MAG Contracting Services, LLC

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Learn about our screening process

4 Years In Business

Company Details


  • Mon: 9:00 AM - 7:00 PM
  • Tue: 8:00 AM - 7:00 PM
  • Wed: 8:00 AM - 7:00 PM
  • Thu: 8:00 AM - 7:00 PM
  • Fri: 8:00 AM - 7:00 PM
  • Sat: 9:00 AM - 7:00 PM
  • Sun: Closed
View All Details & Credentials


Service Details

  • Residential Work
  • Small Jobs Welcome

Areas of Expertise

  • Doors
  • Windows
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Warranty Offered


6 Verified Reviews*
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
*Reviews imported from Google have not been individually verified by HomeAdvisor.
Showing 1-6 of 6 results
5.0 John M. Milwaukee, WI

Easy to work with, prompt courteous service. The job was well done and the site was left clean. I will be using them again for future projects.

5.0 Marya L. Milwaukee, WI

Mike did a great job replacing my specialty window. He was experienced, thorough and honest. I will definitely hire him again in the future.

5.0 Ron P. Brookfield, WI

My wife and I had 4 companies out. Tim and Mike were the only window people that didn't try to pressure us to buy something we didn't want. We only wanted 2 windows replaced and that's what they did. We will have them back to do the rest in spring.

Response from Company:

Thank you Ron for your kind words! We always strive to be an honest, trustworthy company ,and are so happy to hear about your experience as we want our customers to feel satisfied and taken care of. We appreciate your recommendation and look forward to helping you again anytime you need us!

5.0 Morgan G. Milwaukee, WI

Shopping around, these guys had the best price I could find & heard great things from a close family friend so I made the call. Quick and easy scheduling, competing pricing and very friendly and personable workers (Mike & Tim were SO awesome!) I got 11 double hung windows done in just one day, and for only $11,200! I will definitely be calling these guys back once I talk my husband into replacing the remaining windows in our house!

Response from Company:

Morgan, thank you for your kind words and for choosing MAG Windows in Hartford, WI! We take pride in our work and strive to go the extra mile for our customers. We appreciate your recommendation and look forward to helping you again anytime you need us!

5.0 Ron K. Muskego, WI

They respected all of our requests. Put in 3 windows on our second floor. Extremely honest. Will recommend to my friends and family.

Response from Company:

Thank you for the review, Ron! We work hard to give all our customers a great experience and quality service. We're happy to hear we have earned your trust and we look forward to working for you in the future!

5.0 Brandon Ohm Google Review

I couldn't be more happy with the service these men provided. They came out to my house gave me an estimate. Actually showed up when they said they would and finished the work ahead of schedule. Furthermore they were very respectful of my neighbors and my property. This is the 1st contractor I've delt with that has left my home cleaner than when they came. Tim I can't thank you enough. I will definitely be using them again in the near future and I highly recommend them to anyone else.


MAG Contracting Services, LLC
New Vinyl Windows

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Seal of Approval

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  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
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  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
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