Arnauld Gahery

I help industrialists secure, optimize, and ensure the reliability of their HVAC/HVAC, dust collection, and utility installations, including in process and ATEX environments, when the stakes are clear: personnel safety, compliance, production continuity, quality, and energy performance.

Are you facing:

Temperature drifts, insufficient ventilation, process discomfort/constraints, recurring breakdowns, unbalanced air networks, uncontrolled pressure drops, ineffective dust collection, dust/ATEX risks, poorly captured extraction, high consumption, or a project to define quickly (workshop modification, compliance upgrade)?

I intervene as a field expert to objectively assess the situation (measurements, facts, risks), propose scenarios, and manage implementation until stabilization.

Structured diagnostics: root causes, points of fragility, risks (safety/process), priorities.

Clear decision-making: CAPEX/OPEX, phasing, operational continuity, ROI.

Technical coordination: production/HSE, operations-maintenance, MOA/MOE, installers.

Execution: actionable deliverables, decisions, action plan.

Types of projects / deliverables

HVAC/HVAC & process ventilation audit (flow rates, pressure drops, balancing, control/BMS).

Dust collection / source capture: diagnosis, recommendations, diagrams.

ATEX (ventilation/capture aspect): technical analysis, measurements, risk reduction (in conjunction with your HSE and applicable regulations).

Utilities: air/ventilation networks, heat recovery, energy optimization.

Design/consultation: reports, diagrams, CCTP, bid analysis.

Commissioning / testing: protocols, test reports, snag lists.

Pragmatic approach “field + decision-making”, 20+ years of experience, ability to speak HSE/process and technical language (aerodynamics, filtration, refrigeration, hydraulics, control).

Interventions throughout France — Daily rate: €1,200 (flat rate possible).