Duncan's Premier Sunroom Contractor
CUSTOM SUNROOMS, SCREEN PORCHES & OUTDOOR LIVING SPACES IN DUNCAN, SC
Turn your backyard into the space you’ve been picturing with Express Sunrooms, a trusted sunroom building company serving Duncan and the surrounding Spartanburg County communities. We design and install sunrooms, screen porches, pergolas, patio covers, and retractable awnings built to add comfort, style, and everyday usability to your home.
Maybe you’re picturing a light-filled sunroom, a screened porch for bug-free evenings, or a shaded retreat for hosting friends. Our team turns that vision into custom outdoor living solutions, backed by quality craftsmanship and a smooth process from first call to final walkthrough. As one of the area’s leading sunroom installers, we help Duncan homeowners get more out of their homes through beautiful, functional spaces. From your first design consultation in Duncan through professional installation, we keep the process simple, so all that’s left for you to do is enjoy the results.
Why Duncan Homeowners Choose Us
BUILT DIFFERENT. BACKED BETTER.

2 YR
Labor
Warranty
2 YR
Labor Warranty
2-Year No-Questions-Asked Labor Warranty
Every Duncan project comes with our exclusive 2-year labor warranty, covering even accidental screen damage. A lifetime, fully transferable manufacturer warranty is handed to you in writing once the job is done.
Guaranteed Estimates
The Price You’re Quoted Is The Price You Pay. No hidden invoices. No scope creep once work begins. The number you’re quoted is the number you pay, put in writing before we ever break ground.
Factory-Certified Master Builders
Permits, engineering, and materials are covered by us upfront. Your payment isn’t due until your project is complete and you’re satisfied.
No Money Down - Pay Upon Project Completion
Permits, engineering, and materials are covered by us upfront. Your payment isn’t due until your project is complete and you’re satisfied.
We Handle All Permits and Paperwork
As a licensed SC residential builder, we manage every city, county, and state permit on your behalf, so the bureaucracy never lands on you. Stress-free from day one.
SUNROOM & OUTDOOR LIVING SERVICES IN DUNCAN, SC
Vinyl Porch Panels

Vinyl Porch Panels give Duncan homeowners more control over their outdoor space. Open the panels for fresh air and an open-air feel, or close them when you want added protection from bugs, rain, and changing temperatures. Enjoy your porch comfortably through more of the year.
SCREEN PORCHES

As trusted porch enclosure builders, we design custom screen porches for Duncan, SC homeowners who want to enjoy more time outdoors. Keep insects and excess heat outside while letting fresh air flow through, creating a comfortable space for relaxing, dining, or entertaining.
Motorized Screens

Motorized retractable screens give Duncan, SC homeowners an easy way to make their outdoor spaces more comfortable. Lower the screens to reduce bugs and harsh sunlight, or raise them to welcome fresh air and an open view whenever you choose.
Pool Enclosure

Modern pool enclosures are built to meet demanding building codes while helping Duncan, SC homeowners get more from their pools. By adding a protective enclosure, you can help keep out debris, insects, and unwanted outdoor elements while reducing the time and expense of ongoing pool maintenance.
Sunrooms

As an experienced sunroom contractor serving Duncan, SC, we build insulated sunrooms designed for year-round comfort and natural light. Each installation features double-paned, Low-E, ENERGY STAR-rated glass to help create an inviting space suited to South Carolina’s changing weather.
Pergolas

A custom pergola from Express Sunrooms brings style and visual interest to your Duncan backyard. Designed for comfort as much as looks, our pergolas make any outdoor space feel more inviting.
Retractable Awnings

Add shade, weather protection, and on-demand comfort to your patio or deck with retractable awnings from Express Sunrooms. Ideal for controlling sunlight, cutting heat, and protecting your outdoor furniture.
Patio Covers

A custom patio cover gives you sun or shade whenever you want it, while keeping your patio cool underneath. Built from durable, low-maintenance materials made to hold up for decades.
Trex Decking

