At Superior Mechanical Services Inc., dependable comfort is more than just a service—it is the standard customers throughout Livermore, CA, have come to expect. Whether it is a failing air conditioner during the summer heat, a heating issue on a cold morning, or ongoing maintenance for a commercial facility, every project is approached with professionalism, urgency, and attention to detail.

For years, businesses and property owners across the Bay Area have trusted our team for reliable HVAC solutions that keep systems operating efficiently year-round. From complex commercial HVAC systems to residential heating and cooling support, every service is designed around long-term performance, energy efficiency, and customer satisfaction.

When customers call, they are reaching a team that understands how important indoor comfort truly is — not just for convenience, but for productivity, safety, and peace of mind.

Industrial rooftop cooling units with fans and metal piping in blue daylight

Commercial HVAC Services

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Two outdoor air conditioning units beside a house, partially framed by green leaves

Air Conditioning Services

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Technician using gauges to service an outdoor HVAC unit with red and blue hoses attached

Emergency HVAC Repair

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Two technicians in blue uniforms inspect an outdoor HVAC unit with a tablet and tools

Wall-mounted plumbing and heating system with white tanks and copper pipes in a utility room.

Heating Services

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Worker in orange hard hat inspecting outdoor HVAC units on a building exterior

Gas water heater with control valve and flexible hose attached to the front panel

Exposed industrial ceiling with black pipes, silver ductwork, and hanging lights in a modern office space

White water heater mounted in a garage beside pipes, a hose, and a closed door

Person sitting on a gray sofa in a bright living room, taking a selfie with a phone.

Hand adjusting a ceiling-mounted HVAC filter above a kitchen appliance near ductwork and pipes

HVAC technician’s tool belt beside manifold gauges and hoses during an outdoor service call

A heating or cooling system is one of the most important investments in any property. Poor airflow, rising utility costs, inconsistent temperatures, and system breakdowns can quickly become frustrating and expensive. That is why customers throughout Livermore continue to rely on a company that values honest communication, responsive service, and lasting solutions.

From office buildings and commercial facilities to homes and multi-unit properties, every project begins with understanding the customer’s needs first. Recommendations are never one-size-fits-all. Instead, solutions are developed based on system performance, efficiency goals, and long-term reliability.

Superior Mechanical Services Inc. also understands that emergencies rarely happen at convenient times. When unexpected HVAC issues arise, fast response times and experienced troubleshooting can make all the difference.

Superior Mechanical Services, Inc. was founded in 1948 as a family-owned business built on hard work, dependable service, and long-term customer relationships. In 2005, the company was acquired by long-time employees Jerry Williams and Joe Enos with a shared vision of continuing Superior’s long-standing reputation as a high-quality mechanical contractor serving Livermore, CA, and surrounding Bay Area communities.

Today, Superior Mechanical Services Inc. continues to provide trusted residential and commercial HVAC solutions backed by decades of industry experience, responsive customer service, and skilled union-trained technicians. From heating and cooling repairs to commercial HVAC systems, indoor air quality solutions, and preventative maintenance, our team remains committed to delivering dependable workmanship with a practical, customer-focused approach.

As a company built on experience, professionalism, and long-term relationships, we take pride in helping homes and businesses maintain comfortable, efficient, and reliable indoor environments throughout every season.

Learn more about our company and leadership team:

★★★★★

Milton and Colton were very polite and did a great job. Made sure all the work was done and left the job site cleaner than any other company that worked with me

-Trujillo A.

★★★★★

Saul was great. He notified me that he was delayed, then called again to make sure I was still available so he could come by and complete the service. While here he was thorough and made sure the system was working properly.

-Karen M.

★★★★★

Superior were very professional and efficient. Milton and Colton did a great job with the installation of my HVC heating unit and water heater. They had to expand the attic door and remove one section of the attic truss to replace the heater and remove the door frame to install the water heater. They did a great job replacing the truss and door frame respectively. Everything is working as scoped. They also did a great job with cleanup. I would highly recommend their services to anyone!

-Reginald D.

★★★★★

Saul, our technician, is a highly skilled professional and very professional. Saul arrived promptly at the beginning of the service window. Was very thorough in his tune up of our hvac system and answered all my questions. Definitely recommend Saul and the whole team at Superior Mechanical

-Tom S.

★★★★★

Saul did the annual inspection of my A/C.

He was punctual, professional and courteous. Great service.

-Annette B.

★★★★★

Saul did a great job inspecting our system and walked us through the details. He was professional, polite, and extremely knowledgeable. We were so impressed that we joined their Membership Club. To say the least, we highly recommend Superior Mechanical!

-Tony T.

★★★★★

Excellent service. The service person (Saul) was friendly and helpful in explaining what he was doing and making suggestions to keep my system running smoothly.

-Richard C.

★★★★★

Their maintenance is great and worth it. You spend so much for these complex HVAC systems. I tried to self diagnose and just didn’t have the years of experience I needed.

O.T. Came out the day after I called because of a strange sound. He was great, answered all my question, very patiently. Tip: do purchase your semi-annual air filters from outside, like Amazon before you schedule your 6 month maintenance. You can save $40 each. And they will install them no charge

-Phil W.

★★★★★

We hired Superior last year to replace our entire HVAC system and all duct work in the crawlspace of our house, and add a couple ducts where needed. They were professional throughout the entire process. They provided various options and we went with dual fuel heat and a heat pump. The crew was punctual, professional and friendly. Most importantly, the system and installation were top quality, as noted by the city inspector. They have provided semi-annual maintenance since then and again they have been thorough and professional (thank you Saul). Highly recommend!

-Lisa E.

★★★★★

I’ve been a customer of Superior Mechanical Svc since 2023 and they send regularly skilled technicians 2 times a year for checking my house’s HVAC system. Saul, the technician who came today arrived on time and he checked AC and Heating system meticulously. Because of this regular services, my husband and I get a piece of mind in every summer and winter.

-Jin Y.