Quotes out the same day
Describe the job and the AI drafts the scope and equipment options, so a professional quote goes out while the tech is still on site.
HVAC proposal software for install and service teams. Duodeal turns the quote into an interactive proposal — good-better-best options the homeowner picks, clear pricing, and e-signature in one link.

Trusted by service teams worldwide
Trusted by service teams worldwide




























The best HVAC quotes let the customer choose. Duodeal turns your estimate into an interactive proposal with good-better-best equipment tiers the homeowner explores and selects — a clear total, financing notes, and a signature captured before they call another company.
Describe the job and the AI drafts the scope and equipment options, so a professional quote goes out while the tech is still on site.
Good-better-best options the customer toggles, with the total updating live — you land the upgrade without a follow-up call.
E-signature in the same link plus open tracking, so you know the moment a quote is read and when to follow up.


From 8 days to 1
“With Duodeal, sending a quote has become simple, fast, and perfectly aligned with our brand. Our clients immediately notice the difference.”
Romain O. · Managing partner Italy @Fitness Park
Yes. Offer tiered system options (good / better / best) the customer compares and selects, with the total updating live and add-ons as optional lines.
Yes. Duodeal runs in the browser on mobile, so you can build, send and get a quote signed from the customer's home — no desktop needed.
It's software for building, sending and signing the quotes HVAC install and service teams use to win jobs. Duodeal turns them into interactive proposals with good-better-best options and e-signature.
Yes. Present tiered equipment and service options the homeowner toggles themselves; the total updates live and you capture the upgrade without another call.
Yes. Proposals are interactive web pages that open on any device, so a homeowner can review and sign from their phone while the tech is on site.
Try Duodeal free for 15 days and send an HVAC quote that closes.
No credit card · 15-day trial · Built for service teams