Fast, Reliable Heating & Furnace Across Windsor
Heating and furnace repair in Windsor, CA typically costs $150–$700 for most common fixes, and our team can usually diagnose the issue same-day. Crestview Heating & Air California has been keeping Sonoma County homes warm for nearly two decades, and we make the drive up Highway 101 to Windsor regularly. Call us at (844) 560-6978 for a free estimate.
We know Windsor’s neighborhoods well. From the stucco tract homes of Old Redwood to the tidy streets of Orchard Village and Brookside, we’ve worked on the same furnace models again and again. That’s not coincidence. Windsor incorporated in 1992 and grew explosively through the 1990s and 2000s, so over 60% of its housing stock is 20–30 years old, all hitting furnace replacement age simultaneously — a concentrated wave unseen in older Sonoma County towns like Healdsburg or Santa Rosa. When your gas valve fails on a cold January night or your ignitor cracks after another hard temperature swing, you want a technician who’s already seen your exact system. We have.
Why Crestview Heating & Air California Is Windsor’s Preferred Heating & Furnace Company
Our Heating & Furnace team doesn’t treat Windsor as an afterthought. Owner Marcus Feldman still manages jobs in the field, and that ownership-level accountability shows up in how we handle Windsor’s unique housing challenges. We’ve replaced enough 1999-era Carrier valves and cracked ignitors in Atlas Crest homes to know the failure patterns by heart.
250+ customers who left reviews agree — our 4.8-star average reflects real-world performance, not a handful of curated testimonials. Windsor homeowners specifically mention our willingness to explain the repair-versus-replace math for aging systems, and our readiness to discuss smoke filtration upgrades that became essential after the 2019 Kincade Fire forced mass evacuations of this town.
We’re factory-trained across nine major brands, including Trane, Lennox, Goodman, and Rheem. Your system, our specialty. Owner-managed, not outsourced. From emergency calls to full system swaps, we handle the full range.
Our Heating & Furnace Services in Windsor
Furnace Repair
Windsor’s daily temperature swings — 95°F afternoons collapsing to 50°F evenings — punish furnaces that cycle hard all day then fire up again at dusk. Original 1990s–2000s gas valves develop internal corrosion from repeated Diablo wind pressure fluctuations, causing intermittent burner lockout on cold nights. A typical furnace repair in Windsor runs $150–$700. We carry common gas valves, ignitors, and control boards for the Carrier, Lennox, and Goodman systems common in local tract homes, so most repairs finish in a single visit.
Furnace Replacement
With so many Windsor homes built in the same 1995–2005 window, we’re seeing an unusually concentrated wave of system swaps. If your furnace is past 20 years and repair estimates approach half the cost of a new unit, replacement usually wins. New 80% or 96% AFUE systems cut gas bills significantly, and we size them properly for Windsor’s actual heating load — not the original builder’s guess. We also seal and insulate attic ductwork while we’re up there, since Sonoma County summer heat bakes unconditioned ducts and wastes energy.
Furnace Tune-Up
A tune-up in Windsor isn’t just a checklist. We inspect heat exchangers for micro-cracks from decades of daily expansion and contraction, test gas pressure against Diablo wind conditions, and check ignitor resistance before thermal shock cracks it. Our tune-ups run $95–$235. After the Kincade Fire, we also evaluate whether your filter slot can accept MERV-13 media or if we need to add a filter box — this has become standard for Windsor homeowners.
Heat Exchanger Inspection & Repair
This is the safety-critical one. Heat exchangers in 20–30-year-old tract-home furnaces develop micro-cracks from daily expansion and contraction, risking CO leakage into living spaces. We use visual inspection, combustion analysis, and borescope cameras when needed. Heat exchanger inspection runs $150–$700. If we find cracks, we’ll show you the footage and explain replacement versus full system swap. No scare tactics. Just facts.
Ignitor Replacement
Silicon-carbide ignitors in Windsor’s original furnaces crack from thermal shock when systems cycle hard during hot afternoons then fire up for evening heating. Universal silicon-nitride upgrades last longer and handle the stress better. Ignitor replacement in Windsor typically costs $150–$700.
Gas Valve Repair
That sulfur smell you noticed? Probably a cracked silicone diaphragm in the gas valve, exactly what we found on that 1999 Carrier in Old Redwood. Gas valve repair or replacement runs $150–$700. We test manifold pressure, check for delayed ignition, and verify safe operation before we leave.
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 Windsor
We service equipment from nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Windsor’s 1990s–2000s housing stock, we see a lot of Carrier and Lennox from the original builds, plus Goodman replacements from the last decade. We stock common parts locally and have supplier relationships in Santa Rosa for same-day or next-morning turnaround on less common items. You won’t hear “we don’t work on that” from us.
