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

Fast estimates

Send the plans. Get an estimate.

Send us your questionnaire and plans, and we’ll get you an estimate right away. Reach out during office hours and you’ll hear back within 30 minutes, whether it’s an email, text or call.

Fast estimate

Drop your plans. Get an estimate.

PDF or photos of the plan set. Pick your services and send.

    Services

    Reach out during office hours and you’ll hear back within 30 minutes, whether it’s an email, text or call. Have every detail handy? Fill out the full project questionnaire.