DIAG ON TIME

What DIAG ON TIME does

DIAG ON TIME is a property diagnostic cabinet (cabinet de diagnostic immobilier) based in Versailles, France, operating as a subsidiary of the Agenda Diagnostic network. The company provides six mandatory property diagnostic inspection services required by French law for real estate transactions: Diagnostic Amiante (asbestos detection for pre-1997 buildings), Diagnostic Plomb/CREP (lead risk assessment for pre-1949 buildings), Diagnostic Gaz (gas installation safety for installations over 15 years), Diagnostic Électrique (electrical safety for installations over 15 years), Diagnostic de Performance Énergétique/DPE (energy performance certification with A-to-G rating), and Diagnostic Termites (wood pest inspection). These services are delivered on-site at customer properties through visual inspections, physical sampling, and analytical measurements, producing legally valid diagnostic reports with specified validity periods. The service technology stack is entirely manual and human-certified, with no AI, automation, or digital platform components — competitive differentiation rests on the credentials of the certified diagnostician rather than proprietary technology.

The business is operated as a SASU (Société par actions simplifiée à associe unique) led by Managing Director Gilles Sageot, who brings 25 years of industry experience and serves as the principal certified diagnostiqueur. Revenue is generated on a per-inspection professional services basis, with pricing handled through quote-based transactions rather than published rate cards. Customers request services through phone contact (06.33.08.25.27), email ([email protected]), or an online quote platform hosted by the parent Agenda Diagnostic network at agendadiagnostics.fr. The go-to-market is sales-led and direct, targeting three persona segments: property vendors, landlords/lessors, and real estate professionals requiring compliance documentation for transactions.

The company's geographic footprint is limited to a single cabinet in Versailles (headquartered at 13 rue Saint-Honoré, 78000 Versailles) serving the local market and surrounding Yvelines department, including nearby communes such as Le Chesnay, Vélizy-Villacoublay, and Saint-Cyr-l'École. DIAG ON TIME does not disclose revenue, headcount, or funding in the available data. Its market position is anchored by regulatory necessity (mandatory diagnostics), the Agenda Diagnostic network affiliation for operational support and brand association, and the local expertise of its founder/diagnostician.

Name

DIAG ON TIME

Legal name

DIAG ON TIME

Website

https://diagnostic-immobilier-versailles.fr

Company type

Private

Operating status

Operating

Short description

DIAG ON TIME is a Versailles-based certified property diagnostic cabinet and subsidiary of the Agenda Diagnostic network, providing mandatory asbestos, lead, gas, electrical, energy performance (DPE), and termite inspections for property vendors, landlords, and real estate professionals in the Yvelines department of France.

Ownership category

akta.pro rank

Product category

Property Diagnostic Services

NAICS

Testing Laboratories and Services (541380), Testing Laboratories and Services (54138)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Gas Permit, Code Compliance & Utility Coordination (HSAOAKAL)

akta.pro secondary industry

Smoke & Carbon Monoxide Detector Testing/Replacement (HSAGAOAC)

Keywords

• Property diagnostics
• Real estate inspections
• Asbestos testing
• Lead risk assessment
• Energy performance certificate

Headquarters

HQ city

Versailles

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Diagnostic Services: DIAG ON TIME provides mandatory property diagnostic inspections including asbestos, lead, gas, electrical, energy performance (DPE), and termite assessments. Revenue is generated through professional service fees charged per diagnostic assessment, typically required before property sales or rentals.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

DIAG ON TIME is a property diagnostic services firm based in Versailles, France, providing six mandatory inspection services required for French real estate transactions. The services cover asbestos detection (pre-1997 buildings), lead risk exposure assessment (CREP, pre-1949 buildings), gas installation safety (installations over 15 years), electrical installation compliance (installations over 15 years), energy performance certification (DPE), and termite inspection. Diagnostics are performed on-site by certified diagnostiqueur Gilles Sageot, with legally valid reports issued to property owners, sellers, landlords, and buyers.

