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10 Best HVAC Companies in Napa, CA

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Written By Bradford Cuthrell

Last Updated February 2024

On average, 55% of energy use in American homes goes toward heating and cooling, according to the Department of Energy. With the higher cost of living in Napa, you're likely eager to find ways to save on your energy bills.

We've compiled this guide to Napa's top HVAC companies to help you choose the best person for your job and get your system into its best shape ever.

Top 10 Best HVAC Companies in Napa

Sonoma County Heating and Air

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18047 Riverside Dr, Sonoma, CA 95476 (707) 721-6292 sonomacountyheatingandair.com

Reliable customer support

Informative resources

Clear pricing policy

Free quote

Services Offered

Inspection
Ac installation
Furnace repair
Furnace installation
Ductless
Ac repair

Indoor Air Technologies

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5116 Brookfield Ct, Fairfield, CA 94534 (707) 710-8544 iat-hvac.com

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Prompt service delivery

Free quote

Informative resources

Reliable customer support

Services Offered

Maintenance
Ductless
Furnace installation
Filtration
Ac installation

Reliable Refrigeration, Inc.

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4405 Solano Ave, Napa, CA 94558 (707) 252-7227 reliable-refrigeration.com

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Reliable customer support

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Services Offered

Indoor air quality
Ac installation
Furnace installation
Maintenance
Ac repair

Excelsior Heating & Cooling

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20549 Broadway, Sonoma, CA 95476 (707) 696-3053 excelsiorsonoma.com

Informative resources

Clear pricing policy

Services Offered

Ventilation
Ductless
Furnace repair
Maintenance
Ac installation
Furnace installation

Sears Heating and Air Conditioning

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914 Admiral Callaghan Ln, Vallejo, CA 94591 (619) 704-2229 searshomeservices.com

Reliable customer support

Clear pricing policy

Free quote

Informative resources

Services Offered

Ac installation
Ac repair
Ductless
Maintenance
Indoor air quality
Boiler installation
Filtration
Ventilation
Inspection
Furnace installation

Peterson Mechanical Inc.

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21819 8th St E, Sonoma, CA 95476 (707) 938-8481 petersonmechanical.com

Clear pricing policy

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Services Offered

Ac installation
Boiler repair

Golden State Comfort Systems

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Capitola Way, Fairfield, CA 94534 (707) 434-3664 goldenstatecomfort.com

Free quote

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Indoor air quality
Maintenance
Inspection
Ac installation
Furnace installation

Dooley's Heating and Air

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1435A N Texas St, Fairfield, CA 94533 (707) 419-4555 dooleys-hvac.com

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Prompt service delivery

Free quote

Clear pricing policy

Reliable customer support

Services Offered

Ac installation
Maintenance
Indoor air quality
Furnace installation
Filtration
Inspection

Same Day Air Conditioning and Heating

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1128 Western St #27, Fairfield, CA 94533 (707) 898-5773 samedayhvacfairfield.com

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Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Emergency services
Ac repair
Maintenance
Duct cleaning
Ac installation
Indoor air quality
Furnace installation

Alamo Heating and Cooling Inc

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380 Weatherly Way, Vacaville, CA 95687 (707) 908-8540 alamoheatingandcoolinginc.com

Prompt service delivery

Informative resources

Free quote

Reliable customer support

Clear pricing policy

Services Offered

Ac repair
Indoor air quality
Furnace installation
Maintenance
Ductless
Ac installation
Furnace repair
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

An HVAC system that's not working properly or old likely needs professional attention for maintenance or replacement. Watch for these signals that your system needs service:

  • Frequent breakdowns and need for repairs
  • Thermostat malfunctions or temperature control issues
  • Uneven heating/cooling or poor air circulation
  • Refrigerant leaks
  • Higher than normal energy bills
  • Odd noises when the system turns on
  • Corrosion, cracking, or rust
  • An HVAC system that's over 15 years old

If you notice any of these HVAC issues, have a technician inspect your system. A local professional can identify problems and let you know whether whether repairing or getting a new HVAC unit is the correct solution.

Cost of HVAC Installation and Maintenance in Napa

What you spend on HVAC installation or maintenance depends on your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home lacks the right ductwork for central air or heating, you likely have a split HVAC system. Split or mini-split systems consist of internal units that regulate the temperature in individual rooms, and that are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions comparably to a regular split system. It provides flexibility by providing the option to use either electricity or gas for energy.
  • Heat pump: Heat pumps transfer warm and cool air between your home and the outdoors. They don't create their own heating and cooling, so they work best in more moderate climates and may not be as effective during Napa's hot summers.
  • Packaged heating and air: Packaged HVAC systems are a great choice for smaller homes. They have a single cooling and heating unit, usually in an attic or basement. This unit is often small, cost-effective, and easy to maintain.

