Furnace Repair in Newark
Newark sits in a bay-moderate pocket with mild summers and cool winters, so cooling load is light and the gas furnace does the real seasonal work. The housing is largely 1960s through 80s tract construction, modest single-family homes, and many of those furnaces are decades old on the first system or well into a second. That means most furnace calls here open the repair-or-replace question whether the homeowner planned to have it or not.
On the service side the failures are textbook for tract furnaces of this age: a cracked hot surface ignitor, a flame sensor fouled enough to drop the flame, a tired draft inducer, or a control board that has started throwing intermittent lockouts. We carry parts for all of those. What pushes a Newark repair into a replacement conversation faster than anything is an older system still on R-22 refrigerant, because the cost of reclaimed R-22 makes patching a leaky companion AC uneconomical and the furnace is usually the same vintage.
We do not lean either direction by default. We test the components, read the CO and gas valve, check the age and the operating cost, and put the math on the estimate. Sometimes a $250 ignitor buys you a few more good years. Sometimes the honest answer is that the system is past it. Newark is in Ava Community Energy territory, so when replacement is the call we confirm what rebates are actually paying that month before you decide.
What we run into in Newark
Ignitor, flame sensor, and lockout faults. The standard no-heat trio on Newark tract furnaces. We test the ignition sequence, clean or replace the flame sensor, swap a cracked ignitor, and clear the lockout history on the board so we know whether it was a one-off or a pattern.
Control board diagnostics. On 80s and 90s furnaces the integrated control board drifts and starts intermittent lockouts that are maddening to chase. We read the fault codes and confirm the board is the actual cause before quoting one, since a board is not cheap and a sensor sometimes mimics it.
CO and gas valve safety check. Every gas call includes a carbon monoxide reading and gas valve test. On a furnace past 30 years a cracked heat exchanger is a live possibility. If we find dangerous CO or a confirmed crack, we document it, show you, and shut the unit down.
Repair-or-replace math on aging systems. Most Newark furnaces are old enough that this question is real. We weigh component cost against system age and refrigerant type on the paired AC, then put both paths on the estimate. R-22 systems usually tip toward replacement once a leak is in play.
Heat pump conversion with rebate filing. When replacement is the answer, a heat pump is often the better long-term move in Newark's mild climate. We run the load calculation, check panel capacity, and confirm current Ava Community Energy rebate eligibility, then handle the filing paperwork.
Furnace Repair in Newark: common questions
Do you cover Newark out of San Ramon, and how quick is response?
My Newark furnace is from the 80s. Is it worth fixing one more time?
What does a furnace diagnostic cost?
Nearby and related
Furnace Repair near Newark: Fremont · Union City · Milpitas .
Other HVAC services in Newark: AC Repair · Ductless Mini-Split · Heat Pump Installation & Service · HVAC Installation · Maintenance Plans .
Common furnace repair problems in Newark: Furnace Blowing Cold Air · Furnace Not Heating .
See the full furnace repair overview or our Newark service area.
Furnace Repair in Newark
Free on-site assessment, written the same day.
Bay Area · 7am–7pm · 7 days · no overtime charges