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HVAC Repair, Replacement & Maintenance in Castro Valley, CA

Your heating and cooling system provides year-round indoor climate control to make your house feel like home.

At AIS Heating & Air Conditioning, we aim to deliver the best residential and commercial HVAC repair, replacement, installation, and maintenance services to keep your heating and cooling systems operating efficiently.

With skilled technicians that service all HVAC system brands, you’re guaranteed reliable, customer-focused HVAC services from start to finish.

Call Us Today! (510) 792-4328
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Air Conditioning Services

Residents and business owners in Castro Valley need a reliable cooling system when the temperature rises in summer. Our AIS Heating & Air Conditioning technicians provide a wide range of cooling services, including commercial AC services, to detect and resolve any issues. Whether it’s helping to optimize the performance of an existing malfunctioning system with repairs or replacing an outdated system, we deliver quality work you can trust to keep your system running up to manufacturer standards. Our air conditioning services include:
  • AC repair: We’re equipped to provide fast and reliable repair solutions for your cooling system to restore your home’s comfort.
  • AC installation and replacement: When it comes to helping you find and install the right high-efficiency air conditioner for your home, AIS offers the best service. We work with industry-leading brands like Bryant to custom-fit your home’s cooling needs.
  • AC maintenance: Routine maintenance not only keeps your repairs to a minimum but also extends the service life of your AC for efficient and cost-effective cooling. Schedule your maintenance to boost your unit’s performance!

Heating Services

When choosing a cooling system, the size of the home/business, location, climate, and lifestyle are all elements we consider when advising our clients.

Generally, HVAC systems consist of an indoor and outdoor unit that work together to cool your home or business. The outdoor unit is the condenser that pumps cool air to the indoor evaporator unit, which then transfers the cool air into your home or business.

We match indoor and outdoor units to promote maximum cooling system efficiency. Conventional ACs are ducted in and best suited for cooling an entire building. Room ACs are usually mounted on windows or walls and used to cool smaller spaces.

Get expert AC installation with AIS Heating & Air Conditioning. Our experts will help install the right AC for your Fremont, CA, home. Contact us today to schedule your air conditioning installation.

Ductless Mini-Split Services

A ductless mini-split system lets you control the temperature of every individual room in your home or business with dual function. Upgrade your space with cooling and heating that doesn’t require ductwork installation and provides zoned temperature control without the hassle of a traditional HVAC system. Our ductless mini-split services include: We recommend having two annual tune-ups on your ductless mini-split system for optimal performance, especially if it’s in operation for the summer and winter months!

Heat Pump Services

Heat pumps bring outdoor heat into your home and can reverse the process of cooling your home by pumping warm air out. Heat pumps are the ultimate choice for year-round comfort. At AIS Heating & Air Conditioning, our expert technicians are here to answer all your heat pump needs with: We’re your heat pump and ductless mini-split experts. Call (510) 792-4328or contact us online for repairs, replacements, and maintenance you can trust.

Indoor Air Quality Services

Don’t let bad indoor air exacerbate your allergies or lead to respiratory ailments. Protect your at-home health with indoor air quality services to reduce allergy symptoms, eliminate bacteria, and improve the overall health of you and your family. We offer:
  • Humidifier installation: For whole-home humidifiers that balance the moisture in your air, turn to AIS.
  • UVC air purifier installation: Stop bacteria and other microbes in their tracks with ultraviolet light. Air purifiers reduce airborne dust, kill germs, and purify your air for a more comfortable home environment.
  • Ductwork installation, sealing, and repair: Your air duct system plays a critical role in moving temperature-controlled air throughout your property. Keep it free of dents, cracks, mold, or leaks with professional ductwork services for increased HVAC efficiency and better indoor air quality.
Call (510) 792-4328 or contact us online for indoor air quality solutions and services in Castro Valley.

Why Choose AIS Heating & Air Conditioning?

