When a system stops working, the first thing that matters is a clear read on what is actually wrong. The visit starts with a full assessment: airflow, refrigerant charge, coil condition, electrical connections, and how the controls are talking to the equipment. That diagnosis shapes everything that follows, including the price and the scope, and it happens before any repair is quoted. We cover heating and cooling work for homes, multi-unit buildings, and commercial spaces throughout Palo Alto and the surrounding area.
Call (650) 879-8929 to get started.
The range of work is wide. An older ranch home that has never had cooling, a newer construction where one wing never quite reaches the thermostat set point, a property manager handling several units at once, a commercial space where the rooftop unit is struggling through a warm afternoon. These are the situations we work through. We are available every day from 5:30 AM to 8:00 PM. Questions about the equipment get answered before anything is booked.
Pricing and Scope: What Moves a Quote
A price is not a number we pull from a list. It reflects what the fault turns out to be, what has to be accessed to fix it, and whether a repair or a replacement is the better answer given the age and condition of the equipment. Those three things vary from one property to the next, which is why the rate is confirmed on the call after the situation has been discussed, not before.
What changes a quote most often is the difference between a straightforward part swap and a repair that requires working through a duct system to reach the problem, or a diagnostic that reveals the fault is more involved than the symptom suggested. On installation work, the configuration of the existing space, whether there is usable ductwork, and what the new equipment requires all factor in. A written scope is provided on installation jobs so the details are settled before work begins.
Call (650) 879-8929 and describe what the system is doing.
The scope and the price are worked out on that call, and you know what the visit covers before it is booked.
A house where the living room hits the set point and the back bedroom never does is not always a sign that the equipment is failing. The distribution side of the system is where this problem most often lives. Ductwork that was never sized properly for the layout, sections that have come apart in a crawl space, or a blower that is not moving enough air through the system can all produce the same result at the register.
An air handler and blower assessment is part of any visit where uneven airflow is the complaint. The blower moves conditioned air through the duct system, and a motor that is running below capacity, or a fan assembly that has picked up enough buildup to restrict its output, will leave parts of the property underserved regardless of how well the equipment outside is performing.
Palo Alto has a significant stock of mid-century homes, many of them built before central air was standard and before duct design accounted for cooling loads. In those properties, the ductwork was often laid out for heating only, and a cooling system added later has to work against a distribution system that was not designed for it. Duct sealing and duct repair address the leakage, but sometimes the layout itself is the problem and a ductless zone is the cleaner answer for a room that a central system cannot reliably reach.
We will look at the system and tell you what it needs.
A manufacturer's efficiency rating is measured under controlled conditions, and what a system delivers once it is installed and running in an actual property can differ from that number in ways that matter to the energy bill. Duct leakage is the most common reason. Conditioned air that escapes into an attic or crawl space before it reaches the register does not condition the living space, and the equipment runs longer to compensate. The rated output assumes the air gets where it is going.
Coil condition is the other variable that moves efficiency in practice. An evaporator coil that has accumulated buildup restricts airflow across its surface and forces the system to work harder for the same result. Evaporator coil cleaning restores the heat transfer the coil was designed to deliver. On a system that has not been serviced in several seasons, that single step can close a meaningful gap between what the equipment is rated for and what the property is actually experiencing.
Sizing plays into this too. An oversized unit short-cycles, running in brief bursts that never complete a full conditioning cycle, and an undersized one runs continuously without reaching temperature. Both situations show up on the energy bill before they show up anywhere else. Work carried out to code on every job means the installation is done to the standard the equipment requires, not just close enough to function.
When the system does not respond at all, the cause is almost always electrical or mechanical rather than refrigerant-related. A failed capacitor, a contactor that is not closing, a blower motor that has seized, or a control board that is not sending the start signal are the most common findings. The diagnostic visit identifies which component is responsible before any repair is quoted.
Low airflow at the register has several possible sources: a blower motor running below capacity, a filter that has not been changed in too long, an evaporator coil frozen from a refrigerant issue, or ductwork that has separated somewhere in the run. Each requires a different fix, and the visit works through the system from the air handler outward to find where the restriction is.
A heat pump handles both heating and cooling from a single outdoor unit, which makes it a practical fit for this region where mild winters suit how the technology performs. For a home replacing a gas furnace and a separate AC, a ducted heat pump consolidates both into one system. For a property without existing ductwork, a ductless heat pump mini-split installs without tearing into walls. We handle the equipment and the air-side installation. The electrical circuit and disconnect are the electrician's scope, and that boundary is clear in the written scope before the job starts.
Wildfire seasons across the region have made indoor air quality a practical concern rather than an optional upgrade. A standard filter is not rated for fine particulate matter. MERV-13 and higher filtration captures the particle sizes that matter most during smoke events, and the first step is confirming the existing air handler can pull air through a denser filter without straining the blower. Where it can, the media is upgraded. Where it cannot, the options are a filter cabinet addition or a whole-home air scrubber installed in the duct system. Heat pumps, furnaces and mini-splits all within scope for filtration integration.
