Technician performing an HVAC audit on a building installation

HVAC audit for commercial buildings

Heating, ventilation, air conditioning: are your systems still operating at their nominal efficiency? Powesco measures actual performance and provides you with a prioritized modernization plan with ROI per action.

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  • RGE & ISO 9001 certified
  • ESCO financing available
  • Available aid and subsidies

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01 84 19 86 88 Mon–Fri · 9am–6pm

⚠️ HVAC & Tertiary Sector Decree: HVAC accounts for 40 to 60% of a commercial building's energy consumption. All tertiary buildings larger than 1,000 m² must reduce their energy consumption by 40% by 2030 (Tertiary Sector Decree). An HVAC audit identifies the most effective ways to achieve this.

Our Auditing Expertise

Energy audit, Building Management System (BMS) audit, HVAC audit, PV study, Storage & Charging Station , Decarbonization

What is this

The HVAC audit, to decide where to invest first

In practice

  • For whom?

    Companies, communities, healthcare facilities and asset managers for whom HVAC represents a significant cost item.

  • When ?

    Aging equipment, persistent discomforts, rising bills or prioritization of modernization investments.

  • Duration

    2 to 5 weeks for a standard site, up to 6 weeks for a hospital or complex industrial site.

  • Result

    HVAC diagnostic report, prioritized modernization plan with ROI per action, financing solutions identified.

An HVAC audit helps identify the most relevant actions to sustainably reduce energy consumption, improve thermal comfort, and prepare a rational investment plan. Our engineers measure actual efficiency, analyze regulations, and develop a prioritized, costed, and immediately actionable modernization plan.

  • Complete diagnostic assessment of the condition of equipment (boilers, heat pumps, air handling units, ventilation systems, chillers)
  • Measurement of actual yields (COP, EER, boiler efficiency)
  • Detection of overconsumption and performance discrepancies
  • Control of regulations, water laws and balancing
  • Analysis of thermal comfort by zone
  • Prioritized modernization plan with ROI per action
  • Identification of available funding and aid

What our HVAC audits reveal

  • 15–40 %

    identifiable savings

  • 3–8 weeks.

    completion time

  • Up to 70%

    of the financed cost

  • 350+

    audits carried out in France

What you get

Inventory and technical condition of equipment

From the initial inventory to the delivery of the modernization plan — without interruption of activity.

  • Inventory and technical condition of equipment

    Inventory of all HVAC equipment (boilers, heat pumps, air handling units, ventilation systems, chillers, emitters), recording of technical characteristics, verification of installation dates, last maintenance and failure history.

  • Measurement and analysis of actual yields

    Measurements under real operating conditions: temperatures, flow rates, power consumption vs. nominal values. Calculation of actual performance coefficients (COP, EER) and identification of deviations from manufacturer values.

  • Control of regulations and balancing

    Verification of water laws, control parameters, hydraulic balancing, and consistency between different equipment. Identification of conflicts, pressure losses, and overconsumption related to faulty regulation.

  • Costed and prioritized modernization plan

    Recommendations by equipment: optimization of regulation, targeted repair, or replacement. For each action: estimated investment, annual savings, return on investment, and integration of available subsidies.

Nicolas Georges

Nicolas Georges

Head of HVAC & Energy Management departments at Powesco

THE EXPERT'S WORD

Before replacing equipment, it is necessary to understand why it consumes energy

An HVAC audit helps identify truly useful actions and avoid unnecessary investments. In many cases, optimizing the control system or rebalancing the network can yield significant savings well before any equipment replacement is necessary.

Our Solutions

Other areas of expertise: Audit & Engineering

Energy audit for businesses

Energy audit

Comprehensive analysis of your energy consumption, usage mapping, and a prioritized action plan with ROI for each measure. Compliant with the Energy Directive 2012/27/EU.

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Man & Woman in front of a checkpoint

GTB Audit

Diagnose your automation systems, identify deviations and non-conformities, and provide you with a BACS Decree compliance plan with quantified gains.

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Photovoltaic roof / storage

Photovoltaic study, storage, charging station

Technical and financial feasibility of a self-consumption installation. Sizing, connection study and profitability simulation.

Learn more
Decarbonization & CSRD

Decarbonization & CSRD

Carbon Footprint Scope 1, 2, 3. Emissions reduction plan, SBTi trajectory, CSRD-ready extra-financial reporting and ISO 14001 compliant.

Learn more

Our references

Concrete projects,
tailored to each context

Discover projects similar to yours, classified by sector and type of intervention.
See all our references
EQHO Tower — Paris La Défense
La Défense (92) • 40 floors
HVAC Energy Management GTB offices

EQHO Tower — Paris La Défense

Energy performance as a lever for profitability

Complete energy transformation of a 79,200 m² office tower with €5.8 million in financing over 5 years. Deployment of an advanced building management system and HVAC optimization to maximize performance without compromising comfort.

Challenges

Improve the energy performance of the tower while optimizing operating costs without impacting occupant comfort.

Work completed

• Deployment of an advanced building management system (BMS)
• Optimization of HVAC systems
• Comprehensive energy audit

Measured impact

-24 % energy savings / year
-32 % carbon emissions
Read the full case
Franklin Tower — Paris La Défense
Offices Energy Audit HVAC BMS

Franklin Tower — Paris La Défense

Measured impact

-37 % 5,950 MWh of energy savings per year
-32 % carbon saving
Read the full case
Mercure Courbevoie — La Défense Hotel
Hospitality GTB Relamping

Mercure Courbevoie — La Défense Hotel

Measured impact

-21 % energy savings / year
-29 % carbon emissions
Read the full case

Other projects in the sectors: health, hospitality, logistics, industry, local authorities.

See more projects

Frequently Asked Questions

Frequently Asked Questions

Do you have an energy efficiency project, questions about financing or regulatory obligations? Our experts are here to help.

Speak to an expert

Any company with more than 250 employees or a turnover exceeding €50 million must conduct an energy audit every four years. The HVAC audit is often the first deliverable of this process. Beyond the legal requirement, it remains the essential starting point for any serious energy consumption reduction program.

Do you have any questions? Contact our team

CONTACT US

Let's build your energy project together

Need help with your project?

Customer service available
Monday to Friday from 9am to 12pm

01 84 19 86 88
contact@powesco.fr

Head office

77, rue Marcel Dassault -
92100 Boulogne-Billancourt

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