Three engagement tiers — scope first, quote after the walkdown.
The pricing model mirrors the engagement model: one crew, one schedule, one PO. No published rate card — every quote follows the on-site walkdown, so the scope that drives the number is the scope you read in the deep-dive.
Pick the tier that matches the moment — ongoing support, fixed-scope retrofit, or rapid-response recovery. Each one ships under one crew, one schedule, one PO, with the same documented-handoff discipline as the capability deep-dives.
Tier · Retainer
Retainer
Ongoing support for assets already under Kraytek control.
Scheduled walkdowns on existing Allen-Bradley / packaging / OEM-orphaned assets.
Rapid-response recovery when the line is down and the OEM is gone.
Rapid triage — capture program logic, alarm hierarchy, and I/O map before the documentation itself goes cold.
Reverse-engineering when the original prints, ladder, and HMI source have vanished — reconstructed into documentation your maintenance team can actually read.
Replacement-panel retrofit when the control panel itself is past service life — terminal blocks, wiring, and power distribution end-to-end, mechanical footprint preserved, operator-interface language preserved.
Cutover with documentation handoff — current vendor stack underneath, line back under your operation’s control at every handoff.
Re-validation against 21 CFR Part 11 / OSHA where applicable, with the spare-parts plan that follows the asset, not the spec sheet.