Our Services:
Looking to upgrade your cooling system? Our professionals specialize in the seamless installation of a wide range of air conditioning units, tailored to suit your space and budget. From central air systems to ductless mini-splits, we handle it all with precision and expertise.
At Interstate Heating & Air Conditioning, we pride ourselves on delivering top-tier heating and air conditioning services in Oklahoma City, OK since 2002, to ensure your comfort in every season. With years of experience, our team of expert technicians is committed to providing affordable, reliable and efficient solutions for all your HVAC needs. Whether it's installation, repair or maintenance, the Pros at Interstate have got you covered.
Frequently Asked Questions
The size of your HVAC system depends on various factors such as the square footage of your home, insulation levels and climate. It's best to consult with a professional HVAC technician who can perform a load calculation to determine the appropriate size for your specific needs.
What our customers say about us
Let your neighbors tell you why, we are the Pros! Your satisfaction is
our highest priority. We guarantee it.
Local Reviews
for Oklahoma City, OK
Excellent Service
PAM - Oklahoma City, OK 73129
Representative came out to inspect the site and explained the process. Very knowledgeable and responsive when I had other questions after his visit. Great value considering the time and knowledge of installing the mini split heat pump.
Excellent service
PAM - Oklahoma City, OK 73129
Very knowledgeable on installation of mini split. Came out the next with unit installed at about 6 hours and next day to install drain. Nice and professional technicians.
Well done, as usual.
EVA - Oklahoma City, OK 73117
Good service.
Excellent Service!
CHARITY - Oklahoma City, OK 73102
Excellent service
SANDRA - Oklahoma City, OK 73139
Reliable honest service is always expected, however with Interstate & Isaac that's what you get each time.
Excellent Service!
DON - Oklahoma City, OK 73120
Jason was great as usual, did the work and explained everything to us. We feell very blessed to have him for tech.
Very good service and communication.
Mary Ellen Baket - Oklahoma City, OK 73162
Very knowledgeable.
consistently excellent service by knowledgeable technicians
Robert - Oklahoma City, OK 73112
Friendly and Quick
JOSH - Oklahoma City, OK 73135
Good Job!
JOE - Oklahoma City, OK 73150
Good job Interstate HVAC!
Great service
DEBBIE - Oklahoma City, OK 73128
Prompt response
Ray - Oklahoma City, OK 73135
Good people
Heating check up
FRED - Oklahoma City, OK 73170
Joe is very professional and informative. I'm very pleased with his work.
Excellent service
Julie - Oklahoma City, OK 73128
The team is great and very informative would recommend !
Excellent service
LOUIS - Oklahoma City, OK 73135
Service tech arrived on time. Explained everything in plain English. Customer service rep I talked to on the phone to make the appointment was great
ISAAC J.
Came out to call to recheck system and verify issue. Customer stated that the electrician needed to have the unit removed to access the electrical, but then stated it could be the thermostat. I checked system over and did come to the same conclusion about improper power to the unit and it causing issues with the relays inside the system. The thermostat was not the cause of the problem. Explained to customer about the issue and what’s needed to resolve it. Customer wants us to come back out Monday to pull the unit, so the electrician can fix the power problem, and then we will reinstall it. Dec 9, 2024 Isaac & Andrew Came out to pull a pancake air handler out of a closet space to allow an electrician to fix the main voltage issue. Pump down AC system and then disassembled the air handler. Allowed time for the electrician to come and fix the problem. Came back and reinstalled the air handler back in place. Brazed line set back in and pressure tested unit. Ended up finding a leak in the
Thomas M.
12-9-24. Called customer to follow up no answer
Thomas M.
Tom M. 12-9-24. Remove and dispose old equipment. Install Basic single stage 80% gas furnace. Includes tax, labor and materials. Customer has pre paid for the install
Thomas M.
Tom M. 12-9-24. Customer stated the furnace won’t heat. Found seized induce draft motor. Customer has elected to upgrade the furnace install is scheduled for tomorrow afternoon
Thomas M.
