SUNROOMS & FOUR SEASON ROOMS IN BLOOMINGTON-NORMAL

Enjoy More of the Outdoors From the Comfort of Home

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SUNROOMS & FOUR SEASON ROOMS

Bring More Light Into Everyday Life

A sunroom can change more than the appearance of your home. By creating a bright, inviting transition between indoor and outdoor living, it gives you a place that feels open and connected while still providing the comfort and convenience of being inside.
Whether you envision a quiet reading room, a casual gathering area, or a four season space you can enjoy throughout the year, we’ll help you create a room that feels purposeful rather than simply added on.

Learn About Our Process

WHY WORK WITH KNAPP BUILDERS

A Room With More Ways to Enjoy Home

A well-designed sunroom should complement the home rather than look like an afterthought. Rooflines, windows, exterior materials, interior finishes, and transitions into existing rooms all play a role in making the new space feel like it belongs.
Knapp Builders brings more than 50 years of residential construction experience to every project. We consider both the new room and the home surrounding it, creating spaces with the craftsmanship and attention to detail needed to look right from the inside and out.

Start Your Project
1

Four Season Rooms

Create an enclosed living space designed for comfortable use throughout Central Illinois’ changing seasons.
2

Sunrooms

Add a light-filled room where expansive windows create a stronger visual connection with your yard and surrounding landscape.
3

Sitting & Reading Rooms

Design a quieter part of the home for reading, morning coffee, conversation, or simply enjoying the view.
STEP 1

Planning

We discuss how you want to experience the space, where it could fit within your home, and which features are most important to you.

STEP 2

Build

Our team brings the room together with careful construction, detailed carpentry, and attention to the transitions between the new and existing portions of your home.

STEP 3

Enjoy

When your addition is complete, you’ll have a space that feels like a natural extension of your home, designed to support your family for many years ahead.

FEATURED ADDITION PROJECTS

SPACES THAT CHANGE WITH THE SEASONS

CUSTOMER TESTIMONIALS

Trusted by Homeowners Across Central Illinois

“Knapp has built a house, done 2 remodels, 2 decks, and a tree damage repair for us. They do excellent work, when they say they'll do it, and at or below the estimate. I have total trust in them.”

Chuck and Marsha AlbrittonLake Bloomington

“There isn't a day that goes by that we do not say "bless this house." We LOVE where we live and we adored working with Knapp.”

Ed and Judy H.Bloomington, IL

“I cannot thank Knapp Builders enough for the outstanding work that they did on our family room and garage addition. This project exceeded our expectations in every way. Their guidance and assistance with the entire process from the first phone call to the completion of the entire project was such an asset in making this addition the dream project that it was.”

Kyle and Jennifer KillionDeWitt County, IL

MAKE EVERY SEASON FEEL CLOSER

A custom sunroom or four season room gives you a place to enjoy sunlight, changing leaves, summer evenings, and winter views from the comfort of your home.

See Our Work