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10 Best HVAC Companies in Castro Valley, CA

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Written By Bradford Cuthrell

Last Updated February 2024

On average, Americans devote 55% of their energy usage to heating and cooling their home, according to the Department of Energy. With so much money invested in cooling and heating your Castro Valley home, you want to ensure that you're getting the best return on your investment.

Read our list of the top HVAC companies in Castro Valley to find the best choice for you and your home. Our topic contractors can help you stay comfortable while reducing your bills.

Top 10 Best HVAC Companies in Castro Valley

Contra Costa Heating & Air Conditioning

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14670 Wicks Blvd, San Leandro, CA 94577 (510) 343-9841 contracostaheating.com

Clear pricing policy

Reliable customer support

Informative resources

Free quote

Services Offered

Zoning systems
Ductless
Ventilation
Emergency services
Indoor air quality
Ac installation
Filtration
Inspection
Maintenance
Furnace installation
Ac repair
Furnace repair

All About Air

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2415 Radley Ct Suite 8, Hayward, CA 94545 (510) 538-2247 allaboutaironline.com

Prompt service delivery

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

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

Comfy Heating & Air Conditioning Inc.

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1946 Republic Ave, San Leandro, CA 94577 (510) 317-7375 comfyhvac.com

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Free quote

Services Offered

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

Attic Pros

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718 Douglas Ave, Oakland, CA 94603 (800) 543-0382 atticprosinc.com

Free quote

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Duct cleaning
Ductless
Ac installation
Inspection
Furnace installation

Bay Area Climate Control

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1930 W Winton Ave # 4, Hayward, CA 94545 (510) 477-6793 bayareaclimatecontrol.com

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Free quote

Clear pricing policy

Reliable customer support

Services Offered

Maintenance
Ductless
Ac installation
Furnace repair
Ac repair
Ventilation
Furnace installation

Precision HVAC Heating & Air Conditioning

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24932 Mead Way, Hayward, CA 94541 (510) 925-0450 precisionhvacnorcal.com

Clear pricing policy

Reliable customer support

Free quote

Services Offered

Ventilation
Indoor air quality
Ac repair
Maintenance
Ductless
Ac installation
Furnace installation

HVAC Technician Near Me

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11 Castro St, San Leandro, CA 94577 (510) 264-7911 hvactechniciannearme.com

Clear pricing policy

Reliable customer support

Informative resources

Free quote

Services Offered

Furnace installation
Duct cleaning
Ductless
Maintenance
Ac repair
Filtration
Ac installation
Inspection
Furnace repair
Indoor air quality

4 Seasons Heating & Air Conditioning

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2215 National Ave, Hayward, CA 94545 (510) 886-3112 4seasonsheat.com

Prompt service delivery

Informative resources

Free quote

Clear pricing policy

Reliable customer support

Services Offered

Ac installation
Maintenance
Ac repair
Ventilation
Emergency services

Chill Heating & Cooling

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23 Beta Ct suite f, San Ramon, CA 94583 (925) 350-7558 chill-services.com

Free quote

Clear pricing policy

Reliable customer support

Services Offered

Maintenance
Ac installation
Ac repair
Furnace installation
Emergency services

Element Home Solutions

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6114 La Salle Ave #310, Oakland, CA 94611 (888) 980-4822 element-hvac.com

Reliable customer support

Clear pricing policy

Informative resources

Free quote

Services Offered

Ductless
Ac installation
Duct cleaning
Filtration
Indoor air quality
Furnace installation
Furnace repair
Maintenance
Ac repair
Emergency services
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 broken or outdated likely needs professional attention for repairs or replacement. Watch for these indicators that your system needs service:

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

These HVAC red flags indicate that you should have your system evaluated. A local technician can complete an inspection, identify problems, and recommend repairing or replacing your HVAC unit.

Cost of HVAC Installation and Maintenance in Castro Valley

Your HVAC installation or maintenance cost varies depending on the style of unit. Common HVAC unit varieties include the following:

  • Split or mini-split: Homes without ductwork for centralized climate control often have split or mini-split HVAC systems. These systems consist of internal units in each room to regulate temperature, which all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system works almost the same as a standard split system. It has the advantage of having the capability to use either electricity or gas for power.
  • Heat pump: Heat pumps transfer hot and cold air between your home and the outdoors. They don't generate their own heating and cooling, so they work more effectively in more moderate climates and may not be as effective during Castro Valley's hot summers.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller houses. These systems have a single heating and cooling unit, typically located in a basement or attic. They're small, energy-efficient, and easy to maintain.

