Serving Southern Wisconsin for over 40 Years, our employees have over 100 Years of combined experience!

Bob Scieszinski 1968
Bob Scieszinski 1968
Quality products and workmanship does make the difference. Putting our customers first is Number one! With over 40 years of experience, you can count on the team at Bob’s Custom Windows and Siding, Inc. to satisfy all your window and siding needs quickly, efficiently and affordably. We know how much quality means to you, and we work hard to give you the absolute best on every job.
bobBob’s Custom Windows and Siding, Inc. is located at 1015 North Parker Drive in Janesville, Wisconsin. Our showroom there features examples of our window and siding lines as well as an example of one of our sunrooms. Bob’s Custom Windows and Siding, Inc. was established in 1986 by Robert Scieszinski. Bob’s father, Jim, had been in the siding business since 1947. When Bob bought the business in 1986, he expanded it to include replacement windows. In 1995, Bob joined the franchise of United States Seamless and began doing seamless steel siding. In 2002, he added seamless steel log siding to his service offerings. The business also performs work on doors, gutters, gutter guards, fascia, soffit, roofs and sunrooms.
Browse our website to learn more about us. We are fully insured and lead-certified for your protection. Contact us today to schedule a free in-home estimate with one of our experts. Senior citizen discounts are available.
gold level 2013 customer appreciation award

Sunrise Windows – President Awards

Home improvements that add instant appeal

When it comes to your home, what’s on the outside definitely counts. Update your exterior with custom windows, siding, and awnings.

Affordable upgrades

Invest in your biggest asset without breaking the bank. Ask about Bob’s latest deals and offers – there’s always a new way to save

Knowledge and experience you can count on

Expect first-rate service from a business that’s been around for 25 years and a staff that’s worked together for over a decade.


Received Gold Level Customer Appreciation Awards

Top-quality products

Bob’s partners with top brands to offer you the most state-of-the-art products and services available.

Satisfaction guaranteed

Rest assured with lifetime transferable warranties on all new window and siding installations. For your protection, Bob’s is fully insured and is a lead-safe certified firm.


Get the renovations you need at prices you’ll love.


Our mission is to provide the finest products and services to our customers at fair and reasonable prices, to handle all issues that arise within a reasonable time frame and in a professional manner, and to remember that “Our Customers come first” at all times.

Energy Star
steel siding
Building Green

We offer the Best Quality materials & products
available to our homeowners in the market place.


Custom Windows Built To Fit Your Needs!

For unique upgrades, start on the outside looking in. Choose from a wide range of products and services backed by lifetime transferrable warranties, including:

  • Sunrise windows (authorized dealer) all types, styles & colors of windows available
  • New and replacement windows
  • Patio doors
  • Provia storm doors
  • Provia entry doors
  • Sunroom construction and remodeling
  • Energy Star glass

The Absolute Best On Every Job!

All siding projects are worry-free, backed by the highest standards of service and lifetime transferrable warranties. Choose from a wide selection of siding styles and colors to find one that fits your home – and your budget – perfectly.

  • Seamless Steel Siding
  • Gutter Shelter – Keeps the Leaves Out!
  • Mortarless Stone Seamless Steel Log Siding
  • Year-round installation
  • Shutters
  • Teflon-coated seamless steel siding
  • Dutch lap
  • Vertical
  • Stone veneers
  • Soffit, Fascia & Gutters Shutters

Aristocrat® Awnings, Shades and Canopies

Did you know awnings can block harmfull UV rays and reduce indoor temperatures? We offer over 250 different color combination. It will be easy to find a match for your home!

  • Retractable Awnings
  • Retractable Canopies
  • Pergolas and Canopy System
  • Exterior Solar Shades
  • Drop Shades

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Client Testimonials

  • “Thank you so much for the outstanding work of putting in my new windows. Oh how wonderful it is to be able to open windows that couldn’t be opened for years. I can now open my windows with just two fingers, and so easy to wash them also.

    Thank you for going beyond and doing some extra things for me. Like wrapping my garage door, service door and the patio door. I sure do appreciate it all!

    Your men are so very neat when doing the work. I liked that they respected my requests. (Like taking their shoes off) I bet they were so happy to be finished with me. Josh also was a great guy to help me with some things! One more thank you for everything!”

  • “Bob’s work crew were outstanding. They are very knowledgeable and professional. They made our house look beautiful. Great Work!”

    Dave & Barb
  • “Tell all of the guys on each of the crews GREAT JOB! It looks wonderful!! Thanks for the hard work and always addressing all of our questions and concerns.”

    June & Jim
  • “The men did an excellent job. The garage looks beautiful! My husband Jim worried for about 4 years about getting the garage done but he was too sick to do it. I wish he could see it now. He would be as happy with it as I am! It looks like a new garage. Thank you so much!”

  • “Once again I have the pleasure of thanking you and your crew for a beautiful installation of windows and doors on our home. I thought no one could beat the considerations shown by your siding installers, but we were proven wrong. We are pleased with the professionalism shown by Josh, Ed & Randy. They work well together to make the transition from old to new as painless as possible for the homeowner as well as taking care to clean up before they leave. Truly, it is appreciated.

    We will keep you in mind when the time comes for more changes to our home, and will be more than happy to recommend you. Again, my thanks to you and the “guys” for making me a very happy homeowner.”

  • “All businesses should be as good and honest as Bob’s Custom Windows & Siding Inc.”


Call 608-756-0735 today for a FREE estimate and ask about special discounts!