Grennan Construction

Grennan Construction is a family-owned and operated Exterior Remodeling company specializing in roofing and siding, based in Pontiac, MI. They take an unbiased, consultative approach to help homeowners understand the important details of making a successful construction investment. Homeowners praise their attention to detail, responsiveness, and end-to-end craftsmanship. They have successfully completed projects, including residing houses in Hardie Board, building front porches, and replacing bay windows, even in challenging weather conditions. With a focus on education and collaboration, Grennan Construction provides peace of mind and earns high recommendations from satisfied customers.