Skip to content
Bryntra
Book a demoLog in
Prefab extensions on a modern home, fitted by an installation team

Software for extension specialists

Extension software: one configurator, one price

Quote a complete extension: dimensions, roof build-up, façade layout with frames and sliding doors, interior and exterior finish. The extension configurator prices everything as one whole, fully installed, and plans the fitting days with it.

  • extension software
  • extension configurator
  • prefab extension quote
  • extension calculator
  • calculate extension price
At a glance

What is a prefab extension?

A prefab extension is largely factory-built and installed on site in days, not weeks. Quoting one involves many simultaneous choices: size, roof, frame layout and finish. Bryntra configures it in 3D and prices everything from one price book, installation included.

Why Bryntra for prefab extensions

  • Width, depth and height freely adjustable within your limits
  • Façade layout with frames, sliding doors and doors from the same configurator
  • Priced fully installed: foundation to finish as options
  • 3D model with roof overhang, fascia and lighting
  • Fitting days estimated automatically for team planning
  • On-site extra work straight onto the job card and invoice

Size & roof

The extension to size, within your limits

Set width, depth and height freely within the limits you define, and choose the roof build-up with overhang, fascia and lighting. Bryntra builds the extension parametrically in 3D, so the customer sees the volume that will be added to their home, and you stay within your structural limits.

  • Width, depth and height freely adjustable within your limits
  • 3D model with roof overhang, fascia and lighting
  • The same pricing engine as your verandas

Façade layout

Frames and doors from the same configurator

You fill the extension's façade with frames, sliding doors and doors from exactly the same configurator as your standalone products. Each façade section is priced correctly with your tables and formulas, so the extension quote is right down to the frame, without duplicate work.

  • Frames, sliding doors and doors from one configurator
  • Each façade section priced with your tables and formulas
  • AR: place the volume against the existing façade

Fully installed

From foundation to finish, all in the price

Price the extension fully installed: foundation, shell, roof, façade, interior and exterior finish come as priced options in one total. The customer doesn't get loose items to add up, but one branded quote they sign digitally, sealed with SHA-256.

  • Foundation, shell, roof and finish as priced options
  • One clear total, fully installed
  • Branded quote, signed digitally

Planning, fitting & invoice

Fitting days and extra work flow through

An extension spans several fitting days: Bryntra estimates them automatically and puts them on the planning board with the right team. On site the fitter completes the work order, and extra work flows straight to the order and the invoice, with UBL and instalments for larger amounts.

  • Fitting days estimated automatically for team planning
  • On-site extra work straight onto the job card and invoice
  • Invoicing with UBL and instalments for large amounts
What you configure
Sizing
Width, depth and height within your limits
Roof
Flat or pitched, with overhang and fascia
Façade layout
Frames, sliding doors and doors from the configurator
Finish
Foundation to interior/exterior, as priced options
Visualisation
Parametric 3D and AR against the façade
Invoicing
UBL and instalments for large amounts
Prefab extensions: an example of a finished project
In practice

This is how prefab extensions will look at your customer's home

How it works
  1. 01

    Set the size

    Width, depth, height and roof build-up within your limits.

  2. 02

    Fill the façade

    Frames, sliding doors and doors from the same configurator.

  3. 03

    Price fully installed

    Foundation to finish as options in one total.

  4. 04

    Quote & get it signed

    Branded quote with 3D and AR, signed digitally.

  5. 05

    Plan, install & invoice

    Fitting days scheduled; extra work and invoice flow through.

Features you'll useAll features →

FAQ

Questions about prefab extensions

Quick answers to the questions companies ask us most.

Which products can I configure in 3D?
Eight product families: window frames, doors, sliding windows & patio doors, bifold windows & doors, dormers, verandas, roller shutters and prefab extensions. Each family has its own parametric 3D model and pricing logic, from a tilt-and-turn window to a full extension.
Does the 3D configurator work on tablet or phone?
Yes, the configurator runs in the browser and adapts to your screen: the office on a big monitor, you at the customer's kitchen table on a tablet or phone. Nothing to install to configure and spin the model in 3D.
How does the AR view actually work?
Every 3D model automatically exports to AR files (GLB for Android, USDZ for iPhone). From the quote page or during the visit you open that file straight in the phone's camera, no separate app needed, placing a dormer life-size on the roof or a veranda in the garden, for example.
Does the configurator use my own prices or generic estimates?
Your own prices, always. You fill Pricing Management with combination tables, price formulas based on factory quotes, surcharges in € or % and installation hours; the configurator computes live from that. There's no generic national estimate or Bryntra margin in between: it's exactly your sales price.
What happens if a size falls outside my price table?
Bryntra interpolates within the bands you've entered, but a combination you've never priced, such as a slightly larger size or an option you haven't filled in, gets blocked rather than guessed. That way an accidentally wrong price never reaches a quote; you add the missing row once in Pricing Management and it works from then on.
Is the 3D configurator included in every plan?
The 3D configurator and its pricing engine are included from Professional (€249/month) upwards, so also in Complete. Starter works with quotes built from free lines and your product list, without the parametric 3D view. The AR showroom is part of Complete.

Get started

Ready to quote prefab extensions faster?