HVAC maintenance prices vary depending on the particular service needed. HVAC systems are complicated and may require different kinds of maintenance. Fees for some common services are as follows:

HVAC Unit TypeCost
Split$2,131-$5,432
Hybrid Split$4,318-$7,955
Heat Pump$3,343-$34,066
Packaged Heating and Air$280-$466

Ways to Save Money on HVAC Costs

It’s important to make any essential HVAC fixes or replacements as needed, though they can be expensive. The good news is that homeowners have methods to decrease the effect of wear and tear and reduce the frequency of breakdowns.

  • Keep your system clean. Regularly cleaning indoor evaporator coil, ductwork, grills, and condenser fan blades helps keep your HVAC system running efficiently and reduces the risk of mold. The National Air Duct Cleaners Association advises cleaning your system when it starts to look dirty.
  • Change filters regularly. Replacing or cleaning your air filters every 30–90 days helps air flow efficiently through your system. You should also try to keep debris away from the outside areas of your HVAC system as much as possible.
  • Change the position of your blinds seasonally. Closing your blinds in the summer blocks some passive solar heat from getting indoors. Opening the blinds in the winter allows this same heat to help warm your home. Both of these measures help decrease the work required from your home’s HVAC system.
  • Monitor for potential problems. Monitoring your system for problems — for example, by checking your thermostat and energy bills regularly — helps you catch issues before they get too expensive.
ServiceCost
Filter Replacement$70-$187
Condensor Cleaning$1,399-$4,196
Thermostat Repair$93-$233
Ductwork Cleaning$448-$1,119

How To Choose a Local HVAC Company

Knowing what makes a trustworthy HVAC company is vital for a successful installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.

Compare Multiple Bids

Contact at least three HVAC contractors for quotes. Describe your issues and schedule an in-person inspection if possible. Compare contractors' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid companies that pressure you or demand upfront payment.

Check Credentials

Choose an HVAC company with skilled technicians who have appropriate licensing and experience. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, contractors must pass an exam (the type of exam depends on the kind of equipment they intend to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled at the state level.

HVAC contractors in California must be licensed by the Department of Consumer Affairs Contractors State License Board (CSLB). HVAC contractors are considered specialty contractors by the CSLB. All contractors are required to have four years of experience and to be bonded. Contractors with employees must also meet insurance requirements. Reviewing feedback on Yelp, Google Reviews, the Better Business Bureau (BBB), and similar sites can assist your decision. Choose a provider with stellar reviews and stories of positive customer experiences.

Understand Work Details

It’s important to understand what the work process will look like. For HVAC repairs, the company should explain the particular parts that need replacement and why. Confirm that your technician will clean and test your system afterward to ensure proper functioning. When replacing your HVAC, ask the contractor to provide details on the new model, energy efficiency, estimated installation time, features, and brand. Before signing a contract, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.

Compare Warranties

Reputable HVAC companies stand behind their services with warranties. Compare warranties from different companies, remembering that more comprehensive coverage is better. Look for the provider that offers the most coverage for a fair price.

Get Quote in Writing

Get written quotes before beginning any HVAC work. The quote should outline costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Napa, CA

Typically, your HVAC system should be inspected twice a year. After that inspection, your technician will tell you what services are required. You should also call a technician if you start to notice any issues, like leaks, strange noises, or unusual smells. If you have ductwork in your home, it should be serviced every few years.

The best times of the year to have an HVAC inspection are the spring and fall. Technicians are less busy during these times, which makes it easier to get an appointment. This also helps get your system ready for the summer and winter, which is when it normally gets the most use.

You can save energy during the summer by reducing the amount of power your HVAC system uses to keep your home cool. Keep your thermostat temperature as close to the outside temperature as is comfortable, and try to avoid making drastic changes in temperature all at once. Keep your roof in good shape and seal any door or window leaks to avoid letting cool air escape. Similarly, make sure your attic is well ventilated to avoid trapping excess heat in your home.

Generally, HVAC installation or replacement takes between one and three days for the entire system. Installing or replacing an air conditioning unit or a furnace may take anywhere from a few hours up to two days. The exact amount of time will vary depending on things like the size of your house, how easily accessible different parts of the system are, and whether your technician discovers any problems.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. In Napa, you'll probably want to purchase a unit on the higher end of this range. For a house over 1,000 square feet, central air will usually be more effective than window units for cooling.

For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units). In Napa, you might be able to make do with a lower-capacity furnace.

Your HVAC company might provide financing options through a third-party lender, or you might be able to obtain your own loan. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you're choosing the best option for you.

There are a number of ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and change or clean your air filters regularly.
  • Have regular inspections to take care of issues as they come up.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try keeping the temperature indoors as close to the outside temperature as is comfortable.
  • When replacing part of your system, explore Energy Star-certified or similar environmentally friendly options.

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