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. 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.
Call us today to schedule a free estimate with Grennan Construction, the leading Oakland County roofing contractor. 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.
Services
Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.
Since 1988 we have been serving our community by providing the best residential roofing and siding services in Michigan.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
As a family-owned and operated residential roofing and siding company servicing Oakland County, Michigan and the surrounding areas, Grennan Construction has earned a reputation for honesty and integrity.
Since 1988 we have been serving our community by providing the best residential roofing and siding services in Michigan.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
As a family-owned and operated residential roofing and siding company servicing Oakland County, Michigan and the surrounding areas, Grennan Construction has earned a reputation for honesty and integrity.
An employee of our licensed and insured company will be in touch to discuss your free estimate.
Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.
Since 1988 we have been serving our community by providing the best roofing and siding services in Oakland County.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
I had a masonry job on my late 1920s home and Grennan Construction did an absolutely outstanding job.
Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.
Since 1988 we have been serving our community by providing the best roofing and siding services in Oakland County.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
I had a masonry job on my late 1920s home and Grennan Construction did an absolutely outstanding job.
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!
Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.
Since 1988 we have been serving our community by providing the best roofing and siding services in Oakland County.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
Fred Grennan and his crew have replaced several roofs for my husband and I over the years and sided our current home from 1902.
I would definitely use them again in the future!
Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.
Since 1988 we have been serving our community by providing the best roofing and siding services in Oakland County.
Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.
Fred Grennan and his crew have replaced several roofs for my husband and I over the years and sided our current home from 1902.
We proudly offer a wide range of residential roofing and siding services to Oakland County and the surrounding Southeast Michigan areas.
We are a full-service, licensed, and insured residential roofing and siding company serving the Southeast Michigan area for over 20 years.
Let our trained residential roofing and siding technicians inspect your roof to give you the answers.
As a fully licensed, bonded, and insured company, Grennan Construction is here to take care of all your residential roofing and siding requirements.
We are a full-service, licensed, and insured residential roofing and siding company serving the Southeast Michigan area for over 20 years.
Let our trained residential roofing and siding technicians inspect your roof to give you the answers.
As a fully licensed, bonded, and insured company, Grennan Construction is here to take care of all your residential roofing and siding requirements.
Our team services Oakland County and the surrounding areas, providing residential roofing, and siding services.
As exterior remodeling experts, we install high quality, long-lasting roofs.
Grennan Construction is the leading residential roofing contractor in Oakland County, Michigan, serving the community for over 20 years.
We are home to a team of dedicated, professional, roofing installers, that strive for excellence and providing our customers with the best service possible.
When a roof can account for as much as 40% of the average home's exterior, many factors weigh into the choice of materials.
As exterior remodeling experts, we install high quality, long-lasting roofs.
Grennan Construction is the leading residential roofing contractor in Oakland County, Michigan, serving the community for over 20 years.
We are home to a team of dedicated, professional, roofing installers, that strive for excellence and providing our customers with the best service possible.
When a roof can account for as much as 40% of the average home's exterior, many factors weigh into the choice of materials.
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