01 / COOLINGA cooler home,
without the guesswork.
AC repair, tune-ups and installation when your space isn’t cooling the way it should.
Explore AC repair
COMFORTFLOW / HVAC PALO ALTO
HVAC in Palo Alto,
made for every room.
Warm afternoons, cool mornings, and spaces that never feel quite even. ComfortFlow repairs and installs heating, cooling and heat pumps for Palo Alto homes, starting with what you feel.
Call 650-460-3483Local to Palo Alto.
438 Cambridge Ave, 94306
438 Cambridge Ave, 94306
PALO ALTO HOMESCOOLINGHEATINGHEAT PUMPSAIRFLOW
ComfortFlow HVAC Palo Alto is a local heating and air conditioning company at 438 Cambridge Ave. We repair and install air conditioners, furnaces, heat pumps and ductless systems, service Eichler radiant heat, and fix airflow problems in homes across Palo Alto. We handle City of Palo Alto permits and help with CPAU heat pump rebates. Call 650-460-3483.
HVAC in Palo Alto works a little differently
Palo Alto homes span more than a century of building styles, from Professorville’s shingle houses to Old Palo Alto’s 1920s classics and the Eichler tracts of the south side. Many were built long before central air existed, and heating and cooling were added later, often in tight attics and crawlspaces. That history shapes almost every service call we make.
The city itself is different too. Palo Alto runs its own utility, City of Palo Alto Utilities (CPAU), which offers rebates when you replace gas heating with a heat pump. The City also offers an instant permit for qualifying residential heat pumps, with clear rules on noise and placement. And with a mild climate, many systems sit idle for months, then fail on the first hot afternoon of the year.
What we do
- Cooling: AC repair and AC installation, sized with a real load calculation
- Heating: furnace and heating repair and Eichler radiant heating
- Going electric: heat pump installation and ductless mini-splits
- Comfort and air: ductwork and airflow, indoor air quality and seasonal maintenance
- When it can’t wait: urgent HVAC service
How we’re different
We start with what you’re noticing, room by room, then measure before we recommend anything. Repair prices come first. Replacement options only come up when they make sense, with the rebate math laid out. And we respect the house: drop cloths, protected finishes, and careful routing in historic and mid-century homes.
THE WORK WE DO
Care for the systems
behind your comfort.
Sometimes it’s one room. Sometimes it’s the whole system. Start with the service that fits what’s happening at home.
01 / COOLINGA cooler home,
02 / HEATINGWarmth that feels
just right.
Furnace and heat pump repair, heating maintenance, and Eichler radiant systems.
Explore heating repair
03 / AIRFLOWEvery room should
feel like home.
Uneven temperatures, weak airflow and ductwork concerns deserve a closer look.
Explore airflow fixes
04 / SYSTEMSReady for a new
way to feel good?
Heat pumps, ductless options and controls, with CPAU rebate and permit help.
Explore heat pumpsCoolingAC InstallationNew central air or a full replacement, sized with a real load calculation for your Palo Alto home.SystemsDuctless Mini-SplitsRoom-by-room heating and cooling for Eichlers, additions, ADUs and homes without ducts.HeatingEichler Radiant HeatingRepair, diagnose or replace the radiant floor heat in Palo Alto Eichlers, and add cooling without losing the look.CareHVAC MaintenanceSeasonal tune-ups for AC, heat pumps, furnaces and mini-splits. Fewer surprises and longer equipment life.AirflowIndoor Air QualityFiltration for wildfire smoke, fresh-air ventilation, humidity control and cleaner air from the system you already have.CareUrgent HVAC ServiceNo heat on a cold night or no cooling in a heat wave. What to do first, and how to reach us.
A FEELING WORTH COMING HOME TO THE COMFORTFLOW WAY
Comfort is personal.
So is the plan.
Homes have their own rhythms. A room that heats up in the afternoon, a system that works harder than it used to, or a new layout that changes the airflow: each deserves a thoughtful look.
01
Start with your space.
What you’re noticing helps guide the conversation.
02
Make the choices clear.
Understand the practical paths for repair, care, or replacement.
03
Keep daily life in mind.
The right next step should make your home feel easier to live in.
CPAU REBATES & PERMITS
Going electric is easier in Palo Alto.
City of Palo Alto Utilities pays homeowners to replace gas heat with a heat pump, and the City’s instant permit means no plan review wait for qualifying homes. We handle the load calculation, permit and rebate paperwork.
