Quality custom-built room additions in Chicagoland | Screened Porches | Sunrooms
| Family Rooms | Room Additions | Serving Northern Illinois

Affordable sunrooms and room additions in suburban Chicago by TimberBuilt
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Summer Hours:
8:00AM - 5:00PM
10:00AM - 3:00PM
Sunday: Noon - 3:00PM

Winter Hours
Oct 1 - Jan 1:

8:00AM - 5:00PM
10:00AM - 3:00PM
Sunday: Closed

841 Equity Dr.

St. Charles, IL 60174
Map - Click Here

Interior Finishes:

The options shown below are just an overview of what's available. Please visit each specific product page to learn what options are available for each product model. Limitations may apply.

NOTE: On-screen images of finishes and colors may vary slightly from actual colors. Selections should be made based on actual color samples. Prices may vary depending on color chosen.


Unless otherwise requested, products are unfinished on the interior so that they may be finished on the job site.

Factory-Applied Primer

  • The interior of wood windows & doors may be ordered factory-primed
  • Primer prepares your windows and doors for a beautiful, painted finish to be completed on the job site

    NOTE: Limitations may apply; contact your local Kolbe dealer for more information.

uPVC Extrusions for Vinyl Units

  • The white & beige colors are integral to the vinyl, so they will never need refinishing
  • For Windquest IP units to meet Miami-Dade NOA, they must be white vinyl; IP units that are beige vinyl or color-coated can qualify for IPD4 and HVHZ, but DO NOT qualify for Miami-Dade NOA

Factory-Applied Clear Coat or Stain

Double Clear Coat

Let the natural beauty of the wood show with a durable clear finish. Note that when a double clear coat is requested without stain, a durable, solvent-based finish will be used.


Water-based stain is applied, then two coats of clear, water-based satin finish are applied to help protect the stain. The wood is lightly sanded between the coats. Custom stain colors may be requested.

Finish Option - Wood Look for Vinyl Units

Complement your interior decor by selecting one of our wood-look options, for vinyl units:
  • Three interior wood look options: Cherry, Sunset Oak, or Wheat
  • White laminate wrap available for the interior of beige units

NOTE: On-screen images of interior wood look options may vary slightly from actual colors. Selections should be made based on actual color samples. Interior wood look is not available for single hungs, single sliders, or picture slider windows.

Factory-Applied Paint

After being factory-primed, a topcoat of water-based, acrylic type latex paint is applied. Custom colors may be requested.

Factory-Applied Wire Brush Finish

  • Wire brushing creates a rugged texture and adds character to wood units
  • The perfect option to complement any rustic-style home

NOTE: Due to the nature of wire brushing certain limitations apply.

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