Since 1994, NNL Railings has been designing and installing premium, maintenance-free aluminum railing systems, decks and architectural features across Washington. Our custom solutions enhance safety and style for both residential and commercial properties.

Aluminum Railing, Decking & Shade Systems Built to Last

Ornate custom railing with curves and swirls

Aluminum Railings

Since 2000, NNL Railing has delivered premium, maintenance-free railing systems for homes and commercial projects across the Northwest. Explore our custom options, expert service, and unmatched durability.

Learn more about railings

Canopies & Sunshades

From Seattle to Bellevue to Kirkland to Redmond, our custom canopies and sun shades bring comfort, functionality, and architectural flair to homes and commercial spaces. Explore our work and let us help design a solution that’s as practical as it is beautiful.

Learn more about canopies & sunshades

Aluminum Decks

Our aluminum decks are the perfect complement to our railing systems—low-maintenance, long-lasting, and made to elevate any space. We've completed standout projects across Seattle, and we’re proud to see our work bringing lasting enjoyment to homeowners and residents alike.

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Trellises & Enclosures

Our custom aluminum trellises and enclosures add structure, privacy, and visual appeal to outdoor areas—perfect for residential backyards, commercial courtyards, and everything in between. Designed to endure the Northwest weather, they’re built for beauty and function.

Learn more about trellises & enclosures

Why Work with Us?

Fully Engineered Solutions

Every railing, deck, canopy, and trellis is fully engineered to meet or exceed code.

Customer Satisfaction Commitment

Residential, commercial, or architectural — we’re only happy when you are.

Superior Drawing Packages

Clear, detailed shop drawings help your project move forward without delays.

Custom Finishes

We deliver exactly what your project requires — no shortcuts

Supplier Coordination

We actively manage supplier timelines to ensure on-time delivery.

Fast Turnaround Times

When you need drawings, answers, or updates, we move faster than the competition.

Field-Ready Crews

Our installers are professional, communicative, and prepared for the realities of your site.

Emergency Response Experts

You can count on us to solve urgent problems quickly so you stay on schedule.

Attention to Detail

Our products stand out for flawless finishes, precision fits, and second-to-none craftsmanship.

I wanted to express how pleased I am to have completed another project with you and your team. It's been a pleasure collaborating, and I look forward to our future projects together.
Isac L.
Compass GC
It has been a pleasure working with you and the NNL team. You guys are one of the best Contractors we work with.
Michael S.
Graham