Too often, the backyard ends up as one of the least-used parts of the home. A new deck changes that, turning your yard into a real gathering space for family and friends.
DUNCAN OUTDOOR LIVING INSPIRATION GALLERY
Need ideas before you commit? Explore our gallery to see how homeowners across Duncan and Spartanburg County have reshaped their backyards with sunrooms, screen porches, pergolas, patio covers, and awnings. Classic, modern, or somewhere in between, our gallery shows what’s possible with custom outdoor living design.
Real Homeowners. Real Results.
What Spartanburg County Homeowners Say About Us
Don’t take our word for it. Here’s what real customers across Spartanburg County have to say about working with Express Sunrooms.
Areas We Serve in Duncan, SC
As your local outdoor living contractor, we proudly serve homeowners throughout Duncan and nearby communities:
Duncan Neighborhoods:
Downtown Duncan – Established homes near the Main Street and SC-292 intersection adding classic screen porches
Stoneledge Park Area – Family neighborhoods near the park choosing backyard pergolas and patio covers
East Main Street Corridor – Growing commercial and residential blocks pairing sunrooms with newer construction
Northeast Duncan – Newer subdivisions near the BMW plant well-suited for bright, energy-efficient sunrooms
Neighboring Communities:
Wellford – Small-town streets enhanced with custom sunroom additions
Lyman – Growing subdivisions choosing screen porches for bug-free evenings
Reidville – Rural properties gaining insulated, four-season sunrooms
From the Main Street storefronts to the newer streets near the BMW plant, we know what makes each Duncan neighborhood unique.
Contact us today to request a free design consultation and start planning your outdoor living transformation.
Our 10 Trust Points
At Express Sunrooms, we’ve built our reputation in Duncan on quality craftsmanship, dependable service, and a customer-first approach. Every project we take on is backed by our 10 Trust Points.
We Have All Necessary City, County, and State Licenses
As a licensed residential builder, we’re fully qualified and authorized to complete your Duncan project to code. Sunrooms, screen rooms, pergolas, patio covers, decks, and outdoor living installations are all we do, and all we focus on.
We Are Bonded and Insured
Everyone who steps onto your property is fully covered. Working with Express Sunrooms means you carry zero liability risk.
We Guarantee our Estimates
The price we quote is the price you pay. No surprises, no add-ons, no increases once work begins.
We Guarantee Our Work
Every installation includes a two-year, no-questions-asked labor warranty plus a transferable lifetime warranty on the products we install.
We Have A No-risk, No-pay Guarantee
Permits, engineering, and materials are covered upfront by us. Payment isn’t due until the project is complete.
We Arrive On Time
Your time matters to us. Our crew shows up when scheduled, works efficiently, and keeps your project moving from start to finish.
We Clean Our Work Area
Once the job wraps, we clear out all debris and clean the site. Nothing is left for you to do but enjoy your new space.
We Return All Calls
Our team stays available and responsive before, during, and after your project. You’ll never be stuck chasing us for an update.
We Keep Our Promises
From product quality to project timelines to customer service, every commitment we make is one we follow through on, no exceptions.
We Are Factory-trained Certified Master Builders
Our installers complete specialized factory training from the manufacturers behind every product we install. Certified experts handle your project, not generalists.
Simple From Start to Finish
HOW WE TURN YOUR DUNCAN BACKYARD VISION INTO REALITY
No guesswork, no chasing down contractors. Our clear 5-step process keeps you informed and stress-free from first call to final walkthrough, every time, for every Duncan project.
Free Design Consultation
We visit your Duncan home, walk your space, and talk through your goals. No obligation, no pressure, no cost.
Custom Design Proposal
You get a detailed design plan and a locked-in estimate. What we quote is what you pay, guaranteed.
Permits &
Scheduling
We take care of every required city, county, and state permit, so paperwork and red tape never fall on you.
Professional Installation
Our certified crew arrives on time, works efficiently, and keeps you in the loop through the entire project.
