u/DoorWinTr — reddlx

Hi everyone,

I work in the PVC/uPVC window & door business. Usually, we take measurements on-site and then go back to the office to calculate everything manually.

The problem is… it takes too much time.

I’m looking for a more practical way to:

👉 Draw a PVC window or door
👉 Automatically calculate profiles, glass, and accessories
👉 Instantly get the total cost

Ideally, something that supports:

Sliding / single / double opening systems
Glass combinations (like 4+16+4 double glazing)
Color differences (white vs colored frames)
Adding profit margin and generating a quotation

Right now, doing everything manually or in Excel is really inefficient.
It would be amazing to give customers a price directly on-site.

Do you guys use any software, mobile apps, or tools for this?

Would love to hear your workflow or recommendations 🙏

Hey everyone,

I’ve been working on a mobile app designed for professionals in the construction industry — mainly for designing PVC & aluminum windows/doors, calculating costs, and generating instant quotes.

The idea is simple:
👉 Draw the window/door
👉 Get exact measurements (mm precision)
👉 Instantly calculate cost & profit
👉 Generate a professional quote on-site

It’s built to replace manual calculations and speed up the workflow for manufacturers and installers.

But I’m curious from a design & UX perspective 👇

What would you improve in this kind of app?
What features would make it feel more “premium” or easier to use?
Any UI patterns you think would fit better for technical drawing apps on mobile?

I’ll drop some screenshots in the comments.

App link (if allowed): https://doorwin.app

Really appreciate any feedback 🙌