More work than your team has hours for? CoreX is the MEP production capacity you add project by project — delivering coordinated, code-compliant HVAC, electrical, and plumbing documents prepared to the agreed scope and jurisdiction for the licensed Engineer of Record on your project.
Outsourced MEP is project-based production capacity — not a standing commitment. When your pipeline exceeds what your team can carry, you can hand off one discipline or the full coordinated set. We return it modeled, clash-checked, and prepared for the project engineer of record’s review, seal, and permit submission. You define the scope and submission date, and scale support back when the surge passes. We follow the same documented code-review process as a full in-house package, while the project’s Engineer of Record retains responsibility for the basis of design and final seal.
We Back
Your Promise.
Quality MEP design.
Behind your brand.
You Win
More Work.
Bigger projects.
Stronger client relationships.
Capacity that shows up when you're already underwater — scope and dates locked before we touch a sheet.
Modeled against your backgrounds, clash-checked on screen, and reviewed and sealed by the licensed engineer of record on your project.
A complete, coordinated MEP package — one discipline or the full set — modeled, clash-checked, and documented so the engineer of record on your project can review and seal.
Quick answers about how overflow design support works by the project.
The licensed Engineer of Record designated for the project reviews and seals the final engineering documents. CoreX prepares the coordinated design package, calculations, and basis-of-design information under that licensed engineer's direction, for review under responsible charge. CoreX does not seal or stamp drawings and is not the engineer of record. Under this outsourced service, CoreX provides production capacity only; it does not replace the project's Engineer of Record or provide the sealing engineer.
Either — you scope it by the project. If your bench is short in only one trade, send that one discipline and keep the rest in house. If you need the whole package produced, send the full MEP set and we clash-check the MEP trades together before it reaches the engineer of record on your project. The hand-off can be schematic-to-CD or CD-only, single jurisdiction or a multi-state portfolio.
Onboarding can move quickly once the scope, required inputs, jurisdiction, deliverable list, and target dates are confirmed. Because outsourced work is scoped by the project, we document those items at kickoff and build a production schedule around the agreed milestones. The exact start and delivery timing depends on project size, complexity, and the completeness of the information provided. We reply within one business day.
We confirm the AHJ's adopted code editions up front — the IBC, IMC or UMC, IECC, ASHRAE 90.1 and 62.1, NEC, IPC, UPC or NSPC, IFGC or NFPA 54 — plus the state codes and local amendments for that jurisdiction, because those drive ventilation rates, energy paths, and sizing. For a multi-state portfolio we track the adopted editions by location to reduce plan-check comments and avoid rework caused by applying the wrong code basis.
That's your decision, within your client agreement. CoreX works under your brand. Your deliverables follow your title block, layer standards, and CAD/Revit template, with the work reviewed under the agreed QA/QC and code process. The engineer of record on your project reviews and seals the set; CoreX provides the production capacity behind it.
Yes. We review AHJ comments, contractor RFIs, and submittal questions; prepare an itemized technical response matrix; and revise affected sheets, calculations, schedules, specifications, and supporting narratives. We provide an issue-ready response package for the engineer of record to issue, within the agreed project workflow.
Outsourced capacity and white-label delivery aren’t alternatives: outsourced is how the capacity is supplied, white-label is whose brand the set carries, and one engagement can be both. See how white-label delivery works →
"When our workload grew, CoreX let us scale up without the quality dropping. They communicate clearly, they meet their deadlines, and their sets are detailed enough that our engineers and our clients both trust them."
"Their work has been better than we expected, and it has stayed that way. Their certified HVAC and plumbing designers know the code, think about how the job will actually get built, and coordinate across disciplines. At this point they work like part of our own design team."
"CoreX has become a dependable production partner on our commercial work. HVAC, plumbing and electrical come in coordinated, clearly documented and on time. They understand how a U.S. consulting firm runs, so they fit our workflow instead of us adjusting to theirs."
"What impressed us most is their discipline. They follow a real design process and raise coordination issues early, before they turn into problems. Their electrical team is responsive and careful with code. Their sets need noticeably fewer review rounds, and our internal QA runs much more efficiently because of it."
"CoreX delivered our HVAC package ahead of schedule without cutting corners on quality. They were thorough and quick to respond, so coordination with our team was easy and we had fewer revisions during design. We’d recommend them without hesitation to any MEP firm looking for a dependable partner."