Walkthrough & Warranty
We walk through every detail with you together. Both warranties are handed over in writing once the project is complete.
OUR RECENT BLOGS
How a Pool Enclosure Reduces Annual Maintenance Costs for Spartanburg Pool Owners
Ask any Spartanburg homeowner who maintains a pool without an enclosure what the most frustrating part of pool ownership is, and the answer...
Read MorePool Enclosure Costs in Spartanburg: What Factors Affect Your Final Price
Adding a pool enclosure is one of the more involved outdoor living projects a Spartanburg homeowner can take on, and it’s also one...
Read MoreVinyl Porch Panels for Spartanburg Patios: The Open and Close Enclosure Option Explained
Most Spartanburg homeowners who want to enclose their porch assume it’s a major construction project. Permits, weeks of work, high upfront cost, and...
Read MoreFAQs — SUNROOMS & OUTDOOR LIVING IN DUNCAN, SC
Unlike some of the surrounding communities, Duncan is an incorporated town with its own local government, so sunroom, screen enclosure, and patio cover permits typically run through the Town of Duncan rather than Spartanburg County directly. We confirm exactly which office your address falls under and manage that submission for you either way, so you're never stuck figuring out where to file.
Several of Duncan's newer subdivisions, especially those built up around the growth near the BMW plant, require architectural review before exterior additions go in. We factor that into your design consultation and can prepare the drawings your HOA board typically asks for, so approval doesn't stall your timeline.
In most cases, we can build directly onto your existing patio, deck, or concrete slab if it's structurally sound. Given how many Duncan homes range from older construction near downtown to newer builds further out, foundation needs vary block to block, so we evaluate your specific site during the consultation and recommend a reinforced slab or custom-built deck where needed.
Yes, and the timing works in your favor. Duncan has grown steadily in recent years thanks to its location between Greenville and Spartanburg and its proximity to major employers like the nearby BMW plant, with new residential development filling in around established neighborhoods. Added square footage from a professionally installed sunroom or covered outdoor space appeals to that expanding buyer pool and holds up thanks to our durable, low-maintenance materials.
Absolutely. Express Sunrooms holds every required town, county, and state license needed to build in Duncan and the rest of Spartanburg County, and we carry full bonding and insurance on every project. That protects you from liability and keeps your build compliant with local code.
Every completed project includes our exclusive 2-year, no-questions-asked labor warranty for extra peace of mind, covering even accidental screen damage during those first 2 years. Most projects also carry a manufacturer's lifetime, fully transferable warranty. Both are handed to you at project completion.
All of our four-season sunrooms use double-paned, Low-E, tempered, insulated, Energy Star-rated glass. That combination is what keeps a Duncan sunroom comfortable through humid summer afternoons in the Upstate and through the cooler stretches that roll in off the Blue Ridge foothills each winter.
Yes. Along with Duncan and the rest of Spartanburg County, we regularly serve homeowners in Greer and other communities along the Greenville County line, as well as towns throughout the I-85 corridor. Not sure if we cover your street? Call us at (864) 756-8334, and we'll confirm right away.
No Risk. No Upfront Cost.
NO MONEY DOWN — PAY WHEN YOUR PROJECT IS COMPLETE
We’re one of the few outdoor living contractors serving Duncan that cover permits, engineering, and materials upfront. Not a single dollar is due from you until the project wraps and you’re fully satisfied with the results.
- We cover all permits and engineering costs upfront
- No large deposits or upfront payments required
- Payment due upon project completion
- Financing options available for qualifying projects
- Transparent, locked estimates, the price you're quoted is the price you pay

NO MONEY
DOWN
Pay when your project is complete!
- No upfront payments required
- We cover permits & engineering
- Payment due upon project completion
- Financing available on qualifying projects
For custom orders, deposits may be required. Ask your consultant for details.