Tom M. 12-9-24. No heat. Customer stated the furnace won’t come on. Started at the tstat noticed it set to heat and turned up above the indoor temperature calling for heat. Moved to the furnace. Noticed no call for heat on W. Jumped the furnace out the furnace comes on as normal. Moved back to the thermostat jumped r and w. The furnace comes on and runs. Customer has decided to replace the faulty thermostat. After replacing the thermostat and establishing a call for heat the furnace runs then throws a 33 high temperature limit fault. Checked gas pressure and noticed it’s at 4 inwc so I adjusted to 3.5. System is running without throwing any codes at this time. Advised the customer that rumbling noise is coming from the blower motor when the internal magnets are shifting phase. Recommended signing up on maintenance plan to help avoid future break downs. Customer is not interested at this time
Joe R.
Blue shield club heater maintenance. Joe(JC)R. 12/09/2024 Performed full system system evaluation and safety inspection. I arrived to perform the customer’s annual heater maintenance. The customer didn’t have any questions and said that everything was running well. I then checked the furnace. The heat exchanger was in good shape and the heater components were running well. I replaced the filler for the customer. The system is operating correctly at this time. The customer wants to have the dryer vent cleaned next time we are out.
Thomas M.
Tom M. 12-9-24. Water leak. Spoke to the secretary she stated there are a couple water stains on the ceiling tiles. Air filters are clean. No ice on coils. To cold to check refrigerant pressure both systems are currently running in AC mode. Noticed drain pans have water in them. The outlet of the drain pan and traps clogged with sludge and debris. Cleared drain pans and traps systems are draining properly recommend adding pan treatments to help avoid future drain issues. Pan treatments will need to be replaced annually. Added pan treatments to both units.
Thomas M.
Tom M. 12-8-24 no heat. Customer stated we was out a couple weeks ago and the furnace is not working again. Noticed circuit board flashing a 226 code which means high pressure switch failed closed. After a couple minutes the furnace came on and operated as normal. Ensured the drain line is clear flue is strapped up properly. Pulled all hoses related to the pressure and made sure they’re clear. Advised the customer there could be a few potential problems causing this and intermittent pressure switch sometimes are not straight forward to solve would recommend starting with replacing the pressure switches. Customer is going to wait until the unit breaks down again
Thomas M.
Tom M. 12-7-24 no heat. Customer stated the furnace won’t heat. Found failed circuit board. Circuit board if flashing a code 3 pressure switch stuck open error when it’s not. Verified switch has 24 volts on one side then closes as normal. Recommended upgrading the furnace due to age. Customer stated she has to get with her bank on Monday to have fraud protection removed in order to run credit and will call us back for an estimate.
Thomas M.
Tom M. 12-7-24 customer called in to have his humidifier turned on. Set humidistat where customer requested me to. He asked I set it at 2 then slowly turn it until it reads 1.
Joseph K.
Jake Kring. I arrived for a no heat call on a previous customer. I spoke with the tenant and he explained that the system will not heat. I inspected the system and found it to be on lock out. I looked farther into the system to see why it was locked out and found the heat exchanger to be cracked in multiple spots. I contacted the homeowner and explained my findings and that we are planning to get together this coming Thursday to go over the system replacement options.
ISAAC J.
Came out to perform preventative maintenance on furnace for customer. Discussed maintenance being provided, if filters needed to be changed, and any issues customer may be having, if at all. Customer stated he changed the filters this week and so far the system has been running fine. I inspected the blower assembly, motor, electrical components, evaporator coil, heat exchanger, heating components and overall condition of equipment. Found heat exchanger to have some hot spots, but no breaches detected. Cleaned flame sensor and dust off the burners. Checked operation, amps, temperatures and gas pressure of both stages of heat. Customer doesn’t use the humidifier anymore and doesn’t want to have it operational. System is still heating properly at this time.
