Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Fast, Reliable AC Repair Across Novato
AC repair in Novato typically runs $150 – $650 for a diagnostic and the most common part replacements, and most calls are handled same day or next morning. That’s the honest range, and we put it in writing before a single tool comes off the truck. Dalton Heating & Air has been answering calls from Novato homeowners since 2003 under The Garrison Standard, which means one thing: the price you’re quoted is the price you pay. If your system is down and the house is warm, call (361) 306-9515 now. A real person answers, day or night.
We know Novato’s specific rhythm. Homes in the Ignacio area, up in Hamilton, and along Novato Boulevard all run their AC differently than houses ten miles inland. When a condenser fails here, it’s usually not from brutal heat. It’s from something quieter. More on that below.
Why Dalton Heating & Air Is Novato’s Preferred AC Repair Company
Novato homeowners don’t call us for a song and dance. They call because we show up inside the stated window, hand over a written price before any work starts, and back every repair with a written guarantee for a full year. If the repair fails inside that year, we return at no charge. That’s the 365-Day Done Right Promise, and it’s not an add-on. It comes with every single service call.
Marco Benitez runs our operation and he’s built it on a simple test: would we put the same system in our own home, and would we charge our own mother the same price. That’s the yardstick. No pressure, no upsells, no invoice surprises. Our techs are background-checked, uniformed, and factory-trained to service nine major residential brands, so the person at your door in Novato already knows your equipment before they knock.
We coordinate dispatch from the San Francisco Bay Area office, and crews run local routes through Novato daily. Novato’s reviews of Dalton consistently mention the same things: on time, clean work site, price that matched the quote. That’s what “The Garrison Code” requires: arrive inside the window, price in writing, do the job by the book, leave the site clean, stand behind the work for a year. No exceptions.
Emergency AC Repair in Novato
Emergency AC Repair in Novato usually means a system that quit during a heat spike and a house climbing past 80 degrees by noon. It costs the same as any other repair call here: $150 – $650 depending on what failed, and we tell you the number before we touch the unit. No overtime upcharge, no “emergency service fee” tacked on. If you call (361) 306-9515 at 11 p.m., a live person answers and dispatches a tech to Novato. If your home has elderly residents, infants, or someone with a respiratory condition, tell the dispatch team when you call. We prioritize those calls.
After-Hours Response From Novato Dispatch
Our Bay Area dispatch team coordinates calls for Novato around the clock. On a summer Saturday when a compressor in the San Marin area dies, you’re not leaving a voicemail and hoping. You’re talking to a person who can see the schedule and commit to a window right then.
What Happens When the Tech Arrives
The tech runs a full diagnostic before proposing anything. That means checking refrigerant pressures, capacitor readings, thermostat wiring, and static pressure, not just swapping a part and hoping. You get the written quote for the exact repair. If it’s a capacitor or contactor, the tech usually has it on the truck and finishes in under an hour. If it’s a compressor, we order the part that day and give you a straight timeline.
AC Not Blowing Cold Air in Novato
AC Not Blowing Cold Air in Novato is the most common call we get from homeowners on the west side and up in the hill neighborhoods. In a lot of these cases, the system runs fine, the fan spins, but the air is lukewarm. That’s often a low refrigerant charge or a failing capacitor, not a dead unit. You’re looking at $150 – $650 to diagnose and replace the common culprits, and we always check the full system before recommending anything bigger.
Low Refrigerant and Slow Leaks
Novato’s coastal climate masks low refrigerant better than inland heat does. The system never gets pushed hard enough to trip a high-pressure fault. It just blows progressively warmer air while the thermostat says it’s running. We test with gauges and a leak check, not guesswork. A refrigerant recharge, which is topping off the cooling fluid your system needs to reach set temperature, fixes it temporarily. Finding and sealing the leak is what actually keeps it fixed.
Capacitors, Contactors, and Deferred Maintenance
Failed capacitors and dirty condenser coils show up as “not blowing cold” but they’re really deferred maintenance from Novato’s short, intermittent run season. The system sits idle for months, then fires up and a weak capacitor gives out. We stock a full range of capacitors and contactors on every Novato truck so most of these calls don’t need a second visit.
Trusted Brands We Service in Novato
Dalton Heating & Air services Trane, Lennox, Goodman, and Rheem systems, plus five other major residential brands: Carrier, York, Daikin, Bryant, and American Standard. We keep common replacement parts stocked for Novato routes, which means a capacitor for a Lennox in Hamilton or a contactor for a Rheem off Novato Boulevard doesn’t mean waiting on a supplier. Because Novato’s mix of housing includes everything from 1970s ranchers with original ductwork to newer builds with high-efficiency heat pumps, our techs see the full spread of equipment. AC Repair on any brand is the same deal: written price first, written guarantee after.
