Fast, Reliable Emergency & Commercial HVAC Across Palo Alto
When your boiler won’t stop running at 11 p.m. or your rooftop unit dies during a downtown Palo Alto heatwave, you need a technician who knows this city’s buildings, not a dispatcher reading from a script. Redwood Heating & Air reaches Palo Alto from our base of operations with emergency response capability for both residential and commercial calls. We’ve spent 13 years handling the specific HVAC crises that repeat in this market: corroding Eichler slab pipes, salt-eaten coastal condensers, and hillside equipment swaps that require crane logistics. Call (844) 875-9451 and we’ll talk through what’s happening now.
Why Redwood Heating & Air San Diego Is Palo Alto’s Preferred Emergency & Commercial HVAC Company
Gregory Hahn founded this company and still leads every technical decision. That matters in Palo Alto because the HVAC problems here aren’t generic. A master technician who has diagnosed failures across Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard can tell in minutes whether your Eichler’s wet slab is a failed radiant loop or a simpler issue, and won’t sell you equipment you don’t need.
Our 428 verified reviews averaging 4.6 stars include Palo Alto homeowners and commercial property managers who specifically mention that we diagnosed right the first time. One review from a Barron Park Eichler owner noted we “knew the permit package before I asked.” That’s what 13 years of local repetition looks like.
We’re familiar with the response geography: flatland zips 94301 and 94303 near the Bay, the Eichler clusters in Fairmeadow and Green Gables, and the hillside access challenges of 94304. We know which calls need a standard van and which need crane coordination.
Our Emergency & Commercial HVAC Services in Palo Alto
24/7 Emergency HVAC
Emergency calls in Palo Alto follow patterns we’ve seen dozens of times. January nights bring Eichler owners discovering warm wet spots on concrete slabs, the boiler cycling endlessly as copper radiant pipes leak into the foundation. Summer afternoons in 94301 and 94303 fry salt-corroded condenser coils when the marine layer finally burns off. Our Emergency & Commercial HVAC team carries the diagnostic tools and common parts to handle both scenarios without a return trip. We’re available for urgent residential and commercial breakdowns because a dead chiller at a downtown Palo Alto office building and a failed slab heater in Professorville are both emergencies to the people inside.
Commercial HVAC
Palo Alto’s commercial base runs from legacy low-rise buildings on University Avenue to tech campus satellite offices and medical suites. Many of these systems are aging packaged units or split systems that weren’t designed for today’s occupancy loads. We service and repair commercial equipment from the nine major brands we carry, and we understand the permitting rhythm at 285 Hamilton Ave for commercial changeouts. Our approach is brand-agnostic diagnosis first, replacement second. A 13-year track record outlasts most local HVAC startups and one-truck operations for a reason.
Rooftop Unit Service
Flat-roof commercial buildings in Palo Alto, particularly in the 94301 corridor and near California Avenue, often rely on rooftop units that take direct salt-air exposure. The marine layer deposits chloride residue that accelerates coil corrosion and electrical contact degradation. We inspect RTUs for this specific failure mode, not just generic wear. When replacement is necessary, we coordinate crane access for buildings with limited roof loading or tight parking constraints, which is more common in Palo Alto’s older commercial stock than in newer suburban developments.
Chiller Service
Larger commercial and institutional buildings in Palo Alto, including some medical and research facilities, depend on chilled-water systems. Chiller failures don’t offer the luxury of waiting. Our emergency response includes chiller diagnosis, refrigerant recovery, and temporary cooling coordination while we source replacement components. The complexity of these systems is exactly why Gregory Hahn’s master-technician involvement matters; we don’t delegate critical commercial decisions to junior techs.
HVAC Inspection
For commercial property managers and homeowners alike, our inspections identify the failure patterns that are predictable in Palo Alto’s specific environment. We check coastal condensers for salt corrosion, Eichler slab systems for pressure-drop anomalies that precede leaks, and hillside ductwork for seismic displacement. An inspection from someone who hasn’t worked here repeatedly will miss these local tells.
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 Palo Alto
We service your brand, whatever it is. Our technicians carry field experience with Trane, Lennox, Goodman, and Rheem among the nine major lines we support, and we maintain relationships with regional distributors that let us source parts quickly for Palo Alto customers. That matters when a Trane Voyager rooftop unit needs a specific control board or a Rheem chiller requires a proprietary compressor module. We don’t push you toward equipment that matches our inventory. We fix what you have, and when replacement makes sense, we recommend based on your building’s needs, not our supplier rebates.
Common Emergency & Commercial HVAC Problems We See in Palo Alto Homes
- Eichler radiant-slab leaks. Copper pipes embedded in concrete since the 1950s and 60s are now corroding through in neighborhoods like Barron Park and Fairmeadow. The first sign is often a warm wet spot on the floor or a boiler that runs continuously. Because there’s no attic and no existing ductwork, the fix is almost always an emergency mini-split conversion.
