Free HVAC tools
- free tools
- 7
- Counted across the tools on this page
- figures they ask you for
- 51
- Counted across the tools on this page
- answers they give back
- 40
- Counted across the tools on this page
- HVAC maintenance checklist, on the worked example
- 68
- Counted across the tools on this page
Every tool computes its answer on the page, free, with no account and no trial clock. The paid plan is about keeping what you make.
Every figure on this page is computed from the inputs you enter, by the method stated below it. CoilDesk publishes no market averages and quotes no survey: the defaults are a worked example to replace with your own.
- HVAC maintenance checklist Build the checklist for a tune up or a full annual service, with the time and cost of the visit. Free tools
- HVAC invoice software Raise a service invoice: call out fee, labor, marked up parts, tax, and the balance due. Free tools
- HVAC service agreement template Price a maintenance agreement: what the visits cost you, what the discount costs you, and what to charge. Free tools
- HVAC quote software Price a whole install as a quote: equipment, materials, labor, permits, markup, tax and the deposit. Free tools
- HVAC trunk line calculator Turn tonnage into CFM, then into the trunk and branch sizes that carry it quietly. Free tools
- HVAC labor rate calculator Build a flat rate price from your own wage, burden, overhead and margin, one task at a time. Free tools
- HVAC pricing calculator Price a system install from your own costs: size it from the floor area, price the equipment and ductwork, add your labor and margin, and see the number to put on the quote. Free tools
Cite or embed this figure
HVAC maintenance checklist (Checklist items): 68, CoilDesk, worked example.
Cite as: "CoilDesk HVAC Tools", updated 2026-10-08, https://coildesk.com/tools/.