Fast, Reliable Heating & Furnace Across Larkspur
Heating and furnace service in Larkspur runs $175–$825 for repairs and $3,500–$7,500 for full replacements, with most repair calls completed same day. Our team at Crestview Heating & Air California makes the drive from San Jose to Larkspur regularly, and we know the local conditions that shape every job. Call (844) 560-6978 for a free estimate.
We’ve been working in Marin County for nearly two decades, and Larkspur’s mix of historic Victorians, hillside ranch homes, and waterfront properties presents heating challenges you won’t find in newer suburban developments. The valley heat that builds up on summer afternoons, the salt air drifting from San Francisco Bay, and the strict energy codes Marin County enforces all affect how we approach furnace repair and replacement here. Whether you live in a balloon-frame cottage near Magnolia Avenue or a split-level up in the hills, we’ve likely serviced a home just like yours.
Why Crestview Heating & Air California Is Larkspur’s Preferred Heating & Furnace Company
Our 4.8-star average across 250+ customer reviews reflects real performance on real jobs, not cherry-picked testimonials. Larkspur homeowners have left us reviews specifically mentioning our familiarity with older systems and our willingness to explain options without pressure.
Owner Marcus Feldman serves as our Service Manager, which means the person answering your questions and overseeing your job has direct ownership stake in the outcome. We’re not a franchise dispatching whoever’s available. Marcus has 19 years in the HVAC industry, and that tenure matters when you’re diagnosing a 1960s Rheem with obsolete parts or figuring out how to heat a Victorian with no ductwork.
We carry factory-trained compatibility across nine major brands, including Trane, Lennox, Goodman, and Rheem. For Larkspur customers, this means faster repairs because we don’t waste time sourcing parts we’re unfamiliar with. Your system, our specialty.
From emergency calls to commercial buildouts, our range exceeds most local HVAC shops. When a furnace fails on a cold January night in Larkspur, we offer emergency HVAC service to get heat restored.
Our Heating & Furnace Services in Larkspur
Furnace Repair in Larkspur
A typical furnace repair in Larkspur costs $175–$825 depending on the part and accessibility. In Old Town, we regularly see ignitor failures in 30-year-old Lennox units and gas valve problems in original 1950s wall heaters. The hillside ranch homes often have Goodman or Rheem furnaces with cracked heat exchangers from decades of cycling. We diagnose first, quote upfront, and stock common parts to minimize return trips across the Richmond-San Rafael Bridge.

Furnace Replacement in Larkspur
Furnace replacement in Larkspur runs $3,500–$7,500, with most projects in the $4,500–$6,000 range for a properly sized system. This is where Larkspur’s housing stock gets interesting. That 1910 Victorian on Magnolia Avenue? No ductwork, no chase space, no easy path for forced air. We recently serviced a home just like it where the original gravity furnace had finally failed after 110 years. The homeowner had no ductwork, so we installed a multi-zone ductless mini-split system with a heat pump for both heating and cooling. We mounted the compact outdoor unit on a bracket to avoid salt air corrosion from the nearby bay, and the interior wall-mounted units blend with the home’s historic character. For the 1960s split-levels with original undersized ducts, replacement often means upsizing the furnace and modifying duct runs to meet Title 24 requirements.

Furnace Tune-Up in Larkspur
A furnace tune-up in Larkspur costs $95–$235 and typically takes 60–90 minutes. We recommend annual service before the heating season, especially for homes near Larkspur Landing where salt air accelerates corrosion on outdoor components. Our tune-up includes combustion analysis, heat exchanger inspection, gas pressure verification, and filter assessment. For older systems in Old Town, we also check for cracked fireboxes and deteriorated venting that could introduce carbon monoxide into living spaces.

Heat Exchanger Repair & Replacement in Larkspur
Heat exchanger failure is the most serious furnace problem we encounter in Larkspur. A cracked exchanger allows combustion gases into your home’s air stream, and replacement typically runs $1,200–$2,800 depending on furnace age and accessibility. In the hillside ranch homes with original 1960s–70s units, we often find exchangers cracked from decades of thermal cycling. Given Marin’s Title 24 compliance requirements and the age of these systems, full furnace replacement frequently makes more financial sense than exchanger replacement alone. We’ll show you both options with real numbers.

