Backed by Y Combinator
Your quantity takeoffs in minutes.
Not hours.
Upload your plan, our AI analyzes it and produces the complete quantity takeoff in minutes.
Constor detects
HVAC networks.
Watch your plan come to life.
They estimate
with Constor.
“A takeoff in minutes instead of hours.
The result: I bid on more jobs and I win more of them.”
Abilio Da Costa
Owner · A2C Isolation
“I used to spend my weekends doing takeoffs.
Now Constor does them in a fraction of the time, and I have my Saturdays and Sundays back. I am proud to see our trade move forward.”
Antonio Pires
Owner · Isol2a92
“Time saved, productivity gained, no mistakes.
What more could a business owner ask for? And above all, a team that cares and listens.”
Nuno Afonso
Owner · ANR Isolation
“A truly excellent tool that saves so much time.
Thank you for your professionalism and responsiveness. You can be proud of yourselves.”
Joël Pereira
Owner · Eurisol
“What stands out most is how serious they are, how well they listen, and how relentlessly they improve it.
Their drawing-reading software saves me real time every day: it automates and speeds up tasks that used to be long and tedious. I save a great deal of time, which I can now put into growing my company.”
Corentin Guzman
Owner · CG Isol
From your plan to your quote
in 4 steps.
If your team can open a PDF, they can use Constor.
Upload your plan
Drop your PDF file directly into the interface. No conversion, no plugin required.
Constor detects your quantities
Piping, ducts, surfaces, equipment — our AI identifies each element and extracts quantities automatically.
See your takeoff come to life
Once the takeoff is checked, Constor lifts your systems into 3D. Orbit around, check the routing, show it to the client.
Export your takeoff
Get a structured table, ready to integrate into your quote or ERP.
Stop wasting hours on your quantity takeoffs.
Book a 20-minute demo. We test Constor live.
Free · No commitment · Live results on your plans