For HVAC

Estimating & invoicing software built for HVAC contractors

Quote changeouts, mini-splits and duct jobs in minutes with AI that knows HVAC scopes — then invoice and get paid from the same app. From $19/month for your whole crew. 0% platform fee on payments.

Free HVAC estimate calculator
Sound familiar?

Built around how hvac contractors actually work

01

Good/better/best sells systems

The 14-SEER budget option, the 16-SEER sweet spot, the heat-pump upgrade — HVAC has always sold in tiers. FieldsHub generates the three-tier proposal automatically so every quote upsells itself.

02

Summer chaos, winter books

In July nobody has time for paperwork; in January you find the unbilled jobs. Estimates, invoices and payments happen on-site in minutes, so busy season doesn’t leave money behind.

03

Financing-sized invoices

A $12k system replacement shouldn’t wait on a mailed check. Collect deposits online the day they sign, invoice the balance at startup — card or ACH, 0% platform fee, automatic reminders.

One app

Everything between “can you quote this?” and “paid”

Estimate → invoice → paid

  • AI quotes for changeouts, mini-splits, duct runs and IAQ add-ons
  • Three-tier proposals (standard / high-efficiency / heat pump) built in
  • Deposit + balance invoicing with online card/ACH payment, 0% platform fee
  • Automatic reminders so the final 50% doesn’t drift

Run the crews & the calls

  • GPS time tracking across install and service crews
  • Photo daily logs — nameplate, lineset, startup readings documented per job
  • Permits tracked with expiry reminders for mechanical inspections
  • Free business page that captures “AC died” leads — no per-lead fees
FAQ

HVAC Contractors ask us

What’s the best quoting software for a small HVAC company?+
Small HVAC shops need fast three-tier system proposals, deposit-then-balance invoicing with online payment, and crew time tracking — priced per company, not per tech. FieldsHub covers that from $19/month with a 0% platform fee on payments. Shops centered on maintenance agreements and dispatch boards may also evaluate dedicated field-service platforms.
Can it quote a full system replacement?+
Describe the job (“3-ton gas furnace + AC changeout, attic air handler, new pad and disconnect”) and the AI drafts equipment, materials, labor, permit and startup line items. Your equipment costs and labor rates apply — review, tier it, send.
Does it work for service calls too?+
Yes — one-line service invoices with online payment links for repairs and diagnostics, alongside full proposals for replacements and new installs.

Calculator figures are ballpark ranges from national averages — real jobs vary by region, access and scope. See how FieldsHub compares to other tools on the comparisons page.