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About

About This Business

At WindowPRO Partners LLC, we pride ourselves on presenting the best quality replacement windows, patio doors, entry doors and storm doors. WindowPRO serves the 'do-it-for-me' homeowners who want simple, reliable solutions for replacing old windows with low-maintenance, energy-efficient, custom-made windows. Privately owned for 5 generations, the WindowPRO team has a combined 200 years of experience in the window and door industry. WindowPRO is convinced that quality and service are the true determinants of the company's future success. We stake our reputation on providing highly effective and responsive services. Our history, expertise and dedication to our customers make us a leader in window and door replacement.

BBB Accredited Since: 2/22/2009

Years in Business: 9

Products and Services

Arch & Round Top Windows, Awning Windows, Bi-fold Doors, Bow & Bay Windows, Casement Windows, Door Installation, Entry Doors, French Hinged Doors, French Sliding Patio Doors, Lift & Slide Patio Doors, Multi-Slide Patio Doors, Single & Double Hung Windows, Slider Windows, Sliding Patio Doors, Specialty Shaped Windows, Window Installation

Business Details

Local BBB:
BBB of Michigan
BBB File Opened:
9/29/2009
Business Started:
3/1/2017
Business Started Locally:
1/1/1923
Business Incorporated:
3/1/2017
Type of Entity:
Limited Liability Company (LLC)
Business Management:
Mr. Jake Zahnow, Owner
Mr. Paul Windel, General Manager

Additional Contact Information

Principal Contacts
Mr. Jake Zahnow, Owner
Additional Phone Numbers
Other Phone: (248) 560-6455
Additional Email Addresses
Sales: Email this Business
Technical Support: Email this Business
Customer Service: Email this Business

Additional Information

Payment methods
We accept major credit cards and personal checks and offer financing options. 
Refund and Exchange Policy
Our Custom made windows and doors are backed with an industry leading warranty.
Other Resources
Michigan Department of Licensing and Regulatory Affairs (LARA) Professional Licensing
PO Box 30004
Lansing MI 48909
Phone Number: 517-241-0199
Fax Number: 517-241-9416
https://www.michigan.gov/lara/bureau-list/bpl/resources/contact-the-bureau-of-professional-licensing
[email protected]

Latest Reviews

  • David L

    "Window PRO installed our front door in 2006, and in 2025 the molding around our Sidelights cracked. Window PRO replaced the molding around the Sidelights at no charge!" ... Read full review

  • Laurie C

    "We had Window Pro replace every window in our house and the front door. We did it in stages so we wouldnt have to finance." ... Read full review

  • Jenise B

    "You guys are awesome. Excellent customer service." ... Read full review

View all Reviews

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