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Deck Building & Repair in Seattle, WA

Compare 6 local deck building & repair pros. Typical service: $38–$76.

Top Deck Building & Repair Companies in Seattle

  1. 1.Intercrus Decks LLC

    5.0★ (108 reviews)

    5.0★ from 108 reviews

    +12066274210Website

  2. 2.Redrra Remodeling Deck & Railing Installation

    5.0★ (30 reviews)

    5.0★ from 30 reviews

    +14252423525Website

  3. 3.Intercrus Decks

    5.0★ (20 reviews)

    5.0★ from 20 reviews

    +12065943404Website

  4. 4.MJ NORTHWEST CONSTRUCTION LLC

    5.0★ (17 reviews)

    5.0★ from 17 reviews

    +12065818085Website

  5. 5.Seattle Premium Decks

    5.0★ (10 reviews)

    5.0★ from 10 reviews

    +12063502525Website

  6. 6.Emerald City Deck Solutions

    4.3★ (4 reviews)

    4.3★ from 4 reviews

    +12065904727Website

Deck Building & Repair Cost in Seattle

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in Seattle
Pressure-treated wood deck, installed$38–$76/sq ft
Composite deck, installed$63–$113/sq ft

Deck Building & Repair prices in Seattle run about 26% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 6 companies serving Seattle, rated 4.9★ on average across 189 customer reviews.

Seattle Climate & Seasonal Timing

What Seattle's weather means for scheduling deck building & repair.

Last spring frost
March 5
First fall frost
November 24
Annual precipitation
37.72"
Heating degree days
4,370
Cooling degree days
188
MonthLowHighPrecip
Jan37.3°48.6°5.47"
Feb37.1°51.4°3.52"
Mar39.7°55.4°3.85"
Apr42.9°59.9°2.79"
May48.8°65.8°2.01"
Jun53.3°70.7°1.57"
Jul56.5°75.8°0.85"
Aug57°76.2°0.94"
Sep53.1°70.8°1.3"
Oct46.8°60.7°3.38"
Nov40.6°52.4°5.98"
Dec36°46.9°6.06"

NOAA station data 3.2 miles from Seattle.

Permits & Regulations in WA

  • Washington requires Labor and Industries contractor registration for construction and repair work, with no dollar-based handyman exemption
  • Specialty contractor registration requires a $6,000 surety bond and liability insurance
  • Electrical, plumbing and HVAC work always needs the appropriately licensed trade, whatever the job size

License required: Washington L&I contractor registration (no handyman exemption)

Sources: lni.wa.gov

Deck Building & Repair FAQs for Seattle

How much does it cost to build a deck in Seattle?

A pressure-treated wood deck in Seattle typically runs $38-$76 per square foot installed; composite costs more.

How many deck builders serve Seattle?

We track 6 deck builders serving Seattle.

Is deck building in Seattle more expensive than average?

Carpentry labor in Seattle runs about +26.1% versus the national average.

Do I need a permit to build a deck in Seattle, WA?

In WA, Washington requires Labor and Industries contractor registration for construction and repair work, with no dollar-based handyman exemption. Most Seattle decks attached to the house or raised off the ground need a building permit and footing inspection.

Wood or composite decking in Seattle?

With about 37.72 inches of rain a year in Seattle, wood needs sealing every couple of years; composite costs more up front but skips that upkeep.

Does composite decking get hot in Seattle?

It can -- with summer highs near 76F in Seattle, lighter colors and capped composite stay noticeably cooler underfoot.

How many quotes should I get for a deck in Seattle?

Three is typical; with 6 deck builders serving Seattle, compare the framing lumber, footings and railing included, not just the decking boards.

When is the best time to build a deck in Seattle?

Builders in Seattle book up in spring; signing in late fall or winter often means a better slot, and footings can be poured whenever the ground is not frozen.