Joseph K.
Jake Kring. 12-06-24. I arrived for a no heat call referral from friends and family. I spoke with the homeowner and she showed me the location on the system and I found it to be a natural draft furnace in the attic that is feeding the duct work in the slab. I informed the homeowner that we cannot get parts for this furnace and that I recommended to replace the system. We discussed the system and agreed to replace the return duct and plenum and reconnect the duct in the wall. The new system will have a 10 year parts warranty and a 1 year labor warranty. I explained that we will be hanging the system to get it off the cycling and be putting a new drain pan under the unit. We also discussed the line set and that it will be ran outside of the home to the condenser and it will be exposed.
Joseph K.
See notes on tech lead
Joseph K.
Jake Kring. 12-06-24. I arrived for a previous customer duct work inspection and conversation. I first inspected the home and duct work and sized the home per the existing system size and what sizing the home would need if we ended up replacing the system and duct work with removing the undersized system and duct work. We went over the details of the duct work with and with out the system replacement. We went over all guarantees and the life time warranty on the duct work. I explained our 10l% satisfaction guarantee that all rooms will be equal per every room air flow and CFM requirements per the system and size of home. If it’s not correct and we have one or more rooms not keeping temperature we will correct the issue at no additional cost. We went over the apples to apples guarantee and I explained that we will preform the same work and quality with the guarantee. All work will be installed per local and state code. If anything is not up to code within our scope of work and what we r
ISAAC J.
Came out to call to perform preventative maintenance on furnace. Discussed with customer about maintenance being provided, filter, and any questions she may have or anything I can help her with. Customer asked if I could clean off the register in the kitchen. It had some grease residue on it, and customer would like it cleaned. Customer gave me a hot rag and some cleaner and I removed as much grease as I could. Recommended customer have all the ducts cleaned out as soon as of the others had some dust build up on them a little bit. Customer will look into having them cleaned in the spring. I inspected the filter, blower assembly, motor, electrical components, heat exchanger, evaporator coil, heating components and overall condition. Cleaned flame sensor and dust off the burners and components. Cycled furnace on and checked amps, temperatures, and both stages of gas pressure. Made customer aware of the inducer motor pulling max amps when in high stage, and that the bearings are starting
Joseph K.
Jake Kring. 12-06-24. I arrived for a previous customer duct work inspection and conversation. I first inspected the home and duct work and sized the home per the existing system size and what sizing the home would need if we ended up replacing the system and duct work with removing the undersized system and duct work. We went over the details of the duct work with and with out the system replacement. We went over all guarantees and the life time warranty on the duct work. I explained our 10l% satisfaction guarantee that all rooms will be equal per every room air flow and CFM requirements per the system and size of home. If it’s not correct and we have one or more rooms not keeping temperature we will correct the issue at no additional cost. We went over the apples to apples guarantee and I explained that we will preform the same work and quality with the guarantee. All work will be installed per local and state code. If anything is not up to code within our scope of work and what we r
Thomas M.
Tom M. 3 system blue shield furnace maintenance. System#1 York serial number ending in 816. Air filter is clean. Cleaned flame sensor. Blower capacitor 14.8 rated for 15. Blower bearings are good. Set gas pressure to 3.5 inwc. IDM amps 1.6 max rated for 2. Inspected the heat exchanger noticed no issues flue co 15 ppm. System #2 York Air filter is clean. Cleaned flame sensor. Blower capacitor 14.7 rated for 15. Blower bearings are good. Set gas pressure to 3.5 inwc. IDM amps 1.8 max is 2.0. Inspected the heat exchanger noticed no issues. Flue co 9 ppm. System #3 Aire-Flo. Air filter is clean. Cleaned flame sensor and set gas pressure. IDM amps 1.2 max rated for 1.45. Inspected the heat exchanger noticed no issues. Flue Co 10 ppm. Blower bearings are slightly loose but is not causing any vibration yet. A
Thomas M.
