Profit leaks away into the black hole called 'Extra Work'.
Keep grip on your projects, your subcontractors and your margins. AI centralizes all your communication and agreements.

500+
Professionals
10,000+
Invoices sent
15+
Integrations
3
Countries
Real-time cost tracking per project: hours versus budgeted, materials versus estimated, subcontractor costs versus budget - all on one screen. Running over? You know while you can still adjust. Subcontractors get their own portal with tasks, deadlines, and photo sign-off.
Progress invoices automatic: set payment schedule (30% at start, 40% at shell, 30% at handover) and Klusmaat generates the invoice when you mark the milestone. Site meetings prepared with project overview on your tablet.
Familiar challenges
These are the problems Contractors face daily
WhatsApp chaos
Important agreements about changes getting lost in 10 different group chats.
Invisible extra work
'Can you fix this too?' at the end of the day, but it never gets invoiced.
Subcontractor stress
Your tight schedule collapses because of overruns or silence from your subcontractors.
Actual vs. estimated costs
You only find out after a project whether it was profitable. By then it's too late to adjust.
A day with Klusmaat
This is what a workday looks like for a Contractor using Klusmaat
Project Radar
AI overview with your first coffee: who's where and who's running critically behind?
Site meeting
On-site with the client. Klusmaat on your tablet: progress per phase, open items, yesterday's photos.
AI Minute-taker
AI summarizes the site meeting and all agreed action items directly.
Extra Work Safety Net
A change? AI sends confirmation to the client and subcontractor immediately. Documented with photo.
Dashboard Check
Your current cash flow and project progress across all jobs at a glance. Progress invoices sent automatically.
Project Radar
AI overview with your first coffee: who's where and who's running critically behind?
Site meeting
On-site with the client. Klusmaat on your tablet: progress per phase, open items, yesterday's photos.
AI Minute-taker
AI summarizes the site meeting and all agreed action items directly.
Extra Work Safety Net
A change? AI sends confirmation to the client and subcontractor immediately. Documented with photo.
Dashboard Check
Your current cash flow and project progress across all jobs at a glance. Progress invoices sent automatically.
How Contractors use Klusmaat
Real-world scenarios from the field
New-build home
Coordinate foundation, shell and finishing with multiple subcontractors. Plan milestones, invoice per instalment and keep Wkb documentation up to date automatically.
Renovation with subcontractors
Manage extra work with photo and price, let the client approve digitally and monitor the budget in real time. Every change is documented.
Maintenance & service contracts
Schedule recurring maintenance, assign teams per area and invoice automatically based on the service contract. No job forgotten.
Features for you
These Klusmaat features are especially relevant for Contractors
Dictate a site survey and get an instant calculation. Let AI suggest extra work from photos and answer phone calls automatically.
WhatsApp from clients, email from subcontractors and texts from suppliers — everything in one view per project.
Invoice per milestone or instalment. Klusmaat generates invoices automatically after a phase is completed and tracks outstanding amounts.
Schedule multiple crews and subcontractors across projects. Sync with delivery times and account for dependencies.
Manage material purchases per project, compare supplier quotes and monitor your procurement budget in real time.
Assign tasks to employees and subcontractors, track progress per phase and manage permissions per role.
Store Wkb standards, building code regulations and company procedures. The AI uses this knowledge when answering questions.
“Since Klusmaat I never forget to invoice extra work. That saves me thousands of euros per project.”
A contractor from Amersfoort
Construction company, 8 people + subcontractors