Need HVAC or Mechanical Plans for Your Permit?
HVAC duct layouts, equipment selection, ventilation design and heating and cooling load calculations – drafted in CAD and sealed by a mechanical engineer licensed in your state.
- Duct layouts, diffuser schedules and equipment schedules
- Heating/cooling load and ventilation calculations
- Kitchen hood, exhaust and make-up air design
- Serving All 50 States
- Sealed & Stamped
- Drawn In-House in CAD
- Quotes in 5-10 Min
Does Your Project Need Engineered HVAC Plans?
Commercial and tenant improvement projects almost always require engineered mechanical plans. Residential projects may need them for new homes, large additions or when a building department asks for load calculations to justify equipment size.
We tell you exactly what your jurisdiction needs before you order.
You Most Likely Need Mechanical Plans If You Are:
- Building out an office, retail or restaurant space
- Adding or replacing commercial HVAC equipment
- Installing a kitchen hood or exhaust system
- Building apartments or a new home that needs load calcs
- Changing a space's use or occupancy
- Being asked for Manual J, S or D calculations
What HVAC Design Do You Need?
HVAC Duct Layouts
Supply, return and exhaust duct design with sizes, diffusers and grilles.
Load Calculations
Room-by-room heating and cooling load calculations to support equipment sizing.
Ventilation Design
Outside air and exhaust calculations for commercial and residential occupancies.
Kitchen Hood & Make-Up Air
Commercial kitchen exhaust hoods, make-up air units and duct routing.
Equipment Selection & Schedules
Rooftop units, split systems, heat pumps and mini-splits scheduled for permit.
Energy Code Documentation
Mechanical compliance notes and forms for the energy code in your jurisdiction.
Mechanical Plans Your Reviewer Can Approve
Ducts, equipment and ventilation are designed from real load calculations and drawn on your floor plan, coordinated with electrical and plumbing.
- Mechanical floor plans with duct routing
- Equipment and diffuser schedules
- Load and ventilation calculations
- Exhaust and make-up air details
- Mechanical notes and specifications
- PE seal - digital or wet stamp
Pick your project type for details, typical requirements and pricing.
How Do I Get My HVAC Plans? 4 Simple Steps
1. Send Your Project
Address, scope and any plans, photos or plan-check comments.
2. Get a Fixed Price
Scope, price and delivery date in 5-10 minutes. Nothing starts until you approve.
3. We Design & Draft
Drawings and calculations prepared in CAD to your local code.
4. Ready to Submit
Sealed and stamped where required. PDFs (and CAD on request).
Your Questions About HVAC Plans, Answered
Why do permit offices ask for load calculations?
Load calculations show the heating and cooling equipment is sized to the building’s actual needs. Many jurisdictions require them for new homes, additions and equipment changes.
Do I need an engineer for a residential HVAC replacement?
Usually not for like-for-like replacements, which licensed contractors typically permit. New systems, large additions or jurisdictions that require load documentation may need engineered plans.
Do you design commercial kitchen hoods?
Yes – hood exhaust, make-up air, duct routing and coordination with fire suppression and gas piping.
Can you coordinate with my electrical and plumbing plans?
Yes. We can deliver all three MEP disciplines as one coordinated, stamped package.
Will the plans meet my local energy code?
We prepare plans to the energy code your jurisdiction has adopted and include the compliance notes reviewers expect.
How fast is the quote?
5-10 minutes on average through the quote form or live chat.
You May Also Need
How Much Will My HVAC Plans Cost? Price in 5-10 Minutes
Tell us about your project and upload any plans, sketches or photos you have. An engineer reviews every request personally and replies with a clear scope, price and delivery date – typically within 5 to 10 minutes.
- Reply within 5-10 minutes on average
- Clear price and scope before any work begins
- Seal by an engineer licensed in your project's state
- Architectural, structural and MEP under one roof
- Your drawings stay 100% confidential