AIRSTAR Mechanical
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Welcome to the AIRSTAR Mechanical web site!

If you value honesty, then call us now. We are a family owned Solar Electrical, Heating, Air Conditioning, Ventilation, and Refrigeration Company. We specialize in quality installation and repair work, using only the highest rated equipment and supplies. We are a proud dealer of American Standard Home Comfort Products.


Airstar Mechanical is owned by John Foehr. With his complete commitment to honesty and integrity, and over 20 years experience, Airstar is well versed in local and national code, System Design, Permit requirements, and problem solving. We continually go the extra mile to provide perfect installations at a reasonable cost. Our trucks are fully stocked, and repairs for existing clients are usually performed within 24 hours. We serve residential and business customers in Contra Costa, Alameda, and surrounding Counties

We offer extended warranties on installations to provide peace of mind and no surprises for the family budget.

Let us help you with all of your comfort needs!

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Typical Furnace Installation

Airstar Mechanical 
PO Box 575
Knightsen, CA 94548

Phone: (925) 634-0488

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