Quartz Construction & Remodeling

Quick Answer: Deck construction in Foster City costs $46,000–$128,000 in 2025 depending on size, materials (pressure-treated wood, composite, or hardwood), and design complexity. Quartz Construction — CSLB #1003436, BBB A+, 4.9 stars — builds custom decks throughout Foster City. Call (650) 749-7436.

Deck Builders in Foster City, San Mateo County

A custom deck extends your Foster City home’s living space into the backyard, adding functional square footage for dining, lounging, and entertaining. San Mateo County’s mild climate makes deck investments particularly worthwhile — Bay Area decks are usable 300+ days per year.

Deck Cost in Foster City 2025

• Pressure-treated wood deck (200 sq ft): $46,000 – approximately $61,000
• Composite deck (200 sq ft, Trex or TimberTech): $54,000 – $128,000
• Hardwood deck (ipe, teak): $128,000 and up
• Multi-level or elevated deck: Add 30-50% to base cost

Quartz Construction designs and builds wood and composite decks in Foster City with full permit management. CSLB #1003436 | BBB A+ | 4.9⭐ (65+ reviews). Call (650) 749-7436 or fill out the form below.