GRENNAN CONSTRUCTION — RESIDENTIAL ROOFING MICHIGAN— SUPPORTS OUR COMMUNITY

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

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Habitat for Humanity

Vector logo for American Foundation for Suicide Prevention

American Foundation for

Suicide Prevention

.

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American Brain Tumor Association

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Volunteers Assisting the Disabled (VAD)

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Waterford Christmas In Action

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LuMind Foundation

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Join over 3.5K Oakland County residents by signing up for our informative, monthly newsletter.

Since 1988 we have been serving our community by providing the best residential roofing and siding services in Michigan. Today, sign up to receive monthly updates, home maintenance advice, and special deals available only through our email newsletter.

OUR EXPERT TEAM

Trust. Integrity. Professionalism. Quality.

 

As a family-owned and operated residential roofing and siding company servicing Oakland County, Michigan 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.

Residential Roofing Michigan

WHAT WE OFFER

Employees of our licensed and insured residential roofing and siding 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 residential roofing and siding 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 to represent the vision statement of our roofing and siding company,.

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 to represent the mission statement of our roofing and siding company.

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!

WHAT SETS US APART FROM OUR COMPETITORS

We are a full-service, licensed, and insured residential roofing and siding company serving the South East Michigan area for over 20 years. Let our trained residential roofing and siding technicians inspect your roof to give you the answers. As a fully licensed, bonded, and insured company, Grennan Construction is here to take care of all your residential roofing and siding requirements. We assure you that once hired, we will take care of all your needs without you having to worry about a thing! Even in today’s extremely competitive market, Grennan Construction has come out at the top for providing our clients with excellent services at the most reasonable prices.

We believe in maintaining the highest standards of quality without ever compromising on the services we provide. At Grennan Construction, we understand the role good roofing and siding play in any building’s structural integrity, and we want our customers to have the best homes in all of South East Michigan. Our workers have years of experience and are skilled in using various materials and the latest technology to make your home safe, stable, and attractive.

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 Michigan based residential 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


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.”

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 RESIDENTIAL ROOFING AND SIDING NEEDS.

CONTACT US

Request your free roofing estimate to discover why we are the leading residential roofing and siding company in Southeast Michigan.

REQUEST A FREE ESTIMATE

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