The Transaction Infrastructure for Service Marketplaces.
Stop losing visibility at the lead. Iskal turns messy client requests into structured jobs, itemised quotes, and transaction-ready workflows.
The Proof
From a single message to a structured Bill of Quantities — automatically.
Guided Intake
Captures missing details and quantities from client conversation.
Project Type
Heat Pump Install
Property
Double-story, 112 sqm
System
Air-to-Water, 9kW
Distribution
Existing radiators
Insulation
Average
Budget Range
€5,000 – €10,000
Extracted Scope
- ●Replace old gas system with heat pump
- ●Keep existing radiators, no new units
- ●Include commissioning & testing
Operational Clarity
Standardized scope, quantities, and categorized line items.
Bill of Quantities
Heat Pump Installation — Residential
| # | Item | Qty | Unit | Unit Price | Total |
|---|---|---|---|---|---|
| 1 | Air-to-Water Heat Pump 9kW | 1 | pcs | €3,200 | €3,200 |
| 2 | Buffer Tank 200L | 1 | pcs | €850 | €850 |
| 3 | Copper Piping | 24 | m | €40 | €960 |
| 4 | Installation Labour | 16 | hrs | €65 | €1,040 |
| 5 | Commissioning & Testing | 1 | flat | €350 | €350 |
Total (excl. VAT)
€6,400
Transaction-Ready Output
Professional, itemized quotes platforms can process.
Marketplaces can generate demand. They can't standardize work.
When a client submits a request, visibility disappears.
Builders interpret the scope differently.
Quotes arrive in inconsistent formats.
Pricing can't be compared fairly.
Platforms obtain no data.
Iskal provides the missing operational layer that moves your platform from lead-generation to transaction infrastructure.
When jobs become structured objects, platforms gain leverage.
Standardizing work doesn't just help the builder — it de-risks the platform and unlocks economic power.
“When a platform can prove it moved 120 Heat Pumps last quarter — with full visibility into job types, specifications, and locations — it gains real leverage to negotiate manufacturer rebates.”
Structure creates negotiating power.
How It Works
Capture client intent via chat, photos, or forms.
Domain AI builds a standardized job model.
Builders generate professional, itemized quotes in minutes.
Enable fair, side-by-side comparison.
Close the loop with structured invoicing.
Access demand visibility across your network.
Built for Platforms. Adopted by Builders.
Iskal fits naturally into the builder's workflow while becoming indispensable to the platform.
Builders remain in full control of pricing and visibility.
“Builders control how their quotes appear.
Iskal only provides structure and speed.”
Who We Are
A founder-led product team building the structural layer behind renovation quoting and delivery. Small team, close partnerships, clear systems.

Christian Johnston
Founder — Product & Job Structure
Founder of Iskal. Background in operational systems and instructional clarity. Focused on structuring complex work into understandable processes.

Matej Senožetnik
Technical Lead — Data & Platform Engineering
Data platform engineering specialist. Experience at Sportradar and Jožef Stefan Institute. Focused on scalable architecture and applied AI systems.
Ready to move beyond lead generation?
Capture the transaction. Own the data. Scale your marketplace.