NDT inspection cost in Seattle: Liquid Penetrant Testing rates
Field-anchored pricing guide for PT (Liquid Penetrant Testing) and the other five common NDT methods in Seattle, WA. Rates are quoted in USD per hour and reflect the Tier-1 labour band that applies across pacific northwest markets.
Boeing's NAS 410 compliance requires up-to-date Level II/III certification visibility for every contractor inspector on every shift — a gap shuts the work centre down.
Low band
$207
per hour · routine scope, full-day crew
Typical
$384
per hour · most jobs land here
High band
$620
per hour · turnaround / night shift / rope access
Capillary-action surface flaw detection on non-porous materials per ASTM E165 / E1417.
PT is comparable to MT on cost. The cost shifts upward on aerospace fluorescent (Type I) procedures where qualified consumable lot tracking, controlled-light booth, and AMS 2644-rated penetrants add overhead.
Seattle's industrial substrate — Aerospace (Boeing), Shipbuilding, Maritime — pulls NDT scopes onto recurring sites including Boeing Renton (737) and Boeing Everett (777, 767, 747). The local contractor pool prices against FAA Part 145 acceptance criteria, which requires Level II / III certified personnel and traceable instrument calibration. That floor — not raw wage data — is what sets the band.
The Tier-1 multiplier (×1.18 applied to the national PT base band) accounts for local cost of living, procurement competition, and the documentary overhead that FAA Part 145 imposes. PT programmes in Seattle have historically clustered around the typical rate of $384 per hour, with turnaround and outage premiums pushing toward the high band.
Recurring industries pricing against this band:
Named operators / sites: Boeing Renton (737), Boeing Everett (777, 767, 747), Vigor Industrial Shipyard.
Crew rotation length
Multi-day mobilisations in Seattle amortise travel and per-diem across more billable hours, lowering the per-hour rate. Single-day call-outs sit at the high band.
Access and rigging
Rope access, scaffold, or confined-space entry add 15–35% to the base rate. Aerospace (Boeing) sites in Seattle often require all three.
Shift premium
Night shift, weekend, and turnaround windows in Seattle typically carry a 25–40% premium on the base hourly rate.
Acceptance criteria
FAA Part 145 acceptance criteria require Level II / III sign-off, which prices above structural-weld AWS D1.1 work.
Equipment specification
Standard visible-dye PT is the cheapest band; aerospace fluorescent PT carries 30–50% premium.
Programme volume
Multi-asset programmes at sites like Boeing Renton (737) typically negotiate volume discounts of 8–15% off the typical rate.
Mobilisation distance
Remote pacific northwest sites add a per-trip mobilisation charge ($350–$1,500 depending on travel distance from Seattle).
Documentation depth
Full digital scan packages with audit-grade traceability cost 10–20% more than basic written report deliverables, and are required at FAA Part 145 sites.
- 1.Plan PT scopes against the pacific northwest turnaround calendar to avoid rush premiums.
- 2.Batch multiple assets at the same site (e.g. Boeing Renton (737)) to amortise mobilisation across more billable hours.
- 3.Provide detailed component specs and accessibility info up-front — vague RFPs price high to absorb uncertainty.
- 4.Standardise on a single contractor for programme work; spot-buys carry a 10–20% premium.
- 5.Where PT is interchangeable with another method (RT ↔ PAUT, MT ↔ PT), price both before committing.
- 6.Verify Level II / III currency before quote — re-mobilisation for an expired cert is unbillable to the asset.
- •Stainless and non-ferromagnetic weld surface inspection
- •Aerospace component fluorescent PT (AMS 2644)
- •Forging and casting acceptance
Method
Liquid Penetrant Testing
Abbreviation
PT
Labour band
Tier 1 (×1.18)
Code authority
FAA Part 145
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Request a quotePricing caveat
The numbers above are field-anchored ranges, not a quote. Actual Seattle rates vary with scope, accessibility, shift, and contractor utilisation. Always solicit at least three quotes before committing programme spend.