Deck & patio builders in Commack
Long Island Deck Co. serves Commack — a central Suffolk hamlet with large-lot 1970s–1990s homes, mature tree cover, and consistently strong demand for composite decks and pool deck replacements. Commack's residential neighborhoods along Commack Road, Veterans Memorial Highway, and Town Line Road feature lots averaging 8,000–12,000 sq ft — big enough for full deck-plus-patio combinations. In-ground pools are prevalent in the Foxwood and Lakeview sections, driving consistent demand for travertine and concrete paver pool deck replacements. Town of Smithtown Building Department at 99 West Main Street handles all Commack deck permits; typical turnaround is 4–6 weeks. Composite decking (Trex Transcend, TimberTech Landmark) dominates the Commack market because of the area's freeze-thaw climate and heavy leaf debris from mature oaks. Price anchors: 400 sq ft pressure-treated deck $8,000–$13,000 installed; composite at same size $14,000–$22,000; travertine pool deck $18–$28/sqft. Custom decks, patios, pool decks, and outdoor kitchens. Permits handled.
Free estimate in Commack
We visit your property — no travel fee in Suffolk County.
Why Commack homeowners choose Long Island Deck Co.
Commack is one of the most active communities for outdoor living projects in Suffolk County.A central Suffolk hamlet with large-lot 1970s–1990s homes, mature tree cover, and consistently strong demand for composite decks and pool deck replacements. Commack's residential neighborhoods along Commack Road, Veterans Memorial Highway, and Town Line Road feature lots averaging 8,000–12,000 sq ft — big enough for full deck-plus-patio combinations. In-ground pools are prevalent in the Foxwood and Lakeview sections, driving consistent demand for travertine and concrete paver pool deck replacements. Town of Smithtown Building Department at 99 West Main Street handles all Commack deck permits; typical turnaround is 4–6 weeks. Composite decking (Trex Transcend, TimberTech Landmark) dominates the Commack market because of the area's freeze-thaw climate and heavy leaf debris from mature oaks. Price anchors: 400 sq ft pressure-treated deck $8,000–$13,000 installed; composite at same size $14,000–$22,000; travertine pool deck $18–$28/sqft — making it an ideal location for composite decks, paver patios, and pool decks that extend your living space into the backyard. We have completed dozens of projects in Commack and the surrounding Suffolk County communities, and we handle all local permit requirements and inspection processes.
Our most popular services in Commack include Trex Transcend and TimberTech composite decks (25-year fade and stain warranty, zero annual maintenance), EP Henry and Cambridge paver patios, travertine and composite pool decks, and full deck-plus-patio combination projects. Every project includes permit handling — we file with the applicable Suffolk County municipality, attend all inspections, and hand you the signed close-out.
Deck & Patio Cost in Commack
A 300-400 sq ft composite deck in Commack typically runs $14,000-$22,000 installed, including footings, framing, decking, railings, and permits. Pressure-treated decks start around $8,000-$13,000 at the same size. Paver patios run $8,500-$13,000 for a 12x16 installation. Pool decks in travertine or concrete pavers run $18-$28/sqft. We provide free on-site estimates with a fixed written quote.
Quick Facts
- Suffolk County licensed & insured
- Trex Pro Platinum certified
- 1650+ projects completed
- 4.9-star Google rating
- 5-year workmanship warranty
Decks, patios, pool decks & outdoor kitchens
Composite Decks
Trex Pro Platinum, TimberTech, and Azek composite decks in Commack. Suffolk permits handled.
Learn moreDeck Repair
Board replacement, resurfacing, railing repair, and rot repair in Commack. Free inspection.
Learn moreDeck & patio FAQs for Commack
Yes — Long Island Deck Co. builds composite, pressure-treated, and hardwood decks throughout Commack and the surrounding Smithtown communities of Kings Park, Hauppauge, and East Northport. All Town of Smithtown Building Department permits handled from our Hauppauge base — we're right next door.
Commack's inland Suffolk location means freeze-thaw cycles are your main concern rather than salt air. Composite decking (Trex Transcend, TimberTech Landmark) handles freeze-thaw without cracking or warping and needs zero annual maintenance. Pressure-treated pine is the budget option and still holds up well with proper annual sealing. We don't recommend cedar or untreated pine for Commack's climate long-term.
Yes — Commack falls under the Town of Smithtown Building Department at 99 West Main Street, Smithtown. Decks on permanent foundations or over 144 sq ft require a building permit. We file the application, submit drawings, schedule inspections, and hand you the certificate of occupancy. Typical turnaround is 4–6 weeks.
A 400 sq ft composite deck in Commack runs $14,000–$22,000 installed with permit. Pressure-treated at the same size runs $8,000–$13,000. Pool deck additions in travertine or concrete pavers run $18–$28 per sq ft. We provide fixed written quotes after a free on-site estimate — no travel fee in Commack.
Yes — Commack's larger lots in the 1970s-1990s housing stock frequently have in-ground pools where the existing concrete pool deck needs replacement alongside a new composite deck off the back of the house. We handle deck + pool deck combinations on a single permit cycle, which saves time and is more cost-effective than separate contractors.
Ready to build in Commack?
Free on-site estimate. Permits handled. No travel fee in Suffolk County.
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