With over 40 years of experience serving the Bay Area, Kevin Michael Sullivan & Associates has earned a reputation for excellence in Mechanical and HVAC construction. Our team is highly skilled in the installation and maintenance of both wet and dry side HVAC systems, offering comprehensive solutions that prioritize performance, efficiency, and long-term reliability.

Our in-house sheet metal shop delivers high-quality, custom-fabricated components with speed, precision, and consistency. Whether you’re in need of one-off custom pieces or large-scale production runs, our advanced technologies and skilled technicians ensure we meet your project’s exact design specifications.

Our in-house welding department is a core pillar of our mechanical and piping operations. We bring decades of experience to both heavy industrial and commercial projects, delivering precision, strength, and reliability across every weld.

For over 30 years, the piping department at Kevin Michael Sullivan & Associates has delivered expert-level service across the Southwest. From complex process piping systems to underground utility infrastructure, we bring deep experience, formal training, and an unwavering commitment to safety and precision.

Our duct cleaning services use an exclusive European organic formula—odorless, effective, and safe for both residential and commercial environments. This meticulous process eliminates built-up dust, debris, and potential allergens, helping maintain clean air and improve the efficiency of your HVAC system.

The service department delivers reliable, responsive, and expert care for all your HVAC needs—ensuring your systems run efficiently and effectively year-round.