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New Deck & Patio.

Building from scratch gives us the opportunity to do it right — proper footings, framing, drainage, and waterproofing from day one. We design for how you live, not just how it looks.

Newly completed residential deck with custom cedar railing system
What you get

What’s included.

Engineered for your specific site

Code-compliant permits pulled

Integrated waterproofing options

Multiple material choices

Owner-led from design through completion

Why Alta

Built on three commitments.

Owner-led

Miguel Altamirano is on every project start to finish. No subcontractors, no surprises.

Certified

Westcoat and TREMCO certified installer. ICC-ES rated systems for code compliance.

Warranty

5-year workmanship warranty plus manufacturer material warranty. Best Price Guarantee.

Our process

How it works.

01

Design

Discuss vision, site constraints, and budget.

02

Permit

Draw plans and pull required permits.

03

Frame

Footings, posts, beams, and joists.

04

Finish

Decking, railings, and waterproofing.

Materials

Industry-leading systems.

Pressure-treated framing

Cedar

Composite

Hardwood

Common questions

New Deck & Patio FAQ.

New decks in the Portland area typically run $50 to $150 per square foot depending on materials, height, and code requirements. Engineered plans and permits are included in our quotes.

Free estimate

Get your free estimate today.

Tell us about your project. We’ll respond within one business day with a no-pressure, detailed estimate — and our Best Price Guarantee.

  • ✓ Free on-site consultation
  • ✓ Detailed written estimate
  • ✓ Best Price Guarantee
  • ✓ Owner-led, no subcontractors

Request Free Estimate