Renova Contractors did a great job at building my deck, looks great and is definitely better than my old deck. I know a little bit about decks and I can say they definitely built me a deck that will withstand the rainy season in Seattle and won’t fall apart after five years. Thank you Mike, it was a pleasure working with your company.
Custom Deck Building in Bellevue WA
Selected Composite Discounts: We pass our direct contractor pricing on top tier Trex TimberTech and Azek composite boards straight to you so you dont pay retail
Local Pacific Northwest Suppliers: We source structural heavy timber from Dunn Lumber and Parr Lumber because big box store wood just twists and warps in our weather
Steep Slope Engineering: From Somerset to Lakemont we handle the complex structural engineering and Bellevue MyBuildingPermit approvals for high hillside decks





Zero Rot Engineering
We over engineer our ledger board flashing and use Simpson Strong-Tie hardware to guarantee water never gets trapped against your house
Wholesale Composite Pricing
Composite decking is incredibly expensive at retail. We leverage our high volume accounts to get you massive discounts on the actual decking materials
Permit Experts
Bellevue is notoriously strict about critical areas and steep slopes. We submit the engineering and handle the city planners so you dont get a stop work order
Firm Start Dates
We do not tear down your old deck in June and leave you staring at a muddy hole until August. Once we start digging footings we stay until the railings are done
Bellevue Deck Building Cost Guide
2026 Bellevue pricing reality
Bellevue deck building in 2026 commonly ranges from $28,000 to $55,000 for a smaller cedar or pressure-treated deck, $45,000 to $95,000 for composite systems with Trex, TimberTech or Azek, and $100,000 to $220,000+ for elevated decks, lake-view decks, waterproof under-deck living space, steel framing, glass railings or difficult hillside access. Permits, engineering, guardrail loads, ledger flashing, drainage, stairs, critical slope conditions and HOA review can change the price fast.
If you are reading local Reddit threads about deck quotes people are constantly shocked by the numbers. But building a deck in Bellevue is essentially building an exterior structural addition.
Here is what actually drives the budget for a Bellevue deck:
- The 30 Inch Rule: If your deck is less than 30 inches off the ground you often skip the permit process entirely. But the second you go over 30 inches Bellevue requires structural permits guardrails and massive concrete footings
- Steep Slopes: If you live on a hill in Cougar Mountain digging footings requires specialized equipment and a geotechnical engineer which adds thousands to the baseline cost before we even buy wood
- Material Upgrades: Cedar looks great on day one but rots in ten years. Upgrading to TimberTech or Trex composite is a hefty upfront cost but it never splinters or needs staining. We help soften that blow by passing our 30 to 40 percent material discounts straight to you
- Railing Systems: Cable railings and glass panels offer amazing views of the Cascades but they cost significantly more than standard aluminum or wood balusters
Clear Remodeling Process:
Our 5-Step Coordination Plan
Remodeling has moving parts. We define scope, document assumptions, and coordinate each phase so you know what is happening from consultation through final walkthrough.
Site Inspection & Layout
Permits & Excavation
Structural Framing
Decking & Railings
Final Details
Custom Decking Materials in Bellevue
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Renova Contractors LLC is a licensed general contractor for Seattle remodeling
We carry $2 million in liability insurance and a full Washington state contractor bond and coordinate work to meet local code requirements and inspections where required. We focus on clear documentation, practical communication, and accountable project execution.
Industry memberships and local associations
Bellevue Deck Building Reviews
Real feedback from deck building projects in Bellevue.
Why Renova Contractors LLC is the Top Deck Builder on the Eastside
Clear Structural Bids
We quote the complex engineering and massive footings upfront so you do not get crushed by change orders when we hit hard soil




Trex, TimberTech, Azek, Deckorators, Simpson Strong-Tie, Feeney, Fortress and Regal Ideas
IRC Code Experts


Clean Backyards
We dont leave rusty nails in your grass. We run magnetic sweepers daily and keep our lumber stacks completely organized

Zero Rot Engineering
We use selected flashing tape over every single joist and highly engineered Simpson hardware to ensure water never destroys the framing



Local Selected Wood
We refuse to use twisted retail wood. We source our framing materials from Dunn Lumber and Parr Lumber for a rock solid carefully level structure

