Fast, Reliable AC Repair & Installation Across San Rafael
AC repair in San Rafael typically runs $150–$650, while a full system installation ranges from $3,500–$7,500. Most repairs are completed same-day, and our AC Repair & Installation team carries parts for Carrier, Trane, Lennox, and Goodman units on every truck. Call (855) 467-1888 for a free estimate.
We’ve been driving to San Rafael since 2008. Owner Jason Trent knows the difference between a fog-cooled western hillside home that barely needs cooling and a Terra Linda ranch baking at 98°F in July. That local knowledge changes what we bring, how we size equipment, and whether we start every job with a duct inspection. Our technicians are equipped for tight alley-load access in Canal-area townhomes and the steep driveways off Los Ranchitos Road. Sixteen years and nearly 500 reviews have taught us that San Rafael homeowners research before they call. They want specifics, not promises.
Why Stonegate Heating & Air California Is San Rafael’s Preferred AC Repair & Installation Company
Our reputation in San Rafael is built on showing up with the right equipment and the right expectations. Jason Trent serves as Field Supervisor, not a back-office owner. That means he’s physically on job sites, reviewing duct conditions in 94903 attics and verifying refrigerant charges in 94901 multi-family units. San Rafael customers have left us 499 verified reviews averaging 4.7 stars across platforms. The volume matters. It means we’ve handled the specific failure modes this city’s housing stock produces.
We respond to San Rafael calls from our Sacramento base, and we schedule to minimize wait times during heat events when Terra Linda demand spikes. Our trucks carry HERS testing equipment, compact maneuvering gear for tight alleys, and factory-authorized parts for nine major brands. We don’t tell you to “call someone else” because we don’t service your unit.
Our AC Repair & Installation Services in San Rafael
AC Repair
San Rafael’s inland valley heat hits hard and fast. We see compressors failing under sustained 95°F+ loads in Terra Linda, capacitors dying after Diablo wind dust storms, and refrigerant leaks from vibration-worn lines in original 1960s installations. Our AC repair calls in 94903 often start with a homeowner describing lukewarm air from vents that used to blow cold. We check the charge, test the capacitor, and inspect duct integrity in the attic before declaring the repair complete. Most repairs fall between $150–$650.
AC Installation
First-time cooling retrofits dominate our San Rafael installation calendar. Terra Linda’s ranch homes were built on gravity furnaces or floor heaters with no ductwork designed for AC. Downtown and Canal-area buildings from the 1920s–40s frequently run wall heaters or radiant systems. Installing central air in these properties means designing duct systems from scratch, sizing for actual heat load rather than square footage alone, and navigating Marin County’s permit requirements. A typical AC installation in San Rafael runs $3,500–$7,500 depending on duct complexity and equipment size.
AC Replacement
Replacing an existing AC in San Rafael without inspecting the ductwork is a mistake we see competitors make repeatedly. Original flex duct in Terra Linda attics has spent sixty years cycling through 130°F Diablo wind events. It’s often collapsed, separated at joints, or crushed by storage. A new 3-ton system pumping into leaking ductwork delivers 2 tons of cooling and burns itself out early. We pull HERS-compliant duct leakage tests on every replacement, size equipment to actual delivered capacity, and quote the full job honestly.
Refrigerant Recharge
Low refrigerant in San Rafael usually signals a leak, not normal consumption. We locate and repair the source before recharging, whether it’s a corroded evaporator coil in a humid 94901 crawl space or vibration wear at the compressor connection in a 94903 attic. Recharging alone without leak repair violates EPA regulations and wastes your money. We provide documentation of leak repair and proper charge weight for warranty and permit records.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Rafael
We maintain factory training and parts access for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For San Rafael customers, that means no dead ends. We carry common capacitors, contactors, and refrigerant charges for Goodman and Lennox units on our trucks, the two brands we see most frequently in Terra Linda’s original 1970s installations and recent replacements. Trane and Carrier parts are stocked for next-day turnaround when needed. Whatever brand is cooling your San Rafael home, we’ve repaired it before.
Common AC Repair & Installation Problems We See in San Rafael Homes
- Collapsed original flex duct in Terra Linda attics. That 1960s flex duct was never designed for AC airflow or 130°F attic temperatures. During Diablo wind events, it separates at joints and collapses under its own weight. Homeowners blame the new compressor when 40% of their cooling is bleeding into unconditioned space.
