Fast, Reliable Emergency & Commercial HVAC Across San Anselmo
When your commercial HVAC system fails on a 90°F afternoon in the Ross Valley, or a winter storm rips components off your rooftop unit, you need a team that knows San Anselmo’s specific building stock and climate pressures. We’re Crestview Heating & Air California, and our Emergency & Commercial HVAC team has been responding to calls in the 94960 and 94979 ZIP codes for nearly two decades. Owner Marcus Feldman still manages jobs in the field, so the accountability you expect from ownership is present on every San Anselmo service call. Call (844) 560-6978 for emergency response or to schedule a free estimate.
Why Crestview Heating & Air California Is San Anselmo’s Preferred Emergency & Commercial HVAC Company
Our 4.8-star average across 250+ customer reviews reflects consistent real-world performance, and San Anselmo property managers have been among those leaving feedback since we expanded our Marin service area. We’ve earned that rating by showing up personally, not dispatching anonymous subcontractors.
Marcus Feldman serves as both Owner and Service Manager, which means ownership-level accountability is built into daily operations. When you call about a failing rooftop unit on Sir Francis Drake Boulevard or an emergency heating loss near San Anselmo Creek, Marcus or a technician he directly oversees will handle the diagnosis.
Our familiarity with San Anselmo’s pre-1940 building stock saves time on every call. Victorian cottages and Craftsman bungalows with balloon framing and original plaster walls present access challenges that technicians from outside Marin often underestimate. We’ve worked in these homes and commercial conversions enough to know where equipment can realistically go.
Response time to San Anselmo from our San Jose base typically falls within our standard Marin County window, and our emergency line prioritizes calls from commercial properties with active tenant complaints or equipment exposing the building to further damage.
Our Emergency & Commercial HVAC Services in San Anselmo
24/7 Emergency HVAC
Emergency HVAC failures in San Anselmo don’t follow business hours. The Ross Valley’s bowl geography traps summer heat that pushes older systems past their limits, while winter atmospheric rivers bring wind gusts exceeding 50 mph that damage rooftop equipment and cause power surges. Our emergency line connects you directly to a decision-maker who can dispatch repair parts for Carrier, Trane, Lennox, Goodman, Rheem, and the other major brands we service. During a December atmospheric river, our crew responded to a 24/7 emergency call at a commercial building on Sir Francis Drake Boulevard near San Anselmo Creek. The storm had ripped the wind-rated curb adapter off a Trane rooftop unit, leaving the duct opening exposed. We secured a replacement curb adapter from our van stock, reinforced it with additional storm-rated fasteners, and resealed the duct connection before water damage could spread. The building owner had ignored our pre-storm reinforcement recommendation; this time they didn’t.

Commercial HVAC
San Anselmo’s commercial core along San Anselmo Avenue and the mixed-use properties on Sir Francis Drake corridor rely on systems sized for spaces that were never originally designed for mechanical cooling. We’ve retrofitted ductless solutions for historic commercial buildings and maintained centralized systems for newer developments in the Sleepy Hollow area. Our 19 years of experience means we’ve encountered virtually every system type, age, and brand a San Anselmo property manager could own. From emergency calls to commercial buildouts, your system is our specialty.

Rooftop Unit Service & Storm Reinforcement
Rooftop units in San Anselmo face a specific threat profile that bayside towns don’t share. The funneling effect of the Ross Valley accelerates winter storm winds, and we’ve seen curb adapters, access panels, and exhaust hoods fail under loads that standard installations weren’t designed to withstand. We inspect and reinforce curb mounting, duct seals, and structural connections with hardware rated for the wind exposure this valley creates. Pre-storm reinforcement inspections for San Anselmo commercial properties are available and recommended before each winter season.

