When a system stops cooling on a warm afternoon or a furnace fails to fire on a cold morning, the call that matters is the one that gets a price on the phone and a visit on the schedule. We handle heating and cooling for homes, rental properties, and commercial spaces across San Leandro, from a single-room ductless install to a full system replacement. Heating and cooling work gets explained in plain terms: the scope is discussed on the call, the price is confirmed before anything is booked, and the system is tested before the visit ends.
Call (650) 879-8929 to get started.
San Leandro is a city with a varied housing stock, ranging from postwar single-family homes to multi-unit buildings and light commercial properties. Older construction often means original equipment that has not been serviced in years, ductwork that does not reach an addition, or a heating system that was never paired with any cooling at all. We work through all of it. Whether the call comes from a homeowner dealing with a system that has been struggling for two seasons or a property manager handling a repair across several units, the process is the same: scope the problem, confirm the price, schedule the visit.
HVAC pricing is not a flat number, and a quote that does not account for the actual system is not a useful one. When you call, the situation gets discussed in enough detail to give you a real figure before anything is scheduled. What the fault turns out to be, how accessible the equipment is, and whether a repair or a replacement is the better answer are the things that move it.
A repair call that involves a failed capacitor is a different job from one involving a refrigerant leak that has been running for months and has damaged the compressor. A furnace repair on a system with a clear ignition fault is straightforward. The same symptom on a system with a cracked heat exchanger is a different conversation. The diagnostic determines which it is, and the repair scope is agreed before work begins.
On installation work, a written scope is provided before the job starts. That covers what is being installed, what the visit includes, and what falls outside our scope. The household electrical circuit and disconnect on a new heat pump, for instance, belong to an electrician. We speak to the equipment and the air-side installation. Ask what is covered and you get a straight answer.
Wildfire smoke carries fine particulate matter that a standard filter is not rated to stop. A MERV-13 or higher-rated filter captures the particle sizes that pass through a MERV-8, and the difference is measurable when smoke from inland fires reaches the Bay Area. Not every air handler can pull air through a denser filter without straining the blower, so the visit starts with a compatibility check before any upgrade is recommended. Where the existing equipment supports it, we upgrade the filtration media. Where it does not, we walk through the alternatives, including whole-home air scrubbers and UV filtration systems that work alongside the existing setup.
Humidity control is less visible than filtration but affects comfort in ways that temperature alone does not address. A space that feels clammy even when the thermostat is satisfied, or one where dry air causes problems in winter, is often a candidate for a humidifier or dehumidifier installed in the duct system. These work with the existing air handler rather than replacing it, and they are sized to the space rather than selected from a shelf. The visit covers what the space needs and what the current system can support.
A system that has been running without maintenance for several seasons does not always fail all at once. It degrades: efficiency drops, components wear toward the edge of their tolerance, and a repair that would have been minor two years ago becomes a larger job. On a property where the equipment has not been serviced recently, the diagnostic covers the full system rather than just the presenting fault. That way the repair addresses what is actually wrong rather than the most obvious symptom.
Tight attic clearances, equipment installed in a crawl space, or a rooftop unit on a commercial building all affect how a job is approached. None of those are reasons to decline the work, but they are factors that come up on the call so the visit is scoped correctly. A property where the air handler is in a low attic above a finished ceiling takes longer to work on than one with a utility room and a standard install. That gets reflected in the scope, not discovered after the fact.
A burning smell at startup is often dust burning off coils or a heat exchanger that has not been run in months. It can also be an electrical component that is failing. A musty smell points toward biological growth in the evaporator coil or the drain pan, which happens when condensate does not drain properly and moisture sits in the system. Both are worth diagnosing rather than waiting out. The smell is the system telling you something, and the diagnostic identifies what.
A home or commercial space where one area is always too warm and another is always too cool is a candidate for zoning. A zoned system uses dampers in the ductwork and separate thermostats for different areas, so the system can condition one part of the building without over-conditioning another. Smart thermostat and programmable control upgrades work alongside zoning to give more precise control over how the system behaves throughout the day. We handle the equipment and the low-voltage control wiring.
