About Us

About Us
At Firm Foundation, our name and our mission are inspired by Matthew 7:24–27, a passage that reminds us of the wisdom in building on solid ground. It’s not just a guiding verse for our business but a reflection of how we live and serve: with integrity, intention, and care.
We’re Jen and Ken Mertz, a husband-and-wife team originally from New Jersey. After years of investing in, renovating, and purchasing homes for our own family, we now proudly call Arizona’s Valley our home—and the heart of our business.
With a background in home renovation, Ken brings a trained eye for the details that matter most—the essential parts of a home’s structure and systems that help ensure comfort, safety, and reliability. Jen’s experience in project management ensures each inspection is thorough, well-documented, and clearly communicated so you’re never left guessing.
At Firm Foundation, we understand that buying a home is one of life’s biggest decisions. Our goal is simple: to give our clients the peace of mind they deserve through honest, comprehensive, and reliable inspections. We don’t just inspect homes—we protect the people who live in them.
Let our foundation help strengthen yours.
What We Stand For
high standards
From communication to inspection reports, we strive for professionalism at every step.
integrity first
We provide honest, unbiased inspections with the highest ethical standards.
attention to detail
We treat each inspection as if it were for our own home, leaving nothing overlooked.
client dedication
Every decision we make is guided by what’s in the best interest of our clients.
Our Mission
Our mission is to provide thorough, honest, and detailed home inspections that empower our clients to make confident decisions. We are committed to delivering clear communication, professional expertise, and genuine care, treating every home as if it were our own.
Our Vision
Our vision is to be the most trusted home inspection company in the Phoenix area—known not only for our accuracy and attention to detail, but also for our compassion and dedication to protecting families, investments, and futures.