Fast, Reliable Heating & Furnace Across Danville
Furnace repair in Danville typically runs $150–$700, while a full furnace replacement ranges from $3,500–$7,500 depending on your home’s zoning and duct configuration. We’re Crestview Heating & Air California, and our Heating & Furnace team makes the drive from San Jose to Danville regularly — usually same-day or next-day for standard calls, faster when the heat’s out entirely. After 19 years in this trade, we know the San Ramon Valley’s housing stock inside out: those big 1980s and ’90s custom homes in Blackhawk, the Alamo Creek tracts, the hillside places off Diablo Road with the original multi-zone systems still chugging along. When your furnace quits on a January night, you want someone who recognizes your equipment before they even open the access panel. Call us at (844) 560-6978.
Why Crestview Heating & Air California Is Danville’s Preferred Heating & Furnace Company
We’ve built our reputation one job at a time — 250+ customers left reviews averaging 4.8 stars, and a healthy slice of those came from Danville and the surrounding San Ramon Valley. Owner Marcus Feldman still serves as our Service Manager, which means when you book with Crestview, you’re getting ownership-level accountability on every call, not a rotating cast of subcontractors.
Our familiarity with Danville’s specific housing patterns saves time and money. We know the Blackhawk gated community’s original 3-zone Carrier and Bryant installations from 1988. We know the Alamo Creek tracts with their 1990s Lennox and Rheem furnaces. We know how the Diablo gap’s summer heat loads stress equipment differently here than in Walnut Creek or Concord. That local fluency means faster diagnostics and fewer return trips.
Emergency HVAC service is available when systems fail outside normal hours. We don’t quote response windows we can’t keep, but we do prioritize no-heat calls in winter and make the run to 94506 and 94526 a regular part of our routing.
Our Heating & Furnace Services in Danville
Furnace Repair
Most furnace repair calls we get in Danville involve ignitor failures, gas valve malfunctions, or blower motor issues in systems that are 25–40 years old. The original venting materials in these homes — single-wall flue pipes running through poorly sealed attics — degrade from decades of condensation, especially with the humidity that funnels through the Diablo gap. A typical furnace repair in Danville runs $150–$700. We stock common parts for Carrier, Trane, Lennox, Goodman, and Rheem to minimize downtime, though some 1980s components are simply discontinued now.
Furnace Replacement
This is where Danville work gets distinctive. In Blackhawk especially, we’re rarely doing a like-for-like swap. Those original 3-zone systems were designed around equipment standards that don’t exist anymore, and the R-22 refrigerant phaseout means the AC side of most dual-fuel setups is unserviceable long-term. We answered a no-heat call in the Blackhawk gated community off Camino Tassajara: a 1988 Carrier gas furnace with a failed draft inducer motor. The owner had been nursing the R-22 AC for years, and with the furnace parts now discontinued and the system 36 years old, we shifted the conversation straight to a full Trane multi-zone replacement with MERV-13 filtration — a typical Danville premium change-out. Furnace replacement in Danville ranges $3,500–$7,500, with most Blackhawk and custom homes landing in the upper half due to zoning complexity.
Furnace Tune-Up
Danville’s shoulder seasons are brutal on equipment. A furnace that cycles hard during 100°F September afternoons, then fires up for 45°F November mornings, accumulates thermal stress fast. Our tune-ups inspect heat exchangers for cracking, test gas pressure and combustion, and check whether your blower motor is drawing excessive amps — a common precursor to failure in these older systems. We recommend annual service, ideally in early fall before the first cold snap hits the valley.
Heat Exchanger Inspection & Replacement
This is non-negotiable safety work. Heat exchangers in Danville’s 1980s custom homes crack from decades of thermal cycling, and the added stress of those hard shoulder-season transitions accelerates the problem. In 1990s Alamo Creek tracts, we’ve found secondary heat exchanger pinhole leaks in legacy Carrier and Bryant furnaces caused by humidity corrosion — a carbon monoxide risk that demands immediate attention. We use combustion analyzers and visual borescope inspection on every heat exchanger check. Replacement costs vary with access difficulty and furnace age; call (844) 560-6978 for a specific assessment.
Gas Valve Repair & Ignitor Replacement
Original gas valves in Danville’s older systems often fail from sediment buildup and diaphragm fatigue. Ignitor replacements are straightforward when parts are available, but some 1980s and early ’90s standing pilot systems require conversion to modern hot-surface ignition. We carry universal and OEM gas valves for Goodman, Rheem, Lennox, and Trane units common to this area.
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 Danville
Your system, our specialty. We maintain factory-trained compatibility across nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. In Danville specifically, we see a lot of Carrier and Bryant from the 1990s Alamo Creek builds, Trane in the higher-end Blackhawk custom homes, and Goodman in some of the later infill from the 2000s. We stock common valves, ignitors, blower motors, and control boards for faster turnaround on repair calls. When a system is too old for practical repair, we’ll quote replacement options that fit your existing duct zoning without forcing a complete redesign.
