How much does additional work cost you in disputes per year?
11,100 construction disputes in 2023 — 36% more than the previous year. Most are about additional work that was verbally agreed but never documented in writing.
Stichting Achmea Rechtsbijstand (SAR) 2023
11,100
Construction disputes
construction disputes in 2023. Most about additional work.
SAR 2023
85%
Over budget
of construction projects go over budget. 32% due to estimation errors.
McKinsey
2x
Compliance pressure
quality assurance + contractor enforcement simultaneously. Double compliance pressure since 2024/2025.
Government
A day with Klusmaat
You discover a problem. Verbally agreed: "I will calculate it." Customer denies it later.
Photo + voice = digital change order. Customer approves via client portal with timestamp. Proof that holds up.
WhatsApp group with 12 messages. Who is doing what? When is the tiler coming?
Schedule per technician with certifications and availability. Tiler sees their tasks in their own work order.
No dossier. Customer finds a crack 3 months later. Reversed burden of proof.
Quality-compliant handover dossier: photos per phase, checklist, signature. Automatically generated while you worked.
How Aannemers use Klusmaat
New-build home
Multi-week project with subcontractors. Quality dossier builds automatically. Installment invoices per phase.
Bathroom renovation
Quote with completeness check. Change order protocol for surprises. Handover with before/after photos and signature. Invoice automatically.
Sustainability project
Coordination between installer, insulation contractor, and roofer. Schedule with multiple tradespeople and phases. Total invoice with partial payments.
Currently in early beta with 18 installers in the Randstad.
Want to be the 19th? You get personal guidance and 3 months free.
Become a beta tester →Questions from Aannemers
Overview of all your projects — without spreadsheets
Try Klusmaat free for 14 days. No credit card needed. Cancel monthly.
