Create a Dry Outdoor Room Under Your Deck
South Louisiana rain can turn the space under a second-story deck into a muddy, unusable area. With a professionally installed under-deck drainage (dry-space) system, Metairie Deck & Outdoor turns that wasted space into a dry, comfortable outdoor room you can use almost year-round.
We design and install under-deck drainage systems for homes in Metairie, Kenner, Harahan, River Ridge, New Orleans, Lakeview, and the surrounding Jefferson & Orleans Parish areas. Our systems channel water away from your framing and out to discreet gutters, so you can add lighting, fans, and even an outdoor kitchen under your deck without worrying about leaks.
Book your free estimate today!
What Is an Under-Deck Drainage System?
An under-deck drainage system is a hidden waterproofing system that:
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Catches rainwater that falls between deck boards
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Channels it into built-in gutters and downspouts
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Keeps the area under your deck dry enough for a patio, storage, or outdoor living room
Depending on your deck and goals, we can:
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Protect the joists and beams from constant moisture
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Create a finished ceiling look with soffit panels
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Prep the space for recessed lighting, ceiling fans, TVs, heaters, and more
Best Pairings for Under-Deck Drainage
Under-deck drainage really shines when it’s part of a bigger outdoor plan. Popular combos we install in Metairie and nearby areas include:
Composite Resurfacing + Drainage
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Replace old wood decking with low-maintenance composite
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Add an over-the-joist drainage system at the same time
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Finish the underside with soffit panels, lighting, and fans
This gives you a two-level outdoor room: a sunny deck up top and a shaded, dry patio underneath.
Drainage + Deck Lighting
Once the space under your deck is dry, lighting becomes a game changer:
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Recessed can lights in a beadboard, PVC, or aluminum ceiling
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Stair and post lighting for safe access
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Accent lighting for outdoor TVs, bars, and seating areas
Drainage + Outdoor Kitchens & Storage
Under-deck dry space is perfect for:
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Covered outdoor kitchens and bars
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Poolside hangout areas
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Protected storage for lawn equipment, kayaks, or outdoor furniture
Our Process for Under-Deck Drainage in Metairie
We keep the process simple and transparent:
On-Site Visit & Inspection
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Walk your deck and under-deck area
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Check posts, beams, joists, and ledger for rot, spacing, and code issues
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Look at existing drainage patterns and problem spots (standing water, soft ground, staining)
Design & System Recommendation
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Decide whether an over-joist or under-joist system makes the most sense
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Plan gutter and downspout locations
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Review ceiling finish options (beadboard, PVC, aluminum) and lighting locations
You’ll get a clear, written estimate with before/after options if we recommend repairs or resurfacing.
Installation
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Protect landscaping and home surfaces
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Install drainage panels, gutters, and downspouts
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Add ceiling materials, lighting, and fans (if included)
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Test the system with water so you can see it working before we leave
Final Walkthrough & Care Tips
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Show you where gutters and downspouts are and how to access them
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Explain simple maintenance
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Review any warranties on materials and our workmanship
Is Under-Deck Drainage Right for Your Home?
Under-deck drainage is a great fit if:
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You have (or plan to have) a second-story deck
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You’d like a covered patio, but don’t want to pour a separate slab or build a new structure
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The area under your deck is always muddy, damp, or unusable
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You want extra outdoor living space without adding onto your house
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You’re worried about long-term moisture damage to your deck framing or the side of your home
Not sure? During your estimate, we’ll talk through how you currently use your yard and what would make it more usable.
Ceiling & Finish Options for Dry-Space Areas
We can finish the underside of your deck to match your home’s style:
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Beadboard ceilings – Classic Southern look, great for Old Metairie and Lakeview homes
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PVC or vinyl soffit – Low-maintenance, moisture-resistant, ideal for our humid climate
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Aluminum panels – Clean, contemporary look with excellent durability
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Recessed lighting, ceiling fans, and speakers – Turn it into a true outdoor room
We’ll bring samples so you can see finishes in person during your consultation.
Under-Deck Drainage FAQs
Can an under-deck drainage system be added to my existing deck?
Yes—often it can. For existing decks, we usually use an under-joist or recessed system that attaches beneath your current framing. Before we start, we perform a structural inspection to make sure your posts, beams, joists, and ledger are in good shape and that we can create the proper slope for drainage. If anything needs to be repaired or upgraded first, we’ll include that in your quote.
What kind of maintenance does the system need?
Maintenance is simple. Plan to:
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Clear leaves and debris from gutters and downspouts seasonally
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Do a quick visual check once or twice a year
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Have us perform an annual flush and inspection if you’d like a professional checkup
Most of our Metairie and New Orleans clients pair this with a yearly deck maintenance visit.
What ceiling finishes can I choose from?
Most homeowners choose:
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Beadboard for a traditional porch look
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PVC or vinyl soffit for low-maintenance performance
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Aluminum panels for a sleek, modern finish
All of these options work well with recessed lights, ceiling fans, and other electrical features.
Will this system help protect my deck framing?
Yes, especially with over-the-joist systems. By diverting water away from joists, beams, and ledger boards, drainage systems greatly reduce the amount of time your framing spends wet, which can help minimize rot and extend the life of your deck structure.
How long does installation usually take?
For a typical two-story deck in the Metairie area, most under-deck drainage projects take a few days to about a week, depending on:
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Deck size and height
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Whether we’re also resurfacing the deck
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The complexity of the ceiling, lighting, and electrical work
We’ll give you a realistic timeline during your estimate and keep you updated along the way.
Get a Dry-Space Estimate for Your Deck
Ready to turn that damp, wasted space under your deck into a shaded outdoor room?
Metairie Deck & Outdoor designs and installs under-deck drainage systems throughout:
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Metairie, Kenner, Harahan, River Ridge
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New Orleans (Lakeview, Mid-City, Uptown, Gentilly)
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Nearby parts of Jefferson & Orleans Parish
Call today or request your free estimate online to:
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Walk your deck with a local, insured contractor
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See system and ceiling options in person
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Get clear, line-item pricing for under-deck drainage—and any resurfacing, lighting, or outdoor kitchen upgrades you’re considering