🏗️ Trades · Crack experts

Crack expertise report software for building experts and forensic surveyors

Onatys Doc is the crack expertise report software that turns your tablet or smartphone into a true on-site writing tool. Templates dedicated to natural-disaster drought claims, clay shrinkage-swelling, amicable and judicial expertise. Annotated photos directly on-site, voice dictation, crack evolution tracking, mapping on plans: everything is designed to produce precise, traceable and defensible expertise reports for insurance, court and clients.

Drought & clay-swelling templates ready
Annotated photos & on-site dictation
Compliant amicable & judicial expertise
Your daily challenges

We understand the rigor your trade demands

Crack expertise allows no approximation. Onatys Doc was built to give you the documentary rigor and traceability expected by your principals, insurers and courts.

Measurements to retake 6 months later

Comparing a crack measured 6 months ago across multiple photos taken from different angles becomes quickly impossible. Onatys Doc ties measurements, photos and reference points to each visit to ensure clear, unambiguous evolution tracking.

Photos without context

A crack photo without a reference, scale or location on the plan loses all probative value. Our editor lets you annotate each shot directly on-site: ruler, arrows, markers and mapping on the building plan.

Reports that take 4 hours

Synthesizing 60 photos, 20 measurements and 3 visits into a contradictory expertise report can take hours. With a structured template that fills in during the visit, your crack expertise report is ready as you leave the site — and stays consistent across missions.

Conclusions to defend

Against the insurance company, in contradictory expertise or in court, your conclusions must rest on traceable, time-stamped evidence. Onatys Doc records every action, photo and measurement with precise geolocation and timestamping.

The ready-to-use template

A crack expertise report template designed with field experts

A crack expertise report framework structured by sections and compliant with amicable and judicial expertise practices. Adapt the template to your branding and methodology, and create variants based on the type of disorder: drought, ground movement, water damage or differential settlement.

Sections included in the crack expertise report template

  • Identification of property, client and intervening parties
  • Building specifications (year, structure, foundations, soil)
  • Crack mapping on plan or aerial photo
  • Detailed measurements: width, length, depth, orientation
  • Characterization: structural / superficial, active / passive
  • Overall photos, zoomed photos with ruler and markers
  • Hypotheses on origin (drought, claim, ageing…)
  • Evolution diagnostic with installed monitors and gauges
  • Costed recommendations and remediation plan
  • Conclusion, signatures and visit history
Concrete benefits

Why crack experts choose Onatys Doc

Tracked millimetric precision

Capture width, length and depth of each crack with a measurement photo attached. The history is preserved visit after visit and exportable as a synthesis table.

Annotated photo for expertise reports

Each photo becomes self-supporting evidence, readable by an insurer, a judge or the client.

On-site voice dictation

Dictate your observations during the visit: the text is automatically transcribed into the right section of the crack expertise report.

Mapping on plans

The client instantly visualizes the extent of the disorder and grasps your conclusions at a glance.

Chronological evolution tracking

A crack measured at T0, T+3 months then T+6 months: the evolution displays automatically as a graph.

Geolocation & timestamping

Each photo and each measurement is timestamped to the second and geolocated automatically. Your reports come with traceable, verifiable elements on the date and location of the observation — a key asset for the forensic building expert.

Amicable & judicial compliance

Mandatory mentions (parties, statements, contradictory, motivated conclusion) built directly into the crack expertise report template.

Report types

6 ready-to-use crack expertise report templates

The crack expertise report template covers the main missions of building experts, from one-off diagnostic to multi-year evolution tracking.

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Pre-purchase expertise

For buyer, agency or notary: diagnostic of cracks before acquisition, hypotheses on origin of disorders, repair estimates and impact on property value.

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Drought disaster claim report

Template dedicated to drought-rehydration natural-disaster claims and clay shrinkage-swelling: period covered by the disaster decree, clay zoning, oriented crack photos and motivated conclusion for the insurance company — a template designed to meet the requirements of insurers and contradictory expertise.

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Forensic building expertise

Mission ordered by a judge or requested by counsel: framework respecting procedural rules, parties' statements, contradictory and court-defensible conclusion.

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Post-claim structural diagnostic

Settlement, slippage, earthquake or impact: characterization of the damage, structural risk assessment and safety and repair recommendations.

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Co-property audit

Status of cracks on common areas, global mapping, prioritized and costed action plan, report ready to present at the general assembly.

Frequently asked questions

Software and templates for crack expertise reports

Everything building experts and forensic surveyors want to know before choosing a crack expertise report software.

Onatys Doc is the crack expertise report software designed for building experts, forensic surveyors and diagnostic firms. It offers structured templates (drought claims, clay shrinkage-swelling, amicable and judicial expertise), lets you take and annotate photos on-site, dictate your observations out loud, and export the final report as PDF or Word — from your smartphone, tablet or computer.
Yes. Onatys Doc provides several pre-built templates designed by experienced building experts: drought claim template, clay shrinkage-swelling template, amicable insurance expertise template, judicial expertise template, evolution tracking template. Each template is duplicable, editable and adaptable to your branding.
Such a report must prove the link between observed disorders and the drought-rehydration period recognized by the natural-disaster decree. With Onatys Doc, start from the dedicated template: it includes clay zoning identification, the relevant disaster period reminder, fields for measurements (width, length, depth), placeholder slots for oriented crack photos, and a motivated conclusion section addressed to the insurance company.
Clay shrinkage-swelling refers to the dimensional variation of clay soils based on water content: they shrink during drought and swell in wet periods. This creates differential movements that crack buildings on these soils. It is the leading cause of natural-disaster claims in France. Onatys Doc includes a dedicated crack expertise template aligned with insurance company expectations, with clay zoning reminder and oriented photos.
Yes. Onatys Doc offers on-site voice dictation: dictate your observations out loud during the visit, the text transcribes into the right section of the report. A major time saver for experts running multiple visits — the report is almost finished as you leave the site, no more evening typing at the office.
Absolutely. The forensic expertise template includes mandatory mentions (parties, mission, parties' statements, contradictory principle, motivated conclusion), aligned with civil court practice and forensic surveyor associations. Each photo is timestamped to the second and geolocated, with cryptographic fingerprint of the original file — your reports stand up to any court challenge.
Onatys Doc lets you annotate a photo directly on the touchscreen: place a scale ruler, add arrows, circle a zone, write a comment, indicate a measurement. The annotated photo is attached to its section, timestamped and geolocated. It is the key element of a crack expertise report: an annotated photo speaks louder than any text in front of an insurer or a judge.

Are you a crack expert?

Join the beta program now and get early access to the crack expertise template (drought claims, clay shrinkage-swelling, judicial expertise), plus personalized support to adapt it to your methodology. 3 free months of the Pro plan at official launch.

Request the crack expertise template Talk to the team