Common Heating & Furnace Problems We See in Windsor Homes
- Gas valve lockout after Diablo wind events. The pressure fluctuations that precede those hot, dry winds push debris into valve orifices and stress diaphragms. We replaced a 1999-era Carrier gas valve and ignitor on an Atlas Crest home in the Old Redwood subdivision. The homeowner smelled sulfur each evening because the silicone valve diaphragm had cracked after a Diablo wind pressure swing. We swapped in a new Honeywell gas valve and a universal silicon-nitride ignitor, restored 85°F supply air in 20 minutes, and added a MERV-13 filter box to handle smoke infiltration.
- Ignitor failure from thermal shock. Windsor’s 40-degree daily temperature swings mean your furnace might cycle five or six times on a hard day. Silicon-carbide ignitors hate that. We upgrade to silicon-nitride when we can.
- Heat exchanger micro-cracks in 20–30-year-old furnaces. The constant expand-contract cycle of two decades of heating seasons eventually wins. We catch these before they become a CO risk.
- Attic ductwork sweating and losing efficiency. Windsor’s unconditioned attics hit 130°F in summer. Fiberglass ducts degrade, seams separate, and your furnace works harder for less result. We seal and insulate while we’re up there.
Pricing for Heating & Furnace in Windsor, CA
| Service | Typical Range in Windsor |
|---|---|
| Furnace Repair | $150–$700 |
| Ignitor Replacement | $150–$700 |
| Gas Valve Repair | $150–$700 |
| Heat Exchanger Inspection | $150–$700 |
| Furnace Tune-Up | $95–$235 |
What moves you within these ranges? Parts availability for your specific brand and year, whether we need to modify the filter box for MERV-13 upgrades, and accessibility of your attic ductwork. We give upfront pricing before any work begins. Estimates are free. Call (844) 560-6978 for yours.
We Also Serve Cities Near Windsor
Our service radius covers Larkfield-Wikiup to the south, Healdsburg to the north, Santa Rosa to the southeast, and Roseland for commercial HVAC calls. Each community has different housing stock and different heating challenges. Windsor’s concentrated 1990s–2000s builds are unique in Sonoma County, but the principles of honest diagnosis and owner-managed service apply everywhere we work.
Serving Windsor, CA — Our Local Coverage Area
We’re based in the Windsor 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 Windsor
Usually yes, if the heat exchanger passes inspection and the ignitor isn’t also failing. A gas valve replacement runs $150–$700, which is far less than a full system swap. We see this exact failure pattern in Orchard Village — the original Carrier valves develop diaphragm cracks after years of Diablo wind pressure swings. Call (844) 560-6978 and we’ll test the full ignition sequence to make sure you’re not throwing good money after a dying system.
If your furnace has a standard 1-inch filter slot, MERV-13 media will work but may restrict airflow on older blowers. We often add a 4- or 5-inch filter box to handle MERV-13 or better without straining the system. Windsor’s fall wind events bring smoke, heat, and low humidity simultaneously — the worst combination for indoor air quality. The upgrade pays for itself in cleaner air and less blower wear. We can evaluate your current setup on any service call.
That’s thermal shock to a cracked ignitor or a failing flame sensor. Brookside homes, like most in Windsor, have furnaces that cycle hard during 95°F afternoons for fan-only or cooling operation, then fire up for evening heat. The rapid temperature swing stresses silicon-carbide ignitors. We replace with silicon-nitride upgrades that handle the stress. Ignitor replacement is $150–$700. Call us before it fails completely on a cold night.
Many are repairable for now, but we’re reaching the end of reliable parts availability for certain Lennox control boards and heat exchangers. If your unit is 25+ years old and needs a major repair, we show you the math. A new 96% AFUE system typically cuts gas bills 20–30% and qualifies for utility rebates. We’ll give you honest numbers either way. No pressure.
It’s an attic issue that makes your furnace work harder. Unconditioned attic space in Windsor hits extreme temperatures, and poorly insulated ducts sweat where cold supply air meets hot humid attic air. The moisture degrades ductboard and drops insulation value. We seal with mastic, wrap with proper insulation, and sometimes add radiant barrier. Your furnace doesn’t work as hard, your bills drop, and the system lasts longer. We handle this on replacement jobs or as standalone ductwork service.
Ready to get your Windsor home’s heating sorted? Call Crestview Heating & Air California at (844) 560-6978 for a free estimate. Owner Marcus Feldman and our team will give you straight answers, real numbers, and work done right.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving Windsor and Sonoma County since 2005.