A home that heats and cools right is a comfortable home, and that is what Windsor HVAC Company is set up to deliver. We handle heating and cooling work for homes and businesses throughout Windsor and the wider Sonoma County area, from a straightforward AC repair on a hot July afternoon to a full system replacement when an aging unit finally gives out. Heat pumps, furnaces and mini-splits all within scope, alongside ductwork, thermostats, indoor air quality, and emergency service when a system goes down without warning.
Whatever brought you to this page, the next step is a phone call. We will talk through what is happening, confirm what the visit covers, and get something on the schedule.
Quick response. Careful diagnosis. Clean install.
Not every HVAC company works the same way, and the range of work a contractor handles matters when you are trying to figure out who to call. We cover the full spread of residential and commercial heating and cooling: AC repair and service, heating and furnace repair, heat pump repair and installation, full system installation and replacement, ductless mini-split systems, thermostat and smart-control installation, ductwork repair and sealing, indoor air quality and air filtration, and seasonal maintenance. If a system heats or cools the space, it is within scope.
When you call, the conversation starts with what the system is doing, or not doing. The symptoms you describe on the phone shape what gets brought out. A unit that runs but does not cool points somewhere different than one that will not start at all, and knowing that before the visit means the right tools and parts are along for the job. Airflow problems and uneven temperatures across rooms are common complaints, and so are refrigerant leak diagnosis and condenser or compressor issues on older equipment. The repair or install scope is priced before the work starts, so you know what you are agreeing to before anything is scheduled.
We'll explain the diagnosis before any work is authorized.
Sonoma County's warm, dry summers put real demand on cooling equipment. A system that struggles to keep up, cycles on and off without settling, or stops working on the hottest day of the year is not a problem to put off. We diagnose AC faults across central air systems, including condenser and evaporator coil service, refrigerant issues, and electrical controls on the equipment side. When a repair no longer makes financial sense, we handle new AC unit installation and full system replacement, sized to the home and the local climate.
Windsor's winters are mild compared to much of California, but cool wet weather from November through March means a furnace or heat pump that is not performing correctly is a real problem. A furnace that will not turn on, blows cold air, or cycles off before the space is warm needs a proper diagnosis, not a guess. We handle furnace repair and replacement alongside heat pump repair and installation. Heat pumps are a strong fit for this region's climate, and we work on them in both heating and cooling modes.
Ductless mini-split systems suit a lot of situations in this area: room additions, older homes without existing ductwork, detached structures, and spaces where zoning and comfort control matter. Installation involves placing the indoor air handler, running the line set to the outdoor unit, and confirming the system is communicating and operating correctly before sign-off. We also service and repair existing mini-split systems when they lose efficiency or stop working.
A thermostat that is not reading the space correctly, failing to communicate with the system, or simply past its useful life affects how the whole system runs. We handle standard thermostat replacements and smart thermostat installations, including setup and system pairing. The thermostat confirmed as communicating before sign-off is a standard part of the job, not an afterthought. If a smart control is not talking to the equipment, the installation is not finished.
Leaking or poorly sealed ductwork shows up as uneven temperatures from room to room, higher energy use, and a system that runs longer than it should to hit the thermostat setting. We locate leaks, seal them properly, and replace sections of duct that are too far gone to seal. Full duct replacement is also within scope when the existing system has deteriorated or was never installed correctly. Getting the ductwork right is part of getting the whole system to perform.
What circulates through a home's air system affects how the space feels and how the occupants breathe. We install whole-home air filtration systems and address indoor air quality concerns that show up as dust buildup, stale air, or systems that aggravate allergies. A visit covers an assessment of what the existing setup is doing and what options fit the home, including filtration upgrades and, where appropriate, humidity management.
Before a small issue turns into a full breakdown, a maintenance visit can catch what is developing. A seasonal tune-up covers the things that quietly degrade over a heating or cooling season: refrigerant levels, control testing, heat exchanger inspection, drain line clearing, and airflow confirmation. Catching a worn component or a marginal reading during a scheduled visit is a different situation from catching it when the system stops on a cold night or a hot afternoon.
Preventive maintenance is practical rather than precautionary. A system that has been checked and adjusted runs more efficiently and is less likely to fail at an inconvenient time. If energy bills have been climbing without an obvious reason, or if the system has not been serviced in a year or more, a tune-up is a reasonable starting point. Ask what a maintenance visit covers for your system type when you call, and we will give you a straight answer.
If you're not sure your system can keep up, or if it has already stopped working, that is exactly the situation we take calls for. A heating failure in January or a cooling system that quits in August is not something to wait on. Emergency calls are answered every day from 7:30 AM to 10:00 PM. When you call, we go through what the system is doing, confirm the scope of the visit, and get it on the schedule.
