Welcome to Bob’s Custom Windows and Siding, Inc.


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, Wis. 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. LEARN MORE ABOUT US →

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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Bob’s Custom Windows
and Siding, Inc.

1015 North Parker Drive
Janesville, WI 53545

Phone: (608) 756-0735
Email: bobscustom@att.net

Monday-Friday, 9 a.m.-5 p.m.
Saturday by Appointment


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


Please contact us today to learn more about our company or to schedule a time for service.