HVAC Contractor in Hollister, CA

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Three logos for emergency service , fixed right promise , and 18 years experience

Precision is essential for indoor comfort, and no one knows that better than a skilled HVAC contractor. These experts create air environments based on square footage, insulation, building use, and climate fluctuation, in addition to installing heating and cooling systems. From digital thermostats to specialized ducting, a trustworthy contractor assesses the area, maximizes efficiency, and guarantees adherence to changing energy regulations. Their work has a direct impact on utility costs, air quality, and system longevity, regardless of whether it's a residential heat pump or a commercial rooftop unit.


What sets a professional HVAC contractor apart is not just technical skill, but diagnostic depth. HVAC systems are layered as refrigerant levels, airflow resistance, sensor calibration, and filter performance; all must align. Contractors bring the tools and know-how to balance this equation. Their preventative maintenance programs can catch a failing capacitor or misfiring valve long before it becomes a shutdown. Especially in high-demand seasons, having a trusted technician on call minimizes downtime and keeps environments safe, quiet, and climate-controlled.


Neither homeowners nor businesses should settle for a quick quote when hiring. System brand knowledge, insurance, manufacturer certificates, and licensing are important. Inquire about their procedures for load estimates, warranty registration, and emergency maintenance. Reputable contractors encourage questions rather than try to avoid them. Beyond just internet ratings, it's also worthwhile to look at previous project scopes. HVAC is a commodity, not a purchase. Building a connection with the HVAC contractor you choose can last for years, encompassing system replacements, seasonal tune-ups, and service calls. This collaboration transforms intricate mechanical infrastructure into something smooth, silent, and vitally necessary when done correctly.


In Hollister, California, LJ Mechanical Heating & Cooling Inc offers professional HVAC services, such as heating, installation, and repair of furnaces and air conditioners, and maintenance and installation of heat pumps. We provide dependable, expert solutions made for performance and comfort all year long.

About - Hollister, CA

The rich San Benito Valley is home to Hollister, California, which is encircled by hills covered in vineyards and active fault lines that have sculpted the region's untamed landscape. With strong Spanish and Mexican traditions, the city grew as a ranching and agricultural center after being founded in 1868 and incorporated in 1872. Winters remain mild and verdant, while summers are dry and sun-drenched. The Hollister Hills SVRA draws off-road enthusiasts, while the city's historic center features early 20th-century brick buildings and façades. Even as new communities grow closer to the valley's boundaries, landmarks like Sacred Heart Church and the San Benito County Courthouse keep the community rooted in its history.

Happy Customers in Hollister, CA

Top notch company - owner fixed my moms AC!!! Do not hesitate to call them for service, honest and reliable. We will use them again & again! Thank you Larry for the great service we truly appreciate it!!

Hackett P.

I work in property management and have used LJM Mechanical to service my properties. He knowledgeable in his work. He goal is to save the customer money and give you options on how to get what is needed. I would continue to refer his work at all of my Properties.

John M.

Wow, I normally don't write reviews, but Larry's customer service was so outstanding, I need to let people know. He came out to my house the same afternoon I called him. Very professional, very personable, with great communication skills. I definitely will call on him again.


Thank you LJ Mechanical!

Annette B.

We really enjoyed working with Larry. He knows his stuff and is not out to gouge anyone for more than what is needed. Him and his son are professional, friendly and timely. We highly recommend them them who need any AC , HVAC or heating repairs. great job. Thank you Larry!

Marcelina L.

We had an excellent experience. Larry came out on a weekend on his day off to help us out. We called and he showed up just 2 hours later. Very professional and fix the issue quickly. Prices were are really reasonable. Would totally 100% recommend him to others.


Next time are heater heater has an issue we will be giving Larry a call!

Diane G.

Larry and his assistant (Thomas) were punctual and focused on our issue with the A/C unit. Once diagnosed, Larry provided an accurate estimate and completed the work efficiently and as quoted. Larry was extremely professional and courteous and completed the work to our satisfaction.

William V.

Top notch company - owner fixed my moms AC!!! Do not hesitate to call them for service, honest and reliable. We will use them again & again! Thank you Larry for the great service we truly appreciate it!!

Hackett P.

Top notch company - owner fixed my moms AC!!! Do not hesitate to call them for service, honest and reliable. We will use them again & again! Thank you Larry for the great service we truly appreciate it!!

Hackett P.

I work in property management and have used LJM Mechanical to service my properties. He knowledgeable in his work. He goal is to save the customer money and give you options on how to get what is needed. I would continue to refer his work at all of my Properties.

John M.

Wow, I normally don't write reviews, but Larry's customer service was so outstanding, I need to let people know. He came out to my house the same afternoon I called him. Very professional, very personable, with great communication skills. I definitely will call on him again.


Thank you LJ Mechanical!

Annette B.

We really enjoyed working with Larry. He knows his stuff and is not out to gouge anyone for more than what is needed. Him and his son are professional, friendly and timely. We highly recommend them them who need any AC , HVAC or heating repairs. great job. Thank you Larry!

Marcelina L.

We had an excellent experience. Larry came out on a weekend on his day off to help us out. We called and he showed up just 2 hours later. Very professional and fix the issue quickly. Prices were are really reasonable. Would totally 100% recommend him to others.


Next time are heater heater has an issue we will be giving Larry a call!

Diane G.

Larry and his assistant (Thomas) were punctual and focused on our issue with the A/C unit. Once diagnosed, Larry provided an accurate estimate and completed the work efficiently and as quoted. Larry was extremely professional and courteous and completed the work to our satisfaction.

William V.

Top notch company - owner fixed my moms AC!!! Do not hesitate to call them for service, honest and reliable. We will use them again & again! Thank you Larry for the great service we truly appreciate it!!

Hackett P.

I work in property management and have used LJM Mechanical to service my properties. He knowledgeable in his work. He goal is to save the customer money and give you options on how to get what is needed. I would continue to refer his work at all of my Properties.

John M.

Hire Us! Best and Top-Rated HVAC Contractor in Hollister, CA

We at LJ Mechanical Heating & Cooling Inc have been providing professional HVAC solutions with care and accuracy in Hollister, CA, for more than 20 years. Our areas of expertise include the installation and repair of furnaces, heating services, air conditioning services, heat pump installation, and full-system HVAC maintenance. Our crew has a reputation for doing honest work, doing clean installations, and providing trustworthy diagnostics that keep homes and businesses operating effectively all year long. Regardless of the weather, hot summer or chilly winter, we are prepared to provide prompt, expert service that is customized to meet your demands. We provide lasting comfort, not merely system fixes.

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We bring comfortable living to every home.