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
We have several solutions that will help you to avoid a costly tear-off, and forever stop corrosion. 40 years and going strong. We've been a spray foam insulation contractor, making your building or home energy efficient since 1978. You can get a free, no-obligation inspection and quote! At Energy Shield Inc., we're dedicated to providing you the highest