Cost guide · Seattle & King County
Seattle MasterFix project ranges for Seattle and King County, WA, shown next to cited public market benchmarks. Every job is priced as one written project estimate for the agreed scope after a free on-site visit.
MasterFix ranges
Typical Seattle MasterFix project ranges, final price after free on-site estimate
Typical Seattle MasterFix project ranges, final price after free on-site estimate
| Band | MasterFix | Notes |
|---|---|---|
| Starting at | $8,100/project | Entry scopes |
| Typical | $21,400/project | Most common mid scopes |
| High planning | $33,700/project | Complex or premium scopes |
High end for elevated/complex sites; starting for smaller ground-level wood decks.
Public 2025–26 estimates from cited sources — shown for comparison, not as a MasterFix quote. Sources are linked below. Washington sales tax may apply on a signed contract.
| Band | Market | What it represents |
|---|---|---|
| Low | $20,294/project | Cost vs. Value 2025 Seattle wood deck addition |
| Typical | $28,639/project | Cost vs. Value 2025 Seattle composite deck addition |
| High | $45,000/project | Larger / elevated / covered decks (local planning high) |
CvV Seattle wood $20,294 / composite $28,639. Angi Seattle deck guide: about $37–$74/sf; average project about $10,133 for many smaller decks.
How we work
Yes — full general contracting for deck additions.
Seattle MasterFix Precision Craftsmanship (Seattle MasterFix Precision Craftsmanship) is a Washington-registered contractor #SEATTMP744NL, based at 5415 6th Ave NW, Seattle, WA 98107. Service area: Seattle and King County, WA. Related pages: /services/fencing/ · /services/paint/.
FAQ
Typical Seattle MasterFix project ranges, final price after free on-site estimate: starting about $8,100, typical about $21,400, high planning band about $33,700. Public Seattle market midpoint used for comparison is about $28,639. High end for elevated/complex sites; starting for smaller ground-level wood decks. Final price is after a free on-site estimate.
Cost vs. Value 2025 Seattle lists about $20,294 for a wood deck addition scope and about $28,639 for composite, with estimated cost recouped around 83% and 80% respectively.
Many decks need SDCI permits; height, attachment, and location in required yards matter. See SDCI Tip #312 and confirm before building.
Yes. Seattle MasterFix provides full general contracting for deck additions in Seattle & King County, including permitting coordination under applicable SDCI / local rules.
Photos
Placeholder slots for project photos. No images are claimed here until real job photos are added.
Sources
Open sources used for the ranges on this page. Always verify current figures before you budget.
Estimates are non-binding until a written contract is signed. Compare two or three written bids on the same scope, and verify any contractor on WA L&I before you sign.
Call (206) 550-4576 or send an estimate request. We will walk the scope and write a project quote — never an hourly guess.
More guides: /guides/ · Related service
