Natan HVAC
Furnace Repair & Tune-Ups
Heating that starts when you need it — repairs, seasonal servicing and safety checks including heat exchanger and combustion inspection.
Licensed & insured
Permitted, inspection-ready work
Warranty
1-year warranty on all work
Response
24/7 emergency dispatch
Experience
16 years in the trade
Most furnace calls are one of a small number of faults — igniter, flame sensor, control board, blower motor, or a safety switch that has tripped for a reason worth finding. Those are straightforward repairs and we carry the common parts.
The part of the visit that matters most is the one nobody asks for: inspecting the heat exchanger and combustion. A cracked exchanger can put carbon monoxide into the air you breathe, and it produces no smell and no symptom you’d notice until it’s serious. If we find one, we’ll tell you plainly and we won’t recommend running the unit.
If your furnace is old enough that a major repair is a real question, it’s worth knowing that the Bay Area’s zero-NOx standard reaches furnaces on January 1, 2029. That doesn’t mean replacing a working furnace now. It does mean a large repair on a fifteen-year-old unit deserves a proper look at the alternative — including what your electrical panel can carry, which we can answer in the same visit.
Diagnostic fee stated upfront and credited against the repair if you proceed.
Common questions
- Why won't my furnace ignite?
- Commonly a failed igniter, a dirty flame sensor, a blocked condensate line on a high-efficiency unit, or a safety switch doing its job because something else is wrong. The last case matters — bypassing a tripped safety is never the fix.
- Is an annual tune-up actually worth it?
- For a gas furnace, yes, and mostly for safety rather than efficiency. It's when the heat exchanger and combustion get inspected, and a cracked exchanger is a carbon monoxide risk you cannot see or smell for yourself.
- What's the burning smell when I first turn on the heat?
- Usually dust burning off the exchanger after a summer idle, and it should clear within an hour or so. If it persists, smells electrical, or comes with soot, shut it down and call us.
- Should I repair this furnace or move to a heat pump?
- Worth a real conversation rather than a rule of thumb. Furnaces face a zero-NOx replacement requirement from 2029, so a major repair on an older unit may be money spent on equipment you'll replace anyway. Your panel capacity is the other half of that decision.
Where we do this work
Need this done today?
Call +1 (925) 470-6006