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Grennan Construction

Grennan Construction

General Contractors
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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. 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 – allowing us to offer the solution that is best suited for you. 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 were 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 & you are satisfied! We guarantee all materials and the quality of our work.

Services Provided

Aluminum Siding, Asphalt Shingle Roofing, Brick Siding, Composition Roofing, Drywall Installation, Garage Building, Home Additions, Insulation Installation, Masonry, Metal Roofing, Roof Repair, Roof Replacement, Rubber Roofing, Siding Installation, Siding Repair, Skylight Installation, Slate Roofing, Sliding Door Installation, Soffit Installation, Soffit Repair, Stone Masonry, Tar and Gravel Roofing, Tile Roofing, Torch Down Roofing, Trim Work, Window Installation, Window Replacement, Door Installation, Gutter Cleaning, Gutter Installation, Multi-Family Apartment & Building Services

Areas Served

Auburn Hills, Beverly Hills, Bingham Farms, Birmingham, Bloomfield Hills, Clarkston, Commerce Township, Drayton Plains, Farmington, Farmington Hills, Franklin, Keego Harbor, Lake Angelus, Lake Orion, Oakland Township, Orchard Lake, Pontiac, Rochester, Rochester Hills, Royal Oak, Sylvan Lake, Troy, Waterford, West Bloomfield, West Bloomfield Township, White Lake, Davisburg


Angie's List 2013, 2014, 2015 and 2016 Super Service Award WinnersA+ with BBB since 1997


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5 Projects

Mid-sized traditional brown one-story brick house exterior idea in Detroit with a hip roof and a shingle roof

Mr. and Mrs. Graham

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Business Details

Business Name

Grennan Construction

Phone Number

(248) 462-0224


917 Orchard Lake Rd
Pontiac, MI 48341

License Number



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3 Ideabooks

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