Happy Independence Day from Grennan Construction!

We hope you and your family had a wonderful holiday full of fun, fireworks, and barbeque.

With summer now in full swing, we know that many families are getting busy with warm-weather activities and vacations.

It's easy to forget about the coming winter. Ensuring your home is prepared for the cold weather, snow, and ice is essential before the change of season. We at Grennan Construction would like to give a friendly reminder not to wait until it's too late to ensure the safety and integrity of your home.
Contact us today to schedule your free roof inspection!
June Rain

2021 proved to be one of Metro Detroit's wettest Junes in history.
How did your home stand up to the consistent rains we faced during June?

As a fully licensed, bonded, and insured company serving the Southeast Michigan area for over 20 years, Grennan Construction is here to take care of all your residential roofing and siding requirements. We assure you that once hired, we will take care of all your needs without you having to worry about a thing!

If you suspect there is damage to your roof, please give us a call, and we would be happy to help.
July's Blog Post
What is James Hardie Siding?

Interested in learning why James Hardie is the worldwide leader in siding?
“We must be free not because we claim freedom, but because we practice it.”

— William Faulkner

Testimonials From our Satisfied Customers
"We had an excellent experience with Grennan. They spent a significant amount of time assessing our job and providing options. The work was done in a timely, efficient manner and the crews were professional. We were especially impressed with our siding and trim crew who did an impeccable job. Fred, Mike and Brandon checked in often during the work and were in regular communication and always available to answer any questions or take care of any issues. We would highly recommend Grennan Construction!"

June 2, 2021
"Worked directly with Fred Grennan, the owner. He was very thorough and professional. Spent time inspecting the roof and the attic space. Explained in detail the job to be done. His presentation was definitely not a hard sell job, nor did he pile on a lot of costly extras. I felt that the cost of the job was very reasonable. He was able to schedule the job for the following week, which was great timing. The scheduled crew was on time first thing Monday morning, they brought enough guys to ensure that the job got done in one day. The crew leader touched base with me throughout the day, to make sure that specifics of the job were done as requested. The roof looks great. Grennan's representative came out the following day to inspect the job and once again sweep the yard for nails. Fred came out the next day to follow up with me directly. He has been great to work with, and in the future I'll definitely suggest his company to friends and neighbors."

March 26, 2021
We are actively scheduling for 2021. If you have any questions or would like to request a free quote on a project, don't hesitate to contact us. We're always happy to help.

Fred Grennan and the Grennan Construction Family