Contractor-ready HVAC design

Accurate load calculations.
Better installs.

Manual J, S, and D design built for contractors who need dependable answers, responsive support, and reports ready for the field.

✓ 24–48 hour turnaround✓ Field-informed design✓ Clear, professional reports
PROJECT SUMMARYResidential Load Analysis
COMPLETE
HEATING LOAD48,620BTU/h
COOLING LOAD31,840BTU/h
Room-by-room analysisDesign conditions verified
DESIGN CHECKReady for equipment selection
01Fast turnaroundKeep projects moving with a clear, reliable workflow.
02Real-world insightDesigned with installation and airflow in mind.
03Contractor supportAnswers and revisions when the job changes.
04Professional reportsClean documentation for permits and clients.
Design services

From load to right-size.

Choose the calculation package that fits the project. Every design starts with careful inputs and ends with a practical, contractor-ready deliverable.

J

01 / LOAD

Manual J

Room-by-room heating and cooling load calculations sized to the actual home.

  • Heating & cooling loads
  • Room-by-room breakdown
  • Design condition summary
Start Manual J
J+S+D

03 / SIZE

Complete Sizing Package

Loads, equipment selection, and duct sizing based on a contractor-supplied measured sketch.

  • Manual J and S
  • Room airflow requirements
  • Duct sizing only
Start sizing package
Why it matters

Good design prevents expensive callbacks.

Comfort problems usually start long before startup. LoadPro helps contractors catch them on paper—before they become field problems.

Build it right the first time
01Oversized equipmentShort cycling, poor humidity control, wasted energy.
02Undersized ductworkHigh static pressure, noise, and low airflow.
03Unbalanced roomsHot and cold calls that cost time and trust.
A simpler workflow

Measurements in. Answers out.

A straightforward process designed around residential contractors. Blueprints are welcome, but they are not expected.

01

Send the project

Enter room measurements in the guided intake or provide a simple measured sketch.

02

We design

We review, calculate, and flag anything that needs clarification.

03

You install

Receive clear reports and move forward with confidence.

Straightforward pricing

Choose your deliverable.

Transparent starting prices for residential projects. Complex homes and rush service may require a custom quote.

MANUAL J

$275

per project
  • Room-by-room calculation
  • Heating and cooling loads
  • Professional PDF report
  • Standard turnaround
Choose Manual J

J + S + D

$550

starting at
  • Complete J and S package
  • Room-by-room airflow
  • Duct sizing from supplied route
  • Design support
Choose sizing package
Built for repeat business

More projects.
Better pricing.

Contractor accounts reward consistent volume with preferred rates, faster service, and flexible prepaid project packs.

Ask about contractor accounts
BRONZE1–5jobs / month
SILVER6–15jobs / month
GOLD15+jobs / month

Prepaid packs available in 10, 20, and 30 projects.

Start your next project

Ready for a better design workflow?

Tell us what you’re working on. We’ll confirm the scope, required information, price, and turnaround.

✉ info@loadprohvac.com⌁ No blueprints required — guided measurements accepted