Fast, Reliable Heating & Furnace Across Los Altos
Heating and furnace repair in Los Altos typically costs $175–$825, with most service calls completed same-day when you call (844) 560-6978. We’re Crestview Heating & Air California, and our Heating & Furnace team has been driving to Los Altos from our San Jose base for nearly two decades. We know the difference between a 94022 ranch off Covington Road and a rebuilt home near downtown 94024, and we know why that matters for your furnace.
Los Altos sits where Bay flatlands meet the Santa Cruz Mountain foothills, and that geography creates real heating challenges. Western 94022 traps radiant heat from the slopes and runs 6–10°F warmer on summer afternoons than the eastern edge near El Camino Real. Diablo wind events push western neighborhoods above 100°F while flat 94024 stays in the high 80s. Your furnace doesn’t care about zip code boundaries, but it absolutely cares about whether the previous installer sized it for your specific microclimate. We’ve replaced too many furnaces that were oversized for western Los Altos and short-cycle themselves to death, or undersized for older homes with leaky original ductwork.
Most Los Altos homes are 1950s–1970s ranch builds on 6,000–10,000 square foot lots. Many still have original sheet-metal ductwork that was never engineered for modern equipment. When your furnace fails at 6 a.m. on a January morning, you need a technician who understands that your home’s heating problem might be a duct problem in disguise. Call (844) 560-6978 for a free estimate.
Why Crestview Heating & Air California Is Los Altos’s Preferred Heating & Furnace Company
Our reputation in Los Altos was built one ranch home at a time. We’ve worked on original furnaces in the Highlands neighborhood, replaced systems in Country Club area rebuilds, and done emergency heat exchanger repairs on Christmas Eve near the Village. 250+ customers who left reviews agree — our 4.8-star average reflects real jobs, not curated testimonials.
Marcus Feldman, our owner, still serves as Service Manager. That means when you call Crestview, you’re not getting dispatched through a call center to whoever’s available. Marcus reviews the job specs, and he or a technician he personally manages shows up at your Los Altos door. Owner-managed, not outsourced.
We’re typically 20–30 minutes from most Los Altos addresses during normal traffic. For emergency heating calls — and we’ve done plenty when furnaces fail during cold snaps — we prioritize Los Altos alongside our San Jose base. We carry common ignitors, gas valves, and limit switches for Trane, Lennox, Goodman, and Rheem systems, so most repairs don’t wait for parts.
Our local knowledge runs deep. We know the City of Los Altos Building Department requires permits for furnace replacements and that their inspectors check combustion air requirements carefully in older homes with converted garages. We’ve passed enough inspections to know what they’ll flag before they flag it.
Our Heating & Furnace Services in Los Altos
Furnace Repair
Furnace repair in Los Altos runs $175–$825 depending on the component and accessibility. The most common call we get from 94022 and 94024 ranch homes is a failed ignitor or cracked heat exchanger on a 20+ year system. But we’re also seeing more limit switch trips caused by undersized 1960s ductwork that can’t handle the static pressure of modern high-efficiency furnaces. We don’t just swap the part that failed. We check static pressure, measure temperature rise, and tell you if your ductwork is setting up the next failure. That’s the difference 19 years in this trade makes.
Furnace Replacement
This is where Los Altos gets complicated — and where our expertise pays off. In western Los Altos (94022), homes built before 1972 often have original 1960s trunk-and-branch ductwork that is undersized by Manual D standards for modern heat pumps, causing static pressure imbalances that require a full duct audit before any furnace replacement. We serviced a 1962 ranch home on Covington Road where the original Carrier gas furnace had a cracked heat exchanger from decades of use. The homeowner wanted a high-efficiency Lennox heat pump, but our duct audit revealed two different duct generations — original sheet metal in the bedrooms and flex added in the 1990s — creating a 0.8-inch static pressure mismatch. We replaced the entire trunk line and installed a multi-zone Daikin system with smart controls, balancing the system so every room reaches setpoint within 1°F. Furnace replacement in Los Altos isn’t just about swapping boxes. It’s about understanding whether your ranch home’s infrastructure can support what you want.
Furnace Tune-Up
A furnace tune-up in Los Altos costs $95–$235 and should happen every fall before the heating season. For older systems in original ranch homes, we pay special attention to heat exchanger integrity — cracked exchangers can leak carbon monoxide into living spaces with the original floor-plan layouts common in 94022 and 94024. We also measure combustion analysis, check gas pressure, and inspect blower motors that are working harder than designed because of restrictive ductwork. Nearly two decades of HVAC experience means we’ve seen how Los Altos’s patchwork duct additions from partial remodels create unbalanced airflow, leading to hot/cold spots and premature blower motor failure. We catch that before your January emergency call.
