Heating & Furnace in Novato — Same-Day Service, Done Right the First Time

Fast, Reliable Heating & Furnace Across Novato

Heating and furnace service in Novato typically costs $150–$700 for repairs, $80–$200 for tune-ups, and $3,500–$7,500 for full replacement. Most calls in the 94948 and 94949 ZIP codes are handled same-day or next-day. Call (844) 560-6978 for a free estimate.

Call (844) 560-6978

We’re Crestview Heating & Air California, and we’ve been driving up to Novato from our San Jose base for nearly two decades. Owner Marcus Feldman still manages every job as Service Manager, so when you call us, you’re talking to someone with skin in the game, not a dispatcher reading from a script. We know the difference between a 1960s tract home off Novato Boulevard and a converted military unit in Hamilton Landing. That local knowledge matters when your furnace quits on a January morning and you need someone who understands what they’re walking into.

Why Crestview Heating & Air California Is Novato’s Preferred Heating & Furnace Company

Our Heating & Furnace team has built a 4.8-star average across 250+ verified reviews by showing up prepared and staying until the job’s done right. Novato customers specifically mention our willingness to explain what’s actually wrong with their system, not just hand them a bill.

Novato’s inland valley geography creates heating and cooling challenges that coastal Marin simply doesn’t face. The city sits north of the Marin hills, shielded from the marine layer that keeps Sausalito and Mill Valley cool. Summer temperatures spike to 90–100°F while the coast stays fogged in. Yet most of Novato’s housing stock, those single-story and split-level tract homes built from 1955 to 1985, was constructed with forced-air heat only. No cooling infrastructure. No oversized ductwork. Just a furnace sized for winter load, struggling through increasingly hot summers.

That mismatch between climate reality and original construction is why we’ve done more furnace-to-AC retrofits in Novato than anywhere else in Marin County. We know the crawlspaces, the undersized returns, the galvanized ductwork that can’t handle modern static pressure requirements. Marcus has personally walked hundreds of these homes and can usually diagnose the ductwork limitations before we even pull the furnace.

When Novato residents call for emergency heating service, we prioritize the call. Winter nights in the 94948 ZIP can drop into the 30s, and a failed furnace isn’t a tomorrow problem. Our emergency HVAC service means we answer outside normal hours, and our familiarity with Novato’s neighborhoods, from Ignacio to Hamilton Landing to the older homes near downtown, gets us there faster.

Our Heating & Furnace Services in Novato

Furnace Repair in Novato

Furnace repair in Novato runs $150–$700 depending on the component and accessibility. The most common calls we get are for ignitor failures, gas valve issues, and limit-switch trips caused by airflow restrictions. In Novato’s 1960s–70s tract homes, undersized return-air ducts are epidemic. The original builders sized everything for heat only, with minimal return pathways. That airflow starvation causes the high-limit switch to trip repeatedly, and homeowners think they have a bad switch when they actually have a bad duct design. We fix the immediate failure and tell you honestly whether the ductwork needs addressing.

Rust is another Novato-specific problem. Salt-laden fog seeps through unsealed garage doors and attacks furnace cabinets mounted in garage installations. We’ve replaced heat exchangers in Hamilton Landing and Ignacio homes where the exterior rust looked cosmetic but had penetrated to the combustion chamber. If your furnace lives in the garage, we inspect for corrosion every time we open the cabinet.

Furnace Replacement in Novato

Full furnace replacement in Novato costs $3,500–$7,500, with the upper end reflecting ductwork modifications or high-efficiency modulating equipment. This is where Novato’s unique housing stock becomes critical. A straight furnace swap in a 1970s tract home is rarely straight. The original ductwork was built for heat-only airflow, typically 0.08 inches per 100 feet of static pressure design. Add a cooling coil for AC retrofit, and that jumps to 0.5 or higher. The old ducts can’t handle it.

We recently retrofitted a 1972 split-level on Novato Boulevard with a Trane 96% modulating furnace and ducted AC, upgrading from a 40-year-old gravity-furnace system that was undersized for the actual load. The original ductwork, built only for heat, couldn’t handle the static pressure of a new coil, so we had to replace three main supply runs in the crawlspace to meet airflow specs. Marcus oversaw the job personally. That’s the difference between a company that swaps boxes and one that engineers the system to actually work.

