Experience Comfort That Lasts Year-Round

Licensed HVAC contractor delivering efficiency, reliability, and the results you expect.

Heating Furnace Repair

Valley, ensuring your system is correctly diagnosed and restored to dependable performance.

Heating Replacement

Small-team evaluations ensure proper system sizing, duct compatibility, and airflow needs—important for hillside and older Marin County homes.

Heating Installation

Attention is given to airflow balance and vent placement—important in Mill Valley homes with varied room layouts and insulation levels.

Duct work inspection

Offers detailed duct inspections handled by a small, experienced team familiar with older homes and tight attic spaces common in Mill Valley.

Improve Comfort and Efficiency in Every Room

Professional HVAC services in Mill Valley with owner oversight and steady communication throughout

Gibbs Heating and Air Conditioning brings decades of hands-on expertise to residential and commercial climate control in Mill Valley. We're owner-operated, so you'll work directly with professionals who prioritize your comfort, cost savings, and the long-term performance of every system. Whether you're upgrading an aging furnace or keeping your business cool during peak season, our approach centers on clear communication and results you can measure.



You'll receive a free estimate that outlines the full scope and timeline, followed by careful installation or repair work that's licensed and insured for local code requirements. We focus on efficiency—selecting equipment that lowers energy bills and maintains consistent temperatures in Bay Area microclimates. From thermostat calibration to duct inspection, every detail is documented so you understand exactly what's being done and why it matters for your property.

Gibbs Heating and Air Conditioning stands behind each project with a 10-year parts and labor warranty on qualifying installations. That means you get durable equipment, transparent service, and the confidence that your investment is protected. Our team has served Mill Valley since 2005, combining industry knowledge dating back to 1993 with a commitment to the comfort and peace of mind you deserve.

Contact us today for a free estimate and discover how the right HVAC solution improves your space in Mill Valley.

Residential and Commercial Heating and Cooling Solutions

Your heating and air conditioning system affects daily comfort, energy costs, and indoor air quality. We design each solution around your specific needs—whether that's a quiet mini-split for a home office, a rooftop unit for retail space, or a furnace replacement timed before winter arrives. You'll collaborate with our team to choose equipment that fits your budget, schedule, and long-term goals.

We handle every phase clearly: site assessment, load calculation, equipment selection, permitting, installation, and post-project walkthrough. Because we're licensed and insured, you can trust that ductwork, refrigerant lines, and electrical connections meet California standards. Our process minimizes disruption, keeps you informed at each milestone, and ensures your new system starts delivering comfort the day it's commissioned.



Here's what you can expect when you partner with us:

Heating system installation and repair for consistent warmth and lower fuel consumption

Air conditioning installation and maintenance to keep every room cool and humidity-controlled

Commercial HVAC services that support uptime, employee comfort, and customer satisfaction

Free estimates and transparent pricing tailored to Mill Valley residential and commercial properties

Reach out now to schedule your free consultation and start enjoying better climate control in Mill Valley.

Owner-Operated for Your Peace of Mind

Free estimates and clear communication on every residential and commercial project.

Gibbs Heating and Air Conditioning understands that Mill Valley's fog, coastal winds, and hillside microclimates demand equipment calibrated for variable conditions. We're owner-operated, which means direct accountability on every estimate, installation, and service call—licensed and insured to protect both your property and your investment. Our commitment extends beyond the final connection: each qualifying installation includes a 10-year parts and labor warranty so you enjoy long-term reliability without surprise repair bills.

You'll work with professionals who've been in the industry since 1993 and opened Gibbs Heating and Air Conditioning in 2005, blending technical skill with transparent project management. We document every milestone, answer your questions in plain language, and deliver systems that meet your comfort expectations while cutting monthly energy costs. That hands-on approach has made us a trusted partner for both residential families and commercial property managers across Mill Valley.



Call Gibbs Heating and Air Conditioning in Mill Valley for your free estimate and experience the difference that owner oversight and a decade-long warranty make.