Job done = admin done
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
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Already used by 231 businesses
368 quotes created with our free tool
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?
Scheduling per tradesperson and subcontractor, with availability and certificates. The tiler sees his tasks in his 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
A project spanning several weeks with subcontractors. The quality-assurance file builds itself automatically. Instalment 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.
Not about to take anything on faith? Fair enough. Type a job — say a bathroom renovation with demolition, tiling and an extra-work line — and see in 30 seconds how Klusmaat turns it into a complete quote. No account, no email.
Try the free quote toolWe're building Klusmaat now — with contractors
Klusmaat is used by tradespeople across the Netherlands. The promise is simple: job done = admin done.
As a founding contractor you get 3 months free plus personal guidance, with a direct line to the team. Limited spots.
Become a founding user →Questions from Aannemers
Overview of all your projects — without spreadsheets
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