For Novato customers who want both heating and cooling without full duct replacement, we often recommend high-velocity or ductless mini-split options. But when you want central comfort in these homes, the furnace replacement becomes a system redesign. We price that honestly upfront, not as a surprise change order.

Furnace Tune-Up in Novato

A furnace tune-up in Novato runs $80–$200 and should happen annually, ideally in early fall before the first cold snap. Our tune-ups include combustion analysis, heat exchanger inspection, gas pressure verification, blower amp draw, and a full corrosion check on garage-mounted units.

Novato’s Petaluma Gap winds create a secondary issue: debris infiltration in outdoor condensers paired with furnaces. Even in heating season, afternoon gusts can carry leaves and dust into combined heating-cooling systems. We clean the condenser coils during fall tune-ups because a blocked coil in winter means the heat pump auxiliary strips run overtime, spiking your electric bill. And we check wind baffles on outdoor units. A condenser that’s fine in San Jose can rattle itself loose in Novato’s sustained afternoon gusts.

Heat Exchanger Inspection and Replacement in Novato

The heat exchanger is the heart of your furnace and the one component that can kill you if it fails. Cracked heat exchangers allow carbon monoxide into your living space. In Novato, we see accelerated heat exchanger deterioration in two specific scenarios: garage-mounted furnaces with salt corrosion, and furnaces that have been short-cycling for years due to airflow problems.

Rust on the exterior cabinet isn’t always structural, but rust around the burner ports, flue collar, or heat exchanger seams is non-negotiable. We use combustion analyzers and visual borescope inspection to verify integrity. If we find a crack, we red-tag the furnace and shut it down. No exceptions. Replacement heat exchangers are available for most Trane, Lennox, Goodman, and Rheem models we see in Novato, though in units over 15 years old, full furnace replacement is usually more cost-effective.

Trusted Brands We Service in Novato

We service nine major HVAC brands, and we keep common parts stocked for Novato calls: Trane, Lennox, Goodman, Rheem, Carrier, York, Daikin, Bryant, and American Standard. Your system, our specialty. That means no one in Novato gets told “we don’t work on that brand.” Marcus is factory-trained across the full lineup, and our San Jose warehouse stocks ignitors, gas valves, blower motors, and control boards for the models we see most often in Marin County tract homes. Fast turnaround matters when your furnace is down and the temperature’s dropping in the 94949 ZIP.

Common Heating & Furnace Problems We See in Novato Homes

• Short-cycling from undersized returns. The original ductwork in Novato’s 1960s–70s homes was designed for heating airflow only. When homeowners add cooling or even just run the blower more frequently, the return ducts can’t deliver enough volume. The furnace overheats, hits the high-limit, and shuts down prematurely. We measure static pressure and calculate actual airflow needs against your duct capacity.
• Corrosion in garage-mounted units. Salt-laden marine air penetrates garage door seals and attacks furnace cabinets, burners, and heat exchangers. We’ve replaced prematurely failed heat exchangers in Ignacio homes where the furnace was only 12 years old. Annual inspection catches this before it becomes a safety issue.
• Ignitor failure in high-cycling systems. Hot-surface ignitors in modern furnaces are reliable, but they degrade with every ignition cycle. A furnace that’s short-cycling due to airflow problems burns through ignitors every 2–3 years instead of every 7–10. We fix the root cause, not just the symptom.
• Blower motor burnout from restricted airflow. When return ducts are too small or filters are neglected, the blower works harder and draws more amps. In Novato’s older homes with original ductwork, we see blower motors failing at 8–10 years instead of 15–20. We test amp draw during every service call and warn you before the motor dies.

Pricing for Heating & Furnace in Novato, CA

We Also Serve Cities Near Novato

Our service area extends throughout central and southern Marin County. We regularly handle heating and furnace calls in Lucas Valley-Marinwood, where the hillside homes present their own ductwork challenges; San Rafael, with its mix of historic and modern construction; Fairfax, where forested settings create unique air quality considerations; and San Anselmo, with its steep lots and crawlspace access issues. Same owner-managed service, same technical range, same commitment to showing up prepared.

FAQs — Heating & Furnace in Novato