Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateHVAC Company in Palo Alto, CA
Palo Alto HVAC work is different, and it’s the housing stock that makes it so: mid-century Eichlers with radiant slabs, 1950s ranches with undersized ducting, and tightly sealed new builds that need precise, zoned comfort. Homeowners here don’t just need a repair, they need a technician who understands how those systems interact with this climate and these construction methods. Coldharbour Heating & Air handles that, with a price in writing before work begins and a live person on the phone when you call (669) 800-4179. Below is how we approach Palo Alto specifically.
Why Palo Alto Homes Are Different
Palo Alto’s mild climate – warm, dry summers and cool, wet winters – shapes how HVAC systems are used here. Inland neighborhoods like Midtown and College Terrace regularly see 90+°F days in July and August, which means cooling is no longer optional. But the real wildcard is the building stock. Original Eichler and ranch homes from the 1950s and 60s sit on concrete slabs with radiant heating. Many were built with no air conditioning at all, and adding central AC means cutting into slabs or running ductwork through walls that were never designed for it.
Newer construction tells a different story. Remodels and luxury builds across Professorville, Old Palo Alto, and Crescent Park favor high-performance insulation, heat pumps, and zoned mini-split or VRF systems. Tech industry households push for smart thermostats, air purification, and whole-house electrification, while Palo Alto’s reach codes actively steer replacement projects toward heat pumps. That means a service call here can mean working on a 60-year-old gas furnace in the morning and a variable-speed heat pump in the afternoon. We train for both, and we stock parts accordingly.
Styles & brands we work with
Our Main Palo Alto Services
Most Palo Alto homeowners call us for one of three things: a cooling system that quit during a heat wave, a furnace that won’t fire on a cold winter morning, or a full replacement when an old system has reached the end of its life. Each has its own page, so you can get the details you actually need.
AC Repair in Palo Alto
When it’s 94°F in Midtown and your AC dies, you want a technician who knows Palo Alto’s mix of older split systems and newer heat pumps. We diagnose the problem, hand you a written price before any work starts, and carry common parts – capacitors, contactors, fan motors, thermostats – in the truck. If the repair fails within 365 days, we come back and make it right at no charge. That’s a written guarantee, not a handshake. Full details are on the AC Repair in Palo Alto page.
Furnace Repair in Palo Alto
Palo Alto winters don’t get bitter cold, but a dead furnace in a 1950s ranch with original ductwork still makes for an uncomfortable January night. We work on gas furnaces, electric furnaces, and the radiant systems common in Eichlers – diagnosing whether the issue is the igniter, a safety switch, or something deeper. You get an upfront price, a firm arrival window, and a repair covered in writing for a full year. See what’s involved on the Furnace Repair in Palo Alto page.
AC Installation in Palo Alto
Replacing an AC system in Palo Alto carries extra considerations: some homes need ductless mini-splits because the slab construction makes conventional ducting impractical, while others benefit from a zoned heat pump that aligns with the city’s electrification goals. We provide a fixed written quote, schedule a set install date, and walk you through any rebates or financing paperwork. The AC Installation in Palo Alto page covers the process and what to expect.
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.
Brands We Service in Palo Alto
We arrive ready to work on whatever system is already in your home. Our technicians are trained on nine major residential brands, including Carrier, Trane, Lennox, and Goodman. We carry a range of Trane, Lennox, and Rheem parts in the truck for faster turnarounds, and our supplier network covers the rest. You can see the full lineup on our brands page.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Palo Alto, CA
| Service | Typical range in Palo Alto |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
| Furnace Igniter Replacement | $150 – $280 |
| Refrigerant Recharge | $200 – $400 |
| Thermostat Replacement | $150 – $350 |
| Capacitor Replacement | $150 – $300 |
| Condensate Drain Line Clearing | $120 – $250 |
| Heat Pump Repair | $150 – $650 |
What pushes a Palo Alto job toward the upper end of those ranges? Older homes with unconventional access – a furnace in a tight crawlspace, an AC condensing unit squeezed into a narrow side yard – take longer to work on, and specialty parts for aging systems cost more to source. Regardless of where your job lands, you’ll know the exact price before we pick up a tool. The written quote does not change at the door.
Neighborhoods We Serve in Palo Alto
We work across all of Palo Alto, from the tree-lined streets of Old Palo Alto to Eichler-heavy tracts in Greenmeadow. Here are a few of the neighborhoods we’re in most often:
- Midtown
- College Terrace
- Professorville
- Greenmeadow
- Crescent Park
For most Palo Alto jobs, we can have a technician at your door within a few hours of your call, depending on the day and the season.
Service Area – Cities Near Palo Alto
In addition to Palo Alto, we serve several nearby communities across this part of the Peninsula. You can learn more about our work in Stanford, CA, Menlo Park, CA, Los Altos, CA, and Redwood City, CA. If you’re just outside the city and aren’t sure, call us and we’ll tell you straight.
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 About HVAC Company in Palo Alto
Most Palo Alto calls are answered by a live person immediately, and a technician can typically reach homes in Palo Alto within a few hours. During heat waves, that window can stretch, but you’ll always get a firm arrival window when you book, not a vague “sometime today.”
Many HVAC replacements in Palo Alto require a permit, especially when the job involves new equipment, electrical work, or changes to the building envelope. We handle the permit paperwork as part of the installation and make sure the work meets the city’s current reach codes. Repairs typically do not require permits.
Yes. We’re familiar with the radiant slab systems common in Palo Alto’s Eichler and ranch homes, including the original copper and iron piping and the boilers that drive them. Some radiant problems are simple fixes; others require rerouting or supplementing with a mini-split. We’ll tell you which you’re dealing with before any work starts.
Coldharbour Heating & Air is an independently owned and operated part of the Kingswell network, founded in 2003. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and our crews work locally in Palo Alto every day. You’re getting a technician who knows these streets and these houses.
If your AC or furnace is acting up in Palo Alto, call (669) 800-4179. You’ll talk to a person, get a straight answer, and receive a written price before any work begins. Estimates are free, and every repair carries our 365-Day Done Right Promise. If it fails inside a year, we return and fix it at no charge.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Palo Alto Customers Say
"Our upstairs never cooled right. He found the duct run was half blocked and the system low on charge, fixed both, and now the whole house is even. Explained every step."
- Deanna Boleyn"New AC and furnace. They gave me a written quote with a couple of options and no pressure. Showed up on the day they promised and the new system is so much quieter."
- Gloria Dunn"New mini split for the addition. Clean install, on time two days running, and the price matched the written quote to the dollar."
- Yvonne Prewitt