ground wire to ground. Cycled system on and checked operation of motor and checked amps, temperatures and pressures. System completed a full heating cycle before I left.

Near Truffula Cir, Norman, OK 73069
ISAAC J.

ISAAC J.

Performed preventative maintenance on furnace for customer. Changed filters out for customer. Inspected the blower assembly, blower motor, heat exchanger, burners, flame sensor, ignitor, gas valve, inducer motor and overall condition of furnace and equipment. Cleaned flame sensor and brushed dust off the burners and components. Checked thermostat operation, wiring, capacitor, amps, temperature rise and gas pressure. Tested pressure switch and safety switches. Overall system is still operating properly. Made homeowner aware of some things I noticed. System is 15 years old and has some components starting to wear due to age. Heat exchanger has some hot spots, and inducer motor is close to max amps. Due to age and a potential refrigerant leak in system, I recommended customer prepare to replace system soon, rather than make costly repairs. System is heating properly within manufactured specifications at this time.

Near 24th Ave SE, Norman, OK 73071
Jason B.

Jason B.

Start fitting, 90, 2’, 12” adj, 4’, 5’, collar, cap, all 4”.

Near Marbel Dr, Norman, OK 73069
ISAAC J.

ISAAC J.

Came out to call. Customer stated that his sister is renting the home and landlord wouldn’t answer the phone. He was going to handle the bill for today. System is from 1983, and in rough shape. I let customer know condition of system before I began diagnosing. I checked the furnace over and found the pilot light out. I lit pilot light for customer and the turned the gas valve back on and the system started working again. I noticed the thermocouple is worn out, and made customer aware of that too. He wanted to give this information to the landlord so he can fix it or replace it. System is heating properly at this time. No guarantees it will last.

Near Belknap Ave, Norman, OK 73072
ISAAC J.

ISAAC J.

Came out to call. Customer stated that the heat pump system wasn’t coming on outside, but the auxiliary heat was working. We were out recently to replace the evaporator coil. I checked system over and cycled the heat pump on from the thermostat and the heat pump started up with no issues. I checked heat pump pressures and found system to be operating within range. Customer also stated that it’s been off all weekend, and wouldn’t come on when he turned it on from the thermostat. I reminded customer that the heat pump has an outdoor thermostat that shuts off the heat pump when the temperature drops below set point. Temperatures have been below set point for a few days, and are above set point today. System is operating properly. Customer is now aware of set point temperature and why it shuts off.

Near E Lindsey St, Norman, OK 73026
Blake S.

Blake S.

Preformed fall service on condensing furnace testespd capacitor it read 7.4 of 7.5 the amps on induce draft motor where a little high read 1.6 of 1.8 amps cleaned flame sensor blower amps where good at 4.2 evaporator was clean customer changes filters regularly 😁😁. Blower wheel was clean asked customer if clothes took longer to dry than what she thought they should customer said no but did say she does see more accumulation of lint at the seems I informed her this was due to a build up of debris in the pipe and cleaning it would prolong life of the dryer. Visually inspected hot water tank it’s a 2005 Mdl asked customer about shortage of hot water she said it does take the hot water more time than it should to reach sinks and such and informed her that there is just some sediment in the tank she exspressed that she didn’t want it to pop the valve and water go everywhere I told her I would put an estimate in my notes about replacement but also stressed to her that I wasn’t sa

Near Merkle Dr, Norman, OK 73069
Joseph K.

Joseph K.

I arrived to inspect two hanging heaters that are in a working bay. This bid is to replace the furnace, flue and hanging brackets. Both furnaces will still operate on one thermostat. Both systems will be natural gas 100,000 btu furnaces. Both systems will come with a one year labor warranty and a two year parts warranty and a 10 year heat exchanger warranty.

Near Atchison Dr, Norman, OK 73069
Brandon N.

Brandon N.

Performed silver club heating maintenance. Customer changed filter recently. Evaporator coil is clean. Blower motor is getting pretty dirty. Suggest pulling motor and cleaning blower. Customer would like to wait to perform cleaning at this time. Thermostat is a few degrees off customer is aware and wants to keep current thermostat at this time. Found lots of rusting on evaporator coil wich may cause refrigerant problems in future. We will test refrigerant levels in spring tune up. Capacitor and motor amp draw in range. Tested sequencers and limits all are working properly at this time. Test element amp draw it is right at run load. Cycled unit multiple times to insure that all safeties are working and unit running as designed. Customer wants to wait and see what happens with system before making any repair or replacement decisions. System is heating at this time but is starting to show its age. I do suggest replacement be considered in future only due to age. System is heating at this

Near E Tecumseh Rd, Norman, OK 73026
Brandon N.

Brandon N.

We were out recently to perform tune up. Customer stated could smell propane. Cycled unit multiple times and was unable to recreate smell at this time. Will leave ticket open for now and see what happens with system and follow up with customer.

Near 144th Ave NE, Norman, OK 74857
Brandon N.

Brandon N.

Showed customer how to reset filter codes and how to properly use minisplit settings. Manual to system was not very informative. I will check with vendor to see if something was missing and follow up with customer. Informed customer that at worst case scenario I would print or email additional info from internet.

Near Grover Ln, Norman, OK 73069
Brandon N.

Brandon N.

Performed gold club furnace maintenance. Customer changes filters regularly. Cleaned flame sensor and tested ignitor. Test induced draft motor. Test capacitor and motor amp draw. All capacitors and motor amp draw in range. Blower and evaporator are fairly clean. Gas pressure and temperature rise in range. Cycled unit multiple times to insure that all safeties are working and unit running as designed. System is heating at this time. Suggest adding surge protector to furnace to protect furnace electronics. 149.00 installed 3 yr 7500.00 manufacturer warranty with install.

Near 48th Ave NE, Norman, OK 73026
ISAAC J.

ISAAC J.

Performed preventative maintenance on Lennox furnace. Replaced filters for customer. Inspected blower assembly, blower motor, electrical components, heat exchanger, burners, flame sensor, ignitor, gas valve, inducer motor and overall condition of furnace. Heat exchanger has some wear on it, but no cracks found at this time. Cleaned flame sensor and brushed dust off the components. Checked amps, temperatures and gas pressure. System overall is heating properly within manufactured specifications at this time. Customer has 2 systems and they were both originally on the maintenance plan. Discussed with customer about other system. Customer will sign other system up when it’s time to renew.

Near Merrywood Ln, Norman, OK 73069