Heat pump installation$2,500CPAU Heat Pump HVAC rebate when replacing a gas heater
$5,000for income-eligible Palo Alto residents
<65 dBAnoise rating required under the City instant permit
90 daysto apply after final inspection
Amounts as published on the City of Palo Alto Rebate Hub. Programs change; we confirm current terms before you commit. Read the full rebate guide.
LOCAL FOCUS
At home in
Palo Alto.
From established homes to newer spaces, ComfortFlow HVAC Palo Alto is built around the everyday heating and cooling questions that come up here. Find us at 438 Cambridge Ave, Palo Alto, CA 94306, or call 650-460-3483.
Also serving nearby:
HOW IT WORKS
From “something feels off”
to comfortable again.
- Tell us what you feelUse the two-step form above or call. A few questions help us come prepared.
- We diagnoseMeasurements, not guesses, on the equipment and the airflow.
- Clear optionsRepair price first. Replacement and rebate math only when it helps.
- Done rightClean work, permits handled, and a system verified before we leave.
GUIDES
Good to know before you decide.
RebatesPalo Alto Heat Pump Rebates: The Complete CPAU GuideWhat CPAU pays when you replace a gas heater with a heat pump, which add-ons stack, and the 90-day deadline people miss.PermitsPalo Alto’s Heat Pump Instant Permit, ExplainedUp to three systems, under 65 dBA, not on the roof or visible from the street. Here is how the City’s instant permit works.EichlersEichler Radiant Heat: Repair, Replace, or Go Ductless?How to tell whether your slab loops are failing, and how to weigh repair, an air-to-water heat pump, or a ductless conversion.CoolingRepair or Replace Your AC? A Palo Alto Homeowner’s GuideAge, refrigerant type, repair cost and Palo Alto’s heat pump rebate all shape the decision. Here’s a simple framework.PermitsWhere Can a Heat Pump Go? Noise and Placement in Palo AltoThe 65 dBA rule, property line setbacks, and practical tips for keeping outdoor units quiet and out of sight.MaintenanceA Seasonal HVAC Maintenance Checklist for Palo Alto HomesWhat to do in spring, summer, fall and winter so your system is ready for heat waves, smoke season and cold mornings.
YOUR NEXT STEP
Let’s make home
feel better.
Tell us what’s happening with your heating or cooling, and we’ll start with the right questions.
GOOD TO KNOW
Questions about
HVAC in Palo Alto?
Simple answers to help you find the next step.
What HVAC services does ComfortFlow offer in Palo Alto?
AC repair and installation, heat pump installation, ductless mini-splits, furnace and heating repair, Eichler radiant heating, ductwork and airflow fixes, indoor air quality upgrades and seasonal maintenance, for homes across Palo Alto.
Where are you located?
Our shop is at 438 Cambridge Ave, Palo Alto, CA 94306, near California Avenue. That puts most Palo Alto neighborhoods within a few minutes’ drive.
How much is the Palo Alto heat pump rebate?
As published on the City of Palo Alto Rebate Hub, City of Palo Alto Utilities offers a $2,500 Heat Pump HVAC rebate, or $5,000 for income-eligible residents, when a heat pump replaces a gas or fossil fuel heater. Add-on rebates cover qualifying panel and wiring work. See our rebate guide.
Do I need a permit to replace HVAC equipment in Palo Alto?
Yes. Qualifying heat pump projects at single-family homes, duplexes and ADUs can use the City’s instant permit, which a C-20 licensed contractor files. We handle permits for the work we do. More in our instant permit guide.
Why do some rooms feel warmer than others?
Sun exposure, closed vents, insulation, ductwork and system performance all play a part. Note which rooms change and when; that helps us narrow down what to check. Most uneven-room problems are airflow problems.
Would a heat pump work for my Palo Alto home?
For most homes, yes. Palo Alto’s mild winters suit heat pumps very well. The right fit depends on your ducts, electrical panel, layout and where the outdoor unit can go under the City’s placement rules.
Can you work on Eichler radiant heating?
Yes. We service radiant boilers and pumps, diagnose slab leaks, and add ductless cooling to Eichlers in Greenmeadow, Fairmeadow and across south Palo Alto. See Eichler radiant heating.
Do you serve cities outside Palo Alto?
Yes: Menlo Park, Atherton, East Palo Alto, Stanford, Mountain View, Los Altos and Los Altos Hills. See service areas.