Furnace Repair Cost in San Francisco, CA
Lennox 2-Ton 18 SEER

The average cost of furnace repair in San Francisco, CA with a Lennox 2.0-ton 18 SEER system is $870, with most homeowners paying between $780 and $960 depending on home conditions, permit fees, and labor availability. The Lennox 2.0-ton unit is a premium, energy-efficient unit engineered for long-term reliability, sized for homes with 600-900 sq ft of conditioned space. The 18 SEER rating places this unit well above the minimum efficiency standard, reducing annual energy costs significantly.

Cost Breakdown - San Francisco, CA

* Estimates based on San Francisco area labor rates ($136.68-$221.85/hr, BLS-sourced). Actual costs vary by home conditions and contractor. Get 3 quotes.

About Furnace Repair

Diagnosis and repair of furnace failures including igniter, heat exchanger, blower motor, control board, and gas valve issues. In San Francisco, CA, licensed HVAC contractors typically charge $137–$222 per hour for installation labor, with this job averaging 2.0 hours.

The equipment cost for the Lennox 2.0-ton 18 SEER system represents approximately $400 of your total. Installation labor in San Francisco adds $360, with permit fees, refrigerant, and disposal bringing the full estimate to $870. Prices in CA vary by contractor — always collect 3 quotes before scheduling a major HVAC installation.

Signs You Need Furnace Repair

Consider scheduling furnace repair in San Francisco, CA if you notice furnace not producing heat or loud banging, rattling, or squealing or short cycling (turns on and off rapidly). Early action prevents the costly emergency service premiums common in the West region during peak seasons.

• -Furnace not producing heat
• -Loud banging, rattling, or squealing
• -Short cycling (turns on and off rapidly)
• -CO detector alarm near furnace
• -Pilot light repeatedly going out

What's Included

• -Safety and diagnostic inspection
• -Combustion analysis
• -Component repair or replacement
• -Heat exchanger crack inspection
• -Carbon monoxide test
• -Final system performance check

Hiring an HVAC Contractor in San Francisco

• 1.Verify the contractor holds a current CA HVAC license and carries liability insurance.
• 2.Request an itemized quote that separates equipment, labor, and permit costs.
• 3.Ask specifically about Lennox dealer status — authorized dealers in San Francisco, CA often offer extended warranties.
• 4.Confirm the quote includes refrigerant, line set, and startup commissioning — not just the equipment.
• 5.Check for manufacturer rebates and utility company incentives before signing.

Frequently Asked Questions