Heat Exchanger Inspection & Replacement
Heat exchanger failure is the most serious problem a gas furnace can have. In Los Altos’s 1950s–1970s ranch homes, we’ve found cracked exchangers on systems that ran for 25–35 years without proper maintenance. The original Carrier, Rheem, and Lennox furnaces in this area were built to last, but metal fatigue from decades of thermal cycling eventually wins. We use combustion analyzers and visual inspection cameras to verify exchanger integrity. If replacement is needed, we’ll show you the crack and explain your options: heat exchanger replacement on a younger system, or full furnace replacement if the unit is past its reasonable lifespan. Safety first. No exceptions.
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 Altos
Your system, our specialty. We service nine major HVAC brands — Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard — and we stock common parts for Los Altos customers to minimize wait times. We’ve worked on original Lennox pulse furnaces in 1960s Los Altos ranches, installed Goodman systems in teardown rebuilds, and maintained Trane variable-speed furnaces in smart-home retrofits. Because Marcus Feldman manages our parts inventory personally, we don’t tell you “we’ll order it and come back next week” unless it’s genuinely obscure. Most ignitors, gas valves, flame sensors, and limit switches are on the truck.
Common Heating & Furnace Problems We See in Los Altos Homes
- Undersized 1960s ductwork causes limit switch trips. Original ranch homes in 94022 and 94024 have sheet-metal trunk lines designed for the static pressure of a 1970s furnace, not a modern 96% efficient unit. The furnace overheats, the limit switch trips, and homeowners think they have a bad furnace when they have a duct problem.
- Patchwork duct additions create unbalanced airflow. Homes partially remodeled over decades often have original trunk-and-branch in bedrooms, flex duct added in the 1990s to a family room, and a newer air handler in a converted garage. No single thermostat can balance that mess without a full duct audit and likely zoning.
- East-west microclimate splits lead to oversized equipment. Western 94022’s heat exposure tempts homeowners and inexperienced installers to oversize furnaces, resulting in short cycling, poor humidity control, and premature failure. We’ve corrected multiple installs where a 60,000 BTU furnace was crammed into a home that needed 40,000 with better ductwork.
- Original heat exchangers reaching end of life. The 25–35 year furnaces common in unremodeled Los Altos ranches are now at or past design life. Carbon monoxide risk is real. We check every one we touch.
Pricing for Heating & Furnace in Los Altos, CA
| Service | Price Range in Los Altos |
|---|---|
| Furnace Repair | $175–$825 |
| Furnace Tune-Up | $95–$235 |
| AC Installation (for reference) | $4,130–$8,850 |
| AC Repair (for reference) | $175–$765 |
What moves the needle within these ranges? Accessibility matters — furnaces in converted garage closets or tight attic spaces take longer. Parts availability matters — we stock common components, but a failed control board for a 30-year-old system may need to be sourced. And ductwork condition matters enormously in Los Altos. A furnace replacement quote that doesn’t include a duct audit is incomplete for most 94022 and 94024 homes. We give free estimates because every job has variables, but we don’t use “it depends” to avoid giving you numbers. Call (844) 560-6978 for your exact quote.
We Also Serve Cities Near Los Altos
Our service radius extends naturally to Los Altos Hills for hillside homes with unique venting challenges, Mountain View for the tech-corridor residential and light commercial buildings, Stanford for university-adjacent properties, and Sunnyvale for the broader South Bay heating market. Same owner-managed service, same multi-brand expertise, same free estimates.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos 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 Altos
No, not responsibly. Original 1960s trunk-and-branch ductwork in Los Altos ranch homes is typically undersized by modern Manual D standards and cannot handle the static pressure of a heat pump’s air handler. We always perform a duct audit first. Call (844) 560-6978 to schedule yours — estimates are free.
Western 94022’s greater heat exposure from the Santa Cruz Mountain foothills often leads to oversized furnace installations that short-cycle. Your system heats the house too quickly, shuts off, then restarts minutes later. Proper load calculation for your specific microclimate, not your zip code average, fixes this. We measure before we quote.
Yes, but only after a duct audit reveals whether your existing infrastructure can support zoning dampers without creating new pressure problems. Many Los Altos homes with patchwork duct generations need trunk line replacement before zoning makes sense. We’ve installed multi-zone Daikin and Lennox systems in exactly these conditions.
Yes. We offer emergency HVAC service including Sunday ignitor replacements in Los Altos. Most ignitors for Carrier, Lennox, Goodman, Rheem, and Trane systems are on our trucks. Call (844) 560-6978 — we’ll give you a straight time estimate and price before we head out.
Yes. The City of Los Altos Building Department requires permits for all gas furnace replacements, and their inspectors verify combustion air requirements especially carefully in older homes with converted garages. We pull permits on every replacement we do and coordinate inspections so you’re not chasing paperwork.
Written by Marcus Feldman, Owner and Service Manager at Crestview Heating & Air California, serving Los Altos and the South Bay since 2006.
Ready to get your Los Altos home heating right? Call Crestview Heating & Air California at (844) 560-6978 for a free estimate. Owner-managed, not outsourced. Nearly two decades of HVAC experience. Your system, our specialty.