Licensed and Insured
NJHIC#13VH12287000
C-JAM Construction builds custom decks and outdoor living projects with an emphasis on durability, craftsmanship, and long-term value. As a TrexPro® contractor, we construct composite and wood decks, front porches, stairs, and rail systems designed to look good and perform for years to come.
Featured Deck Projects
Pilesgrove Trex Pool Deck
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Trex Transcend Lineage Biscayne decking
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White vinyl railings
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PVC trim
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Custom pool deck design
Washington Township Trex Pool Deck
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Trex Transcend Lineage Island Mist decking
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Trex privacy wall
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White vinyl railings
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PVC trim
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Custom pool deck design
Why Homeowners Choose C-JAM Construction
TrexPro Certified
Specializing in low-maintenance composite decking built to manufacturer standards.
Built in South Jersey
Proudly serving homeowners throughout Gloucester, Camden and Salem Counties.
Permit Assistance
We'll guide you through the permit and inspection process from start to finish.
5-Star Reputation
Trusted by homeowners for quality craftsmanship, communication and attention to detail.
What Our Clients Are Saying
Excellent, excellent, excellent.C-Jam Construction built our deck for us on our new home and the process was great, start to finish.We worked with Mark, who was communicative, helpful, and patient. Our deck was fairly good size, with two levels, three sets of stairs, and Trex material on the top. Mark and his crew helped us through every step of the city inspection process, and was exceptionally flexible in moving one set of stairs and angling off a corner near a tree for more walking space.We couldn’t be happier with our experience and I highly suggest you consider them if you’re looking for help with your deck.
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- Aaron, Clementon NJ.
Frequently Asked Questions
How much does a new deck cost?
Every project is different, but most decks we build range from $15,000–$40,000 depending on size, materials, railings, stairs, and other custom features. Our free Deck Planner can help you estimate a realistic budget.
Can my existing deck be resurfaced instead of rebuilt?
If the existing framing is structurally sound and meets current building codes, resurfacing can be a great way to update your deck with new composite decking and railings while saving money.
Do I need a permit to build a deck?
Most deck projects require permits and inspections. We help guide homeowners through the permitting process to ensure every project is built safely and in compliance with local building codes.
How long does it take to build a deck?
Most projects are completed in 1–2 weeks once construction begins. Permit approval, weather, project size, and material availability can all affect the overall timeline.
What areas do you serve?
We proudly build decks throughout Gloucester, Camden, and Salem Counties, including Deptford, Mullica Hill, Washington Township, Haddonfield, Marlton, Cherry Hill, Voorhees, Williamstown, and surrounding South Jersey communities.