🏗️ 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 consistent expertise reports for insurers, legal proceedings 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 quickly loses its usefulness for analysis and documentation.

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

Whether dealing with insurers, contradictory expertise or legal proceedings, your conclusions must rely on traceable, time-stamped observations and documentation.

The ready-to-use template

A crack expertise report template designed with field experts

A crack expertise report framework structured by sections and designed around amicable and judicial expertise practices.

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 a clear and documented observation, easy to understand for insurers, legal professionals and clients.

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 expertise templates

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 for insurance claims and contradictory expertise assignments.

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Forensic building expertise

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

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Crack evolution monitoring

Multi-visit monitoring of active cracks with dated measurements, annotated photos, crack gauges and comparative analysis. Ideal for drought-related claims, clay shrinkage-swelling and long-term structural movement assessments.

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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 include detailed, traceable documentation for forensic expertise assignments.
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. Annotated photos help document observations clearly and make crack expertise reports easier to understand for insurers, legal professionals and clients.

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