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Best Window Quoting Software for Installers (UK 2026)

The best window quoting software does more than price a job — it helps you win it. For installers competing on the doorstep, the tool that lets the customer see and sign on the spot beats the one that emails a spreadsheet two days later.

What to look for

  • Photoreal renders — show the new windows and doors on a photo of the customer’s actual house, true to scale and colour.
  • A real product catalogue — pick from leading brands and products, not generic shapes.
  • Branded brochures — your logo and details wrapped around the renders, spec and quote.
  • Fast, itemised quotes and invoices — with VAT handled.
  • A free or low-friction way to try it before you commit.

Why visuals win the job

A quote is a number; a render is a decision. When a homeowner can see exactly what they’re buying, they say yes sooner and haggle less. Software that pairs the visual with the quote shortens your sales cycle.

Unformed combines photoreal renders, a catalogue of 45+ brands and 800+ products, branded brochures and quoting from £49/month — with a free render to try first. See how it compares, or learn how to quote a window job in under two minutes.

Design the unformed.

Render windows, doors and extensions from a single photo, check planning risk, and send a branded brochure, quote and invoice — everything you need to win the job, in minutes.