What happens when you call
- 1
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 Larkspur
We service and stock parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Larkspur customers, this means we rarely need to order parts across multiple days. We’ve got common Trane ignitors, Lennox flame sensors, Goodman control boards, and Rheem gas valves on our trucks. When you’re dealing with a January cold snap and your furnace quits at 10 PM, that parts availability translates to faster restoration of heat. Owner-managed, not outsourced.
Common Heating & Furnace Problems We See in Larkspur Homes
- Original gravity furnaces failing with no replacement parts available. In Old Town Larkspur, we regularly encounter 80–110 year-old gravity furnaces or wall heaters where the manufacturer dissolved decades ago. No parts, no schematic, no safe repair path. These homes require full system conversion, usually to ductless mini-splits or high-velocity small-duct systems that can work within the existing structure.
- Salt-air corrosion destroying outdoor heat pump units near Larkspur Landing. The waterfront area around the ferry terminal exposes condenser coils to persistent salt-laden air. Homeowners who install standard slab-mounted units without corrosion-resistant coating often face refrigerant leaks and coil failure within five to seven years. We specify coastal-grade equipment and elevated mounting for these locations.
- Oversized ductwork in 1950s–70s ranch homes creating uneven heating and energy waste. The hillside split-levels and ranches often have original duct systems designed for smaller furnaces or different zoning logic. When we replace with modern high-efficiency equipment, the mismatch produces hot and cold rooms plus higher gas bills. Marin’s Title 24 requirements complicate simple duct modifications, so we calculate proper airflow and often reconfigure runs.
- Failed ignitors and gas valves in aging systems during first cold snap. Larkspur’s mild winters mean many furnaces sit idle from April through October. That first November night below 50°F reveals deferred maintenance. We see a surge of no-heat calls the first week of heating season, often from systems that haven’t been serviced in years.
Pricing for Heating & Furnace in Larkspur, CA
Here’s what furnace service actually costs in Larkspur’s market:
| Service | Price Range |
|---|---|
| Furnace Repair | $175–$825 |
| Furnace Replacement | $3,500–$7,500 |
| Furnace Tune-Up | $95–$235 |
| Heat Exchanger Replacement | $1,200–$2,800 |
What moves you within these ranges? Accessibility matters in Larkspur’s older homes. A furnace in a cramped 1920s basement with a narrow stairway takes longer to extract and replace than a unit in a modern utility room. Duct modifications for Title 24 compliance add material and labor. Brand selection affects equipment cost, though we install everything from Goodman value lines to Trane premium systems. We provide written, itemized estimates before any work begins. Estimates are free. Call (844) 560-6978 to schedule.
We Also Serve Cities Near Larkspur
Our Heating & Furnace team regularly works throughout central Marin. We also serve Corte Madera, Kentfield, Mill Valley, and Tamalpais Valley with the same owner-managed approach and emergency availability. If you’re in a neighboring community and found this page, the same pricing and service standards apply.
Serving Larkspur, CA — Our Local Coverage Area
We’re based in the Larkspur 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 Larkspur
Full replacement is almost always necessary. Original gravity furnace manufacturers from the 1910s–1920s no longer exist, and replacement parts haven’t been manufactured for decades. We convert these homes to ductless mini-split heat pumps or high-velocity small-duct systems that provide heating and cooling without requiring duct chases that would damage historic interiors. Call (844) 560-6978 and we’ll assess your specific layout.
Yes, coastal-grade equipment with corrosion-resistant coating is essential within a half-mile of the waterfront. Standard condenser coils exposed to salt-laden bay air typically fail within five to seven years. We specify elevated mounting brackets and coated coils for Larkspur Landing installations. The modest equipment upcharge prevents a full premature replacement. Call (844) 560-6978 for a quote on coastal-grade specifications.
Yes, Marin County requires permits for all furnace replacements, and Title 24 energy compliance is mandatory. This affects duct sealing standards, insulation requirements, and equipment sizing calculations. We handle permit submission and Title 24 documentation as part of our replacement service. The process typically adds 3–5 business days to project scheduling. Call (844) 560-6978 to discuss timeline and compliance details for your specific property.
Sometimes, but rarely without modification. Original 1960s ductwork in Larkspur’s hillside homes was typically sized for smaller, less efficient furnaces and often lacks proper return air pathways. We test static pressure and airflow before recommending retention. When ducts are retained, we seal and modify per Title 24 requirements. When they’re undersized or leaky, partial or full duct replacement produces better comfort and efficiency. We’ll show you test results and both cost scenarios. Call (844) 560-6978 for an evaluation.
We install and service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Larkspur’s varied housing stock, we often recommend Trane or Lennox for premium efficiency in homes where the system will run frequently, or Goodman and Rheem for reliable value in secondary residences or rental properties. We’ll match equipment to your budget, efficiency goals, and how long you plan to keep the home. Call (844) 560-6978 for brand-specific quotes.
Ready to get your Larkspur home’s heating sorted? Call Crestview Heating & Air California at (844) 560-6978 for a free estimate. Marcus Feldman or a member of our owner-managed team will assess your system, explain your options in plain language, and provide a written quote with no pressure to decide on the spot. We’ve got 19 years of HVAC experience and 250+ customer reviews averaging 4.8 stars backing up every job we do in Larkspur.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving Larkspur and Marin County since 2005.