Greenville Screened Porches — Sunroom Additions
A sunroom brings natural light and outdoor views into a fully conditioned room. Unlike a 3-season room or screened porch, a sunroom uses insulated glass panels and connects to your home's HVAC system — making it usable in January as well as July. In Huntsville's market, a well-built sunroom addition consistently ranks among the highest-ROI home improvements.
We design and build sunrooms that match your home's existing roofline, siding, and trim — not the prefabricated kits that look like a greenhouse was backed up against your house. Every sunroom we build goes through Huntsville's building department and gets designed to code for Greenville County's wind and snow load requirements.
Sunroom vs. 3-Season Room — Which Is Right for You?
The key differences come down to insulation, HVAC, and cost. A 3-season room (EZE-Breeze panels) gives you 9+ months of usability at roughly $14,000–$28,000. A fully conditioned sunroom runs $25,000–$55,000+ depending on size and finishing level — but it functions as a true room addition and adds the most appraised value to your home. We'll walk you through both options at your free in-home estimate.
Sunroom Features
- Dual-pane low-E insulated glass — reduces heat gain in South Carolina summers by up to 65%
- Insulated roof panel system or full architectural asphalt shingle roof
- HVAC extension from your existing system (we coordinate with your HVAC contractor)
- Electrical for lighting, ceiling fans, and outlets throughout
- Matching interior trim, drywall, and flooring to your home's existing finishes
- Full building permit and final inspection — certificate of occupancy included
Sunroom Costs in Huntsville
Sunroom additions in the Greenville metro typically range from $25,000 to $55,000 depending on size (12×16 to 16×28), roof system type, and finishing level. This cost includes permits, foundation, framing, glass, electrical rough-in, and interior finishing. HVAC extension is coordinated separately with your provider. Schedule a free in-home estimate and we'll give you a fixed price.