1045 North 10th St.
San Jose, CA 95112
Call Now Fast Service
Monday - Friday
8:00am - 5:00pm

Experts in Installation, Repair, and Service

Heating, Ventilation, and AC. All major brands.

Air Conditioning & Heating Services for the South Bay Area

Here at Sandium heating & air conditioning, you'll find a crew of world class professionals with one particular target in mind, your complete and full satisfaction. Our promise to you - “Sandium Heating & Air will provide you with accurate advice, up-front pricing and will give you quality work and and we'll guarantee it!

Why Choose Sandium?

Sandium Heating and Air Conditioning service is not your average HVAC company. As a Heating & A/C company that is certified to operate in all the south bay area, we serve more homes with better services than those other corporate guys. Our friendly techs are highly trained, NATE certified, and very professional. We're a Factory Authorized Carrier Brand Dealer which are the best products on the market and it does not stop there! We also offer affordable products, Hero energy financing, and FREE estimates!  Choose Sandium Heating and Air Conditioning for all your HVAC needs at home and for your office!


We deliver on our promises and satisfy all of our obligations. Each of our installation directors work in conjunction with builders and clients to make certain the job is done right and that each of the customer’s needs are met.


Integrity and ethics are uncompromising, as is our dedication to the constant and never ending improvement of our services for the best interests of our customers.

Our Customers Come First

You’ll be hard-pressed to find another company that has the confidence in itself to make you these same promises!


Angie's List Super Service Award, PG & E Customer Satisfaction Award, Carrier's President's Award, Google & Yelp 5 Star Customer Rating, BBB A+ and More!

Our Affiliations









Hear what our customers have to say!

I am very happy with the HVAC work done by Sandium and the team of Jesus and Carlos. They were very respectful, honest and left my home in immaculate condition. Jesus is very honest and thorough and explained everything that was occurring. Tyler Lewis came out to give the estimate, which was thorough and reasonable. Jesus noted some gas and electric issues that were confirmed by other professionals.”

Linda B.

“Amazing! To say the least. Tyler Lewis and the team that he brought into my house for HVAC project did an incredible job! The installation team - Jesus, Jose and Javier are very friendly respectful and professional guys. By the end of each of five days of the project they cleaned and vacuumed so well that the job site area looked actually cleaner then the rest of the house. :-)”

Anna R.

Finally an HVAC company that wants to do things right! We put an entirely new HVAC system in only two years ago (with another company). It never functioned right and had to have the AC recharged 3 times in 24 months (again the other company). I was sick of it, so I called Sandium and Jake came out and thoroughly inspected the system. He is the first person to figure out the issue was not a loss of refrigerant, but a duct issue as well as insulation over the heat exchanger. Thank you Sandium

Alex M.

I had a very good experience from estimation through final inspection. They showed up on time(estimator and install crew), were price competitive, offered alternatives, filed permits, performed excellent installation (above and beyond what was expected), and arranged for our city inspection. They care about there reputation and were very responsive.

Grant K.

HVAC San Jose | Santa Clara Heating and Cooling | Air Conditioning Service near me Sunnyvale


This review is way overdue.

Great professional service ! Left me impressed. The overall process was smooth and efficient.

Got a quote from Michael – who is the owner – he explained the job and since he was an engineer with Trane for 12+ years, I could trust his judgement on size of AC needed for our home. The quote provided was very reasonable and after seeing 8 – 10 quotes over couple of years, we decided to go with them.
Gaurav A.
Milpitas, CA