Why generic quote tools don't work for window installers
Tools like Jobber, ServiceTitan or a generic quoting app are built for “the average contractor”. For a window installer that means daily workarounds: working out the VAT scenario by hand, no frame-specific configurator, no e-signature adequate for a €8,000+ B2B approval, and no way to split a quote into a deposit and instalments. Your time goes into checking the quote, not making it.
Kozynofferte starts the other way around: we designed it together with window installers, and we deliberately chose not to include project planning, time tracking or purchasing. That belongs in Bouw7, AFAS, ServiceTitan or your own ERP. We do one thing well: from first customer contact to digitally signed approval with deposit and instalment instructions, in under an hour of work.
What's in our quote software?
- Visual frame configurator — 32 standard frame types (tilt-turn, sliding door, fixed glass, folding wall, etc.), choice of aluminium / uPVC / timber, all common RAL colours, double / triple / acoustic glass, security hardware. Live pricing as you configure.
- Branded PDF quote — your logo, colours, intro text and terms attached as appendix.
- Two-step e-signature — customer receives a unique link, opens the portal in your branding, signs with finger or mouse. Audit log with IP, timestamp and geolocation. Legally binding under EU eIDAS.
- Deposit and instalments by bank transfer — 30% down-payment at approval, balance after delivery. Your customer gets IBAN, amount and reference in the portal; no payment provider taking a cut.
- Dutch VAT built in — pick the scenario per quote: 21% standard, the 9% renovation rate for Dutch homes older than 2 years, or domestic reverse-charge between contractors (art. 12(5) Wet OB). The quote and invoice carry the required wording. Rates for other countries are not modelled.
- Customer portal with live status — customer sees progress from approval → production → delivery → installation. No more “how's it going” emails.
- AI photo analysis — take photos on-site, AI identifies existing dimensions and suggests an initial configuration. Saves 10-15 min per measurement.
Who is this for?
- Single-person window installers making 1-3 quotes per week
- Small teams (2-10 people) with a sales rep and installation crew
- Glaziers who do both supply and installation
- Renovation and installation businesses focused primarily on window/door work
- Multi-location window businesses (up to ~20 people) seeking consistency across sites