As a family-owned and operated company servicing Oakland County and the surrounding areas, Grennan Construction has earned a reputation for honesty and integrity. Founded in 1998 by Fred and Phil Grennan, Grennan Construction takes great pride in providing what many people feel is the best customer service in the business. We will take the time to get to know you and what you want and need in a home improvement project – allowing us to offer the solution that is best suited for you. Call us today to schedule a free estimate with Grennan Construction, the leading Oakland County roofing contractor.
A MESSAGE FROM FRED, OUR OWNER:
Out of the Darkness Walks
The Community Walks, held in hundreds of cities across the country, are the core of the Out of the Darkness movement, which began in 2004.
These events give people the courage to open up about their own connections to the cause, and a platform to create a culture that’s smarter about mental health.
Friends, family members, neighbors and coworkers walk side-by-side, supporting each other and in memory of those we’ve lost.
OUR ROOFING AND SIDING BLOG
At Grennan Construction we believe in providing consumers with the information, skills, and abilities needed to become more informed homeowners.
“Did a great job helping devise solutions for problems with a 98-year-old historic home. Carpentry & paint skills excellent! Good communicators. Always knew what to expect.”
“I had a masonry job on my late 1920s home and Grennan Construction did an absolutely outstanding job. I would definitely use them again in the future!”
“I’ve used Grennan Construction for repairs and upgrades to my home and business. Fred and his crew have always done a great job at a reasonable price.”
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Field Technician Supervisor
Assistant Project Manager