HVAC & AC Replacement Cost in Millbrae, California: 2026 Prices

Thinking about replacing your HVAC or AC system in Millbrae, California? It’s a big decision, and with California’s ever-changing regulations and environmental concerns, it’s crucial to be well-informed. This guide provides insights tailored to Millbrae homeowners. For a broader understanding of state-wide regulations, check out our complete California Heating & Cooling guide. Expect to pay between $8,000 and $16,000 for a full system replacement in Millbrae. This price range varies based on the size of your home, the efficiency of the new system, the complexity of the installation, and the contractor you choose.

Material Prices (Estimates)

Component Estimated Price (Installed) Notes
Heat Pump System (3-Ton) $8,500 – $14,000 Highly recommended; meets Title 24 & qualifies for rebates.
High-Efficiency AC Unit (3-Ton, SEER2 Compliant) $6,000 – $11,000 Meets SEER2 standards for rebates.
Ductwork Replacement (Per Run) $300 – $800 Critical for Title 24 compliance.
MERV 13 Filter $30 – $60 Improves indoor air quality, especially during wildfire season.
Air Scrubber Installation $800 – $1,500 Further enhances IAQ by removing pollutants.

Local Factors in Millbrae

Several local factors influence HVAC and AC replacement costs in Millbrae:

  • Permits: San Mateo County requires permits for HVAC replacements. Expect to pay between $300 and $800 for permits, depending on the scope of the project. Your contractor should handle the permit process.
  • Labor Rates: Due to the high cost of living, labor rates in Millbrae are higher than the national average. Expect to pay $75 – $150 per hour for HVAC installation labor.
  • Contractor Availability: Millbrae is a desirable location; secure an HVAC contractor well in advance, especially during peak seasons (summer and late fall).
  • CSLB Licensing: Always verify contractor license at California Contractors State License Board (CSLB). Unlicensed contractors can lead to fines and substandard work.

Weather Impact on HVAC & AC Efficiency

Millbrae experiences moderate temperatures year-round, but energy-efficient cooling is still essential. Investing in a high-efficiency heat pump or SEER2-compliant AC unit makes sense to minimize energy consumption and maximize comfort. Due to California’s push for electrification and the need to comply with Title 24, heat pumps are becoming increasingly popular as they efficiently provide both heating and cooling.

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Frequently Asked Questions

  1. How long does an HVAC or AC replacement take?

    Most replacements take between 1-3 days, depending on the complexity of the job and whether ductwork needs to be replaced.

  2. What is SEER2, and why is it important?

    SEER2 is a new efficiency rating standard for air conditioners and heat pumps. Units with higher SEER2 ratings are more energy-efficient and can qualify for rebates under the Inflation Reduction Act.

  3. How do I find a reputable HVAC contractor in Millbrae?

    Check online reviews, ask for recommendations from friends and neighbors, and always verify their license through the California Contractors State License Board (CSLB).