- Undersized systems installed without microclimate adjustment. A western hillside home in San Rafael might need half the tonnage of a Terra Linda ranch three miles east. County-wide sizing charts fail here. We measure actual heat load by neighborhood, not ZIP code average.
- Tight access delaying emergency repairs. Alley-loaded townhomes off Bella Vista Way and similar Canal-area streets require compact service vehicles and technicians experienced with constrained work areas. Standard box trucks can’t maneuver. We equip for this.
- Permit gaps on duct replacement. Marin County requires HERS duct leakage testing on new and replacement duct systems. Contractors who skip this in their quote leave homeowners holding a failed inspection and change-order invoice.
Pricing for AC Repair & Installation in San Rafael, CA
| Service | Typical Range in San Rafael |
|---|---|
| AC Repair | $150–$650 |
| AC Installation | $3,500–$7,500 |
What moves a San Rafael job within these ranges? Duct condition is the biggest variable. A straightforward capacitor replacement on accessible equipment runs toward the lower end. A compressor replacement requiring refrigerant recovery, electrical upgrade, and duct repair runs higher. First-time installations in homes without existing ductwork need full system design, material, and labor, pushing toward the upper range. We inspect before we quote. Estimates are free, detailed, and include permit costs where applicable. Call (855) 467-1888 to schedule.
We Also Serve Cities Near San Rafael
Our service radius covers San Anselmo, Fairfax, Lucas Valley-Marinwood, and Kentfield from the same dispatch. The microclimate knowledge that matters in San Rafael, Terra Linda applies across central Marin. We understand which Lucas Valley homes sit in cooling fog pockets and which Kentfield hillside properties need full heat-load sizing. Our AC Repair & Installation team routes daily throughout the county.
Serving San Rafael, CA — Our Local Coverage Area
We’re based in the San Rafael area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — AC Repair & Installation in San Rafael
Original 1960s flex duct in Terra Linda attics is often collapsed, separated at joints, or crushed by storage, leaking 30–40% of conditioned air into unconditioned space. We replaced the compressor and recharged the refrigerant on a Goodman unit in a tight alley-loaded townhome off Bella Vista Way; the owner had been losing cool air due to a failing capacitor and duct leakage from original flex duct. We secured rolling-code remotes, balanced the charge, and recommended full duct replacement via HERS testing to meet permit requirements. Call (855) 467-1888 for a duct inspection before your next installation quote.
Yes. Canal-area homes and downtown bungalows frequently run wall heaters or radiant systems with no existing ductwork. We design and install complete duct systems sized to your home’s actual heat load, not just square footage. First-time installations in these properties typically run $3,500–$7,500 depending on layout complexity and equipment access. Call (855) 467-1888 for a free estimate.
We secure and program rolling-code remotes for compatible systems during installation and repair calls. For the tight alley-loaded townhomes common off Bella Vista Way and similar San Rafael streets, remote access eliminates the need to maneuver around parked vehicles or constrained entryways for manual control. Call (855) 467-1888 to confirm compatibility with your specific unit.
We size by neighborhood heat load, not county averages. A Terra Linda ranch in 94903 may need a 3.5-ton system while a western hillside home in the same ZIP, cooled by marine influence, might need 2 tons. San Rafael’s inland valley position creates one of Marin County’s sharpest temperature gradients. Our load calculations use actual orientation, insulation, and local temperature data. Call (855) 467-1888 to schedule a proper sizing evaluation.
Marin County requires HERS duct leakage testing on all new and replacement duct systems. The permit application includes equipment specifications, duct design, and verified leakage rates below 6% of system airflow. We handle permit submission, coordinate HERS testing, and provide compliance documentation. Skipping this step is a common and costly mistake that leaves homeowners with failed inspections and additional fees. Call (855) 467-1888 and we’ll walk you through the specific requirements for your property.
Ready to get your San Rafael home cooling properly? Call Stonegate Heating & Air California at (855) 467-1888 for a free estimate. Jason Trent and our team will inspect your system, explain what we find, and quote the full job honestly.
Written by Jason Trent, Owner at Stonegate Heating & Air California, serving San Rafael since 2008.