• Quick Service.
  • Quality Work.
  • Life Time Warranty

Serving a 50-Mile Radius for Over 50 Years

Welcome to the website of Brennan-Fraser Roofing & Siding Inc., one of Appleton, Wisconsin’s most established and respected contracting firms. We have been serving the Fox Valley area for 3 generations. We provide services within a 50 mile radius of Appleton and have been for more than 50 years!

No job is too big or too small for the roofing, siding and replacement window specialists at Brennan-Fraser Roofing & Siding…and Windows. We specialize in top-quality roofing, siding and replacement windows all at affordable rates.


For a free estimate and consultation on your next construction project, please give us a call today.



Services We Provide

Commercial & Residential

Brennan-Fraser Roofing & Siding…and Windows, specializes in top-quality roofing, siding and replacement window work
at affordable prices.
We are specialists in custom covering with pre-finished aluminum of: soffit and fascia, outside window casings,
and sills, door trim, and overhangs

Lifetime Warranty

Our Lifetime Factory Warranty on windows, siding and roofing is designed to protect your investment and our reputation. We guarantee our work and our vendors guarantee their products all to give you piece of mind for your investment in your home. Our Lifetime Factory Warranty and is fully transferable.

For our replacement windows, we also warranty all moving parts and the hermetically insulated seal against defects in materials or workmanship. We also offer an optional lifetime glass breakage rider for extra peace of mind.

What Our Customers Say about Us

  • Dear Brian,

    Recently, we had damage to our roof and siding when a windstorm came through our area on Saturday night. On
    Sunday, we called Brennan Fraser after looking in the yellow pages. We were surprised when a representative of the
    company called us back within an hour and was able to schedule a crew to come to repair the damage on Monday morning. The crew was so courteous and skilled and a piece of the trim that was damages was delivered to the house while they were working to enable the repair to be completed in less than two hours. The next day, we had rain and snow and were relieved that the damage had been fixed and any other potential damage averted! Thank you so much for the exemplary customer service from all the employees of the company! The contact people were professional and responsive and the repair crew was so friendly and courteous. You, your employees and your company should be commended for the level of service that was extended at every contact!

    Nancy & John B., Menasha, WI
  • My wife and I want to thank your company for correcting our leak problem. Especially the crew that did the job! Theywere very diligent in working to find the problem and were very courteous to us! Please share this thank you with those three men also!

    Karl A., Appleton, WI
  • Thank you! The workers were conscientious and did a terrific job. We were very pleased with the job as a whole!

    Sally P., Oshkosh, WI
  • To All at Brennan Fraser:

    We want to thank you for the wonderful job you have done on our home. Not only is the house beautiful but it has
    been a pleasure working with you! From your receptionist to Bill to the workmen, you have all made this a great


    George & Cheryl S., Kimberly, WI
  • Thanks again for the great job! We continue to be impressed by our replacement windows, as well as your installers…great crew!

    John & Carrie B. Appleton, WI
  • My husband managed to melt our siding with the grill! Brennan Fraser worked with our insurance company and got the siding replaced in one day! They did a great job, the insurance company enjoyed working with these professionals and I don’t let my husband grill anymore!

    Jean B., Green Bay, WI