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Specializing in Roofing, Siding, Windows, Gutters and Blown-In Insulation

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Customer References

"...the professionalism displayed by you and your crew was, in my opinion, outstanding.
We have had numerous compliments from our neighbors..”
  -Richard Barron, Pontiac, MI

ANOTHER SATISFIED CUSTOMER! See what our customers love about us!

Consumer Education

Learn the 7 Questions to Ask Before Hiring a Contractor

Finding the right contractor is probably the single most important decision you will have to make regarding your home improvement project – even more so than the design itself. The best design in the world will only come to fruition and provide satisfaction if it is built properly!

Many contractors will not volunteer the kind of information that you need to make the right decision – especially if their answers are not what you want to hear! Make sure you read this report to learn not only the right questions to ask, but also the right answers to receive.

>> Seven Questions to Ask


How to Avoid Being Scammed

Have you ever been scammed by a contractor? We certainly hope not. Here is an article that can help you remain "un-scammed".

>> How to Avoid Being Scammed


Remodeling’s Payoff

Just how worthwhile is putting on a new roof or new siding? Is it possible to recoup your investment? In one word – "absolutely!" Read this report to see just how worthwhile it is.

>> View the report

Grennan Construction & Grennan Corp. -- 2582 Edgevale Drive, Waterford, MI 48329
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