St. Louis Metro Area's Trusted Sunroom and Porch Enclosure Contractor
Turn your patio, porch, or deck into a comfortable space your family uses every day.
Sunspace USA Serves Homeowners Across St. Louis Metro Area
Looking for sunrooms in St. Louis? Missouri homeowners deserve outdoor spaces that work as hard as they do. At Sunspace USA, your local sunroom builder and authorized Sunspace dealer, we design and install custom sunrooms, porch enclosures, screen rooms, patio covers, and WeatherMaster window systems that transform underused outdoor areas into genuinely livable spaces your family will enjoy far more often.
As an authorized Sunspace dealer serving the greater St. Louis and eastern Missouri region, we bring products engineered to handle Missouri’s full range of weather, from humid summers to cold winters. Our team manages every step of your project, from the first design conversation through final installation, so you never have to wonder what comes next.
Outdoor Living Solutions for Missouri Homes
Our Popular Services
Every project we build is designed with comfort, long-term durability, and low maintenance in mind. More natural light, better airflow, and real protection from Missouri weather.
Retractable Screens
Motorized screens that deploy or retract with a single button press. Blocks insects, filters UV, and reduces wind without closing off your outdoor space.
Why St. Louis Metro Area Homeowners Choose Sunspace USA
Straightforward Pricing
We give you honest, itemized quotes with no surprises. Our custom sunroom additions in St. Louis Metro Area are built to fit your goals and your budget.
Authorized Sunspace Dealer
We are factory-authorized, which means you get manufacturer-backed installation, properly documented warranties, and a team that knows the product completely.
Craftsmanship You Can See
Every detail matters on a project attached to your home. We take the time to get it right on every build.
A Consultation That Respects Your Time
One focused conversation covers your goals, your space, and your options. No pressure, no overselling.
Manufacturer-Backed Warranties
Your project is protected by some of the strongest coverage in the outdoor living industry, backed by Sunspace directly.
We Know Missouri
Missouri summers are long, winters are cold, and spring storms are real. We choose and install products that are proven to perform here.
See What We've Built for St. Louis Metro Area Homeowners
Browse completed sunroom and porch enclosure projects across the greater St. Louis and eastern Missouri area. Every build is custom-designed to fit the homeowner’s space, style, and budget.
Our Projects
Browse completed sunroom, porch enclosure, and outdoor living projects across the St. Louis Metro Area.
WeatherMaster V3T Window and Door Installation in Fenton, MO
Sunspace USA fitted this existing wood-framed porch in Fenton, Missouri with WeatherMaster Vertical 3-Track windows and a matching entry door,...
V4T Wall System with Door and Sunshades in Warrenton, MO
Sunspace USA enclosed this hot tub patio in Warrenton, Missouri, using a Vertical 4-Track wall system, wrapping the space on...
WeatherMaster Window Systems in Troy, MO
A two-story brick home in Troy, Missouri gained a fully upgraded outdoor living space when Sunspace USA installed WeatherMaster window...
Our 5-Step Process for a Stress-Free Build
Consult
We listen first. Tell us how you want to use the space and what matters most.
Design
We build a custom plan around your home's existing structure and your personal preferences.
Permits
We prepare and submit permit applications and coordinate directly with your local building department.
Build
Our installation crew works cleanly, carefully, and on schedule from the first day to the last.
Walkthrough
Before we close out your project, we walk the finished space with you and address every detail.
Industry-Leading Warranties on Every Project
Every project is secured by robust manufacturer warranties to protect your investment.
30 year Acrylic Cover Warranty
Lifetime Frame Warranty on WeatherMaster Windows
10 year Vinyl Glazing Warranty
Comprehensive Sunroom Warranty
Forget the fine print. These are rock-solid manufacturer protections that stay with your home. Build with total confidence.
Serving Homeowners Across St. Louis Metro Area
Sunspace USA provides custom sunroom, porch, and patio enclosure construction throughout eastern and central Missouri, including: