Cost Effective

With innovative solutions and straightforward pricing, you only pay for what you need.

Quality Guaranteed

We do the job right the first time, every time, and offer a 100% satisfaction guarantee.

Experienced Team

Our experienced HVAC technicians advise you in line with your long-term best interests.

Keystone Mechanical

San Jose’s HVAC Company

Since 2017, Keystone Mechanical has served the greater San Jose area with residential and commercial HVAC services including installation, maintenance, and repair. Our cost-effective solutions, top-quality work, and experienced team are just a few of the reasons why San Jose homeowners and businesses prefer Keystone Mechanical.

HVAC Services

Greater San Jose Area


HVAC Services

Keep your home comfortable all year around with our comprehensive, residential HVAC services including installation, maintenance, and repair for your furnace and air conditioning. Friendly service and straightforward pricing are just a few of the reasons why people prefer Keystone.


HVAC Services

Whether you’re looking to proactively maintain your air conditioning units, get emergency heating repair, or improve your indoor air quality with a new ventilation system, you can rely on our experienced HVAC technicians to do the job right the first time, every time. No job is too big or too small.

5 Stars Icon
“Keystone is super responsive, reliable, punctual, and very competent.”
Arif A.
“Super impressed with integrity and focus on making a customer happy.”
James K.
“Quality service at competitive rates. Recommend!”
Seb L.
“Keystone deserves more than 5 stars.”
Mary T.
“Do yourself a favor and use Keystone Mechanical.”
James K.
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Contact Us

To Request a Quote

For an honest, straightforward quote from our experienced team, contact us today.