Efficient & Reliable Gas Furnace Solutions for Your Home or Business
A high-quality gas furnace provides reliable, energy-efficient heating for homes and businesses during the colder months. At Schmitt Heating & Air Conditioning, we offer expert gas furnace installation, repair, and maintenance services in San Francisco, Marin, San Mateo, and Alameda Counties. Whether you need a new high-efficiency furnace, fast repairs, or routine maintenance, our certified HVAC technicians ensure your heating system runs safely and efficiently.

Our Gas Furnace Services
At Schmitt Heating & Air Conditioning, we provide comprehensive gas furnace solutions to ensure optimal performance, efficiency, and safety.
Gas Furnace Installation & Replacement
High-Efficiency Gas Furnaces – We install ENERGY STAR®-rated furnaces to lower heating costs.
Proper Sizing & Load Calculation – Ensuring the right furnace size for your home or business.
Smart Thermostat Integration – Improve energy efficiency with smart climate control.
Seamless Installation – Professional, code-compliant gas line and venting installation.
Gas Furnace Repair
No Heat or Insufficient Heating – Quick diagnostics and repairs to restore warmth.
Strange Noises or Smells – Fixing unusual banging, rattling, or gas odors.
Frequent Cycling or Short Cycling – Troubleshooting thermostat, sensor, and airflow issues.
Pilot Light or Ignition Problems – Ensuring safe and efficient burner operation.
Gas Furnace Maintenance
Annual Furnace Tune-Ups – Prevent breakdowns and ensure peak performance.
Filter Replacement & Cleaning – Improve airflow and indoor air quality.
Carbon Monoxide Testing – Checking for gas leaks and safety hazards.
Heat Exchanger Inspection – Preventing cracks and system malfunctions.
Benefits of a High-Efficiency Gas Furnace
Lower Heating Costs – Newer high-efficiency furnaces use less energy, reducing utility bills.
Consistent, Even Heating – Advanced furnaces distribute heat more evenly throughout your space.
Eco-Friendly Performance – Modern models reduce carbon emissions and operate cleaner.
Quieter Operation – New furnaces feature sound-dampening technology for quieter performance.
Longer Lifespan – Properly maintained furnaces last longer and require fewer repairs.
Is It Time to Replace Your Gas Furnace?
If your gas furnace is 15+ years old or showing signs of inefficiency, it may be time for a replacement. Consider upgrading if you notice:
Rising Energy Bills – An old furnace struggles to maintain efficiency.
Frequent Repairs – Constant breakdowns indicate system failure.
Uneven Heating – Cold spots or inconsistent warmth throughout your home.
Strange Noises – Banging, rattling, or grinding sounds signal mechanical issues.
Yellow Pilot Light – A blue flame is normal—a yellow pilot light may indicate carbon monoxide risks.
If you experience any of these warning signs, contact us for a furnace inspection and replacement consultation.
Why Choose Schmitt Heating & Air Conditioning?
Over 100 Years of Experience – Trusted in heating solutions and gas furnace services.
Certified & Licensed HVAC Technicians – Experts in all major furnace brands.
Energy-Efficient Heating Options – We help lower your heating costs with modern, high-efficiency furnaces.
Fast & Reliable Repairs – We provide same-day service and emergency repairs.
Customer Satisfaction Guaranteed – Quality craftsmanship and exceptional service on every job.
Schedule Your Gas Furnace Service Today!
Stay warm, safe, and energy-efficient with Schmitt Heating & Air Conditioning’s expert gas furnace services in San Francisco and many surrounding counties. Whether you need installation, repair, or maintenance, our team is ready to help!