About John Allan Custom Home Builders | John Allan Custom Builders

Gregory Allan Karels


Gregory Karels has spent over 10 years trying to find the most rewarding way to provide clients with a process and product that will be matched by few. With experience in custom homes from 2500 square feet to over 20,000, Gregory has seen more applications and quality ways of doing things than most of his counterparts thereby providing Gregory a source of great pride from every home he builds. Loving husband to wife Amy and father of three active boys, Greg spends his free time enjoying his family, the outdoors, exploring other homes and communities to ensure his commitment to always increase his knowledge of the custom home building industry.

"We had a fantastic experience during the construction of our custom home because Greg was able to build our trust as he built our home. Building a custom home is a huge undertaking and throughout every phase Greg answered our questions and walked us through the entire process. We know that our home was built with quality products and workmanship at every stage because we saw it with our own eyes. The quality that Greg promised from the beginning was what he delivered. Plus, he kept the construction of our home on schedule and within our budget. We love our new home, but if we ever decide to build again we will definitely be calling Greg at John Allan Custom Builders.

Jon and Leah Johnson
Houston, TX