Chiller Service
Commercial properties in San Anselmo with larger cooling loads, including some medical and professional buildings near the downtown core, depend on chillers that can’t afford downtime during heat events. Our technicians service and repair chiller systems with the same factory-trained approach we apply to smaller equipment. When a chiller fails during one of San Anselmo’s occasional multi-day heat events, the interior temperature rise threatens both occupant safety and sensitive equipment. We maintain relationships with parts suppliers that let us source components for major chiller brands without the delays that can turn a same-day repair into a week-long ordeal.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Anselmo
Your system, our specialty. We stock common repair parts and consumables for Trane, Lennox, Goodman, and Rheem units specifically, and our factory training extends across nine major brands total. For San Anselmo customers, this means faster turnaround on repairs and no conversation where we tell you “we don’t work on that.” Our vans carry capacitors, contactors, motors, and control boards for the brands most commonly installed in Marin County commercial properties, and our supplier relationships let us source same-day or next-day components for less common equipment. Whether your building runs a 15-year-old Lennox rooftop unit or a newer Rheem chiller, we’ve likely serviced its exact model before.
Common Emergency & Commercial HVAC Problems We See in San Anselmo Homes
- Wind-driven rain infiltration through compromised rooftop unit curbs. San Anselmo’s winter storms funnel through the Ross Valley at speeds that test standard curb seals. Once water enters the duct system, it damages insulation, promotes microbial growth, and can collapse ceiling tiles before the leak is even visible inside.
- Emergency system failure from storm-related power surges. The same grid instability that accompanies Marin County winter storms fries control boards and compressors. We install surge protection and recommend it for every commercial emergency HVAC system in storm-exposed locations.
- Flood damage to ground-level equipment in crawlspaces near San Anselmo Creek. The 1982 and 2005 flood events inundated ground-level spaces across the downtown and lower Sir Francis Drake corridor. We relocate or elevate furnaces and air handlers when possible, and specify wall-hung or closet-mounted alternatives for flood-vulnerable properties.
- Inadequate cooling in converted pre-1940 commercial spaces. San Anselmo’s historic building stock wasn’t designed for duct chases, and many commercial conversions still rely on window units or undersized split systems. We design ductless mini-split and high-velocity solutions that cool effectively without destroying original plaster and trim.
Pricing for Emergency & Commercial HVAC in San Anselmo, CA
Honest pricing starts with actual numbers. Here’s what typical Emergency & Commercial HVAC work runs in the San Anselmo market:
| Service | Typical Range in San Anselmo |
|---|---|
| AC Repair | $150–$650 |
| Furnace Repair | $150–$700 |
| Tune-Up | $80–$200 |
Emergency calls outside standard hours may carry an additional trip charge, which we’ll quote upfront when you call. Commercial rooftop unit repairs and storm damage reinforcement vary with accessibility and the extent of wind or water damage, but we provide written estimates before beginning work. Factors that push costs higher in San Anselmo specifically include limited attic access in pre-1940 buildings, the need for specialized storm-rated fasteners and seals, and flood-mitigation measures for properties near San Anselmo Creek. Call (844) 560-6978 for an exact quote — estimates are free.
We Also Serve Cities Near San Anselmo
Our Emergency & Commercial HVAC service radius covers the full Ross Valley and surrounding Marin communities. We regularly respond to calls in Fairfax, Kentfield, San Rafael, and Larkspur — often on the same day we service San Anselmo properties. The building stock, climate pressures, and storm exposure patterns in these neighboring towns are similar enough that our local expertise transfers directly, and our parts inventory and supplier relationships support fast turnaround across the entire corridor.
Serving San Anselmo, CA — Our Local Coverage Area
We’re based in the San Anselmo 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 — Emergency & Commercial HVAC in San Anselmo
Yes, commercial rooftop units in San Anselmo should be installed with wind-load considerations that exceed standard Marin County assumptions. The Ross Valley’s funnel geometry produces gusts that sheltered bayside towns don’t experience, and we’ve replaced too many curb adapters and access panels after storms to recommend anything less than storm-rated fasteners and reinforced seals. Call (844) 560-6978 to schedule a pre-season reinforcement inspection.
We prioritize storm-damage calls from San Anselmo commercial properties based on severity, with active water infiltration or complete system failure receiving same-day response when possible. Our emergency line connects directly to Marcus Feldman or a senior technician who can assess urgency and dispatch with appropriate parts. Call (844) 560-6978 — we’ll give you a realistic arrival window based on current call volume and your specific situation.
Shut the system down immediately to prevent water ingestion and call for emergency service. Do not attempt to inspect or tarp a damaged rooftop unit yourself — the combination of wet surfaces, wind exposure, and electrical components creates genuine fall and shock hazards that require trained technicians with proper safety equipment. Our crew carries replacement curb adapters and storm-rated reinforcement hardware on every emergency vehicle.
Yes, and we specifically recommend wall-hung or elevated-closet installations for flood-vulnerable properties in the downtown and lower Sir Francis Drake corridor. The 1982 and 2005 flood events demonstrated that ground-level crawlspaces near San Anselmo Creek are unsuitable for furnaces or air handlers regardless of standard layout conventions. We’ll evaluate your specific property’s flood history and elevation to recommend equipment placement that protects your investment. Call (844) 560-6978 for a site assessment.
Pre-1940 buildings in San Anselmo present two storm-related concerns: structural anchoring for rooftop equipment on older roofs not designed for modern unit weights, and the limited interior access for ductwork that often forces more exterior penetrations vulnerable to wind-driven rain. We assess roof structure, equipment anchoring, and penetration sealing as part of every commercial installation or major repair in San Anselmo’s historic core. The reinforcement approach differs building by building, which is why we start with a thorough site visit rather than a phone quote.
When your San Anselmo commercial property needs emergency HVAC response, storm-damage repair, or a system designed for the specific pressures this Ross Valley town creates, we’re ready. Owner-managed, not outsourced. Nearly two decades of HVAC experience. 250+ customers who left reviews agree. Call Crestview Heating & Air California at (844) 560-6978 for a free estimate or immediate emergency service.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving San Anselmo and the greater Bay Area since 2006.