24/7 Emergency Service Available
About Cornerstone Mechanical
At Cornerstone Mechanical LLC
Trusted Heating & Cooling Experts for 24+ Years
Owned and operated by Justin and Dara Chick, we are a local, family-run business dedicated to serving our neighbors in South Lyon and the surrounding Michigan communities. When you call us, you aren’t just getting a technician—you’re getting a partner who cares about your home as much as you do.
At Cornerstone Mechanical LLC, we believe that every home deserves a solid foundation of comfort and safety. Our team has been the trusted choice for Michigan homeowners for over two decades, providing high-quality, reliable mechanical services that stand the test of time.
Emergency Readiness: We know that HVAC issues don’t follow a 9-to-5 schedule. That’s why we offer 24/7 Emergency Service to keep your family safe.
As an Authorized Airquest & American Standard Dealer, we provide top-tier equipment installations, and we service and provide warranty work for other all major brands, including Carrier, Lennox, and more.
- Michigan Mechanical License
- NCI System Performance & Air Balancing
- EPA 608 Certified
- Duct Optimization Specialists
At Cornerstone Mechanical
Local Family-Owned Heating & Cooling Experts
Our Values
These core values guide everything we do:
Integrity
Honest recommendations, upfront pricing, and zero hidden fees.
Reliability
We show up on time, communicate clearly, and finish on schedule.
Quality Workmanship
We focus on doing the job right — the first time.
Continuous Improvement
We stay updated with the latest HVAC technologies and industry standards.
JUSTIN REPAIRS A FURNACE FAN
Our Story
With 24+ years of hands-on experience, our founder started Cornerstone Mechanical after working with major HVAC companies across Michigan. Over the years, we’ve repaired, installed, and serviced thousands of furnaces, air conditioners, water heaters, and indoor air quality systems.
We’ve earned our reputation through:
- Hard work
- Consistent service
- Long-term customer relationships
- Technical expertise across all major HVAC brands
Today, Cornerstone Mechanical LLC continues to grow — but our commitment to quality and family-style service remains the same.
Why Choose Cornerstone Mechanical?
Providing the Foundation and More, For Your Heating and Cooling Needs
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