What we deliver

Load calculations and equipment sizing done right.

A proper HVAC design starts with accurate load calculations. Oversized equipment wastes money, short-cycles, and fails to control humidity. Undersized equipment can't keep up on peak days. We calculate it correctly so your system performs as intended.

Manual J

Room-by-room heating and cooling load calculation based on your home's plans, insulation levels, window specs, orientation, and climate zone. The foundation for everything else.

From $200
Based on square footage

Manual S

Equipment selection that matches your Manual J loads. We identify the right capacity, efficiency ratings, and system type to meet your heating and cooling requirements.

From $90
Per system

Manual D

Duct design that delivers the right amount of conditioned air to each room. Available for compliance purposes or as a detailed construction-ready design.

From $150
Compliance from $150 · Construction from $300
How it works

From plans to report

01

Get pricing

Use our pricing calculator to get an instant quote based on your project's square footage, number of systems, and the services you need.

02

Upload plans

Submit your construction plans along with any available specs for insulation, windows, and mechanical ventilation. We'll review and send an agreement to e-sign.

03

We run the numbers

Our team performs the calculations and prepares your reports. If anything needs clarification — like a discrepancy between plans and submitted info — we'll reach out.

04

Reports delivered

You receive your completed Manual J, S, and/or D reports, typically within 2 business days. Complex homes may take up to a week.

Ready to get started?

Get instant pricing and submit your project in a few minutes.

Get Started →
Services
HVAC Design Quality Assurance Energy Modeling EPCinEnglish.be
Company
About Contact Get Started
© 2026 enerBLD BV
KvK 96342900
VAT NL867570544B01
building · energy · efficiency