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Join over 3.5K Oakland County residents by signing up for our informative, monthly construction 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.


Click on one of the links below to view our past newsletters

We provide valuable homeowner tips and advice in each construction newsletter, along with special deals and insights about our company, Grennan Construction.

June 2022 — Prices are rising again. Book now to lock in current rates.

May 2022 — Happy Mother's Day from Grennan Construction!

May 2022 -— Best of the Best Announcement

April 2022 — Happy Easter from Grennan Construction! : Spring is here!

March 2022 — The votes are in! : A huge thank you to our wonderful customers!

February 2022 — Help support local business by voting in Detroits Best of the Best: Industry Update — Increased Roofing Prices In 2022

January 2022 — Happy New Year from Grennan Construction!: Industry Update — Siding Prices Are Projected To Increase In 2022

December 2021 — Happy Holidays and a Grennan Family Tradition

November 2021 — Can you put on a new roof in the winter?

October 2021 — Ready for Your Annual Fall Gutter Cleanup?

September 2021 — Now, more than ever, it’s important to be there for one another and take steps to safeguard our mental health and prevent suicide.

August 2021 — What to do after storm damage?

July 2021 — Happy Independence Day! – Schedule Your Homes Inspection Before it's Too Late

June 2021 — Homeowner Education – Announcing The Launch of Our New Blog

May 2021 — Does your home have proper ventilation?

April 2021 — April Showers Bring May Flowers and an Increase in Roofing Materials Cost

March 2021 — Your Spring Home Maintenance Checklist

February 2021 — Protect Your Home with James Hardie Siding

January 2021 — Happy New Year and Winter Home Maintenance

December 2020 — Happy Holidays and A Grennan Family Tradition

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At Grennan Construction we believe in providing consumers with the information, skills, and abilities needed to become more informed homeowners.

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"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."