Plumbing Engineering Design
Reliable Systems.
Seamless Coordination.
Led by CPD-certified designers (ASPE), our plumbing team engineers domestic water, sanitary, storm, and specialty systems to IPC/UPC (with fuel gas to the IFGC/NFPA 54). From fixture-unit calculations to riser diagrams, every package is BIM-coordinated with structure and mechanical — delivering clean, constructable documents for everything from restaurants to high-rise residential.
Domestic Plumbing System Design
CoreX engineers reliable, code-compliant domestic plumbing systems designed around fixture demand, pressure requirements, and building use — ensuring clean water delivery, efficient drainage, and seamless coordination with all disciplines.
- Cold & hot water distribution system design
- Sanitary drainage, waste & vent (DWV) layouts
- Fixture-unit calculations & pipe sizing
- Backflow prevention & cross-connection control
- IPC/UPC & local code compliance
- BIM-coordinated routing with structural & mechanical systems
Riser & Piping Systems
We design water, sanitary, and gas riser systems for both full replacement and new construction — using phased construction strategies that minimize disruption and deliver durable, long-lasting piping designs.
- Water, sanitary & gas riser design & replacement
- Phased replacement planning for occupied buildings
- Pipe material selection & corrosion assessment
- Isolation valve & maintenance access strategy
- Roof drain, storm leader & overflow drainage design
- Pipe expansion, water-hammer arrest & support details
Hot Water & Pressure Systems
Our engineers size and design hot water and pressure systems that deliver consistent performance across all floors and fixture groups — balancing energy efficiency, occupant comfort, and long-term infrastructure reliability.
- Water heater sizing & selection (tank & tankless)
- Hot water recirculation & energy-efficiency design
- Pressure booster pump system design
- Pressure-zone planning for multi-story buildings
- Recovery rate & peak-demand analysis
- Thermostatic mixing & scald protection (ASSE 1017/1070)
Specialty Plumbing Systems
Beyond standard systems, CoreX provides engineering for specialty plumbing applications — designing code-compliant solutions for food service, healthcare, industrial, and commercial facilities with complex requirements.
- Grease waste & interceptor design for commercial kitchens
- Compressed-air & industrial vacuum piping
- Water treatment, filtration & RO/DI systems
- Rainwater harvesting & greywater reuse
- Pool & spa equipment coordination
- Specialty fixture & equipment connections
Independent Review & Construction Support
Beyond design, CoreX brings independent review and construction-phase support to your projects — peer review of plumbing documents, plan review support for city projects, and construction administration that keeps designs accurate, code-compliant, and buildable from permit through construction.
- Peer review of plumbing design documents
- Plan review support for city projects
- Construction administration support (RFIs, submittals & shop-drawing review)
- Code compliance and constructability review
- Value engineering & cost-reduction review
- Plan-check comment response and resubmittal
For plan-review services on city projects, the client must be certified by ICC as a Plumbing Plans Examiner.
Accurate plumbing design backed by industry-standard engineering and modeling tools.
Quick answers about how we deliver plumbing design support.
IPC or UPC depending on your project’s jurisdiction, plus all state and local amendments. We confirm the applicable code edition and AHJ requirements during pre-design — so there are no surprises at plan check.
Yes. Every plumbing set includes water, sanitary, vent, storm, and gas riser diagrams along with fixture-unit calculations, pipe sizing, fixture schedules, and details — everything a plan reviewer or contractor needs.
Yes. We design grease waste and interceptor systems for commercial kitchens, compressed-air and treated-water systems, booster pump and pressure-zone systems for high-rise buildings, and storm and site drainage coordination.
All plumbing routing is modeled and coordinated in Revit and BIM 360 with clash detection in Navisworks — so pipe runs respect structure, ductwork, and ceiling space before construction begins, not after.
Yes. Many of our clients are consulting firms and architects who bring us in for overflow or full-scope plumbing work. We produce to your templates, title blocks, and standards so the set reads as your own, and we coordinate directly with your project leads throughout.
CoreX works as a design support partner: we produce the complete calculations and construction documents, and the licensed engineer of record for your project reviews and seals the final set. You stay fully in control of the engineering responsibility while we carry the production load.
Architectural floor plans (CAD or Revit), the building’s use and occupancy, fixture counts or program, project location, and any owner or jurisdiction requirements. From there we confirm scope, deliverables, and milestones — typically within one business day — and begin with fixture-unit calculations and pipe sizing.
Yes — we respond to plumbing RFIs, review submittals and shop drawings against the design intent, and issue clarification sketches and revisions as construction progresses.
Sectors we design Plumbing for
Have a Project in Mind?
Core Engineering. X-pert Execution.
Tell us your scope and timeline — we’ll confirm deliverables and milestones, usually within one business day.