OUR TEAM SPECIALIZES IN ROOFING, SIDING, AND EXTERIOR REMODELING

IMPROVING YOUR HOME IS OUR #1 PRIORITY

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.


A MESSAGE FROM FRED, OUR OWNER:

OUR SERVICES

Grennan Construction has proven to be a leader 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.

WE PROVIDE THE BEST SERVICE IN THE INDUSTRY

CALL TODAY FOR A FREE ESTIMATE!

OUR RECENT PROJECTS

Exterior Remodel with new roofing, siding, and gutters. Oxford, Michigan.
Exterior remodel 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
Better Business Bureau vector logo

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.”

MEET OUR TEAM

Employees of our licensed and insured 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


Justin Korpal, Sales Consultant
JUSTIN KORPAL

Sales Consultant


Brandon LaFountain, Assistant Project Manager
BRANDON LaFOUNTAIN

Assistant Project Manager