Windsor HVAC Company handles the full range of heating, cooling, and air quality work for homes and businesses across Windsor and Sonoma County. Whether the furnace stopped working overnight or you are pricing a first-time cooling system, we scope the job, explain what it involves, and give you the repair or install price before any work starts. Quick response. Careful diagnosis. Clean install.
You do not need to know what is wrong before you call. Describe what the system is doing, and the person who picks up can help you figure out what the next step looks like.
Call us at (707) 892-4623 to get a quote.
We cover the full scope of residential and commercial HVAC work in Windsor and the surrounding Sonoma County area. That means AC repair and service, heating and furnace repair, heat pump service, full system installation and replacement, ductwork repair and sealing, thermostat and smart-control installation, indoor air quality and air filtration, seasonal maintenance, and emergency service when heat or cooling goes out.
Homeowners, landlords, property managers, and business owners all call us for the same reason: the system stopped doing its job and they need someone who can diagnose it, price the fix, and get it handled. We work on central air systems, ductless mini-splits, gas furnaces, and heat pumps. Give us a call and we'll get the comfort back.
We are open every day from 7:30 AM to 10:00 PM.
Before a small issue turns into a full breakdown, a diagnostic visit can tell you exactly what is happening and what it will take to fix it. The sections below cover the most common calls we get, what the symptoms usually point to, and what a visit involves.
An AC that stopped blowing cold air, an AC blowing warm air, or a unit that will not turn on at all are the calls we handle most through the warmer months. The diagnostic covers the refrigerant charge, the electrical components, the coils, and the airflow path to narrow down the cause. Central air repair and ductless AC repair follow different paths, and we scope each one separately based on what the system is actually doing. We'll get your home comfortable again fast.
A furnace blowing cold air, a furnace that keeps shutting off, short cycling, or simply no heat in the house are all situations where the visit starts with a full system check before anything is quoted. The diagnostic covers the igniter, the heat exchanger, the pressure switches, the blower motor, and the control board. We also handle annual furnace tune-ups, which catch the small issues before they turn into a cold-night failure.
A heat pump not heating, a heat pump blowing cold air in heat mode, or a heat pump that has stopped cooling altogether each point to different causes, and the diagnostic works through them in order. Heat pumps, furnaces, and mini-splits are all within scope, so whatever system is installed at your property, the visit covers it. We'll explain the diagnosis before any work is authorized.
A mini-split not cooling, a mini-split not heating, or a ductless unit that is running but not conditioning the air are all common service calls. The visit checks the refrigerant level, the indoor and outdoor unit connections, the filter condition, and the control board. Most ductless repairs are diagnosed and priced in a single visit.
When a system has reached the end of its useful life or a repair cost no longer makes sense, a full replacement is the practical next step. We handle AC installation, furnace installation, heat pump installation, mini-split installation, and complete HVAC system replacement for both residential and commercial properties.
Load calculations done properly on a replacement matter more than most customers realize. An undersized system runs constantly and never reaches the set temperature. An oversized one short-cycles, wears out faster, and leaves the air feeling clammy. The sizing conversation happens on the call, and the scope is confirmed before anything is scheduled.
For commercial properties, we work with property managers and building owners to schedule installations around business hours where possible and scope the job based on the building's actual heating and cooling load. Give us a call and we will take care of it.
A home that heats and cools right is a comfortable home, but the equipment is only part of the picture. The ductwork, the thermostat, and the air quality equipment all affect how well the system performs day to day.
Leaking ducts are one of the most common causes of uneven temperatures and higher-than-expected energy use. A duct inspection identifies where conditioned air is escaping before it reaches the living space. Duct sealing and ductwork replacement are priced after the inspection, once we know what the system actually needs. The cost varies depending on the extent of the leakage and the accessibility of the ductwork.
A thermostat that is not responding, not holding a schedule, or not communicating with the system can make a well-functioning HVAC unit behave erratically. We handle programmable thermostat installation and smart thermostat installation, and the thermostat is confirmed as communicating with the system before sign-off on every install. The visit covers wiring, configuration, and a walkthrough of the controls.
Whole-home air filtration, air purifier installation, and HVAC filter upgrades address what circulates through the system every time it runs. For properties dealing with dust, allergens, or recurring odors, an air quality assessment identifies where the system can be improved. This work connects directly to the wildfire-smoke filtration services we cover in the section below.
Sonoma County's climate shapes the HVAC work that comes up most often here. Mild coastal-influenced winters, summers that have grown noticeably warmer in recent years, and wildfire smoke as a recurring seasonal concern mean the calls we get in Windsor are not the same as calls from drier inland regions or colder northern climates. The services below reflect what this area actually demands.