We do not promise a specific arrival window, but we do take short-notice work and we will tell you what the schedule allows when you call. What gets confirmed on the call is the scope and the price, so there is nothing left unclear before the visit happens.
Give us a call and we will take care of it.
If you've never hired an HVAC company before for a commercial property, or if you are taking on a new building and need to understand what the existing system needs, the process starts the same way it does for a home: a conversation about what the system is doing and what the space requires. We handle commercial AC repair, commercial heating repair, and system replacement across a range of property types and sizes.
A commercial replacement is not the same job as a residential one. Load calculations done properly on a replacement account for the building's layout, occupancy, and use, not just the square footage. Getting that right at the start means the system is sized for the actual load rather than for what happened to be installed before. We work with property managers and business owners on both planned replacements and urgent repairs, and the pricing conversation happens before anything is scheduled.
We'll get your property comfortable again fast.
HVAC pricing varies by system type, equipment age, the scope of the repair, and what the job turns out to involve once a technician looks at it properly. A thermostat swap is a different conversation from a full system replacement, and a refrigerant recharge is not the same job as a heat pump installation. The right number for your situation comes from a call, not from a price list.
What we can tell you is how the pricing process works. The scope of the job is confirmed before any work is scheduled, and the price is given at that point, covering what the visit includes. If you are in Windsor or elsewhere in Sonoma County and want to know what a repair or replacement is likely to cost, call and describe what is happening. We will tell you what we know from that conversation, and we will confirm the full price before anything starts.
Windsor is our primary service area, and we cover the wider Sonoma County region including Healdsburg, Santa Rosa, Rohnert Park, Petaluma, Sebastopol, and Cloverdale. Sonoma County's climate runs warm and dry through summer and cool and wet through the winter months, which means both cooling reliability in the warm season and heating performance in the cooler months are real concerns here. Heat pump systems are a particularly good fit for this region's temperature range, and we see demand for both AC work and heating service across the calendar year.
If you are outside Windsor but still in the county, call and we will confirm whether your address is within the area we cover.
We serve Windsor as our primary area and take calls throughout Sonoma County, including Healdsburg, Cloverdale, Geyserville, Santa Rosa, Rohnert Park, Petaluma, Sebastopol, and Guerneville. If you are in the county and are not sure whether your address is within the area we cover, call us and we will confirm. We handle both residential and commercial properties across the region.
The most useful questions cover what the visit includes, what the price covers, and what happens if the diagnostic reveals something beyond the original scope. Ask what the call-out covers, whether the diagnostic fee applies toward the repair, and how additional findings are handled. We answer those questions directly on the call so you know what you are agreeing to before anything is scheduled.
Heating and cooling work in Windsor and Sonoma County covers residential homeowners, landlords replacing equipment between tenants, multi-unit property managers, and commercial building owners. The scope of the visit and the conversation on the call are shaped by what the property needs, whether that is a single-family home with a struggling furnace or a commercial space with a rooftop unit that has stopped cooling. All customer types call us for the same range of heating and cooling work.
Sonoma County's climate shapes the HVAC work that comes up most often in this area. Mild winters, increasingly warm summers, and wildfire smoke as a seasonal concern mean the calls we get here are not the same as calls from drier inland regions or colder climates. Knowing that a large share of Windsor homes were built without central air conditioning, for example, affects how a first-time cooling installation is scoped and which equipment options make sense for the space.
The diagnosis is explained before any work is authorized, so you are not left waiting to find out what was found. If the scope changes during the visit because the diagnostic reveals something additional, we confirm the updated price before proceeding. You are not presented with a completed job and a bill that reflects decisions made without your input.
The quote starts with a conversation about what the system is doing and what the visit will cover. For a repair, the price is confirmed after the diagnostic identifies the cause. For an installation or replacement, load calculations and equipment selection are part of the scoping conversation, and the price is confirmed before anything is scheduled. Nothing is started before the price is agreed.
If a system develops a related issue after a visit, call us and describe what is happening. We will go through what was done, what the current symptom is, and what the next step looks like. The goal is to resolve the problem correctly, and we treat a callback as part of the job rather than as a separate service call to be re-quoted from scratch.
We treat the space around the equipment the way we would want our own property treated. That means clearing away packaging, removing old components, and leaving the area around the unit in reasonable order before sign-off. If there is anything specific about access or the area around the equipment you want us to know before the visit, mention it on the call.
We cover AC repair and service, heating and furnace repair, heat pump work, mini-split installation and repair, ductwork, thermostats, indoor air quality, seasonal maintenance, and emergency HVAC service for homes and businesses throughout Windsor and Sonoma County. Calls are answered every day from 7:30 AM to 10:00 PM.
Call (707) 892-4623 to get a quote, schedule a visit, or talk through what your system needs.
One number. One call. One HVAC tech at your door.
(707) 892-4623