Common Heating & Furnace Problems We See in Danville Homes
- Heat exchanger cracks from thermal stress. The 100°F summer highs funneling through the Diablo gap don’t just stress your AC. When shoulder-season evenings drop to 50°F, furnaces in Blackhawk’s 1980s custom homes cycle hard after months of dormancy. That thermal shock cracks heat exchangers that were already thinning from age.
- Gas valve and ignitor failures in aging venting systems. Original single-wall flue pipes in Danville’s 1–3 zone systems corrode from decades of condensation, especially in attics that weren’t sealed to modern standards. The resulting backdraft conditions damage gas valves and foul ignitors.
- Secondary heat exchanger pinhole leaks in Carrier/Bryant legacy units. The humidity that rides in on Diablo gap airflow corrodes secondary heat exchangers in 1990s Alamo Creek furnaces. We’ve found CO readings above safe thresholds in units that “seemed fine” to the homeowner.
- R-22 refrigerant obsolescence forcing full system changeouts. In Blackhawk’s 94506 ZIP code, hundreds of homes still run original 1988-era 3-zone systems with R-22 AC coils. When the furnace side needs major repair, the refrigerant side is already a dead end. We nearly always recommend full equipment replacement rather than pouring money into unrecoverable systems.
Pricing for Heating & Furnace in Danville, CA
We don’t do vague “call for pricing” runarounds. Here’s what furnace work actually costs in Danville’s market:
| Service | Price Range |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Replacement | $3,500 – $7,500 |
| Furnace Tune-Up | $95 – $235 |
Replacement costs skew higher in Danville than in many East Bay cities because of the multi-zone ductwork in Blackhawk and hillside custom homes. A 3-zone system with variable-speed blower and MERV-13 filtration runs toward the upper end. Simple single-zone replacements in valley-floor tracts can hit the lower range. Every quote includes equipment, labor, permit coordination, and disposal of your old unit. Estimates are free — call (844) 560-6978 to schedule.
We Also Serve Cities Near Danville
Our route coverage extends throughout the San Ramon Valley and surrounding hills. We regularly handle heating and furnace calls in Blackhawk (those 1988-era 3-zone systems are practically our specialty now), Moraga with its similar hillside housing stock, San Ramon for both residential and commercial HVAC, and Alamo where the Alamo Creek tracts share Danville’s vintage equipment challenges. If you’re unsure whether we cover your address, just call — we probably do.
Serving Danville, CA — Our Local Coverage Area
We’re based in the Danville 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 Danville
Yes, we can repair the furnace independently of the AC side, but we will flag the R-22 issue upfront. The furnace and AC share electrical and control wiring in most 1988 Carrier/Bryant dual-fuel setups, so a full furnace replacement usually requires at least partial AC disconnection. Given R-22’s unavailability at any reasonable price, we typically recommend bundling both into a modern multi-zone system. Call (844) 560-6978 and we’ll assess whether your furnace repair is worth the investment.
At $6,000 for replacement versus a repair that might cost $400–$700, the math depends on your furnace’s age and the repair’s scope. If it’s a 1988–1995 unit with a cracked heat exchanger or discontinued parts, replacement is the safer long-term play. We’ve replaced enough Blackhawk 3-zone systems to know that modern variable-speed equipment with proper zoning saves 20–30% on gas bills, which helps offset the upfront cost. For a repair under $500 on a system under 15 years old, fix it. For anything older with a major failure, we lean toward replacement. Free estimates make the decision easier — call us.
The most common cause is a failing thermocouple or draft inducer not proving proper venting before ignition. In Danville specifically, the single-wall flue pipes in pre-1995 homes corrode and develop small leaks that cause erratic draft pressure. The Diablo gap winds don’t help — gusts can create negative pressure in poorly sealed attics that blows out standing pilots. We check venting integrity, thermocouple output, and inducer motor amps on every no-heat call. A pilot that won’t stay lit is often a symptom of a larger safety issue, not just a nuisance. Call (844) 560-6978 before the first cold night hits.
Heat exchanger replacement in Danville typically runs $1,200–$2,800 including labor, though we often find it’s not practical for furnaces over 15 years old. The access difficulty in multi-zone systems common to Blackhawk and hillside homes can push labor hours up. More importantly, a cracked primary heat exchanger in a 1990s Carrier or Bryant often signals secondary heat exchanger degradation too — we’ve opened units that looked repairable only to find pinhole leaks throughout. We always scope the full heat exchanger assembly before quoting. Call for a specific inspection; estimates are free.
Possibly, but the hills location matters. Furnaces near Diablo Road often run in attics with greater temperature swing and poorer insulation than valley-floor homes. A gas valve that’s slow to open fully, or a high-limit switch tripping from inadequate return airflow, can both cause short heating cycles. The slope terrain also means longer vent runs that are prone to sagging and condensation blockage. We see this pattern enough in hillside Danville to check vent slope and condensate drainage before condemning the gas valve. Call (844) 560-6978 — we’ll diagnose it properly rather than throw parts at symptoms.
Ready to get your Danville furnace sorted? Call Crestview Heating & Air California at (844) 560-6978 for a free estimate. Owner Marcus Feldman still manages every job personally, and we’ll give you straight answers about whether repair or replacement makes sense for your specific system, neighborhood, and budget.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving Danville and the San Ramon Valley since 2005.