Licensed and Insured
NJHIC#13VH12287000
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Custom Decks Built to Last in South Jersey
At C-JAM Construction, we specialize in custom deck building and outdoor structures designed to last — not just look good. Based in Deptford, NJ and serving homeowners across South Jersey, we focus on building high-quality wood and composite decks with clean craftsmanship and straight-up reliability.
From simple landings to full multi-level composite decks, we build outdoor spaces you’ll actually use — and be proud to show off. Fully licensed and insured, no shortcuts, no guesswork — just solid work done right the first time.
Giving back is also part of who we are. Through our Decks for CHOP initiative, a portion of every deck we build supports Children’s Hospital of Philadelphia — a cause that’s deeply personal to our founder and reflects our commitment to growing responsibly and giving back along the way.
📞 Call (609) 302-0249 to get started — let’s deck out your yard.
Premium Materials, Built to Outlast the Rest
We don’t just build decks — we build long-term value into every square foot. Our decks are constructed with your choice of:
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Trex composite decking or pressure-treated wood
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Vinyl railing systems — locally manufactured, backed by a lifetime warranty
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Upsized framing materials — we go above code, using 2x10 joist and 2x12 beams where others cut corners
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Hidden fasteners for a clean, screw-free surface
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Engineered to handle NJ weather without breaking down over time
Built strong. Built right. Built for your lifestyle.
Included Features & Upgrade Options
Every C-JAM deck comes loaded with professional trim and finish work that sets us apart:
✅ Included on Every Build:
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Picture-frame or breaker board layout
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White PVC trim boards to cover framing edges
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One set of stairs in our standard finish option (pictured above)
🛠 Optional Upgrades:
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Lattice skirting
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Wrapped posts and beams for a clean, column-style look
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Accent lighting and privacy walls (quoted separately)
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Security gates
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Upgraded boarder stair finish
Every deck we build is designed to look finished from every angle.
Built Right, Built to Last
See What Homeowners Say
Tasha
South Harrison Twp, NJ
They did an amazing job building my deck. They went above and beyond the basic construction code to reinforce the deck due to its size and made sure that it remains safe and secure. I would not hesitate to use them again for my next project.
I recently had my deck replaced by C-JAM Construction, and I couldn't be happier with the results! From start to finish, the entire process was seamless and professional.
Brian
West Deptford, NJ
The best thing I would like mention about C-JAM Construction is that they offer honest price while providing a dependable work for my deck project. I will hire them again in the future. I would recommend them to anyone.
Benjamin
Cherry Hill, NJ
From custom front porches and covered overhangs to outdoor kitchens and privacy walls, C-JAM builds structures that turn your yard into a destination. Whether you’re planning a full backyard setup in Haddonfield, Mullica Hill, or Cherry Hill, or just looking to add shade and functionality to an existing deck, we design and build everything right the first time — clean, sharp, and built to last.
More Than Just Decks — We Build Outdoor Living
Not sure where to start? Our Deck Builder FAQs cover common questions about permits, materials, timelines, and what to expect when building a deck in South Jersey.