Ready to start your project? Request a Detailed Project Estimate
We review scope, site conditions, allowances, and selections before work starts. You get a practical estimate with clear assumptions and coordination notes.
Didn't Find the Right Option? Request a Detailed Project Estimate
Defined scope with inclusions, exclusions, and allowances
Detailed estimate tied to site conditions and selected finishes
Organized coordination for materials, trades, permits, and inspections
Frequently Asked Questions
Answers about scope, estimates, scheduling, and project coordination
Do I absolutely need a permit to build a deck in Bellevue
If the deck is less than 30 inches off the ground at all points and is not attached to the house you generally do not need a building permit. But if it is over 30 inches or attaches to the house a full structural permit from Bellevue Development Services is legally required.
What is the real difference between Trex and TimberTech
Both are excellent but they have different cores. Traditional Trex is a wood plastic composite meaning it has wood fibers inside. Some TimberTech lines and Azek are PVC based meaning there is zero wood organic material at all making them completely immune to water absorption. We can show you samples of both.
Why do you buy lumber from Dunn or Parr instead of Home Depot
Quality control. The pressure treated lumber from big box retail stores is often incredibly wet and lower grade. When it dries in the sun it twists like a pretzel. We buy selected select structural lumber from Dunn Lumber and Parr because the boards are actually straight and dry which makes your deck carefully level.
Can I just put new composite boards over my old wood framing
Maybe but usually no. Composite boards are very heavy and flexible. If your existing joists are 24 inches apart or if there is any rot at all on the top of the old joists the composite will sag and eventually fail. We always do a structural probe of the old framing but 90 percent of the time we have to rebuild the frame to safely support composite.
How deep do the concrete footings have to go
In Bellevue the IRC dictates footings must go at least 12 inches below undisturbed soil to get past the frost line. But if you live on a slope in Somerset our engineers often require us to dig 3 to 4 feet deep or even use helical piles to hit solid bearing capacity.
Are cable railings safe for kids
Yes. Modern stainless steel cable railings are tensioned incredibly tight. The Bellevue building code requires the cables to be spaced so that a 4 inch sphere cannot pass through them at any point preventing small kids from slipping through while keeping your views completely open.
How do you hide the screws on a composite deck
We use hidden fastener clip systems. The clips slide into grooves on the sides of the composite boards and drill directly into the joist below. It leaves a carefully uniform gap between the boards and keeps the top surface completely smooth and barefoot friendly.
How much does a deck cost in Bellevue?
Many Bellevue decks range from $28,000 to $95,000 depending on size, material, stairs and railing. Elevated, engineered, waterproof or glass-railing decks can exceed $150,000.
Do Bellevue decks need permits?
Many do, especially elevated decks, structural rebuilds, ledger-attached decks, stairs, guardrails or work near slopes. We check Bellevue Development Services and MyBuildingPermit requirements before construction.
Field Notes for Custom Deck Building in Bellevue WA
Most people look at the deck and think about the boards first, or the railing, or just that the whole thing needs to feel safer and less half finished but with decks the visible part is not always where the actual problem is, so for Renova Contractors LLC the first look is usually footings, ledger, beams, posts, stairs, railings, flashing, drainage, access, slope, and whether the existing frame is even worth saving, because new decking does not fix weak joists, bad ledger flashing, soft posts, or a railing system that was never blocked correctly, and in Bellevue some jobs are simple enough, like replacing boards or cleaning up a small repair, but some are not simple at all because slope, tree cover, wet winters, HOA rules, tight side-yard access, higher labor costs, exterior review, and structural work can all change the job before anyone even picks composite color, so a deck in Lake Hills is not automatically the same thing as a deck in Somerset, West Bellevue, Bridle Trails, Newport, Downtown Bellevue, Bel-Red or near Lake Washington, same service name but different property, different access, different risk, and sometimes a different permit conversation too, the numbers have to stay as ranges not promises because a real deck estimate depends on site access, hidden rot, material level, inspection needs, labor intensity, and whether the work touches structure or exterior details, a cheaper bid usually removes something from that list and for a tiny surface repair maybe that is fine, but not when the skipped part is what is holding the deck up
The permit side is not one answer for every deck either, depending on what is actually being changed Bellevue deck work can involve Bellevue Development Services, MyBuildingPermit, structural review, drainage questions, trade permits, HOA rules, or condo design rules if those apply, replacing a few boards is not the same thing as rebuilding framing, changing stairs, modifying railings, touching the ledger, or adding new structural work, so that should be checked before demo, ordering, or scheduling instead of after the deck is already opened up, what Renova Contractors LLC is really doing on a custom deck build is not just sending someone to install boards, it is site review, framing condition, material choice, railing details, access, cost, permit path if needed, and order of work, brands like Trex, TimberTech, Azek, Deckorators, Simpson Strong-Tie, Feeney, Fortress, and Regal Ideas only matter if the product fits the actual deck, climate, frame condition, maintenance expectations, railing style, inspection needs, and budget all matter, and if direct contractor pricing is available on selected composite boards we pass that through instead of making material a hidden markup game, but better boards still do not save a bad build, if the railing choice changes blocking that needs to be known early, if composite changes fastening or stair details that needs to be in the number, if the ledger looks questionable it should not be buried under a nice board sample, and if slope or drainage affects footings or access it belongs in the estimate, because the goal is not a deck that photographs well for one week, it is a deck that still makes sense after weather, use, maintenance, and inspection reality catch up with it, so for Bellevue homeowners Renova Contractors LLC handles deck building with clear scope, real pricing conversations, code-aware planning, and durable installation, not trying to make the job sound easier than it is, just trying to make it predictable enough that the finished deck feels solid, useful, and worth the money instead of a pile of expensive boards sitting on top of unanswered questions
Seattle remodeling support
Need pricing, scope help, or a real contractor to look at the project?
Send the details, call, text, or message us. Renova Contractors LLC reviews the scope, site conditions, timing, materials, and next steps before turning it into a quote.
- Project scope review
- Estimate direction
- Material and schedule questions
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