LoadCalcs logoLOADCALCS

For hvac contractors

Your load calc department, without the payroll.

You sell and install. We size and document. Send plans or a sketch, get permit-ready Manual J, S and D back, and keep your crews on jobs instead of waiting on paperwork.

Win the bid honestly

A Manual J beats the competitor who quoted by square foot. One contractor watched a rival bid 25 tons where the load called for 9.

Replacements too

Changeouts are where rule-of-thumb sizing does the most damage. We work from photos and measurements when there are no plans.

Volume without friction

Repeat accounts send plans by email and get the same designers each time. Several contractors send us work every month.

We do not sell equipment

No reason to upsize, no conflict with your distributor. We select from the line you carry.

“This is an outstanding company to work with. We have several Manual J, D, S done by this company on a monthly basis. Always responsive and hit deadlines. Not to mention their work is top shelf. I will use them for all my future load needs.”
TCTyler C. · Google review
Free guideOutsourced HVAC design: a guide for HVAC professionals.

Services hvac contractors order most

Same-day quotes

Drop the plans. Get a quote today.

Drop in the plan set and pick your services. A designer replies with price and turnaround, usually within 30 minutes during business hours.

Fast quote

Drop your plans. Get a quote.

PDF or photos of the plan set. Pick your services and send. A designer replies with price and turnaround.

    Services
    Price$0

      A designer reviews every plan set and replies with price and turnaround, usually within 30 minutes during business hours. Nothing is charged until you approve.