Deck Builders in Walnut Creek, Contra Costa County 2025 | Quartz Construction
Quick Answer: Deck construction in Walnut Creek costs $42,000–$118,000 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 Walnut Creek. Call (650) 749-7436.
Deck Builders in Walnut Creek, Contra Costa County
Industry Resources & Standards:
A custom deck extends your Walnut Creek home’s living space into the backyard, adding functional square footage for dining, lounging, and entertaining. Contra Costa County’s mild climate makes deck investments particularly worthwhile — Bay Area decks are usable 300+ days per year.
Deck Cost in Walnut Creek 2025
- Pressure-treated wood deck (200 sq ft): $42,000 – approximately $57,000
- Composite deck (200 sq ft, Trex or TimberTech): $50,000 – $118,000
- Hardwood deck (ipe, teak): $118,000 and up
- Multi-level or elevated deck: Add 30-50% to base cost
Quartz Construction designs and builds wood and composite decks in Walnut Creek with full permit management. CSLB #1003436 | BBB A+ | 4.9⭐ (65+ reviews). Call (650) 749-7436 or fill out the form below.
What Our Clients Say
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Professional Resources & Regulations
- California Contractors State License Board (CSLB) — Verify contractor licenses
- City of San Jose Building Permits — Permit requirements & inspections
- ENERGY STAR — Energy-efficient materials & standards
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Verified reviews from our Google Business Profile. See all reviews on Google.
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Licensed • CSLB#1003436 • Serving San Jose & Bay Area
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