Manual J, D, S & N Reports • Mechanical Drawings • PE-Sealed Submittals
Team Featured On
Engineering HVAC Systems That Perform — and Pass Code
EOS Labs is a licensed engineering firm specializing in HVAC system design and documentation for residential and commercial construction. We deliver precision-calculated Manual J, D, S & N reports, and provide full mechanical design drawings for code compliance, energy performance, and permit approval.
Services We Offer
Residential HVAC Design
- Manual J – Load calculations
- Manual D – Duct layout and sizing
- Manual S – Equipment selection
- Manual N – Commercial Load Calculation, Delivered sealed, stamped, and ready for AHJ submittal.
Commercial HVAC Design
- Full mechanical HVAC construction sets
- Equipment schedules and control diagrams
- Design support for Energy Star, LEED, IECC, and Title 24 compliance
We collaborate with MEPs, architects, and developers to ensure code approval and project success.
Our Approach
At EOS Labs, engineering drives everything we do. Our licensed professionals apply best-in-class design principles to meet mechanical code requirements, enhance energy efficiency, and streamline the permitting process.
We understand the needs of builders, developers, and project managers — and we design with field realities in mind.
Why EOS Labs?
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Credentials
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Professional Engineers - PE
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Certified Energy Manager – CEM
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LEED ACP(BD+)
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PhD
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ISO 9001 Auditor
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RFMP and more
Licensed & Trusted
EOS Labs is trusted by builders, architects, and permit expeditors across the U.S.
Professional Affiliations
State Licensure Coverage
Licensed in Texas, Nevada, and other major permitting states.
(Additional coverage available via partner engineers.)
All documents sealed by licensed Professional Engineers (PEs).
Let’s Talk HVAC Design
Whether you need a single Manual J report or a full mechanical drawing set for a commercial project, EOS Labs is ready to support you.
HVAC Design Services Built for Builders, Powered by Engineers
At EOS Labs, HVAC design isn’t an afterthought — it’s the foundation for code compliance, performance, and lifecycle savings. We provide engineered HVAC system designs that meet the most stringent code requirements, pass permit review the first time, and align with real-world construction needs.
Whether you need Manual J, D, S, and N reports for a residential project or a full mechanical design package for commercial construction, our team of licensed engineers ensures your HVAC systems are designed for precision and built for efficiency.
Our HVAC Design Services
Residential HVAC Design
- Manual J HVAC Load Calculations
- Manual D Duct Design and Layouts
- Manual S Equipment Selection
- Manual N Commercial Load Calculation
We deliver sealed, stamped, and AHJ-ready documentation for new builds, additions, and remodels — typically within 2–3 business days. Each report is based on ACCA standards and reviewed by a licensed Professional Engineer.
Commercial HVAC Design
- Full mechanical HVAC construction drawing sets (AutoCAD or Revit)
- HVAC zoning layouts, equipment schedules, control diagrams
- Integration with Title 24, IECC, Energy Star, and LEED requirements
- Coordination with MEP consultants, architects, and design-build contractors
We ensure your plans are compliant, coordinated, and construction-ready.
Our Proven Design Process
1.
Project Intake & Scope Alignment
We start with a detailed intake form and a short consultation to gather project specs, drawings, and local code requirements.
2.
Preliminary Review
Our engineers review your site plans, loads, and occupancy conditions to define zoning and equipment assumptions.
3.
HVAC System Design & Calculations
We run Manual J/D/S/N calcs or produce full HVAC design drawings based on your scope. All work is based on ACCA Manual standards, ASHRAE guidelines, and local energy code.
4.
Quality Review & PE Seal
Every deliverable is reviewed and sealed by a licensed Professional Engineer. Stamped PDFs are ready for submittal to your local AHJ.
5.
Permit Support & Revisions
Minor revisions to address inspector feedback or builder updates are included at no extra cost.
The Benefits of Expert HVAC Design
Pass Permits Faster
Avoid costly resubmittals and delays — we know what building departments look for.
Built-in Energy Efficiency
Designs that meet or exceed IECC, Energy Star, and LEED requirements — supporting rebate programs and long-term savings.
Right-Sized Systems
Proper loads and ductwork = no overspending on equipment, no homeowner complaints.
Sealed by Licensed Engineers
All documentation is signed, sealed, and state-compliant — no generic software reports here.
Scalable for Builders & Developers
Need dozens of reports per month? We support high-volume production builders with efficient workflows and bundled pricing.
Who We Serve
Our Proven Design Process
From intake to stamped submittals – engineered for speed, accuracy, and code compliance
Ready to Get Started?
EOS Labs makes it simple to outsource HVAC design without sacrificing accuracy or accountability.