Product overview

DIAG ON TIME is a real estate diagnostic service company offering six mandatory diagnostic services for property transactions in France. The services include: Diagnostic Amiante (asbestos detection for pre-1997 properties), Diagnostic Plomb/CREP (lead risk assessment for pre-1949 properties), Diagnostic Gaz (gas installation safety for properties over 15 years), Diagnostic électrique (electrical safety for properties over 15 years), Diagnostic de Performance Énergétique/DPE (energy performance certificate), and Diagnostic Termites (wood pest inspection). These are standalone diagnostic services rather than modules of a unified platform, each addressing specific regulatory requirements for property sales and rentals.

Differentiator

Problem solved

Functional benefit

Products and services

• Diagnostic Amiante Asbestos diagnostic service for real estate properties built before 1997, involving visual inspections, sampling, and analysis of materials suspected to contain asbestos. Required as part of the mandatory diagnostic dossier for property transactions in France.
• Diagnostic Plomb (CREP) Lead risk exposure assessment (Constat de Risque d'Exposition au Plomb) for residential properties built before January 1, 1949, measuring lead concentration in wall coatings and paints. Mandatory before property sale or rental contracts.
• Diagnostic Gaz Interior gas installation inspection for properties with gas installations over 15 years old, verifying safety and identifying potential leaks, explosion, asphyxiation, or intoxication risks. Delivered as a legally valid diagnostic report.
• Diagnostic électrique Electrical installation diagnostic for properties with interior electrical systems over 15 years old, conducting visual checks, tests, and measurements to ensure safety and regulatory compliance.
• Diagnostic de Performance Énergétique (DPE) Energy performance certificate assessing a property's energy consumption and greenhouse gas emissions, including heating, cooling, hot water, and ventilation analysis with A-to-G rating labels. Available for residential and commercial properties.
• Diagnostic Termites Termite inspection service (état parasitaire) for residential properties in infested or at-risk zones, identifying presence or absence of wood-damaging insects in structures. Required for property transactions in designated termite zones.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Agenda DiagnosticcoreStrategic or Co-development PartnerDIAG ON TIME is a subsidiary/filiale of Agenda Diagnostic, a network of diagnostic cabinets. This affiliation provides operational support, a shared quote-request platform (agendadiagnostics.fr), and brand association within the property diagnostic services sector.

Scale indicators1 record

Recent moves3 records

Expansion highlights2 records

Broad incumbents

• Apave: Major French testing, inspection, and certification (TIC) group with broad industrial, building, and environmental services. Overlaps with DIAG ON TIME in regulated building inspections and energy performance assessment at much larger scale.
• Bureau Veritas: Global TIC major with a significant French building and real estate diagnostics practice. Performs energy, asbestos, electrical, and related inspections — directly overlapping with DIAG ON TIME's service suite at much broader geographic and segment scale.
• Socotec: Leading French TIC group providing building diagnostics, energy performance, asbestos, and compliance services. Comparable regulatory and technical overlap with DIAG ON TIME, but operating as a diversified incumbent across many verticals.

Direct peers

• Diag Précision: French nationwide property diagnostics network offering amiante, plomb, gaz, électricité, DPE, termites, and related diagnostics to vendors, landlords, and buyers. Operates the same regulated service suite as DIAG ON TIME across multiple regional cabinets.
• Allo Diagnostiqueurs: National French network of certified diagnostiqueurs immobiliers providing the same six core diagnostics for property transactions. Targets the same customer segments (vendors, landlords, buyers) via a quote-driven, sales-led model.
• Diag Immo: French property diagnostic network with a multi-cabinet footprint offering the same regulated diagnostic suite for real estate transactions. Closely comparable business model and customer base to DIAG ON TIME.
• ABC Diag: Independent French property diagnostics operator offering amiante, plomb, gaz, électricité, DPE, and termite inspections. Competes in the same regulated, transaction-driven market with a similar single-region or multi-cabinet model.

Emerging players

• Dimmo: Digital-first French property diagnostics platform aggregating certified diagnosticians and offering online booking. Targets the same customers as DIAG ON TIME but with a marketplace/tech layer that could disintermediate traditional single-cabinet operators.

Market position

Strengths3 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DIAG ON TIME