Sunspace Model 300 3-Season Sunroom
A bright glass 3-season room built from extruded aluminum, with double-roller windows that ventilate from both sides. Authorized Sunspace dealer.
About the Model 300
The Model 300 is a glass 3-season sunroom that brings bright, comfortable space to your home. It is built from two inch extruded insulated aluminum pillars with single-glazed glass, which gives it strength, stability, and a virtually maintenance-free exterior. Aluminum-framed double roller windows ventilate from both sides, since both sashes operate with no fixed pane. Roof systems are flexible, from cathedral ceilings to contemporary studio pitch, over an existing deck or porch, or even a carport. As an authorized Sunspace dealer, we handle design, permitting, and factory-trained installation.
Why Custom Design & Build
Single-glazed glass on extruded aluminum pillars for a clear, open feel.
Both window sashes operate, so you can vent from the top, bottom, or both.
Cathedral, studio pitch, or attach over a deck, porch, or carport.
Factory-trained installation from design through finish.
Recent Projects
Investment Guide
Contact us for current pricing
Final pricing depends on your specific design, materials, and site conditions.
Standard
Smaller footprint with studio pitch roof and standard glass. Contact us for current pricing.
Mid
Mid-size room with cathedral roof and upgraded color package. Contact us for current pricing.
Premium
Larger custom layout with premium roof style, full color choice, and multiple doors. Contact us for current pricing.
Frequently Asked Questions
What Homeowners Say
"Mark was incredibly patient, walked us through every step of the process, and delivered a dream deck that exceeded our expectations. The deck was completed ahead of schedule. His crew was hard working, meticulous, and respectful."
Marsha Cole
Verified Google Review
"Mark and his team are professional, detail oriented, and most of all, they LISTEN to you. So rare these days. Cannot recommend them highly enough."
Jeffrey Buck
Verified Google Review
"We couldn't be happier with the beautiful deck and porch roof Custom Design and Build completed for us in Forest Hill. Their craftsmanship is top-notch, and they were always clear and consistent with communication."
Kristen Volz, Forest Hill MD
Verified Google Review
Ready to Build?
Start with a free phone conversation. We'll learn about your project, answer your questions, and help you understand what's possible. No pressure, no high-pressure sales tactics.
4.9 stars on Google • 94 verified Google reviews • MHIC #91686 • Locally owned and operated