The Bay Area's marine climate keeps outdoor humidity relatively stable, but indoor conditions can still drift outside the comfortable range, particularly in tightly sealed newer construction or in properties where the HVAC system is running hard during a heat event. A whole-home humidifier or dehumidifier integrates with the air handler and runs as part of the existing system rather than as a standalone unit. The right configuration depends on the current setup, and the visit determines what the equipment can support.
One call is all it takes to get it looked at. Details on each of these are on our services page.
A system that stops working entirely is not a situation to schedule around. We take urgent calls every day from 5:30 AM to 8:00 PM, and the scope is discussed on the phone before anyone is sent out. When a property has no heat or no cooling at all, that gets treated as a priority in how the visit is arranged.
A rental property with tenants in place, or a commercial space that cannot close for the day, requires a different approach than an empty house. The visit details are confirmed before anyone arrives, and the scope is agreed in advance so there are no open questions once the work starts. HVAC service booked around your schedule is not a figure of speech. It means the appointment is set at a time that works for the people who will be there.
Reach out and we will talk through the symptoms.
Palo Alto is the primary focus of this page, and we work across the surrounding communities in Santa Clara County as well. Residential and commercial properties throughout the area are within scope.
Nearby areas we serve include:
If your property is in the area, call (650) 879-8929 and we will confirm coverage when you reach out.
It depends on the system and the symptom. A straightforward fault on a standard system can be identified in under an hour. A more complex problem, or one that requires the system to run through a full cycle before it appears, takes longer. We give you a clearer picture of what to expect when the visit is booked.
Ask what size the new system is being specified at and why. Ask whether the existing ductwork will be assessed as part of the job. Ask whether the quote covers removal of the old equipment. Ask what the written scope includes and what it does not. Those questions will tell you whether the proposal is built around your property or around a standard job.
Often, yes. When you call, we ask about the symptoms: what the system is doing, whether it is making any unusual sounds, how long the problem has been present, and whether anything changed before it started. That conversation helps scope the visit and, in some cases, points toward a likely cause before the diagnostic even begins.
No, and it can cause problems. A forced-air system is designed to move a certain volume of air through the duct system. Closing vents restricts that airflow, which increases static pressure and can strain the blower, reduce efficiency, and in some cases cause the system to freeze up or overheat. If certain rooms are consistently too warm or too cool, that is worth discussing on a call.
Tighter lots and shared walls can affect where an outdoor condenser or heat pump unit is placed, how refrigerant line sets are routed, and whether low-voltage wiring needs to run through finished spaces rather than open construction. None of that changes what the job involves, but it does mean the site conditions matter when the scope is being worked out. That is covered in the assessment before the written scope is issued on installation work, so the details are settled before the job starts.
The first question is whether the existing ductwork, if there is any, is usable for cooling or whether it was laid out only for heating. In many cases the duct system needs sealing, resizing, or extension before a central system will distribute cooling evenly. Where the ductwork is not practical to adapt, a ductless mini-split installation is often the cleaner path: it adds cooling to specific rooms without requiring a full duct retrofit. The visit assesses the property and the options are explained before anything is quoted.
A system that is running but showing signs of strain, one that is past the age where another repair makes financial sense, or a property that has never had cooling and is heading into another summer without it: these are the situations where a call now costs less than a call after the failure.
We are available every day from 5:30 AM to 8:00 PM. System tuned. Airflow balanced. Home comfortable.
Call (650) 879-8929 for a quote on heating and cooling work in Palo Alto.
See our list of local areas. Other towns where we take heating and cooling work: Mountain View, East Palo Alto, Menlo Park.
We handle the full range of heating and cooling work in Palo Alto and across Santa Clara County, from a single-room ductless install to a whole-system replacement on a commercial property. The table below covers every service we offer, who it fits best, and what is worth knowing before you call. If you have questions about a specific job, call us and we will talk through what the work involves before anything is scheduled.
| System Service | What the Service Includes | Best For | What to Keep in Mind |
|---|---|---|---|
| Full System Installation & ReplacementMost Popular |
| Homeowners whose system is aging, repeatedly failing, or unable to keep pace with the home's demands | An oversized unit short-cycles and wears out faster. An undersized one runs constantly. Correct sizing is confirmed before equipment is ordered. |
| Indoor Air Quality & Air Filtration |
| Households dealing with dust, allergens, wildfire smoke, or occupants with respiratory sensitivities | Filtration upgrades are most effective when the air handler and duct system are assessed together. A filter upgrade that strains the blower can reduce airflow across the whole system. |
| Emergency HVAC Service |
| Any household or commercial property where the heating or cooling system has stopped working entirely | We take emergency calls every day from 5:30 AM to 8:00 PM. The scope and the price are discussed on the phone before anyone is sent out. |
Call us at (650) 879-8929 to talk through your system, get a price, and find out what the visit covers before anything is scheduled.
(650) 879-8929