OAKLAND COUNTY ROOFING AND SIDING CONTRACTOR

OUR TEAM SPECIALIZES IN RESIDENTIAL ROOFING AND SIDING

ABOUT US

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.


A MESSAGE FROM FRED, OUR OWNER:


Register Today to Fight Suicide

Out of the Darkness Walks

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.


OUR SERVICES

Grennan Construction has proven to be the leader in Oakland County roofing and siding, serving with integrity while offering a range of services that meet the needs of our customers.

ROOFING

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

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, and the experts at Grennan Construction will consult with you to determine what best matches your tastes and your home’s needs.

WINDOWS

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.

GUTTERS

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.

PAINTING

A fresh application of paint applied by professionals is one of the best ways to give a new life to your home’s look. Whether you want a simple touch-up or a completely new look, Grennan Construction can handle your needs with ease.

MASONRY

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.

HAIL AND WIND DAMAGE

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.

REPAIR

Have you had something go wrong with your home and aren’t sure where to turn? Grennan Construction is here to help. In recent years, we have expanded our services to include the repair and restoration of your home. We offer expert construction, inspection, and repair of any roofing, siding, drywall, or brick structure in your home.

OUR ROOFING AND SIDING BLOG

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

Roofing Cost Calculator
HOW MUCH DOES A NEW ROOF COST?
Are you wondering, how much does a new roof cost? Replacing your roof may seem like a straightforward process, but countless factors affect the cost.
Homeownder creating a savings plan for a new roof
HOW TO PAY FOR A NEW ROOF
It’s easy to think a roof replacement is out of the budget. This article shares tips, ideas, and options on how to pay for a new roof and save money.
Residential roofing contractor complete new roof after photo
HOW OFTEN DOES A ROOF NEED TO BE REPLACED?
Are you wondering, how often does a roof need to be replaced? Determining when exactly you need a replacement depends on a lot of factors.

WE PROVIDE THE BEST SERVICE IN THE INDUSTRY

CALL TODAY FOR A FREE ESTIMATE!

OAKLAND COUNTY ROOFING AND SIDING CONTRACTOR

Exterior Remodel with new roofing, siding, and gutters. Oxford, Michigan.
Residential siding job with new James Hardie Fiber Cement Siding and Gutters. Blue farmhouse in Milford, Michigan.
Exterior remodel with roofing, siding, front porch addition, James Hardie Fiber Cement Siding, stone, and windows. West Bloomfield, Michigan.
Exterior remodeling project including CertainTeed siding, and Anderson Windows. Royal Oak, Michigan.
Exterior remodeling project including James Hardie siding. Canton, Michigan.
Arial view of Clarkston church with new roof completed by Grennan Construction.
Angies List Super Service Award Vector logo
James Hardie Elite Preferred Contractor Alliance logo.
CertainTeed Select ShingleMaster vector logo
Grennan Construction BBB Business Review

WE ARE A TOP SERVICE PROVIDER

CONTACT US NOW TO LEARN HOW WE CAN HELP YOU WITH YOUR ROOFING, SIDING, AND EXTERIOR REMODELING NEEDS.

WHAT OUR SATISFIED CUSTOMERS SAY

KIMBERLY JOHNSON

“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.”

TYLER EASH

“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!”

JERRY GRUBB

“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.”

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MEET OUR TEAM

Employees of our licensed and insured roofing and siding company will treat you like family – providing a free estimate, and delivering prompt, courteous, and honest service.

Fred Grennan, Owner
FRED GRENNAN

Owner


Leslie Leaym, Office Manager
LESLIE LEAYM

Office Manager


Mike Grennan, Project Coordinator
MIKE GRENNAN

Project Coordinator


Mike Granger Field Technician Supervisor headshot
MIKE GRANGER

Field Technician Supervisor


Justin Korpal, Sales Consultant
JUSTIN KORPAL

Sales Consultant


Brandon LaFountain, Assistant Project Manager
BRANDON LaFOUNTAIN

Assistant Project Manager