Heating · St. Louis
Furnace & Heating Repair in St. Louis, MO
No heat, a furnace that lights and drops out, a blower that won't run. Cold nights don't wait for business hours, and we work the ignition sequence properly instead of swapping parts and hoping.
- Safety checks first — heat exchanger, flue and gas pressures
- The full ignition sequence tested, not just the obvious part
- Straight answer on whether the furnace is worth keeping
Heating faults we handle
Furnaces fail in patterns. Knowing the sequence is what separates a one-visit fix from three trips.
No heat at all
Ignition, gas valve, pressure switch or control board — diagnosed in order rather than guessed.
Lights then drops out
Usually flame sensing, venting or a limit tripping on airflow.
Blower problems
Motors, capacitors and wheels that are noisy, slow or refusing to start.
Thermostat & controls
Wiring and staging faults that look like a dead furnace but aren't.
Signs your furnace needs attention
Heating problems tend to announce themselves before they leave you without heat.
Short cycling
The furnace runs briefly and stops, repeatedly — usually airflow or a failing limit.
Yellow burner flame
A combustion issue worth checking immediately.
Rising gas bills
The system is working harder for the same output.
Rattling or booming on start
Delayed ignition is both loud and hard on the equipment.
Cold rooms
Distribution and duct issues often show up first in the furthest room.
20+ year old furnace
Efficiency and safety both deserve a closer look at that age.
Why call ECO-AIR for heat
Year-round, same company
The people who service your AC know your furnace too.
Safety taken seriously
Heat exchanger and combustion checks are part of the visit, not an upsell.
Honest replacement advice
If the furnace is done, we say so — and if it isn't, we say that too.
Local
Based on Delmar Blvd., working the neighbourhoods around it.
Furnace repair
questions.
Check the thermostat batteries, the filter and that the furnace switch and breaker are on. If it still won't run, call rather than resetting it repeatedly — repeated lockouts can hide the real fault.
Fifteen to twenty years with regular maintenance. Past that, efficiency and part availability both start working against you.
Yes — and where both systems are aging, replacing the furnace and AC together usually costs less than doing them a year apart.
No. It's a safety issue and the correct answer is replacement; we'll show you what we found before recommending it.
Other services