Areas We Serve
Your Premier HVAC Contractor in the East Bay


AJ HVAC Systems delivers unparalleled heating and air conditioning services to homes and businesses throughout the East Bay. We combine expert technical skill with a commitment to our local communities, ensuring your environment is comfortable, efficient, and reliable, no matter the season.

A Commitment to Quality and Comfort
At AJ HVAC Systems, our foundation is built on providing high-quality solutions that stand the test of time. We understand that a functioning HVAC system is not a luxury—it's essential for your family's comfort and your business's productivity. Our team of certified technicians is dedicated to delivering superior workmanship on every project, from minor repairs to complex installations. We treat your property with respect, offer transparent pricing, and ensure you are completely satisfied with the results. Our goal is to be the HVAC contractor you trust for life.

Comprehensive HVAC Solutions for Every Need
We offer a full spectrum of heating, ventilation, and air conditioning services designed to meet the diverse needs of East Bay residents. Our expertise ensures your systems run at peak efficiency, saving you money on energy bills and preventing unexpected breakdowns. Our core services include air conditioning installation and repair, furnace maintenance, heat pump services, and improving indoor air quality. We work with all major brands and use only the highest quality parts and equipment.

The Advantage of a Truly Local Contractor
Choosing a local HVAC contractor means choosing a partner who understands the specific climate challenges and community standards of the East Bay. Unlike large, impersonal chains, we are your neighbors. This local focus guarantees faster response times for service calls and emergencies, a deeper understanding of local building codes, and a personalized approach to customer service. We are invested in the communities we serve because we are a part of them.
Proudly Serving Communities Across the East Bay
Our certified technicians are strategically located to provide prompt and reliable service to homes and businesses throughout the region. We are proud to offer our full range of HVAC services to the following communities:
- Alamo
- Dublin
- Fremont
- Lafayette
- Livermore
- Moraga
- Newark
- Orinda
- Pleasanton
- San Leandro
- San Ramon

Proactive Maintenance for Year-Round Peace of Mind
The most effective way to avoid stressful HVAC emergencies is through proactive, preventative maintenance. Our comprehensive tune-up programs are designed to keep your system in optimal condition, identify potential issues before they become costly problems, and extend the lifespan of your equipment. A regularly maintained system is more energy-efficient, provides better air quality, and ensures you have reliable heating and cooling when you need it most.

Ready to Respond: Emergency HVAC Services
When your heating or air conditioning fails, you need help fast. AJ HVAC Systems is ready to respond with prompt and effective emergency services. We understand the urgency of a system breakdown, whether it's during a summer heatwave or a cold winter night. Our technicians are on standby to diagnose the problem quickly, provide a clear explanation of the required repairs, and restore your comfort as soon as possible.
Partner with Your Local HVAC Experts
For dependable service and unmatched expertise, look no further than AJ HVAC Systems. We are dedicated to keeping our communities comfortable and providing the reliable HVAC support our neighbors deserve. If you reside in one of our service areas, contact us today to schedule a consultation, request a free estimate on a new system, or book your next maintenance appointment.