Fast, Reliable Heating & Furnace Across Los Gatos
Heating and furnace repair in Los Gatos typically costs $150–$700 for repairs, $3,500–$7,500 for full replacement, and most service calls are completed same-day. Our Heating & Furnace team serves every corner of this split market, from the valley-floor ranch homes of 95032 to the propane-heated mountain properties above Aldercroft Heights in 95033.
We’ve been driving to Los Gatos long enough to know the difference between a quick turn off Highway 17 and a winding climb up Black Road to a Chemeketa Park job site where the fog line sits below you and the propane tank’s reading matters more than the thermostat setting. Gregory Hahn founded this company and still leads every technical decision, and that means when we dispatch to Los Gatos, we’re sending a Master Technician’s diagnostic standard, not a checklist-trained rookie. Call (844) 875-9451 for a free estimate.
Why Redwood Heating & Air San Diego Is Los Gatos’s Preferred Heating & Furnace Company
Los Gatos homeowners have left us 428 verified reviews averaging 4.6 stars over 13 years, and a significant share of those come from repeat customers in the 95030 and 95032 ZIP codes who originally called us for an emergency furnace failure and stayed because the diagnosis held up. We’re not a franchise dispatching whoever’s available; Gregory Hahn built this operation on the principle that the person diagnosing your system should understand why your 1980s Bryant behaves differently in a Los Gatos thermal bowl than the same model in coastal Santa Cruz.
Our response time to Los Gatos averages under 90 minutes for emergency calls, and we carry parts for Carrier, Trane, Lennox, and American Standard on every truck, which matters when a January freeze is hitting the mountain communities and your propane regulator ices over. We service your brand, not just the one we sell, and that brand-agnostic fluency is especially critical in Los Gatos, where a technician who only knows gas furnaces will be useless in 95033 and one who only pushes heat pumps will misdiagnose a perfectly salvageable propane system.
Our Heating & Furnace Services in Los Gatos
Furnace Repair
Furnace repair in Los Gatos runs $150–$700 depending on the component and accessibility. On the valley floor, we see a lot of failed ignitors and gas valves in 1960s–1980s ranch homes where the original equipment has cycled through thousands of Santa Clara Valley heat waves. In the mountains, it’s often a propane regulator issue or a control board that can’t handle the voltage fluctuation from a generator backup. We recently replaced a 1989-era propane furnace in a Chemeketa Park home high above the Lexington Reservoir. The original unit, installed after the Loma Prieta earthquake, had a cracked heat exchanger. We swapped in a new propane-compatible Lennox furnace, routing the condensate line through a steep, wooded slope to avoid freeze damage. The homeowner now has reliable heat without needing a gas main extension.
Furnace Replacement
A full furnace replacement in Los Gatos typically costs $3,500–$7,500, with mountain installs at the higher end due to access complexity and propane conversion requirements. This is where Los Gatos’s split market really shows. In 95032, we’re often pulling out an 80% AFUE Carrier or Trane and swapping in a high-efficiency model, but we have to address the undersized ductwork first or the new unit will short-cycle itself to death. In 95033, we might be converting from an old propane furnace to a newer propane unit, or discussing whether an all-electric heat pump makes sense given the homeowner’s solar array and PG&E’s time-of-use rates. Gregory Hahn personally reviews every replacement quote to make sure we’re specifying the right fuel source, efficiency tier, and duct modifications for the specific address.
Furnace Tune-Up
Annual furnace tune-ups in Los Gatos cost $80–$200 and are non-negotiable if you want to avoid midwinter failure. In the 95030 downtown-adjacent neighborhoods, we’re cleaning burners in tight basement utility closets of 1920s craftsman homes where the original coal chute is now a ventilation nightmare. On the flatlands, we’re testing gas pressure and checking heat exchanger integrity in ranch homes that have run their original Bryant or American Standard for 25-plus years. Mountain tune-ups include propane tank level verification, regulator freeze-protection inspection, and condensate line routing checks, because a blocked line at 1,800 feet in January doesn’t just cause a service call, it causes ice damage to your siding.
Heat Exchanger Inspection & Replacement
Cracked heat exchangers are a safety-critical failure we find regularly in Los Gatos’s post-Loma Prieta rebuild stock. That 1989 earthquake triggered a wave of construction across the Santa Cruz Mountains, and the furnaces installed in those early-1990s homes are now 30-plus years old, well past their designed service life. We use combustion analyzers and visual borescope inspection to verify heat exchanger integrity, and if we find a crack, we red-tag the unit and walk you through replacement options same-day. No exceptions. Carbon monoxide doesn’t care about your schedule.
Ignitor Replacement & Gas Valve Repair
Hot surface ignitors fail every 3–5 years in Los Gatos’s heating climate, and gas valves develop intermittent operation from thermal cycling. We stock both for Carrier, Trane, Lennox, and American Standard systems, and we can usually complete the repair in a single visit. In historic 95030 bungalows, access is often the challenge, not the part itself; we’ve replaced ignitors through 18-inch crawlspace hatches and reassembled gas valve trains in closets that haven’t been opened since the Reagan administration.
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 Los Gatos
We service your brand, whether it’s a 1995 Goodman in a 95032 ranch or a top-tier Carrier Infinity system in a hillside custom build. Our factory training and field experience cover nine major HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Los Gatos customers, that means we’re not ordering parts from a warehouse in San Jose and hoping they fit; we carry the most common ignitors, gas valves, control boards, and heat exchanger gaskets for these brands on every truck, and our supplier relationships get us next-day access to less common components. The right fix, not the convenient upsell.
