A window view from inside a home showing a snow-covered suburban street with bare trees, evergreen shrubs, and a neighboring house during a winter snowstorm.

Furnace Repair in Tulsa, OK

Furnaces here run from October through April. If yours quits, tell us what it's doing and a licensed contractor who covers Tulsa County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
A gray forced-air furnace with metal ductwork stands in an unfinished basement with exposed wooden joists, concrete walls, and a single hanging light bulb.

Seven months of heat, and storms that knock out the power

Your furnace works from October through April in Tulsa County. That is seven months of the year it has to run, most nights against a low near 29°F. All that cycling wears on the igniter and the flame sensor, the parts that light the burner and prove it is burning. When one of them fails, the furnace either won't start or shuts itself off partway through.

Most furnaces here run on gas, but they still need power to run the blower and the control board. Oklahoma has seen 10 winter storms and 276 damaging wind events over the past ten years, and a quarter of households in the state lost power for a day or more in 2024. When the power drops, the furnace stops even if nothing is wrong with it, and it should start again on its own once power is back.

7 months
October through April, your furnace is on duty
29°F
the average winter night it heats against
62%
of homes here heat with gas, so most furnaces here burn gas
10 winter storms
in ten years, the nights a failure hurts most
Isometric cutaway illustration of a small house showing interior rooms, ductwork running through the attic, and a furnace unit with a vertical flue pipe on the exterior wall.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

An unfinished basement featuring concrete block walls, exposed floor joists, a bare concrete floor, and a forced-air furnace with a large metal exhaust duct in the corner.

A new furnace would cut about $110 a year off heating for a typical Tulsa County home.

  • A new high-efficiency furnace$490 a year
  • An older furnace$600 a year

Estimates for a typical Tulsa County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Oklahoma fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when one part has failed and the heat exchanger is sound.

Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.

Oklahoma requires HVAC contractors to hold a state license.

Oklahoma licenses HVAC contractors through the Construction Industries Board. That license belongs to the contractor, not to this specific job, so the state has tested and recorded that contractor before they ever walked into a home. It is not paperwork filed for this furnace. It is a credential attached to the person or company doing the work, good for whatever job they take on.

For a furnace repair, that license is what stands behind the work being done in the house. Gas connections are the part that has to be right, since a bad one is what makes the job dangerous, and the license is what makes a contractor accountable for getting it right. In Tulsa County, most homes heat with gas, so this is the fuel the license is meant to cover for a repair like this one.

Source: Oklahoma State Legislature

Why won't my furnace turn on?
Most often it's the thermostat, the power to the unit, or the igniter. Check that the thermostat is set below room temperature and has power, then check the breaker for the furnace. Gas furnaces also need a working igniter or pilot to start, so if the blower runs but you get no heat, that's usually where the problem is. A contractor can test the igniter, the flame sensor, and the control board to find which one has failed.
Why is my furnace blowing cold air?
If air is blowing but it's not warm, the furnace may be running the blower without the burners lighting. That points to an ignition problem, a clogged filter forcing a safety shutoff, or a pilot light that went out. A dirty filter can also make the furnace overheat and shut off its burners while the fan keeps running, so check the filter first. If it's clean and the air still stays cold, the igniter or flame sensor likely needs a contractor's attention.
Why won't my furnace pilot light stay lit?
A pilot light that won't stay lit is almost always the thermocouple, the safety sensor that shuts off gas flow if it doesn't sense the flame. When that part wears out or sits out of position, it cuts the gas even though the pilot is burning fine. A draft blowing across the pilot can also blow it out repeatedly. A contractor can tell whether the thermocouple needs adjusting or replacing.