Many homes in Windsor were built before central air conditioning was standard, and for years the mild climate meant most households got by without it. That has changed. Recent record heat events have made cooling a genuine comfort and safety need, not a luxury. For homes without existing ductwork, a ductless mini-split system is often the most practical path: it requires no major structural work, and each zone is controlled independently. The installation visit covers load sizing, equipment selection, and a walkthrough of how the system operates.
Wildfire smoke is not an occasional concern in Sonoma County. It is a seasonal reality, and the fine particulate matter it carries moves through standard HVAC filters with little resistance. MERV-13 and higher-rated filtration captures a substantially greater share of those particles before they circulate through the living space. The installation visit assesses whether the existing air handler can support a higher-rated filter without restricting airflow, identifies compatible upgrades, and covers the full installation and test.
Sonoma County's mild winters make heat pumps a genuinely efficient fit for year-round heating and cooling. A heat pump moves heat rather than generating it, which means it runs efficiently across the temperature range this area sees most. For properties with an aging gas furnace, a heat pump replacement is a practical option that handles both heating and cooling from a single system. The sizing process accounts for the home's square footage, insulation, and window area, and the scope is confirmed before installation is scheduled.
If you're not sure your system can keep up when the weather shifts, a pre-season tune-up is the right call. A spring AC tune-up checks the refrigerant charge, the coil condition, the condensate drain, and the electrical connections before the first hot stretch of the year. A fall furnace tune-up covers the igniter, the heat exchanger, the flue, and the blower to make sure the system is ready before temperatures drop.
What a tune-up visit is not is a checklist run through quickly to close the ticket. The point is to find what is starting to wear before it becomes a breakdown call. We handle commercial HVAC maintenance on the same basis, working with property managers and business owners to schedule service around their operations. Give us a call and we will take care of it.
Commercial heating and cooling systems carry different demands than residential equipment. Longer run times, multiple zones, rooftop units, and the expectation that the space stays comfortable during business hours all factor into how a service call is scoped. We handle commercial HVAC repair, maintenance, and installation for businesses, landlords, and property managers throughout Windsor and Sonoma County.
When a commercial system goes down, the visit covers a full diagnostic before anything is quoted. The scope is explained, the price is confirmed, and the work is scheduled based on what the building actually needs. Property managers with multiple units or buildings can call to discuss what a service arrangement looks like for their portfolio.
HVAC repair costs and replacement costs vary depending on the system, the symptom, and what the diagnostic finds. We do not quote a number before we understand the job, and we do not start work before the price is confirmed. That applies to AC repair, furnace repair, heat pump installation, mini-split installation, and full system replacement alike.
When you call, the conversation covers what the system is doing, what service or installation you are looking at, and what the visit will involve. Quotes cover the scope of the work so you know what is included. We'll explain the diagnosis before any work is authorized.
When the heat goes out on a cold night or the AC stops working during a heat event, the situation does not wait for a convenient appointment. Emergency heating and cooling calls are answered, and the diagnostic covers the full system to find the cause before any repair is quoted.
If your furnace is not turning on, your AC has stopped working, or your heat pump is not producing heat or cool air, call us at (707) 892-4623.
We are open every day from 7:30 AM to 10:00 PM. One number. One call. One HVAC tech at your door.
Windsor is our primary service area, and we take calls from throughout Sonoma County. Nearby communities we serve include Healdsburg, Cloverdale, Geyserville, Santa Rosa, Rohnert Park, and Sebastopol. If your property is in the Windsor area or elsewhere in Sonoma County and you are not sure whether we cover your address, call and ask.
We work on central air conditioning systems, gas furnaces, heat pumps, and ductless mini-split systems, along with the ductwork, thermostats, and air filtration equipment connected to them. Heat pumps, furnaces, and mini-splits are all within scope, so whatever system is installed at your property, one call covers it. We serve homes and commercial properties throughout Windsor and Sonoma County.
Many homes in the Windsor area were built before central air conditioning was standard, and we install cooling systems in those homes regularly. For homes without existing ductwork, a ductless mini-split is often the most practical path because it requires no major structural work and conditions individual zones independently. For homes that already have ductwork in good condition, adding a central cooling system to the existing air handler is straightforward. Call us and we will talk through which approach fits your home.
We take emergency heating and cooling calls every day from 7:30 AM to 10:00 PM.
If the heat has gone out overnight or the AC stopped working during a heat event, call us at (707) 892-4623 and we will go through what the system is doing and get the visit on the schedule.
We do not promise a specific arrival window, but we take short-notice work and will tell you what the schedule allows when you call.
When you call, we talk through what the system is doing and confirm what the visit will cover. The scope and the price are settled on the call before anything is scheduled, so you know what you are agreeing to before anyone comes out. During the visit, the technician works through a full diagnosis before any repair is quoted, and we explain what was found before any work is authorized.