Common AC Repair Problems We See in Novato Homes
- Oversized systems installed from inland Marin rules of thumb. A unit spec’d for San Rafael heat cycles on and off every few minutes in cooler Novato, never pulling humidity out of the air and wearing out parts from constant short-cycling.
- Low refrigerant charge from slow leaks. Coastal temps rarely push the condenser hard enough to trigger a fault code, so a system slowly loses cooling capacity over one or two seasons before anyone notices.
- Dirty condenser coils and failed capacitors. Novato’s wet, foggy mornings leave moisture and debris on outdoor units, and intermittent run seasons mean problems hide for months until the first warm week exposes them.
- Thermostat calibration drift in older homes. Many Novato homes still run original wiring and older thermostats that read two or three degrees off, causing short cycles or no cool at all until we recalibrate or swap the unit.
Pricing for AC Repair in Novato, CA
Here is what AC repair actually costs in Novato, in writing. A diagnostic plus a common replacement part, like a capacitor, contactor, or fan motor, runs $150 – $650. A full AC installation in Novato runs $3,500 – $7,500 depending on system size and efficiency. A seasonal tune-up and preventive maintenance visit runs $80 – $200. The biggest swing factor on repair cost is whether you need a part we stock on the truck or a component like a compressor that has to be ordered. We tell you the exact number before any work begins, every time. Estimates are free. Call (361) 306-9515.
| Service | Novato Price Range |
|---|---|
| AC Repair (diagnostic + common part replacement) | $150 – $650 |
| AC Installation (full system) | $3,500 – $7,500 |
| Tune-Up / preventive maintenance | $80 – $200 |
Novato’s coastal climate means a replacement isn’t always the right answer. Repair-versus-replace should hinge on the age of the system, the condition of the heat exchanger or coil, and what a proper load calculation says about whether the unit was ever right-sized for your house to begin with. We’ll give you the numbers straight, not a sales pitch for a new unit you might not need.
We Also Serve Cities Near Novato
Dalton Heating & Air runs regular routes through Fairfax, San Anselmo, Petaluma, and San Rafael. If you’re a Novato homeowner with a rental unit in any of those cities, or a property manager handling multiple Marin locations, one call to (361) 306-9515 covers the whole area. Same written pricing standard, same full-year guarantee.
Serving Novato, CA - Our Local Coverage Area
We’re based in the Novato 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 About AC Repair in Novato
If the system is under 12 years old and the compressor and coil are sound, repair usually makes sense. A $200 capacitor or a $350 fan motor is nearly always the right call over a $5,000 replacement. If the system is over 15 years old, runs on R-22 refrigerant, and needs a coil or compressor, replacement starts making more financial sense. In Novato’s climate, a lot of older units still have years left in them because they haven’t been run as hard as inland systems. We’ll show you the repair cost and the replacement cost side by side so you can decide with real numbers. Call (361) 306-9515 for a straight answer.
Short-cycling in Novato usually comes from oversized equipment. A unit sized for San Rafael or Petaluma heat will cool a Novato home too fast, shut off, then kick back on minutes later. That kills efficiency, doesn’t dehumidify, and wears out capacitors and contactors early. The fix may be a simple part replacement, or it may be a longer conversation about right-sizing with a proper load calculation. Either way, we’ll tell you exactly what’s happening after we test static pressure and run times.
SEER2 is the updated efficiency rating for central AC and heat pumps. A higher number means lower cooling cost per degree of cooling delivered. But in Novato, where summer highs often stay 10 – 15°F below inland Marin, the SEER2 number matters less than whether the system is sized correctly. An oversized high-SEER unit will still short-cycle and spike your bill. A properly sized mid-efficiency unit in a coastal home often outperforms an expensive one on actual monthly cost. We do the load math, not the brochure math.
Once a year, in spring before the first warm snap. Novato’s wet winters and coastal fog mean dust and moisture build up on coils and electrical connections while the system sits idle. A $80 – $200 tune-up catches a weak capacitor, a slow refrigerant leak, or a corroded contactor before they become a full failure on the first 80-degree day. The tech writes down what he found and what it cost to fix, and our technicians are not paid on what they sell.
Yes. We service heat pumps and mini splits throughout Novato, including the newer high-efficiency systems going into rebuilt homes in Hamilton and the Ignacio corridor. The same written pricing and one-year guarantee apply. Whether it’s a Trane heat pump, a Goodman split, or a Lennox mini-split, the diagnostic process is the same pressure and charge test we’d run on any system.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Novato and the surrounding North Bay since 2003.







Before
After
Before
After
Before
After