ABOUT US

GRENNAN CONSTRUCTION SUPPORTS OUR COMMUNITY

We feel strongly about supporting our community and causes near and dear to our hearts.

Vector logo for Habitat for Humanity

Habitat for Humanity

Vector logo for American Foundation for Suicide Prevention

American Foundation for

Suicide Prevention

.

Vector logo for American Brain Tumor Association

American Brain Tumor Association

Vector logo for volunteers assisting the disabled

Volunteers Assisting the Disabled (VAD)

Waterford Christmas in Action vector logo

Waterford Christmas In Action

Lumind IDSC Down Syndrome Foundation vector logo

LuMind Foundation

OUR EXPERT TEAM

Trust. Integrity. Professionalism. Quality.

 

As a family-owned and operated company servicing Oakland County and the surrounding areas, Grennan Construction has earned a reputation for honesty and integrity. Fair business practices, quality workmanship, and superior customer service are some of the key reasons we stand apart from other companies.


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, which allows us to offer the solution that is best suited for you.

Exterior remodel with siding, roofing, and windows.

WHAT WE OFFER

Employees of our licensed and insured company will treat you like family – providing a free estimate and delivering prompt, courteous, and honest service. We will take pride in protecting your property – treating it as if it was our own. We are professional, neat, and efficient. We will follow-up your project with a comprehensive customer satisfaction survey to ensure that we fulfilled every commitment and that you are 100% satisfied with the end result.

Schedule an appointment with one of our project consultants to evaluate your situation and answer any questions you may have. Our highly-trained staff will locate and repair the most difficult leaks, install a complete roof, and meet all of your siding, window, insulation, gutter, and drywall needs. We require no deposit (on most projects), and no payment is due until your project is completed and you are satisfied! We guarantee all materials and the quality of our work.

Vector Dark Blue eye with bulls eye in center.
OUR VISION

To be the premier construction company in our market, providing the highest quality and most cost-effective services, while earning the customer loyalty that ensures the longevity of our company through repeat and referral business.

Vector Dark Blue bulls eye with arrow.
OUR MISSION

To help home and business owners make educated decisions regarding their construction projects and to maximize the value of those projects by completing them with trust, integrity, professionalism, and quality, while delivering exceptional customer service.

WE PROVIDE THE BEST SERVICE IN THE INDUSTRY

CALL TODAY FOR A FREE ESTIMATE!

GET TO KNOW

FRED GRENNAN, OWNER

Fred started in the construction industry in 1998 as a subcontractor. Unlike most subcontractors, however, Fred wasn’t just a guy with tools and a truck. His tremendous work ethic and dedication to providing top-notch quality and customer service set him apart. Fred quickly earned the high praises of homeowners, his crew, and other industry professionals. These praises, and the steadfast guidance of his father, Phil, convinced Fred he was ready to take the leap from subcontractor to contractor.

With over 17 years of experience, Fred Grennan has redefined what it means to be a contractor in the construction industry. The owner and operator of Grennan Construction has built his business by building relationships. Be it a customer, employee, or product representative, Fred takes the time to get to know everyone. He strives to find the best possible solution for all parties involved, so win-win situations are always Fred’s goal. Customers often comment on Fred’s trustworthiness, professionalism, and his natural ability to treat everyone like family.

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


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.

CONTACT US

REQUEST A FREE QUOTE

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