About Us

Cutting-Edge HVAC Solutions, Built on 20 Years of Trust

here for all your Heating & cooling needs.
Flexible Financing Options
Financing Specials
Flexible financing options available for all budgets. Get approved quickly with low or no-interest plans.
Financing Specials
Inner Reviews

Making People Comfortable, One Home at a Time, Since 2001

Sandium is passionate about creating the perfect indoor climate for your home. We do this using the latest evidence-based strategies and technologies.

As a leading HVAC company in San Jose, we are dedicated to creating comfortable living spaces that you can truly call home. With a history spanning over two decades, we prioritize the client experience above all else, building lasting relationships that define the success of our business.

Our team stays at the forefront of technological advancements and adopts evidence-based strategies to optimize your indoor comfort. We love what we do, the clients we work with, and the team we work alongside!

Our Journey: Over 20 years of Experience

Founded in 2001, Sandium began as an installer of heating and air conditioning systems. Prior to that, we collaborated with a major manufacturing company, TRANE, contributing to the development of cutting-edge building analysis tools, comfort system controls, and commercial building performance contracting.

As a full-service HVAC company, we offer design, engineering, and installation services for heating & air conditioning systems, zone systems, high-efficiency water heaters, Home Performance contracting, energy auditing, and ventilation/air filtration services.

Sandium proudly holds multiple licenses, including C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), C-2 (Insulation and Acoustical), and B (General Building Contractor).

Why Sandium: Our Commitment to Excellence

Our bonded and insured team takes the time to listen to your specific needs, gathering essential data to provide custom solutions with holistic home energy, air quality, and comfort in mind.

Partners in Savings

We actively participate in major rebate and incentive programs to pass along value and savings to our clients, managing all processes in-house for a seamless experience.

Expert Technicians

Each project is led by a skilled technician who manages the process from start to finish. Our factory-trained teams have deep expertise in Bay Area HVAC, ensuring respectful, courteous, and confident workmanship. Safety is paramount, and our teams undergo mandatory safety training twice a month to guarantee job-site safety.

Satisfaction Guaranteed

To stand behind our quality, we offer a 100% Satisfaction Guarantee, as we believe in the excellence of our services.

Community and Industry Recognition

Proud members of Build it Green, Home Performance with Energy Star, Efficiency First, CBPCA, and ACCA, we are committed to making a positive impact. Our reputation is earned through recognition from Yelp, Angie’s List, Google, Service Magic, and the Better Business Bureau (BBB), demonstrating our clients’ appreciation for our services.

free estimates
on all installations!