Plumbing installation in a fit-out project covers water supply and drainage routing, fixture installation, and — for commercial kitchens — grease trap and specialized drainage requirements, all of which need to be finalized against the architectural layout before flooring and wall finishes begin.
Plumbing changes are among the most disruptive to make after finishes are installed, since they often require breaking through completed flooring or walls.
Supply and Drainage Planning
Pipe runs should be planned for both efficiency (shortest practical routing) and future maintenance access — plumbing buried without any access consideration creates expensive repair problems years later.
Fixture Selection and Installation
Fixture choice (sinks, toilets, showers) affects rough-in requirements, so fixtures should be selected before rough-in plumbing is finalized, not after — a common source of costly late-stage changes.
Commercial Kitchen Plumbing Requirements
Restaurant and commercial kitchen plumbing requires grease trap installation and drainage that meets specific capacity and compliance requirements — these should be scoped with the kitchen equipment layout, not as generic plumbing.
Water Efficiency Considerations
Low-flow fixtures reduce water costs without a noticeable difference in performance for most residential and commercial applications, and are increasingly a standard specification rather than a premium option.
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Before rough-in plumbing is finalized, since fixture choice affects rough-in requirements.
Grease trap installation and drainage capacity that meets commercial kitchen compliance requirements.