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.
No single home improvement project has such a significant impact on your home as installing a new roof. Regardless of your roofing material, Grennan Construction has the product line and expertise to complete your job correctly, on time, and within your budget. You can rest assured that not only will your home look beautiful, but it will be fully protected from the elements and will likely increase in value.
Siding does more than simply provide beauty and value to your home. Your choice of siding also greatly impacts your home’s ability to protect you from the elements and unwanted pests. Many options are available, including James Hardie Cement Board products, and vinyl siding by Certainteed. The experts at Grennan Construction will consult with you to determine what best matches your tastes and your home’s needs.
Let Grennan Construction help cut your energy costs while increasing both your curbside appeal and the value of your home. Some companies might try to sell you only one brand of windows. At Grennan, we understand each home is unique. We offer many quality window brands and styles to choose from. Our experts have over 12 years of experience helping homeowners find the perfect solution for their properties. All of our window installation projects are backed by a full manufacturer’s warranty.
Grennan Construction has found Leaf Relief by PlyGem to be the most effective gutter protection system on the market. Leaf Relief is more effective than other types of gutter protection at keeping natural debris, such as leaves, twigs, and pine needles, from blocking your gutters. We have not only found it to be the most effective gutter protection but also the most invisible, as it lays flat and fits snugly on top of your gutter.
Hail has the potential to cause hairline cracks and punctures in shingles, which can lead to a devastating outcome, including delamination. If not addressed properly, these issues can cause problems with the structure and soundness of your home. Grennan Construction specializes in the repair, restoration, and/or replacement of all types of exterior products damaged by Michigan weather.
For expert brick work and tuck pointing anywhere in, on, or around your home, depend on Grennan Construction. In recent years, we have expanded our services to include concrete repair and replacement, stucco repairs, cultured stone veneer, and many other services similarly related to property repair and restoration. We offer expert construction, inspection, and repair of any brick chimney, brick fireplace, brick wall, or other brick structure.
Financing Also AvailableHearth Hearth is one of the most reputable lenders in the home improvement industry and we’re proud to be partnering with them. Applying for financial assistance has never been easier — get your application started today!
Grennan Construction is 1 of 7 James Hardie Elite Preferred Contractors in the entire State of Michigan. It’s your future. Build it with the best. James Hardie makes the world’s highest-performance fiber cement siding, trim, backer board and more.
As a family-owned and operated company servicing Oakland County and the surrounding areas, Grennan Construction has earned a reputation for honesty and integrity.
Our experts have over 12 years of experience helping homeowners find the best solution for their properties.
We 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.
Grennan Construction has found Leaf Relief by PlyGem to be the most effective gutter protection system on the market.
All of our window installation projects are backed by a full manufacturer’s warranty.
Grennan Construction is 1 of 7 James Hardie Elite Preferred Contractors in the entire State of Michigan.
Hearth Hearth is one of the most reputable lenders in the home improvement industry.