HVAC Repair in San Francisco

Your HVAC system is responsible for keeping your home comfortable year-round, and when it fails, the impact is immediate. Whether your heating won't kick on during a chilly San Francisco evening or your cooling system can't keep up on a rare warm day, a broken HVAC system makes your home unlivable. PrimoPeak provides fast, professional HVAC repair to restore your comfort as quickly as possible.

We serve homeowners throughout San Francisco and the greater Bay Area with expert heating and cooling repair. Our technicians are trained on all major HVAC brands and system types, from central air and forced-air furnaces to ductless mini-splits and heat pumps. Call (415) 555-0199 to schedule your repair or request same-day service.

Common HVAC Problems We Fix

HVAC systems are among the most complex mechanical systems in your home. They combine electrical controls, refrigerant circuits, combustion components, ductwork, and airflow management. Here are the problems we see most often in San Francisco homes:

• System not heating — When your HVAC system runs but doesn't produce warm air, the issue could be a faulty igniter, a tripped flame sensor, a broken blower motor, a malfunctioning gas valve, or a failed control board. In heat pump systems, a defective reversing valve or low refrigerant may be to blame. See our dedicated furnace repair page for heating-specific issues.
• System not cooling — If your HVAC blows warm air instead of cold, common causes include low refrigerant levels, a dirty or frozen evaporator coil, a failed compressor, or a bad capacitor. Outdoor unit issues like a clogged condenser coil or a faulty fan motor can also prevent cooling. Our AC repair page covers cooling problems in detail.
• Uneven temperatures between rooms — Some rooms too hot while others are too cold? This often points to ductwork problems — leaks, disconnected sections, or poor original design. It can also indicate a system that's undersized for your home or zones with damper issues.
• Strange noises from the system — Banging, rattling, squealing, or buzzing sounds coming from your HVAC equipment are never normal. They can indicate a loose blower wheel, a failing compressor, worn bearings, a cracked heat exchanger, or debris in the ductwork. Unusual noises should be investigated promptly to prevent costlier damage.
• Unusually high energy bills — If your utility bills have spiked without a change in usage, your HVAC system may be working harder than it should. Dirty filters, refrigerant leaks, duct leaks, failing components, or a system that's simply aging can all reduce efficiency and drive up costs.
• Thermostat issues — Sometimes the problem isn't with the HVAC equipment at all — it's the thermostat. A miscalibrated, malfunctioning, or improperly wired thermostat can cause your system to short-cycle, run continuously, or fail to respond to temperature changes.
• Poor airflow from vents — Weak airflow throughout the house usually points to a clogged air filter, a failing blower motor, or obstructed ductwork. In some cases, the blower motor capacitor has weakened and the fan can't reach full speed.
• Short cycling — When your HVAC system turns on and off frequently in rapid succession, it's called short cycling. This stresses components, wastes energy, and fails to properly condition your home. Common causes include an oversized system, a dirty flame sensor, a refrigerant leak, or an overheating condition triggering the safety limit switch.

Our HVAC Repair Process

HVAC repair requires careful diagnosis and skilled work. Here's how PrimoPeak handles every job:

Step 1: Schedule your service. Call (415) 555-0199 or book through our website. Describe your symptoms — is the system not heating, not cooling, making noise, or behaving erratically? This helps our technician prepare the right tools and parts.

Step 2: Comprehensive system inspection. Our technician performs a thorough evaluation of your HVAC system, including the indoor unit, outdoor unit (if applicable), thermostat, electrical connections, refrigerant levels, and airflow. We use professional diagnostic instruments to measure temperatures, pressures, and electrical values.

Step 3: Diagnosis and estimate. We explain what we found, what's causing the problem, and what it will take to fix it. You receive a written estimate with no obligation. We answer your questions and help you understand whether repair or replacement makes the most sense for your situation.

Step 4: Skilled repair. With your approval, we proceed with the repair using quality components that meet manufacturer standards. Whether it's a capacitor swap, a blower motor replacement, a refrigerant recharge, or a control board repair, our technicians have the training and experience to do it right.

Step 5: System verification. After the repair, we run your HVAC system through its heating and cooling cycles, measuring output temperatures, checking refrigerant pressures (if applicable), and verifying proper thermostat communication. We make sure everything is working before we leave.

HVAC Repair Cost in San Francisco

HVAC repair in San Francisco generally costs between $150 and $500, though the range depends on the complexity of the problem and the parts required. Here's a breakdown of typical repair costs:

• Diagnostic fee: $89, waived when you approve the repair
• Thermostat replacement: $150–$300 (depending on model)
• Capacitor replacement: $150–$250
• Blower motor replacement: $250–$450
• Refrigerant recharge: $200–$400
• Igniter or flame sensor replacement: $150–$250
• Compressor replacement: $400–$800+
• Control board replacement: $250–$500
• Duct sealing or repair: $200–$400

Major component replacements like compressors can exceed these ranges, particularly on premium brands like Carrier or Trane. In those cases, we'll discuss whether repair or full system replacement offers better long-term value.

The average HVAC system replacement in San Francisco runs $5,000 to $15,000 depending on the system type and size, so a $300–$500 repair on a system that has years of life left is almost always the more economical choice.

Why Choose PrimoPeak for HVAC Repair

San Francisco's climate is unique — cool, foggy summers and mild but damp winters put specific demands on heating and cooling systems. PrimoPeak understands these local conditions and brings that knowledge to every repair.

Heating and cooling expertise. Our technicians are trained on all system types: central air conditioning, gas furnaces, heat pumps, ductless mini-splits, and hybrid systems. Whatever equipment you have, we can diagnose and repair it.

All major brands serviced. We work on Carrier, Trane, Lennox, Rheem, Goodman, Daikin, Mitsubishi, American Standard, and more. Our familiarity with each brand's design quirks and common failure points helps us diagnose problems faster.

Same-day and emergency service. When your heat goes out on a cold night or your cooling fails during a heat wave, waiting isn't an option. We offer same-day HVAC repair throughout San Francisco and prioritize comfort emergencies. Call (415) 555-0199 for immediate assistance.

Transparent pricing. No surprises, no upselling. We quote the repair before we start and explain your options clearly. If your system needs more work than makes financial sense, we'll tell you honestly.

Licensed and insured. HVAC work involves electrical systems, refrigerants, and in some cases gas lines. Our technicians hold the proper certifications and licenses required for safe, code-compliant HVAC repair in California.

Efficiency-focused. When we repair your system, we also look for opportunities to improve its efficiency — cleaning coils, checking duct connections, verifying refrigerant charge, and replacing worn components that may be wasting energy.

90-day warranty on all repairs. Every HVAC repair we perform is backed by our 90-day warranty on parts and labor. If the same issue returns, we return to make it right at no additional cost.

Your comfort shouldn't be a gamble. When your HVAC system needs repair, trust PrimoPeak to diagnose the problem accurately, fix it properly, and charge you fairly. Call (415) 555-0199 or schedule your appointment online today.