Common Heating & Furnace Problems We See in Los Gatos Homes
- Propane supply failures in 95033 mountain homes. Aldercroft Heights and Chemeketa Park properties rely on above-ground or buried propane tanks, and midwinter runouts or regulator freeze-ups are common when technicians underestimate the altitude and exposure. We check tank levels and regulator specifications as standard practice on every mountain service call.
- Undersized ductwork choking new high-efficiency furnaces in 95032 ranches. Those 1960s–1980s tract homes were built with duct systems designed for 80% AFUE units at best. Drop in a modern variable-speed furnace without addressing static pressure, and you’ll get short-cycling, uneven heat, and premature failure. We measure before we quote.
- No ductwork at all in 1920s–1940s 95030 craftsman bungalows. Spanish-revival and craftsman homes near downtown Los Gatos were never built for forced air. Homeowners sometimes limp along with space heaters or window units, which creates fire hazards and never heats evenly. We design mini-split or high-velocity retrofit solutions that don’t destroy original plaster and trim.
- Post-Loma Prieta earthquake-rebuild furnaces hitting end-of-life simultaneously. A significant cohort of systems throughout Los Gatos dates to the early 1990s rebuild wave, with the epicenter in the mountains directly above town. These 30-plus-year-old units are failing in clusters, and the replacement decision is complicated by changed energy codes, fuel availability, and modern efficiency requirements.
Pricing for Heating & Furnace in Los Gatos, CA
Honest pricing starts with actual numbers, not a phone call to find out what you’ll really pay.
| Service | Price Range in Los Gatos |
|---|---|
| Furnace Repair | $150–$700 |
| Furnace Replacement | $3,500–$7,500 |
| Furnace Tune-Up | $80–$200 |
| Heat Exchanger Inspection | $95–$235 (often bundled with tune-up) |
| Ignitor Replacement | $175–$400 |
| Gas Valve Repair/Replacement | $250–$650 |
What moves you within these ranges? Accessibility matters: a furnace in a 95032 garage closet costs less to service than one in a 95033 crawlspace on a 30-degree slope. Fuel type matters: propane system work requires additional safety verification and specialized fittings. Duct modification needs matter: replacing a furnace without addressing airflow is a waste of money, and we’ll tell you so upfront. Every estimate we provide to Los Gatos homeowners is free, detailed, and valid for 30 days. Call (844) 875-9451 to schedule yours.
We Also Serve Cities Near Los Gatos
Our service radius extends naturally from Los Gatos into Saratoga to the north, Campbell and Communications Hill to the east, and Cupertino to the northeast. Many of our Los Gatos customers originally found us through a referral from a Campbell commercial client or a Saratoga neighbor who’d used our Heating & Furnace team for a similar vintage home. The same Master Technician standard applies whether we’re driving to a Cupertino tech campus or a Chemeketa Park mountainside.
Serving Los Gatos, CA — Our Local Coverage Area
We’re based in the Los Gatos 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 — Heating & Furnace in Los Gatos
Yes, we regularly install propane-compatible furnaces in Aldercroft Heights and throughout 95033, and we carry the specialized conversion fittings and combustion orifice specifications that gas-only technicians often don’t stock. Every propane replacement we quote includes tank-level verification, regulator sizing confirmation, and condensate freeze-protection planning as standard. Call (844) 875-9451 and we’ll schedule a site visit to assess your current tank setup and venting configuration.
A new high-efficiency furnace will not perform properly with undersized ducts, and we won’t install one without addressing the airflow restriction first. We measure static pressure and duct capacity during every replacement quote in 95032; sometimes the fix is a duct redesign, sometimes it’s specifying a furnace with a lower airflow requirement, and sometimes it’s recommending a different technology entirely. We’ll give you the real diagnosis, not the easy sale. Call (844) 875-9451 for a free assessment.
Yes, we replace ignitors and service gas valves in the 1920s–1940s craftsman and Spanish-revival homes of 95030, including tight-access installations where the furnace was retrofitted into a former coal cellar or added to a cramped utility closet. We’ve worked in crawlspaces with 18-inch clearances and attic hatches that require us to remove the access door entirely. If your bungalow has a forced-air furnace, we can service it. Call (844) 875-9451 to describe your access situation.
Short-cycling during storms usually indicates low propane pressure, a freezing regulator, or a blocked vent intake, and you should turn the system off and call us immediately to prevent damage or unsafe operation. Don’t try to reset it repeatedly; propane combustion under pressure fluctuation can produce incomplete burn and carbon monoxide risk. Our emergency line is (844) 875-9451, and we prioritize 95033 calls during freeze events because we know the exposure those mountain homes face.
Yes, we design and install cold-climate heat pumps for Chemeketa Park and other 95033 properties, and for homes with adequate solar generation, the operating cost can beat propane delivery significantly. The key variables are your home’s insulation level, available electrical panel capacity, and whether you want backup resistance heat or a dual-fuel propane hybrid for the coldest nights. Gregory Hahn reviews every mountain heat pump proposal personally to make sure the specifications match the altitude and exposure. Call (844) 875-9451 for a load calculation and comparison quote.
Written by Gregory Hahn, Owner at Redwood Heating & Air San Diego, serving Los Gatos since 2012.