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

No credit card. Live in 5 minutes — you put in your first project and your crew. If it doesn’t work for you, you just stop. Your data stays yours.

4.9

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

Zonder Klusmaat Met Klusmaat
09:00 — Additional work

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.

12:00 — Team coordination

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.

16:00 — Handover

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.

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We'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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