Jonathan E.

David Renard

It is hard to find a good, responsive engineer.

From beginning of quote to approval all through inspections, Yisilayin and zenith engineers was phenomenal!
Also wanted to mention Irina the office manager, Irina was great, she coordinated everything perfectly, thank you Irina!

Every small obstacle on the way was solved and corrected on the same day!

The effort they make to make sure their clients are satisfied is definitely the kind of customer service you are looking for when hiring an engineer.

Thank you zenith, will use you guys in the future again for sure!

Highly recommended

Jonathan E. – Newark, CA