We work hard to deliver consistent HVAC services to maximize the comfort of your space, whether it’s your business or home. When you enlist the services of AIS Heating & Air Conditioning, you can receive:
  • High-quality work performed by trained and certified HVAC technicians
  • Upfront pricing
  • Eligibility for BayRen rebates that can help you save when you invest in upgrading to an energy-efficient HVAC system
  • Comprehensive maintenance plans for preventative HVAC care
For total HVAC care, call (510) 792-4328 or contact us online. Our expert team provides the most comprehensive care for your heating and cooling system with year-round service you can depend on.
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What to Expect

Discover the AIS Heating & Air Conditioning Difference

About us
Family-Owned & Locally Operated

When you work with our team, you’re supporting a business that genuinely cares about the local community and treats every customer like family. Our long-standing presence in the area ensures personalized service with a deep understanding of the local climate.

Quality Workmanship​

We take pride in delivering top-notch craftsmanship on every project, ensuring your HVAC systems are installed and maintained to the highest possible standards. Our attention to detail guarantees long-lasting performance and reliability for all heating and cooling systems.  

Superior Service​

With a commitment to customer satisfaction, our HVAC team goes above and beyond to ensure all your heating and cooling needs are met. Our responsive and friendly service makes every interaction seamless and stress-free, from initial consultation to project completion.  

Straight-Forward Pricing​

With clear, transparent pricing and no hidden fees, we ensure you know exactly what to expect before any work begins. This commitment to honesty and integrity helps us build trust and allows customers to make informed decisions without unnecessary surprises.  

Performance Guarantees

When you choose our team, you can rest assured that our HVAC systems and services are backed by industry-leading performance guarantees. Our commitment to quality means we stand behind our work, providing peace of mind to every homeowner we have the privilege to serve.  

Highly Trained Technicians​

Our HVAC team consists of certified, highly skilled technicians who remain up-to-date with the latest industry advancements. Through our commitment to continuous training, we ensure every installation, repair, and maintenance service is completed with precision and care.  

Family-Owned & Locally Operated

When you work with our team, you’re supporting a business that genuinely cares about the local community and treats every customer like family. Our long-standing presence in the area ensures personalized service with a deep understanding of the local climate.

Quality Workmanship​

We take pride in delivering top-notch craftsmanship on every project, ensuring your HVAC systems are installed and maintained to the highest possible standards. Our attention to detail guarantees long-lasting performance and reliability for all heating and cooling systems.  

Superior Service​

With a commitment to customer satisfaction, our HVAC team goes above and beyond to ensure all your heating and cooling needs are met. Our responsive and friendly service makes every interaction seamless and stress-free, from initial consultation to project completion.  

Straight-Forward Pricing​

With clear, transparent pricing and no hidden fees, we ensure you know exactly what to expect before any work begins. This commitment to honesty and integrity helps us build trust and allows customers to make informed decisions without unnecessary surprises.  

Performance Guarantees

When you choose our team, you can rest assured that our HVAC systems and services are backed by industry-leading performance guarantees. Our commitment to quality means we stand behind our work, providing peace of mind to every homeowner we have the privilege to serve.  

Highly Trained Technicians​

Our HVAC team consists of certified, highly skilled technicians who remain up-to-date with the latest industry advancements. Through our commitment to continuous training, we ensure every installation, repair, and maintenance service is completed with precision and care.  

About us
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Reviews

See What Your Neighbors Are Saying

At AIS, we are committed to providing reliable, trustworthy, knowledgeable solutions to every family in Livermore, Fremont and beyond. But don’t just take our word for it.  
See what your neighbors are saying about our exceptional HVAC solutions by exploring their testimonials below! 

Read our reviews

I got quotes from three companies for doing a furnace and duct replacement and a/c installation. Ray Linden who came out from AIS to do the…

Uday K.
Uday K.

I had a large wall AC installed 5 years ago by AIS. It has been wonderful and a life saver with these heat waves. Today Sergio,…

Michelle
Michelle

The team showed up right on time, were courteous, professional and hardworking people, and finished the massive job an hour ahead of schedule. We absolutely love…

Leo
Leo

This review is overdue. We had our full HVAC replaced this last spring and decided to go with AIS after speaking with three different companies. AIS…

Crystal
Crystal

Superb work, kind, not rushed and thoughtful in answering questions. You can’t find better than this company.

Raymond
Raymond

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