Some calls are straightforward: the system has stopped, the house is not comfortable, and the situation cannot wait. Other calls are harder to place. The air conditioner runs all afternoon but the rooms never cool down. The furnace cycles on and off but the temperature barely moves. Both of those are real problems, and we take both. Whether the equipment has quit entirely or is simply not doing what it should, the answer starts the same way: a proper diagnosis before anything is quoted or scheduled.
Sonoma is a small town with a mix of older homes, wine-country properties, and a handful of commercial spaces that all rely on heating and cooling equipment that does not always get the attention it needs. We handle the full range of that work, from a single-room ductless install to a full system replacement, for property owners and businesses across town and the surrounding area. We are available every day from 7:30 AM to 10:00 PM.
Call (707) 892-4623 to get a quote.
Ductwork problems are easy to overlook because the ducts themselves are out of sight. But a duct system that is leaking, poorly routed, or undersized for the space it serves is one of the most common reasons a heating or cooling system underperforms despite running constantly. Conditioned air that escapes into an attic or wall cavity before it reaches the room it was meant for is wasted capacity, and it shows up in both comfort and energy bills.
The good news is that most duct problems can be addressed without tearing into walls or ceilings. We inspect the accessible duct runs, identify where air is escaping, and seal or repair the sections that are losing the most. For homes with additions where the original duct system was never extended properly, we can design and install the additional runs the space actually needs. The result is a system that moves the air where it is supposed to go rather than losing it somewhere in between.
A tune-up is not a filter swap and a signature on a form. It is a systematic check of the components that fail gradually and quietly, the ones that do not announce themselves until the system stops on the coldest night of the year or the first real heat stretch of summer.
A pre-season cooling check covers the refrigerant charge, the coil condition, the condensate drain, the electrical connections at the unit, and the airflow through the system. A heating check before the colder months covers the ignition components, the heat exchanger, the burner operation, and the filter condition. What both visits share is the goal of finding what is starting to wear before it becomes an emergency call. For landlords managing rental properties in Sonoma, scheduled maintenance is also a practical way to stay ahead of tenant calls and keep equipment running through its full service life.
HVAC pricing is not a flat number, and any quote that comes before a diagnosis is not a real quote. What the fault turns out to be, what has to be reached to fix it, and whether a repair or a replacement is the smarter answer for that particular system are the things that move the number. A refrigerant leak that is accessible at the outdoor unit is a different job from one that requires pulling the air handler. A heat pump that needs a reversing valve is a different scope from one that needs a capacitor.
When you call, we talk through what the system is doing, what kind of equipment is involved, and what the visit will cover. The repair or install scope is priced before the work starts, so you know what you are agreeing to before anyone comes out. If the diagnostic finds something that changes the scope, we explain what was found and confirm the updated price before any additional work is authorized. Nothing is added without your knowledge.
Call (707) 892-4623 and we will walk through what applies to your situation.
When a room is added to a home, the existing duct system is often not extended to reach it, or it is extended in a way that robs airflow from the rooms it already served. A room that never gets comfortable despite the system running is frequently a duct design problem rather than an equipment problem. We assess the existing system capacity and design the additional runs to balance airflow across the whole house rather than just reaching the new space.
An air conditioner that runs all day without bringing the temperature down is one of the more frustrating calls because the equipment appears to be working. The causes are specific: a refrigerant leak that has left the system undercharged, a coil that is too dirty to transfer heat, a compressor that is running but not building pressure, or an airflow restriction that is preventing the system from shedding heat at the outdoor unit. Refrigerant leak diagnosis is part of the standard diagnostic, not an add-on. We work through the possibilities in order and confirm the cause before quoting the repair.
A heat pump handles both heating and cooling from a single outdoor unit, which makes it a practical replacement for a home that currently has separate systems or an aging gas furnace. In this region, where winters are mild enough that a heat pump operates efficiently through most of the heating season, the case for electrification is straightforward. For homes with existing ductwork, a ducted heat pump connects to the existing air distribution system. For homes without ducts, a ductless mini-split heat pump handles both functions without requiring new duct runs. We size the equipment to the actual load of the home, not to whatever was there before.
A hydronic heating system circulates hot water through radiators or radiant floor tubing to heat the living space. When a boiler is not reaching temperature, a zone is not heating, or the system is making noise it should not, the diagnostic covers the heat exchanger, the circulator pump, the expansion tank, and the zone valves. Hydronic heating is a different kind of system from forced air, and diagnosing it correctly means knowing where the failure points are. We handle boiler service and repair for homes in Sonoma that still rely on this equipment.
