• 120 South Wineville Avenue, Ontario, CA 91761
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Call Your Local Pros Today! (909) 390-9944

Our Company

Sierra Insulation Contractors, Inc. was established in 1997 by Peter Dittemore.

Sierra Insulation Contractors Inc. –Focused on our customers since January 1997. We strive to bring our customers value while keeping our ethical standards high. We know that our reputation reflects on our customer’s reputation.

Pete Dittemore, General Manager, stays involved in organizations that make a difference in our industry. In 2007 Pete served as the president of the ICAA (Insulation Contractors of America) and has been active on their Board of Directors from 2003 to 2015.
Over the years the company has built solid relationships with contractors working on such projects as, Regional shopping centers, Theaters, Major Distribution warehouses, Manufacturing Plants and other various types of commercial and industrial projects.

Commercial Insulation Products We Install

Our insulation team adds energy efficiency, comfort & value to commercial & industrial buildings.

Rigid Board

Sierra Insulation Contractors is proud to be a leading installer of rigid foam insulation.

Radiant Barrier

We can help keep your building cooler and more comfortable with a radiant barrier.

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