When repair costs are stacking up or a system is past the point where another fix makes economic sense, replacement is the more practical path. A replacement starts with sizing the new equipment to the actual load of the space, because a system that is too large short-cycles and one that is too small runs constantly without reaching temperature. The scope covers the equipment, the installation, and what happens to the existing system. A written scope is provided before the job starts.
An addition that was built without extending the duct system is a common situation in older San Leandro homes. The existing system was sized for the original footprint, and the new space either gets no conditioning at all or pulls so hard on the existing ducts that the whole house suffers. The fix depends on the addition's size and how the existing ductwork is configured. In some cases, extending the ducts is the right answer. In others, a ductless mini-split for the addition is cleaner and avoids disturbing the existing system entirely.
A heat pump handles both heating and cooling in a single system, which makes it a practical replacement for a home that currently has separate equipment for each. In this region's mild climate, heat pumps perform well through the heating season without the efficiency losses that colder climates introduce. Ducted heat pumps connect to an existing forced-air system. Ductless heat pump mini-splits work without existing ductwork and suit additions, older homes, or properties where running new ducts is not practical. We handle the equipment and the air-side installation. If you want to see the whole range first, try our services page.
HVAC service booked around your schedule means the visit happens when it works for the property, not just when the calendar has an opening. For rental properties, that includes working around a tenant's availability. For commercial spaces that need to stay open, it means scoping the work in a way that minimizes disruption to the business operating inside.
Emergency calls are handled every day from 5:30 AM to 8:00 PM. A property with no heat or no cooling gets the same response as any other call: the situation is scoped on the phone, the price is discussed, and a visit is arranged as quickly as the schedule allows. We do not promise an arrival window on this page, because the schedule depends on what is already booked. What we can tell you is that urgent calls are taken seriously and that a system-down situation is not treated as a routine maintenance request.
For properties where the system cannot be fully resolved in a single visit, the scope of what was done and what remains is confirmed before the technician leaves. One call is all it takes to get it looked at.
We work across San Leandro and the surrounding communities in Alameda County. Residential and commercial properties throughout the area are within scope.
Nearby areas covered include:
If your property is in the area, call (650) 879-8929 and we will confirm coverage when you reach out.
A system that sits idle for an extended period benefits from a check before it is put back into regular use. Dust accumulation, pest activity in the ductwork, and refrigerant changes that occur over time can all affect performance after a long idle period. A maintenance visit before the season starts is the straightforward way to confirm the system is ready.
Older construction tends to produce a specific set of calls: systems that have never been paired with cooling, ductwork that does not reach a room addition, and equipment that has been running without maintenance long enough that a single fault reveals others underneath it. None of that makes the work harder to schedule, but it does mean the diagnostic covers more ground than a call on newer construction. The scope reflects what the system actually needs, not what a newer install would require.
In most cases, yes. The system will be offline during the installation, so there will be a period without heating or cooling. The length of that window depends on the job, and we discuss it with you when the scope is agreed. Tenants should be notified in advance so they can plan accordingly.
Yes. We cover San Leandro and the surrounding communities, including Castro Valley, San Lorenzo, Ashland, Cherryland, and Oakland.
If the property is in that part of Alameda County, call (650) 879-8929 and we will confirm when you reach out.
A system that has been struggling for months does not get better on its own. The noise that started last spring, the room that stopped reaching temperature, the filter that has not been changed in longer than anyone can remember: these are the things a diagnostic visit surfaces and addresses. We are available every day from 5:30 AM to 8:00 PM.
Call (650) 879-8929 and get the scope on the phone before anything is scheduled.
Everywhere else we go is in our list of local areas. Nearby, we also cover: Castro Valley, Alameda, Union City, Foster City, Berkeley.
We handle the full range of heating and cooling work in San Leandro and across Alameda 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. |
| Heating & Furnace Repair |
| Households where the furnace is not igniting, cycling off early, or producing less heat than expected | Fall is the busiest window for furnace calls. Scheduling before the first cold stretch means shorter waits and a system ready when temperatures drop. |
| Wildfire-Smoke Air Filtration (MERV-13+) |
| Bay Area households with respiratory concerns or homes that experienced smoke infiltration during fire events | Not every air handler can pull air through a denser filter without straining the blower. We check compatibility before upgrading the filtration media. |
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