Company Overview
Company Name
Grennan Construction
Address
917 Orchard Lake Rd, Pontiac, MI, 48341, United States
Website
grennanconstruction.comPhone
(248) 694-8780Approx. Annual Revenue
$2.4M
Employees
12
Established
2005
Google Reviews
4.8 (254 reviews)
Google Business Category
Window installation service
About Grennan Construction
Grennan Construction is a roofing and siding contractor based in Pontiac, Michigan. The company provides residential services to residents in Oakland County, offering free estimates and financing options. Grennan Construction specializes in a range of roofing and siding solutions, including Certainteed, metal roofing, Owens Corning, James Hardie siding, and vinyl siding.
Business Profile
Read from the Grennan Construction website on Oct 12, 2026. Hover an item to see the exact wording it came from.
How Grennan Construction works
Licenses, certifications & awards
- James Hardie Elite Preferred ContractorManufacturer certified
Brands carried or installed
Ownership (as declared by the business)
About the website
- Website quality (AI-assessed)
- 7/10 · Current and complete site; Clear service and contact info
Grennan Construction is hiring
Open roles listed on their website as of Oct 12, 2026.
- carpenter jobs
Hiring in: Skilled trades
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Frequently Asked Questions about Grennan Construction
Categories
Technologies Used
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Social Profiles
Key Decision Makers
Fred Grennan Owner