A furnace that stops heating in the middle of a Pittsburgh winter is more than uncomfortable. It puts plumbing at risk of freezing and, if there is a gas smell, soot, or a suspected carbon-monoxide problem, it becomes a safety emergency. Werth-Aire answers no-heat calls across Pittsburgh and the North Hills the same day, and our technicians arrive ready to diagnose the real fault before quoting a single part.
We repair every common residential heating system in this market — high-efficiency and mid-efficiency gas furnaces, older 80% units, and electric furnaces. Our diagnostic follows the failure, not a script: ignition and flame sensing, gas valves and pressure, inducer and blower motors, limit and pressure switches, control boards, flame rollout, and the condensate path on high-efficiency equipment. You get a flat-rate quote in writing before we turn a wrench.
The goal is an honest repair. If a furnace can be brought back to safe, reliable operation for a fair price, that is what we recommend. When a heat exchanger has cracked or a system is failing repeatedly and parts are no longer available, we say so plainly and show you the evidence rather than steering you toward the biggest ticket.
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Same-day appointments · honest flat-rate pricing
Safety first. If you smell gas, see soot, or suspect carbon monoxide, treat it as a life-safety event — not a repair call. Leave the building immediately, call 911 or your gas utility from outside, and do not restart the furnace. Once you are safe, call us and tell us what you smelled or saw and whether an alarm sounded.
No heat? Do this first (safely)
Check the thermostat
Confirm it is set to heat and calling — set the target a few degrees above the room reading, and replace dead batteries if it is battery-powered.
Check power, the switch, and the filter
Make sure the furnace power switch is on and the breaker has not tripped (reset it once only). Replace the filter if it is visibly clogged — restricted airflow trips the safety.
Look, don’t force
Note any error code, water, ice, or unusual sound without opening sealed equipment. Do not repeatedly reset a furnace that keeps locking out.
Call with the details
Call (831) 461-3437 with the model number, the symptom, your thermostat reading, and any code shown — it helps our technician arrive ready to fix it.
Signs your furnace needs a repair now
- No heat, or air that never reaches the thermostat setting
- The furnace short-cycles — turning on and off every few minutes
- Loud banging, screeching, grinding, or a rumble on ignition
- A yellow or flickering burner flame instead of steady blue
- The blower runs constantly but the air is cold
- A burning or electrical smell, or soot around the unit
- A carbon-monoxide alarm, or a persistent gas odor (leave and call 911 first)
What our furnace & heating repair covers
Ignition & flame-sensing faults
Hot-surface igniters, flame sensors, and pilot assemblies that leave you with no heat or short cycling.
Motors & moving parts
Inducer draft motors, blower motors, capacitors, and bearings that cause noise, weak airflow, or lockouts.
Controls & safeties
Control boards, limit switches, pressure switches, and thermostats that trip the system into a fault state.
Combustion & venting
Gas valves, burner cleaning, and flue and condensate inspection to keep the furnace burning safely.
Our process
Safety check first
We confirm there is no active gas, combustion, or carbon-monoxide hazard before anything else, and shut the system down if it is unsafe.
True-fault diagnosis
We test the ignition sequence, gas pressure, motors, switches, and control board to isolate the actual failed component — not just the symptom.
Written flat-rate quote
You approve a clear, itemized price before we begin. The diagnostic fee and what it covers are explained up front.
Repair & verify
We complete the repair, run a full heating cycle, verify temperature rise and safe combustion, and clean up the work area.
How a Pittsburgh no-heat diagnosis actually works
When our technician arrives for a no-heat call, the diagnosis follows a fixed order rather than a guess. We confirm the thermostat is calling and the safety switches and door interlock are closed, then watch a full ignition sequence — inducer, pressure switch, igniter, gas valve, and flame proving — before testing the flame-sensor signal, the blower, and the temperature rise for airflow problems. On high-efficiency units we check the condensate trap and switch. That order isolates the real failed part instead of the symptom, which is why we quote the exact repair rather than a range. Serious combustion or carbon-monoxide concerns always come first.
What affects the cost
Every furnace repair is quoted flat-rate in writing before work starts, so there are no surprises. What moves the price:
- Which component failed — an igniter or flame sensor is far cheaper than an inducer motor or control board
- Parts availability for older or discontinued models
- Whether the fault exposed a secondary problem, such as a blocked flue or failing heat exchanger
- Access to the equipment and the amount of combustion or safety testing required
Published Pittsburgh market estimates place furnace repair around $150–$600, depending on the failed part and labor. That is planning context — your written quote is the real number. Ask whether the diagnostic fee is credited toward an approved repair.
| Symptom | Likely part | Cost tier |
|---|---|---|
| No ignition | Igniter or flame sensor | Low |
| Short cycling | Sensor, filter, or limit | Low–medium |
| No airflow | Blower motor or capacitor | Medium |
| Won't stay lit | Gas valve or control board | Medium–high |
| Rumble on startup | Burner cleaning / venting | Low–medium |
Repair or replace? Use the evidence
A furnace is a 15–20 year system. When it fails, the honest question is whether a repair restores safe, reliable heat — or whether the money is better put toward a replacement. We show you the evidence either way rather than defaulting to the biggest ticket. Published Pittsburgh furnace replacement runs roughly $3,500–$5,800 for planning context.
When repair makes sense
- The failure is isolated (igniter, flame sensor, capacitor) and the furnace passes safety checks
- The repair cost is proportionate to the furnace’s age and remaining service life
- The heat exchanger is sound and combustion tests clean
- The fix does not depend on bypassing a safety or repeating a temporary reset
When replacement deserves a look
- The heat exchanger is cracked or combustion cannot be made safe economically
- The furnace is 15+ years old and facing a major repair, or breakdowns keep recurring
- Parts for the model are discontinued or hard to source
- Rooms heat unevenly and energy bills keep climbing as efficiency drops
If replacement is the smarter spend, compare a high-efficiency furnace installation line by line — sizing, permits, warranty, and startup testing — before you decide.
Why choose Werth-Aire for furnace & heating repair
No-heat calls are our priority, and our technicians carry the parts that most often leave a furnace dead — so a cold Pittsburgh house gets warm again the same day, at a price you approve before we start.
Serving Pittsburgh since 2015
11+ years keeping North Hills and Allegheny County homes comfortable through hard winters and humid summers.
4.9★ across 51 reviews
Local homeowners rate us for straight answers, clean work, and pricing with no surprises.
Licensed, insured & EPA-certified
EPA Section 608 technicians installing to ACCA Manual J/S/D standards, with the proper Pittsburgh permits pulled on every install.
Flat-rate pricing, 24/7 response
A written quote before we start, the diagnostic fee explained up front, and around-the-clock help when it can’t wait.
Furnace & Heating Repair across Pittsburgh & the North Hills
From our base on the Perry Highway corridor, we bring furnace & heating repair to homes across Allegheny County and Western Pennsylvania. That includes Ross Township, McCandless, West View, Bellevue, Avalon, and Shaler Township, plus the South Hills, the river boroughs, and the wider metro. See every community on our HVAC service areas page, or call (831) 461-3437 to confirm we cover your street.
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Related reading
- Furnace Won't Turn On in Winter? Do This First — A furnace that won’t start on a cold Pittsburgh night is stressful. Here are the safe checks to run first — and the moment to stop and call for help.
- Furnace Short-Cycling: Causes & Fixes — A furnace that turns on and off every few minutes is telling you something. Here is what short-cycling means, what causes it, and how to fix it.