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 $39/month (1 user; add teammates at your plan’s per-seat rate). 0% platform fee on payments.
Built around how hvac contractors actually work
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.
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.
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.
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 (Pro plan and up)
- Permits tracked with expiry reminders for mechanical inspections (Pro plan and up)
- Free business page that captures “AC died” leads — no per-lead fees
The photo trail that ends “you never told me” calls
Every panel, fixture or unit photographed from the phone, timestamped and attached to the job. When a customer disputes a change, HVAC contractors open the log instead of arguing from memory — and the customer sees the same photos in the portal (daily logs and the portal are on Pro and up).
How FieldsHub works for HVAC contractors
Estimating
AI-drafted, three-tier, line-item estimates priced the way HVAC contractors actually bid.
Read more →FeatureInvoicing & payments
Deposit, progress and final invoices for HVAC contractors, paid online with a 0% platform fee.
Read more →FeatureChange orders
Price the “while you’re here” request on site and get written approval before HVAC contractors do the work.
Read more →IncludedFree business page
Your own lead-capturing page for HVAC contractors — services, reviews, quote form — with no per-lead fees.
See how it works →Guides for HVAC contractors
The Contractor's Guide to Getting Paid Faster
Late payments hurt your cash flow and your business. Learn how digital invoicing, online payments, and automated reminders can dramatically reduce your days-to-payment.
Read →Guide · 5 min readWhy Every Contractor Needs Digital Time Tracking
Paper timesheets are costing you money. See how GPS-verified digital time tracking eliminates buddy punching, reduces payroll errors, and gives you real labor cost data.
Read →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 — with users included in the plan and extra seats at a flat per-seat rate. FieldsHub covers that from $39/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.
Price tonight’s bid in 10 minutes
15-day free trial. No credit card. Cancel anytime.