We handle commercial HVAC repair, maintenance, and system replacement for businesses, landlords, and property managers throughout Windsor and Sonoma County. Commercial systems carry different demands than residential equipment, including longer run times, multiple zones, and the expectation that the space stays comfortable during business hours. The visit covers a full diagnostic before anything is quoted, and the scope is confirmed before work is scheduled. Property managers with multiple units can call to discuss what a service arrangement looks like for their portfolio.
The price confirmed on the call covers the scope of the work as it is understood at that point. If the diagnostic reveals something that changes the scope, we explain what was found and confirm the updated price before any additional work is authorized. We do not start work before the price is agreed, and nothing is added without your knowledge.
We cover Windsor and the wider Sonoma County area, including Healdsburg, Santa Rosa, Rohnert Park, Sebastopol, Cloverdale, and Guerneville. If you are outside Windsor and want to confirm whether your address is within the area we cover, call us and ask. Any fees associated with your call are part of the conversation when you book.
Yes, and that information is useful. When you call, describe what you are experiencing in as much detail as you can: which rooms are not reaching the right temperature, whether the problem is consistent or intermittent, and what the system is doing or not 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.
A burning smell on first startup of the heating season is often dust burning off the heat exchanger and is usually not cause for alarm. A persistent burning smell, a smell of melted plastic, or a loud grinding or banging noise from the equipment are different situations and warrant a call.
Turn the system off at the thermostat if the smell is strong or the noise is severe, and call us at (707) 892-4623 to describe what you are experiencing.
We will help you figure out whether it needs an immediate visit.
Lead times vary depending on the time of year and the type of work. A diagnostic visit or repair can often be scheduled within a day or two, though peak season demand in summer and early winter can extend that. A full system installation or replacement typically takes a full day. When you call, we will tell you what the current schedule looks like and confirm a time that works.
An older system that is struggling to maintain temperature, running longer than it used to, or producing uneven comfort across the house is worth having looked at before it fails completely. A diagnostic visit covers the system's current condition and identifies what is causing the performance drop. From there, we give you a clear picture of whether a repair addresses the issue or whether a replacement makes more sense given the system's age and condition.
Windsor HVAC Company is available every day from 7:30 AM to 10:00 PM. The price is confirmed on the call before anything is scheduled, so you know what the visit covers before anyone comes out. Quick response. Careful diagnosis. Clean install.
Call (707) 892-4623 to get a quote on repair, installation, maintenance, or emergency service.
From a quick repair call to a full system replacement, we cover the heating and cooling work that Windsor 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. |
| Heat Pump Electrification |
| Homeowners moving away from gas heat or replacing an aging furnace and AC together | A heat pump moves heat rather than generating it, which makes it efficient across the mild temperature range that covers most of Windsor's heating season. |
| First-Time AC & Ductless Cooling Installation |
| Homes built without central air conditioning that are adding cooling for the first time | A home with no duct system, or with ducts not worth extending, is often a better fit for a ductless mini-split than for a new central system. |
| Seasonal Maintenance & Tune-Ups |
| Homeowners and property managers who want to catch small problems before they become emergency calls | For landlords managing multiple units, scheduled maintenance is a practical way to stay ahead of tenant calls and extend equipment life. |
| Heat Pump Repair & Service |
| Homes with a heat pump losing capacity in heating or cooling mode | Heat pumps can appear to be working while losing significant capacity, so a performance check is worth scheduling before symptoms worsen. |
| Heating & Furnace Repair |
| Homes with a furnace blowing cold air, short-cycling, or failing to start | A pre-season check in fall is the straightforward way to avoid a no-heat call in January. |
| 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. |
| Indoor Air Quality & Air Filtration |
| Households affected by wildfire smoke, allergens, or poor indoor air during fire season | A denser filter media can restrict airflow if the air handler cannot support it. We check compatibility before recommending an approach. |
| Emergency HVAC Service |
| Any household where the system has stopped entirely and the home is not livable | We take emergency calls every day from 7:30 AM to 10:00 PM. The goal on an emergency visit is a real diagnosis and a clear scope, not a rushed guess. |
| Thermostat & Smart Controls |
| Homes with a thermostat that is losing schedules, misreading temperature, or failing to communicate with the air handler | Heat pump systems require a thermostat compatible with reversing valve and auxiliary heat staging, which we confirm before recommending a replacement. |
| AC Repair & Service |
| Homes with a system blowing warm air or failing to start | A frozen evaporator coil or refrigerant issue can look identical from the thermostat, so diagnosis comes before any parts discussion. |
Call us to talk through your situation and get a quote on the work your home or building needs.
(707) 892-4623