A system that is completely down is a different situation from one that is underperforming, and we treat it that way. Emergency heating and cooling calls are taken every day from 7:30 AM to 10:00 PM. When the heat has gone out or the air conditioning has stopped working during a heat event, call us and describe what the system is doing. The symptoms you describe on the phone shape what gets brought out, so the more specific you can be, the better prepared the visit will be.
For a rental property, a system failure is a tenant issue as well as an equipment issue. For a business, it affects the people inside. We work with landlords and property managers to schedule service with the tenant's situation in mind, and we take short-notice work when the schedule allows. When you call, we will tell you what is available and confirm a time that works. One number. One call. One HVAC tech at your door. If you are working out what the job needs, our full list of heating and cooling services goes through it.
We serve Sonoma and the neighboring communities throughout this part of Sonoma County, including El Verano, Boyes Hot Springs, Fetters Hot Springs-Agua Caliente, Temelec, and Eldridge. Residential homeowners, landlords, and commercial property managers across the area all call us for the same range of heating and cooling work.
If your property is in Sonoma or a nearby community and you are not sure whether your address is within the area we cover, call and ask. Coverage is not something you should have to guess at before you book.
Ask what the load calculation shows for the correct size of the replacement system, because equipment that is the wrong size for the space causes problems regardless of how new it is. Ask what the replacement includes, specifically whether ductwork, the thermostat, and the linesets are part of the scope. Ask how the new system is commissioned and confirmed before sign-off. We answer all of those questions as part of the replacement conversation.
Yes. A rattle, a squeal, a grinding sound, or a new hum that was not there before is the system telling you something has changed. Ignoring it until the system stops working entirely is usually more costly than addressing the cause while the system is still running. Call us and describe the noise, including when it happens and which part of the system it seems to come from.
Yes. Changing the filter on a regular schedule is the single most effective thing a homeowner can do between visits. Keep the area around the outdoor unit clear of debris, leaves, and vegetation. Make sure the condensate drain is not visibly blocked. If you notice a change in how the system sounds or performs, call us rather than waiting for the next scheduled visit.
For a home without existing ductwork, a ductless mini-split is usually the most practical path because it requires no major structural work and conditions individual zones independently. For a home that already has ductwork in reasonable condition, adding a central cooling system to the existing air handler is a more straightforward process. Either way, the visit starts with an assessment of the home's layout and the existing system before anything is sized or priced.
Yes, we work on equipment regardless of who installed it. What matters is the make and model of the system, not its history. When you call, have the model information ready if you can find it, and we will confirm whether the equipment falls within what we handle.
We handle boiler and hydronic heating service alongside forced-air systems, heat pumps, and ductless equipment. If your home uses radiant floor heat or radiators fed by a boiler, that is within scope. Call and describe the system and what it is doing, and we will confirm what the visit covers.
Let us know if there are areas of the home where protection is a concern, particularly on a replacement or installation visit where equipment is being moved in and out. We take care with the property during the visit. If you have specific concerns, raise them when you call so they can be noted for the visit.
Sometimes the right answer is a repair. Sometimes it is a replacement. The only way to know is to have someone look at the system and tell you honestly what the diagnostic found and what the options are.
Call (707) 892-4623, describe what the system is doing, and we will get the visit scheduled. We are available every day from 7:30 AM to 10:00 PM.
HVAC service covers these nearby towns as well: Napa, Petaluma, Rohnert Park, Cotati, Novato.
Browse our full area list.
From a quick repair call to a full system replacement, we cover the heating and cooling work that Sonoma and Sonoma County homes actually need. The list below breaks down each service by what it covers, who it fits best, and a practical note worth knowing before you call. If you have a question about a specific situation, call us and we will talk through what makes sense for your home or building.
| Service Type | What the Service Includes | When You Need It | Helpful Details |
|---|---|---|---|
| Ductwork Repair & Sealing |
| Homes with hot and cold spots that do not respond to thermostat adjustments | Conditioned air escaping into an attic or crawlspace shows up in both comfort and energy bills before most homeowners connect the two. |
| Ductless Mini-Split Installation |
| Homes without existing ductwork or rooms that need independent temperature control | Most single-zone installations are completed in a day. Multi-zone systems take longer depending on the number of indoor units and line set routing. |
| HVAC System Installation & ReplacementMost Popular |
| Homeowners, landlords, and property managers replacing aging or failed equipment | Load calculations determine the right equipment size for the space. Undersizing and oversizing both cause comfort and efficiency problems. |
Call us to talk through your situation and get a quote on the work your home or building needs.
(707) 892-4623