The cost of HVAC maintenance also varies depending on the kind of work you're having done. HVAC systems are complex and might require different kinds of maintenance. The prices of some common jobs are as follows:

HVAC Unit TypeCost
Split$2,094-$5,338
Hybrid Split$4,243-$7,817
Heat Pump$3,285-$33,475
Packaged Heating and Air$275-$458

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 ways to minimize progressive deterioration and reduce the frequency of breakdowns.

  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months allows passive solar heating to warm your home. Closing the blinds in warmer seasons helps prevent some heat from getting inside. Doing both helps decrease the strain on your HVAC.
  • Change filters regularly. Cleaning or replacing your air filters every 30–90 days helps air flow smoothly through your system. Also try to keep debris away from the outdoor portions of your HVAC system as much as possible.
  • Keep your system clean. Keeping your grills, condenser fan blades, indoor evaporator coil, and ductwork clean helps your system function optimally and reduces the chance of mold growth. The National Air Duct Cleaners Association recommends that you clean your HVAC system when it starts to look dirty.
  • Monitor for potential problems. Keeping an eye out for problems, for instance by routinely checking your thermostat and energy bills, lets you resolve them before they get too expensive.
ServiceCost
Filter Replacement$69-$183
Condensor Cleaning$1,375-$4,124
Thermostat Repair$92-$229
Ductwork Cleaning$440-$1,100

How To Choose a Local HVAC Company

Finding the right HVAC company is key for a successful installation or repair. Hiring an experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Describe the issues and have technicians visit to inspect your HVAC system if possible. Compare the contractors' explanations, solutions, estimated costs, timeframes, and warranties. Avoid contractors that pressure you or demand payment upfront.

Check Credentials

When hiring an HVAC provider, choose one with technicians that have the right training, licenses, and experience. HVAC contractors in all states must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled by the state.

In California, HVAC contractors 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, and contractors with employees must also meet insurance requirements. Checking reviews on Google Reviews, the Better Business Bureau (BBB), Yelp, and similar sites can assist your decision as well. Choose a company with stellar reviews and stories of positive experiences from customers.

Understand Work Details

Always make sure you understand the details of your project. For HVAC repairs, your provider should detail which parts need replacement and why. Confirm that your technician will clean and test the full system after repairs are completed to ensure that it’s working properly. When replacing your HVAC, request that the installation company describe the new energy efficiency, brand, features, estimated installation time, and model. Before signing a contract, ask how your provider plans to accurately size the unit for your home and how much it will cost.

Compare Warranties

Reliable HVAC companies offer warranties on repairs and installations. The more complete the coverage, the better. Compare warranty details between providers and pick the one that offers the most comprehensive protection for a fair price.

Get Quote in Writing

Get a written proposal before HVAC work starts. A full quote includes both materials and labor costs. Make sure you understand and accept all terms before signing the contract.

Frequently Asked Questions About HVAC in Castro Valley, CA

You should have your HVAC system inspected approximately twice yearly. Following an inspection, your technician will inform you if any services are needed. You should also schedule an inspection if you notice new issues such as unusual smells, leaks, or strange noises. If your system has ductwork, it should be inspected every few years.

Generally, it's a good idea to schedule inspections in the spring and fall, as these times tend to be less busy. This also helps make sure your system is prepared for the summer and winter, when it typically sees 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. Set your thermostat as close to the outside temperature as you can, and try to avoid making drastic changes in temperature all at once. Keep your roof well-maintained and seal any leaks around your doors and windows to help keep cool air in. Similarly, make sure your attic is well ventilated to avoid trapping excess heat in your home.

It takes between one and three days to have an HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this might take anywhere from a few hours up to two days. This timeline can be influenced by the size of your home, how easily accessible your system is, and any new issues your technician runs into.

For a 2,000-square-foot home, you'll need between 2.5 and 5 tons of air conditioning capacity. In Castro Valley, 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 is likely to be more effective for cooling than window units.

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

Usually, HVAC financing is through a third-party lender. If your HVAC company doesn't offer financing, you may consider taking out your own loan. Be sure to speak with your HVAC company and a financial advisor to determine what options are available and appropriate for your situation.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and change or clean your air filters regularly.
  • Schedule regular inspections to take care of issues as they arise.
  • 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 to keep the temperature indoors as close to the outside temperature as you can.
  • When it comes time to replace any part of your system, explore Energy Star-certified or similar environmentally friendly options.

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