- Salt-air condenser failure. Outdoor AC units in flatland zips 94301 and 94303 sit close enough to the Bay that chloride corrosion eats coils and electrical connections years faster than inland. We see sudden compressor failures during heat waves that were actually years in the making.
- Hillside access emergencies. Homes in 94304 Palo Alto Hills have equipment that can only be reached by crane or long lineset runs. When an AC dies on a Diablo-wind day with temperatures 8–12°F above the flatlands, the emergency response requires logistics, not just a van.
- Pre-WWII system limits. Older homes in Old Palo Alto and Professorville often have pier-and-beam construction with accessible crawl spaces, which is good for duct retrofits, but their original heating systems are now 80+ years old and failing during cold snaps.
Pricing for Emergency & Commercial HVAC in Palo Alto, CA
We believe in upfront pricing. Here’s what typical Emergency & Commercial HVAC work runs in Palo Alto’s market:
| Service | Typical Range in Palo Alto |
|---|---|
| AC Repair | $150–$650 |
| Furnace Repair | $150–$700 |
| AC Installation | $3,500–$7,500 |
| Tune-Up | $80–$200 |
Emergency calls outside standard hours may carry additional trip charges, which we’ll quote before dispatch. Eichler slab-to-mini-split conversions typically fall in the installation range but can run higher depending on the number of zones and the complexity of lineset routing. Hillside crane work in 94304 is priced case-by-case. We never start work without a written estimate you approve. Call (844) 875-9451 for an exact quote; estimates are free.
We Also Serve Cities Near Palo Alto
Our emergency and commercial coverage extends throughout the mid-Peninsula. We regularly respond to Stanford campus buildings, East Palo Alto commercial properties, Atherton estate HVAC systems, and Los Altos Hills hillside installations. The same master-technician standards and brand-agnostic diagnosis apply whether we’re working on a Stanford research facility chiller or an Atherton home’s multi-zone system.
Serving Palo Alto, CA — Our Local Coverage Area
We’re based in the Palo Alto 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 Palo Alto
Eichler homes were built with copper radiant-heat pipes embedded directly in concrete slabs, and after 60+ years that copper is corroding through across neighborhoods like Barron Park, Fairmeadow, and Green Gables. Because these homes have flat roofs with no attic space and open floor plans that offer nowhere to run ductwork, a failed slab system can’t be patched with conventional forced-air replacement. The emergency conversion to ductless mini-splits is the only viable path, and it’s a workflow we’ve performed repeatedly. Call (844) 875-9451 if you’re seeing warm wet spots or a boiler that won’t cycle off; we’ll assess whether it’s the slab or something simpler.
Expect a technician on-site who can diagnose across nine major commercial brands and source parts without waiting for a single-brand distributor. Downtown Palo Alto commercial buildings often have aging packaged units or split systems that have been salt-exposed for years; we’ll identify whether it’s a failed compressor, corroded coil, or control issue, and we’ll quote repair versus replacement honestly. For after-hours emergencies, call (844) 875-9451; we prioritize commercial cooling failures during occupied hours.
The marine layer deposits chloride-rich moisture on outdoor coils and electrical components, particularly in flatland zips 94301 and 94303, accelerating corrosion that leads to sudden failures during heat waves. Rooftop units and ground-level condensers both suffer; we inspect for this specific pattern and can recommend protective coatings or more frequent maintenance intervals than inland buildings require. The cost of prevention is almost always lower than emergency replacement.
Yes, any HVAC replacement in Palo Alto requires a permit from the building division at 285 Hamilton Ave, but experienced contractors know the exact documentation package for Eichler mini-split conversions. We prepare permit-ready drawings and load calculations as part of our standard workflow, and the local desk is familiar with this specific conversion type. The permit process doesn’t have to delay your emergency repair; we coordinate it while the equipment is on order. Call (844) 875-9451 and we’ll walk you through the timeline.
Yes, we respond to 94304 hillside calls on Diablo-wind days, though the repair may require crane coordination for equipment access that a standard van can’t reach. These days run 8–12°F hotter than the flatlands, so the urgency is real. We’ll assess whether it’s a quick electrical fix we can handle immediately or a replacement requiring logistics planning, and we’ll be straight about the timeline. Call (844) 875-9451; we know the access challenges in the hills and plan for them.
Contact Redwood Heating & Air for Emergency & Commercial HVAC in Palo Alto
Whether you’re watching a wet spot spread across an Eichler slab in Fairmeadow, sweating through a dead rooftop unit downtown, or facing a hillside AC failure on the hottest day of the year, we respond with the technical depth this market demands. Gregory Hahn’s master-technician involvement means your diagnosis comes from 13 years of seeing exactly these failures, not from a training manual. From a single mini-split to a full commercial system, we handle it. Call (844) 875-9451 for a free estimate.
Written by Gregory Hahn, Owner at Redwood Heating & Air, serving Palo Alto since 2012.