Your Trusted Partner for Siding, Roofing, Windows, and Gutters in Troy, Michigan

WE ARE A JAMES HARDIE ELITE PREFERRED CONRTACTOR

Why Choose Grennan Construction for Your Troy Roofing and Siding Contractor?

When it comes to enhancing and protecting your home, choosing the right contractor is crucial. Grennan Construction offers unparalleled expertise and dependable service in siding, roofing, windows, and gutters, making us the top choice for homeowners in Troy, Michigan. Here's why you should consider us for your next home improvement project.


emblem for The Oakland Press Best of the Best Readers Choice Awards for 2023 - 1st Place

The Results are in!

We are excited to announce that we have been named Detroit's Best of the Best for siding, roofing, and windows!

Thank you to all of our wonderful customers and community members who took the time to vote for us. We appreciate your support.


We pride ourselves on offering the highest quality of service and look forward to many more years of serving Troy Michigan.


Troy Roofing and Siding Contractor

Local Experience

As a local business, we have a deep understanding of Troy's unique climate and architectural styles. Our extensive experience in the area has equipped us with the knowledge to recommend the best materials and solutions for your home's exterior needs. Whether you’re looking for durability against Troy’s snowy winters or style to stand out in your neighborhood, we have you covered.

Quality and Craftsmanship

At Grennan Construction, we don’t just build – we create. Our commitment to quality and craftsmanship is evident in every project we undertake. We use only the highest quality materials and the latest techniques to ensure your home not only looks great but also has lasting value.

Customer-Centric Approach

We pride ourselves on a straightforward, customer-centric approach. From the initial consultation to the final inspection, your satisfaction is our priority. Our team is always available to answer your questions and provide updates throughout the project. We believe in transparency and honesty – no hidden fees, no surprises.

Community Involvement

As active members of the Troy community, we are committed to more than just business. We participate in and sponsor local events and initiatives, helping to build a stronger, more connected community. Choosing us means you're not just hiring a contractor; you're supporting a local business that gives back to your community.

ABOUT US

Troy Roofing and Siding Contractor

As a family-owned and operated company servicing Troy Michigan 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 Troy Michigan roofing contractor.


A MESSAGE FROM FRED, OUR OWNER:

OUR SERVICES

Troy Roofing and Siding Contractor

Grennan Construction has proven to be the lead Troy Michigan roofing and siding contractor, 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 in Troy, Michigan 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, 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 in Troy.

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.

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.

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.

Grennan Construction is 1 of 7 James Hardie Elite Preferred Contractors in the entire State of Michigan.

James Hardie Elite Preferred Contractor Alliance logo.

SIDING FOR EVERY HOME

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 exterior remodeling experts, we install all types of siding including wood, aluminum, vinyl, and fiber-cement. There are many materials and brands available for cladding your home, and we know choosing the right one can be confusing.

That’s why we go through all of the options with you, so you can decide on the best material for your home and budget. No matter what type of siding you choose, we’ll install it to the strictest manufacturer specifications.

Sometimes our customers ask which product we’d personally choose for our own homes. The product we recommend most is James Hardie fiber-cement siding, and here’s why...

Troy Roofing and Siding Contractor


In order to be recognized as an Elite Preferred contractor, companies must meet the following expectations:

Complete a certain amount of James Hardie Resides each calendar year.

Comply with installation best practices & pass regular and random installation audits.

Have a satisfactory credit report and record with the BBB or other credited agency. 

Pass a background check with at least 6 past clients, be state licensed/fully bonded, and carry liability and worker’s compensation insurance.

TROY, MICHIGAN ROOFING AND SIDING CONTRACTOR

Make Your Home Beautiful!

Angi super service award for badge 2021.
James Hardie Elite Preferred Contractor Alliance logo.
CertainTeed Select ShingleMaster vector logo
Grennan Construction BBB Business Review
Detroit Best of the Best award for roofing, siding, and windows.

WE ARE A TOP SERVICE PROVIDER

CONTACT US NOW TO LEARN HOW WE CAN HELP YOU WITH YOUR ROOFING, SIDING, AND EXTERIOR REMODELING NEEDS. WE ARE A JAMES HARDIE ELITE PREFERRED CONTRACTOR SERVING TROY Michigan.


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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


Justin Korpal, Sales Consultant
JUSTIN KORPAL

Sales Consultant


Brandon LaFountain, Assistant Project Manager
BRANDON LaFOUNTAIN

Assistant Project Manager


OUR SERVICE AREA

We proudly serve Auburn Hills, Berkley, Birmingham, Bloomfield Hills, Clawson, Clarkston, Commerce, Davisburg, Farmington Hills, Ferndale, Franklin, Hazel Park, Highland, Holly, Huntington Woods, Lakeville, Leonard, Keego Harbor, Lake Angelus, Metro Detroit, Milford, Madison Heights, New Hudson, Novi, Oak Park, Oakland, Oakland County, Orchard Lake Village, Pleasant Ridge, Pontiac, Rochester, Rochester Hills, Southeast Michigan, Sylvan Lake, South Lyon, Southfield, Union Lake, Walled Lake, Troy, Villages of Franklin, Lake Orion, Ortonville, Oxford, Waterford, White Lake, West Bloomfield, & Wixom.

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