Quick answer: Furnace repair in San Jose typically costs between $150 and $600 for common issues like ignitor replacement, flame sensor cleaning, or blower motor repair, and most jobs are completed same-day. Kailey Air Systems has repaired furnaces throughout San Jose since 1999 and offers upfront pricing before any work begins. If your furnace is making strange noises, blowing lukewarm air, or refusing to start altogether, you're not alone — this is one of the most common se