CUSTOM STRUCTURES
CUSTOM OUTDOOR STRUCTURES
Pergolas, Sunrooms, Screen Rooms, Gazebos & More -
Looking for the best pergola builders near you? Need a skilled sunroom installer, or searching for top-rated screened-in porch contractors? You’ve come to the right place. OnDeck is your go-to outdoor construction company in the Barrington, IL and Lake Geneva, WI areas, specializing in high-end custom outdoor spaces that elevate your home and lifestyle.
From custom wood pergolas and fiberglass shade structures to elegant 3-season rooms, 4-season sunrooms, gazebos, screened porches, and covered patios—we design and build it all, tailored to your space.
SEE CUSTOM STRUCTURES INSPIRATIONAL BOOK
CUSTOM-BUILT PERGOLAS – A TRADITION ROOTED IN SICILY
Our family legacy of building pergolas dates back to a quiet Sicilian village known locally as Pergola, where finding a shady spot was a treasured ritual. That tradition lives on through every custom pergola we design. Whether you're looking for a classic wood pergola or a modern fiberglass pergola, OnDeck is the 5-star pergola builder company near you.
WE OFFER :
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Customizable designs: dimensions, color, hardware, lighting
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Work with top manufacturers like Renson, ShadeFX, ArborDirect, and OZCO
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Optional retractable canopies, privacy screens, and sunshades
Need a pergola construction company near you? Explore our Pergolas page (Use circle design arrow for the link) to see styles, features, and past installations.)
GAZEBOS & PAVILIONS – FREESTANDING ELEGANCE
Our gazebo and pavilion contractors create timeless outdoor structures perfect for entertaining or relaxing. Whether you’re in Lake Geneva, WI, Barrington, IL, or the surrounding areas, we craft stunning designs using high-quality wood or metal.
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Hexagonal, octagonal, or rectangular styles
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Built-in seating and decorative features
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Durable, weather-resistant materials
SCREEN ROOMS & SCREENED-IN PORCHES
Tired of bugs ruining your evenings outside? OnDeck is a leading screen room sunroom installation contractor near you. Our screen enclosures let you enjoy the outdoors without dealing with the pests.
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Full enclosures or screen-in upgrades for existing patios
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Screeneze and EZEBreeze systems
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Retractable screen options for flexibility
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Enhanced comfort with integrated lighting and durable flooring
3-SEASON & 4-SEASON SUNROOMS
Expand your living space year-round with a beautifully crafted season room. Whether you need a cozy 3-season room or a fully insulated 4-season sunroom, our expert sunroom installers near you deliver craftsmanship and comfort.
WE OFFER :
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Energy-efficient materials and climate control
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Seamless home integration with matching architecture
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Options for heated floors, window systems, skylights, and more
Learn more on our Sunrooms & Room Additions page.
SUN SAILS & SHADE INSTALLATIONS
Looking for a stylish, affordable way to add shade? Our sun sail and shades installers design beautiful, modern coverings for homes and businesses.
Shade sail benefits include:
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Blocks up to 98% of UV rays
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Reduces sun exposure and cooling costs
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Adds color, dimension, and comfort to any outdoor area
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Perfect over decks, pools, gardens, or seating areas
PORCH & ROOM ADDITIONS
Want to expand your home with a porch or room addition? We’re expert porch and room addition builders in the Barrington, IL area, delivering seamless, architecturally matched expansions that feel like part of the original home.
Imagine:
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A peaceful morning coffee on your new covered porch
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Hosting game nights in a bright, open sunroom
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Stylish finishes like railings, columns, and matching rooflines
WHY CHOOSE ONDECK FOR YOUR CUSTOM OUTDOOR STRUCTURE?
At OnDeck, we specialize in designing and building custom outdoor structures that enhance your property’s aesthetics, functionality, and value. Whether you're looking to create a shaded retreat, an all-season outdoor space, or a fully enclosed porch, we have the expertise to turn your vision into reality.
✔ Expert Craftsmanship – Over three decades of experience in designing and building high-quality outdoor structures
✔ Custom-Tailored Solutions – Every project is unique, designed to fit your home’s style, space, and personal preferences
✔ Durability & Quality Materials – We use premium wood, fiberglass, and weather-resistant materials to ensure long-lasting structures
✔ Enhance Your Home’s Value – Investing in a pergola, pavilion, screen room, or all-season addition boosts your property’s curb appeal and resale value
✔ Complete Outdoor Living Solutions – We handle everything from gazebos and porch additions to entire backyard transformations
At OnDeck, we believe your outdoor space should be an extension of your home—a place where you can relax, entertain, and enjoy nature in comfort. Serving Lake Zurich, IL, and Lake Geneva, WI since 1988, we are your trusted partner for custom-built outdoor structures that turn your backyard into a dream oasis
LET’S BUILD YOUR OUTDOOR OASIS
Whether you're looking for the best wood pergola installer, a trusted covered patio contractor, or a complete outdoor room addition, OnDeck is ready to deliver. Let us help you design, build, and enjoy the outdoor living space of your dreams.
Contact us today for your free consultation. Experience why we’re the best pergola and sunroom contractor near you.