06Dec2024MarioP. Discuss scope of service with homeowners. System did not have any refrigerant in it. Disconnected all electrical and line set. Removed existing condenser. Install new cinder leveled condenser out. Reconnected all electrical and lineset. Pressure checked system with 200 psi of nitrogen. Pulled vacuum on systems pulled under 500 microns @nd released refrigerant. Cycled system on cool. Covered system with box with pallet on top it was requested by service technician and homeowner. System is working properly at this time.
Jason B.
03DEC2024 Jason Brown Arrived for call back on recent drain cleaning. Spoke with tenants about the systems performance. It stopped working all night, but came on fine at about 1030am. Inspected furnace removed acid trap and blew it out again, blew out drain line. Cycled heating and ran heat for ~20 min with no issues. While reinstalling the acid trap the screw head to secure it twisted off. Currently carrier is closed. Secured acid trap with silicone until I can return with a new collector box Part # 339707-752-CBP 05DEC2024 Jason Brown Arrived to install new collector box. Disconnected power to system removed flue, inducer, acid trap and pressure switches. Removed existing and Installed new collector box. Reinstalled inducer, flue, and pressure switches. Connected hoses and cycled heating. Let system run for ~10 minutes. Cycled equipment on and off again several times. Pressure switch is closing normally and system heats normally. Adjusted thermostat back to original setting. Syste
Jason B.
Jason Brown Arrived for Tornado damage to flue. Inspected flue, found flue folded over completely and some damage done to decking around flue penetration. Spoke with homeowner about the damage and repairs. We decided to move forward with a flue repair. Pulled existing flue pipe out installed new 5’ type b vent with 12” adj. and new cap and collar. Sealed seams with silicone. Trimmed decking for 1” clearance. Roofers will be out to replace the flashing with the flue. System is safe to operate at this time.
Thomas M.
Tom M. 12-5-24. Blue shield furnace maintenance. Provided air filter did not go in the home. Cleaned flame sensor and electrodes. Inspected the heat exchanger it appears that is has been replaced. Idm amps .6. Max amps is .7. Gas pressure set to 3.5 inwc. All components test within manufacture specifications. System is heating properly at this time
Joe R.
Blue shield club heater maintenance. Joe(JC)R. 12/05/2024 Performed full system evaluation and safety inspection. I arrived to perform the customer’s annual heater maintenance. The customer said that everything was running well and didn’t have any questions. The customer wasn’t interested in having the dryer vent cleaned or the hot water tank flush at this time. I then checked the furnace. The heat exchanger was in good shape and the heater components were running well. The duct work was in good shape and I left new filters for the customer. The system is operating correctly at this time.
Thomas M.
Tom M. 12-5-24. Silver club no heat. Customer stated the furnace fires up then shuts back off. Found dirty flame sensor. Cleaned the flame sensor the furnace operates normally. Completed furnace maintenance. Customer is going to change air filters. Set gas pressure. Inspected the heat exchanger noticed no issues. Flue Co 11 ppm. Idm amps .3. Vacuumed the debris from the furnace. All components test within manufacture specifications. System is heating properly at this time.
ISAAC J.
Came out call to perform preventative maintenance on furnace for customer. Discussed with customer about maintenance being provided, filter needed and any issues he might be having. Filter is due to be changed, and customer said system seems to be working well. Supplied customer with a filter. Inspected the ductwork, blower assembly, motor, electrical components, heating components, heating drain and overall condition of system. Cleaned flame sensor, and made sure drain tubing is clear. Checked thermostat operation, amps, temperatures, gas pressure and static pressure. Made customer aware of the higher than recommended static pressure on the system due to the lack of return and the location of the current one. Customers existing return is pulling from the blower side and manufacturer recommends from a plenum or the left side of the furnace for better air flow and less resistance. System is a horizontal left, so the left side isn’t accessible. Recommended adding a return plenum, and ano